SERVICE MANUAL

COMPACT COMPONENT SYSTEM

HX-Z1

HX-Z1

COPYRIGHT © 2002 VICTOR COMPANY OF JAPAN, LTD.

No.21111

2002/08

HX-Z1

TABLE OF CONTENTS

1 Important Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.1

Safety Precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.2

Warning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.3

Caution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.4

Critical parts for safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

1.5

Preventing static electricity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.6

Handling the traverse unit (optical pickup) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.7

Attention when traverse unit is decomposed. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

1.8

Important for laser products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Disassembly method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.1

Main board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.2

Front panel assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

3 MECHANISM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.1

CDchanger Mechanism Type VC3 Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3.2

Cassette mechanism section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

4 Adjustment method . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.1

Measurement Instruments Required for Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.2

Measurement conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.3

Radio Input signal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.4

Tuner section. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.5

Standard measurement position of volume . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.6

Arrangement of Adjusting Position . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.7

Flow of functional operation until TOC read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.8

Maintenance of laser pickup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

4.9

Replacement of laser pickup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

5 Description of major ICs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.1

BU2092 (IC811) : Port expander . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.2

KIA7805API (IC360) : Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

5.3

BH3874AKS2 (IC434) : Audio sound processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

5.4

KIA7808API (IC303) : Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

5.5

KIA7812API (IC240) : Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

5.6

NJM4580D (IC501, IC502, IC571) : LPF, Mic and H.phone amp.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

5.7

GP1UM271XK (IC951) : Receiver for remote . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.8

STK402-030 (IC602) : Power amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

5.9

STK412-010 (IC701) : Power amp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

5.10

UPD784975AGF304 (IC810) : Main micon . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

5.11

KIA7809API (IC305) : Regulator . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

5.12

AN22000A-W (IC601) : RF head amp.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

5.13

AN7317 (IC32) : R / P amp. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

5.14

BA15218F-XE (IC602,IC652) : Dual operation amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.15

BA3126N (IC31) : R/P switc . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

5.16

BU4094BCF-X (IC33) : Shift / Store registor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

5.17

BU9253AS (IC901) : LPF & Echo mixer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

5.18

LA1838 (IC1): FM AM IF amp & Detector, FM MPX decoder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

5.19

LA6541-X (IC801) : Servo driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

5.20

LB1641 (IC851,IC852) : DC motor driver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.21

LC72136N (IC2) : PLL frequency synthesizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52

5.22

MN35510AL (IC561) : Digital servo & Digital signal processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

5.23

NJM4580L (IC902) : Dual operational amplifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

2

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SECTION 1

Important Safety Precautions

1.1 Safety Precautions

(1) This design of this product contains special hardware and many circuits and components specially for safety purposes.

For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be performed by qualified personnel only.

(2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom.

(3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteristics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Service

Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety characteristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards.

(4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassembling.

(5) Leakage shock hazard testing)

After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.

Do not use a line isolation transformer during this check.

• Plug the AC line cord directly into the AC outlet. Using a

"Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particularly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage current must not exceed 0.5mA AC (r.m.s.).

• Alternate check method

Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000 ohms per volt or more sensitivity in the following manner. Connect a 1,500 ohm 10W resistor paralleled by a 0.15 µF AC-type capacitor between an exposed metal part and a known good earth ground.

Measure the AC voltage across the resistor with the AC voltmeter.

Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5 mA AC

(r.m.s.).

1.2 Warning

(1) This equipment has been designed and manufactured to meet international safety standards.

(2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained.

(3) Repairs must be made in accordance with the relevant safety standards.

(4) It is essential that safety critical components are replaced by approved parts.

(5) If mains voltage selector is provided, check setting for local voltage.

1.3 Caution

Burrs formed during molding may be left over on some parts of the chassis.

Therefore, pay attention to such burrs in the case of preforming repair of this system.

1.4 Critical parts for safety

In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and

ICP ( ) or identified by the " " mark nearby are critical for safety.

When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (Except the JC version)

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1.5 Preventing static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

1.5.1 Grounding to prevent damage by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as DVD players.

Be careful to use proper grounding in the area where repairs are being performed.

(1) Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the traverse unit (optical pickup) on it.

(2) Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

(3) Handling the optical pickup

(1) In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.

(Refer to the text.)

(2) Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily destroy the laser diode.

1.6 Handling the traverse unit (optical pickup)

(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.

(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a time when attaching it to the connector.

(3) Handle the flexible cable carefully as it may break when subjected to strong force.

(4)I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.

1.7 Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for the CD pickup unit.

• Apply solder to the short land before the flexible wire is disconnected from the connector on the CD pickup unit.

(If the flexible wire is disconnected without applying solder, the CDpickup may be destroyed by static electricity.)

• In the assembly, be sure to remove solder from the short land after connecting the flexible wire.

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1.8 Important for laser products

(1) CLASS 1 LASER PRODUCT

(2) DANGER : Invisible laser radiation when open and inter lock failed or defeated. Avoid direct exposure to beam.

(3) CAUTION : There are no serviceable parts inside the

Laser Unit. Do not disassemble the Laser Unit. Replace the complete Laser Unit if it malfunctions.

(4) CAUTION : The compact disc player uses invisible laser radiation and is equipped with safety switches which prevent emission of radiation when the drawer is open and the safety interlocks have failed or are de feated.

It is dangerous to defeat the safety switches.

(5) CAUTION : If safety switches malfunction, the laser is able to function.

(6) CAUTION : Use of controls, adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure.

CAUTION

Please use enough caution not to see the beam directly or touch it in case of anadjustment or operation check.

VARNING

Osynlig laserstrålning är denna del är öppnasd och spårren är urkopplad. Betrakta ej strålen.

ADVARSEL

Usynlig laserstrling ved åbning, når sikkerhedsafbrydere er ude af funktion. Undgå udsasttelse for stråling.

VARO

Avattaessa ja suojalulitus ohitettaessa olet alttiina näkymättömälle lasersateilylle. Älä katso säteeseen.

ADVARSEL

Usynlig laserstråling ved åpning, når sikkerhetsbryteren er avslott. unngå utsettelse for stråling.

PRODUCTION AND POSITION OF LABELS

WARNING LABEL

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SECTION 2

Disassembly method

2.1 Main board

2.1.1 Removing the metal cover

(See Fig.1 ~ 3)

• Remove the six screws A on the back of the body.

• Remove the screw B on each side of the body.

• Remove the metal cover from the body by lifting the rear part of the cover.

CAUTION:

Do not break the front panel tab fitted to the metal cover.

2.1.2 Removing the CD changer mechanism assembly

(See Fig.4, 5)

• Prior to performing the following procedure, remove the metal cover.

(1) Disconnect the card wire from connector CN651 on the

CD servo control board on the right bottom of the CD changer mechanism assembly.

(2) Remove the four screws C attaching the CD changer mechanism assembly on top of the body.

(3) Remove the CD changer mechanism assembly while lifting the rear part.

CAUTION:

Do not damage the CD fitting when removing the CD changer mechanism assembly.

Fig.3

Fig.4

Fig.1

Fig.5

Fig.2

6

2.1.3

Removing the front panel assembly

(See Fig.6 ~ 9)

• Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly.

(1) Disconnect the card wire from connector CN44 and

CN870 on the main board on the right side of the body.

Remove the screw D attaching the wire from extending from the underside of the front panel assembly.

(2) Disconnect the wire from connector CN701 on the bridge board.

(3) Cut the tie band.

(4) Disconnect the wire from connector CN231 and CN232 on the primary board on the left side of the body and remove the band fixing the wire.

(5) Remove the plastic rivet attaching the inner bar in the center of the front panel assembly.

REFERENCE:

Keep the plastic rivet for reuse.

(6) Remove the three screws E attaching the front panel assembly at the bottom of the body.

(7) Release the two joints a on the lower left and right sides of the front panel assembly using a screwdriver, and remove the front panel assembly toward the front.

REFERENCE:

Front panel need to be tilt a little bit as release from bottom chassis.

Fig.6

Fig.7

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Fig.8

Fig.9

7

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2.1.4 Removing the antenna board

(See Fig.10, 11)

• Prior to performing the following procedure, remove the metal cover.

REFERENCE:

There is no need to remove the CD changer mechanism assembly.

(1) Disconnect the card wire from connector CN1 on the antenna board on the right side of the body.

(2) Remove the band attaching the antenna board.

(3) Remove the two screws F on the rear panel on the back of the body.

Fig.10

Fig.11

8

2.1.5

Removing the rear panel

(See Fig.12 ~ 17)

• Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly.

(1) Remove holding board by remove two plastic rivets and then slide out the holding board as shown in fig. 12.

(2) Disconnect fan wire from connector CN206.

(3) Cut off the tie band that tied fan wire on inner bar.

(4) Remove eight screws F from rear panel.

(5) Detach joint b to release rear panel from inner bar.

(6) Release joints c which on right bottom and left bottom of rear panel. The joint can be release by pull outward the side of rear panel.

REFERENCE:

Fan assembly will come off with rear panel.

Fig.12

Fig.13

Fig.14

Fig.15

Fig.16

Fig.17

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2.1.6 Removing the fan assembly

(See Fig.18, 19)

• Prior to performing the following procedure, remove the metal cover and the CD changer mechanism assembly and the rear panel.

(1) Remove two screws G on the rear panel.

(2) Rotate fan assembly in clockwise direction to release fan assembly from rear panel (joint d).

Fig.18

2.1.7 Removing the main board

(See Fig.20)

• Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly, the antenna board and the rear panel.

(1) Disconnect the card wire from connector CN44,CN922 and CN870 on the main board.

(2) Remove the screw D attaching the board.

(3) Disconnect connector CN217 and CN311 on the main board outward and release from the base chassis (joint e) upward.

Fig.19

Fig.20

10

2.1.8

Removing the bridge board / regulator board / heat sink (See Fig.21 ~ 27)

• Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly, the rear panel, the antenna board and main board.

(1) Remove the plastic rivet attaching the stay inner bar and remove the screw H on the bridge board.

(2) Move the inner bar forward and upward to release from the front section (joint f) and from the bridge board (two joints

h) respectively.

(3) Remove the two plastic rivets setting the holding board fixing the bridge board and the primary board. Move the bracket board in the direction of the arrow.

(4) Disconnect the wire from connector CN212, CN213 and

CN214 on the primary board respectively and remove the band attaching the wires.

(5) Disconnect the wire from connector CN701 on the bridge board.

Fig.24

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Fig.25

Fig.21

Fig.22

Fig.23

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(6) Remove the two screws I attaching the heat sink bracket and move the heat sink in the direction of the arrow to release from the base chassis (two joints i). The bridge board and the regulator board come off with the heat sink.

(7) Remove the two screws J attaching the heat sink bracket.

(8) Remove the two screws M, detach bridge board from regulator board by disconnect connector CN205.

(9) Remove the screws K and L to detach regulator board from heat sink.

CAUTION:

As assembly back the regulator board and bridge board to heat sink.

Regulator board MUST be assembly to heat sink first and screw K and L MUST be screwed before bridge board attach to regulator board.

Fig.26

Fig.27

12

2.1.9

Removing the power transformer assembly

(See Fig.28, 29)

• Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly, the rear panel, the main board and the bridge board / regulator board.

(1) Remove the screw N attaching the primary board.

(2) Disconnect the wire from connector CN231 and CN232 on the primary board.

(3) Remove the four screws O attaching the power transformer assembly.

(4) Cut the tie band and detach power cord from primary board.

REFERENCE:

When disconnecting the power cord from connector CN250 on the primary board, remove the fixing band.

Fig.28

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2.2 Front panel assembly

• Prior to performing the following procedure, remove the metal cover, the CD changer mechanism assembly and the front panel assembly.

2.2.1

Removing the cassette mechanism assembly

(See Fig.30)

(1) Disconnect the card wire from connector CN33 on the head amplifier & mechanism control board.

(2) Remove the two screws P, and the screw Q attaching the cassette mechanism assembly.

2.2.2

Removing the headphone board

(See Fig.30)

(1) Remove the screw Q attaching the wire extending from the headphone board.

(2) Remove the screw R and pull out the headphone board backward.

Fig.29

Fig.30

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2.2.3 Removing the display system control board

(See Fig.31, 32)

(1) Remove the four screws S attaching the stay bracket (1).

(2) Disconnect the card wire from connector CN43 and

CN880 on the display system control board.

Remove the ten screws T attaching the display system control board.

Fig.31

2.2.4 Removing the bottom board

(See Fig.33 ~ 35)

• Prior to performing the following procedure, remove the display system control board.

(1) Pull out preset knob, sound mode knob on the front panel toward the front.

(2) Remove the nut at volume knob encoder from front panel.

(3) Remove the four screws U attaching the stay bracket (2).

(4) Remove the eight screws V attaching the bottom board.

Fig.32

Fig.34

Fig.35

Fig.33

14

SECTION 3

MECHANISM

3.1 CDchanger Mechanism Type VC3 Section

3.1.1

Removing the CD Servo control board

(See Fig.1)

(1) Remove the metal cover.

(2) Remove the CD changer mechanism assembly.

(3) From bottom side the CD changer mechanism assembly,remove the four screws A retaining the CD servo control board.

(4) Absorb the four soldered positions a of the right and left motors with a soldering absorber.

(5) Pull out the earth wire on the CD changer mechanism assembly.

(6) Disconnect the connector CN854 on the CD servo control board.

(7) Disconnect the card wire CN601 and the connector

CN801 on the CD servo control board.

Fig.1

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3.1.2 Removing the CD tray assembly

(See Fig.2~9)

(1) Remove the front panel assembly.

(2) Remove the CD changer mechanism assembly.

(3) Remove the CD Servo control board.

(4) Remove the screw B' retaining the lod stopper.

(5) From the T.bracket section "b" and clamper base section

"c" , remove both of the edges fixing the rod(See Fig.2 and

3).

(6) Remove the screw B retaining the disc stopper

(See Fig.3).

(7) Remove the three screws C retaining the T.bracket

(See Fig.3).

(8) Remove the screw D retaining the clamper assembly

(See Fig.3).

(9) From the left side face of the chassis assembly, remove the one screw E retaining both of the return spring and lock lever(See Fig. 4).

(10) By removing the pawl at the section d fixing the return spring, dismount the return spring(See Fig.4).

(11) Remove the three lock levers(See Fig.4).

(12) Check whether the lifter unit stopper has been caught into the hole at the section e of CD tray assembly as shown in

Fig.5.

(13) Make sure that the driver unit elevator is positioned as shown in Fig.6 from to the second or fifth hole on the left side face of the CD changer mechanism assembly.

[Caution]

In case the driver unit elevator is not at above position, set the elevator to the position as shown in Fig.7 by manually turning the pulley gear as shown in Fig.8.

(14) Manually turn the motor pulley in the clockwise direction until the lifter unit stopper is lowered from the section e of

CD tray assembly(See Fig.8).

(15) Pull out all of the three stages of CD tray assembly in the arrow direction f until these stages stop

(See Fig.9).

(16) At the position where the CD tray assembly has stopped, pull out the CD tray assembly while pressing the two pawls

g and g' on the back side of CD tray assembly(See Fig.9).

In this case, it is easy to pull out the assembly when it is pulled out first from the stage CD tray assembly.

Fig.2

Fig.3

Fig.4

16

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

HX-Z1

17

HX-Z1

3.1.3 Removing the CD loading mechanism assembly

(See Fig.10)

(1) While turning the cams R1 and R2 assembly in the arrow direction h ,align the shaft i of the CD loading mechanism assembly to the position shown in Fig.10.

(2) Remove the four screws F retaining the CD loading mechanism assembly.

3.1.4 Removing the CD traverse mechanism

(See Fig.11 and 12)

(1) For dismounting only the CD traverse mechanism without removing the CD loading mechanism assembly, align the shaft j of the CD loading mechanism assembly to the position shown Fig.11 while turning the cam R1 and R2 assembly in the arrow direction k .

(2) By raising the CD loading mechanism assembly in the arrow direction l , remove the assembly from the lifter unit

(See Fig.12).

Fig.10

Fig.11

Fig.12

18

3.1.5

Removing the CD pick unit

(See Fig.13 )

(1) Move the cam gear in the arrow direction m . Then, the CD pickup unit will be moved in the arrow direction n .

(2) According to the above step, shift the CD pickup unit to the center position.

(3) While pressing the stopper retaining the shaft in the arrow direction o , pull out the shaft in the arrow direction p .

(4) After dismounting the shaft from the CD pickup unit, remove the CD pickup unit

3.1.6

Removing the try select switch board

(See Fig.14)

(1) Remove the two screws G retaining the tray select switch board.

(2) Disconnect the tray select switch board from connector

CN804 on the CD servo control board.

Fig.13

HX-Z1

Fig.14

19

HX-Z1

3.1.7 Removing the cam unit

(See Fig.15 ~17 )

(1) Remove the CD loading mechanism assembly.

(2) While turning the cam gear q , align the Paul r position of the drive unit to the notch position(Fig.16) on the cam gear

q .

(3) Pull out the drive unit and cylinder gear(See Fig.17).

(4) While turning the cam gear q , align the Paul s position of the select lever to the notch position(Fig.18) on the cam gear q .

(5) Remove the four screws H retaining the cam unit(cam gear q and cams R1/R2 assembly)(See Fig.18).

Fig.15

Fig.16

Fig.17

20

3.1.8

Removing the actuator motor and belt

(See Fig.18~21)

(1) Remove the two screws I retaining the gear bracket

(See Fig.18).

(2) While pressing the pawl t fixing the gear bracket in the arrow direction, remove the gear bracket

(See Fig.18).

(3) From the notch u section on the chassis assembly fixing the edge of gear bracket, remove and take out the gear bracket(See Fig. 19).

(4) Remove the belts respectively from the right and left actuator motor pulleys and pulley gears(See Fig. 18).

(5) After turning over the chassis assembly, remove the actuator motor while spreading the four pawls v fixing the right and left actuator motors in the arrow direction(See Fig.

20).

[Note]

When the chassis assembly is turned over under the conditions wherein the gear bracket and belt have been removed, then the pulley gear as well as the gear, etc. constituting the gear unit can possibly be separated to pieces. In such a case, assemble these parts by referring to the assembly and configuration diagram in Fig. 21.

Fig.18

HX-Z1

Fig.19

Fig.20

Assembly and Configuration Diagram

Fig.21

21

HX-Z1

3.1.9 Removing the cams R1/R2 assemblyand cam gear q

(See Fig.22)

(1) Remove the slit washer fixing the cams R1 and R2 assembly.

(2) By removing the two pawls w fixing the cam R1, separate

R2 from R1.

(3) Remove the slit washer fixing the cam gear q .

(4) Pull out the cam gear q from the C.G. base assembly.

3.1.10 Removing the C.G. base assembly

(See Fig.22 and 23)

Remove the three screws J retaining the C.G. base assembly.

[Caution]

To reassemble the cylinder gear, etc.with the cam unit (cam gear and cans R1/R2 assembly), gear unit and drive unit, align the position of the pawl x on the drive unit to that of the notch on the cam gear q . Then, make sure that the gear unit is engaged by turning the cam gear q (See Fig. 23).

Fig.22

Fig.23

22

3.2 Cassette mechanism section

3.2.1

Removing the playback / recording & eraser head

(See Fig. 1 ~ 3)

(1) While shifting the trigger arms seen on the right side of the head mount in the arrow direction, turn the flywheel R in counterclockwise direction until the head mount has gone out with a click (See Fig. 1).

(2) When the flywheel (R) is rotated in counterclockwise direction, the playback / recording & eraser head will be turned in counterclockwise direction from the position in

Fig. 2 to that in Fig. 3.

(3) At this position, disconnect the flexible P.C. board (outgoing from the playback / recording & eraser head) from the connector CN31 on the head amplifier & mechanism control P.C. board.

(4) Remove the flexible P.C. board from the chassis base.

(5) Remove the spring a from behind the playback / recording

& eraser head.

(6) Loosen the reversing azimuth screw retaining the playback / recording & eraser head.

(7) Take out the playback / recording & eraser head from the front of the head mount.

(8) The playback / recoring & eraser head should also be removed similarly according to steps 1 to 7 above.

3.2.2

Reassembling the playback / recording & eraser head

(See Fig.2, 3)

(1) Reassemble the playback head from the front of the head mount to the position as shown in Fig. 3.

(2) Fix the reversing azimuth screw.

(3) Set the spring 1 from behind the playback / recording & eraser head.

(4) Attach the flexible P.C. board to the chassis base, as shown in Fig. 4.

(5) The playback / recording & eraser head should also be reassembled similarly to step 1 to 4 above.

Fig.1

Fig.2

Fig.3

HX-Z1

23

HX-Z1

3.2.3 Removing the head amplifier & mechanism control board (See Fig. 4)

(1) Remove the cassette mechanism assembly.

(2) After turning over th cassette mechanism assembly, remove the three screws A retaining the head amplifier & mechanism control board.

(3) Disconnect the connector CN32 on the board including the connector CN1 on the reel pulse P.C. board.

(4) When necessary, remove the 4 pin parallel wire soldered to the main motor.

3.2.4 Removing the main motor assembly

(See Fig.4 ~ 7)

(1) Remove the two screws B retaining the main motor assembly (See Fig. 4 and 5).

(2) While raising the main motor, remove the capstan belt from the motor pulley (See Fig. 5).

CAUTION:

Be sure to handle the capstan belt so carefully that this belt will not be stained by grease and other foreign matter. Moreover, this belt should be hanged while referring to the capstan belt hanging method in Fig. 6 and 7.

Fig.4

Fig.5

Fig.6

Fig.7

24

3.2.5

Removing the flywheel (See Fig. 8, 9)

(1) Remove the head amplifier & mechanism control P.C.

board.

(2) Remove the main motor assembly.

(3) After turning over the cassette mechanism, remove the two slit washers and fixing the capstan shafts R and L, and pull out the flywheel (R) and (L) respectively from behind the cassette mechanism.

Fig.8

3.2.6

Removing the reel pulse P.C. board and solenoid

(See Fig. 10)

(1) Remove the five pawls a to e reattaining the reel pulse board.

(2) From the surface of the reel pulse board parts, remove the two pawls f and g retaining the solenoid.

Fig.9

HX-Z1

Fig.10

25

HX-Z1

26

HX-Z1

4.1 Measurement Instruments Required for Adjustment

(1) Low frequency oscillator

This oscillator should have a capacity to output 0dBs to

600OHM at an oscillation frequency of 50Hz-20kHz.

(2) Attenuator impedance : 600OHM

(3) Electronic voltmeter

(4) Distortion meter

(5) Frequency counter

(6) Wow & flutter meter

(7) Test tape

VT703L : Head azimuth

VT712 : Tape speed and running unevenness

(3kHz)

VT724 : Reference level (1kHz)

(8) Blank tape

TYPE áT: AC-225

TYPE áU: AC-514

(9) Torque gauge : For play and back tension

FWD(TW2111A), REV(TW2121a) and

FF/REW(TW2231A)

(10) Test disc: CTS-1000

4.2 Measurement conditions

Power supply voltage

AC120V (60Hz) : Ver.J,C

Reference output : Speaker: 0.775V/4OHM

: Headphone : 0.077V/32OHM

Reference frequency and input level ------------------------------------------ 1kHz, AUX : -8dBs

Measurement output terminal -----------------at Speaker J3002

* Load resistance -----------------------------4OHM

4.3 Radio Input signal

AM frequency ------------------------------------- 400Hz

AM modulation ------------------------------------30%

FM frequency --------------------------------------400Hz

FM frequency deviation -------------------------22.5kHz

SECTION 4

Adjustment method

4.4 Tuner section

Aversion: FW 87.5MHz~108.0MHZ

AM 522KHz~1629KHz

UW,UJ version: FM 87.5MHz~108.0MHz

AM 531KHz~1710KHz(9KHz step)

AM 530KHz~1710KHz(10KHz step)

Voltage applied to tuner-------------------------+B : DC5.7V

VT : DC 12V

Reference measurement output---------------------------------- 26.1mV(0.28V)/3OHM

Input positions-----------------------AM : Standard loop antenna

FM : TP1 (hot) and TP2 (GND)

4.5 Standard measurement position of volume

Function switch-----------------------------------------to Tape

Beat cut switch----------------------------------------- to Cut

Super Bass/Active hyper Bass--------------------- to OFF

Bass Treble--------------------------------------------- to OFF

Bass Treble--------------------------------------------- to OFF

Adjustment of main volume to reference output

VOL : 28

Precautions for measurement

(1) Apply 30pF and 33kOHM to the IF sweeper output side and 0.082µF and 100kOHM in series to the sweeper input side.

(2) The IF sweeper output level should be made as low as possible within the adjustable range.

(3) Since the IF sweeper is a fixed device, there is no need to adjust this sweeper.

(4) Since a ceramic oscillator is used, there is no need to perform any MIX adjustment.

(5) Since a fixed coil is used, there is no need to adjust the

FM tracking.

(6) The input and output earth systems are separated.

In case of simultaneously measuring the voltage inboth of the input and output systems with an electronic voltmeter for two channels, therefore, the earth should be connected particularly carefully.

(7) In the case of BTL connection amp., the minus terminal of speaker is not for earthing. Therefore, be sure not to connect any other earth terminal to this terminal. This system is of an BTL system.

(8) For connecting a dummy resistor when measuring the output, use the wire with a greater code size.

(9) Whenever any mixed tape is used, use the band pass filter (DV-12).

27

HX-Z1

4.6 Arrangement of Adjusting Position

Cassette mechanism section Cassette mechanism section (Back side)

Cassette AMP board

28

HX-Z1

4.6.1

Tape Recorder Section

Items Measurement conditions

Confirmation of head angle

Test tape

: VT703L (8kHz)

Measurement output terminal

: Speaker terminal

Speaker R

(Load resistance: 4OHM)

: Headphone terminal

Measurement method Standard

Values

(1) Playback the test tape VT703L (8kHz)

(2) With the recording & playback mechanism, adjust the head azimuth screw so that the forward and reverse output levels become maximum.

After adjustment, lock the head azimuth at least by half turn.

(3) In either case, this adjustment should be performed in both the forward and reverse directions with the head azimuth screw.

Maximum output

Confirmation of tape speed

Test tape

: VT712 (3kHz)

Measurement output terminal

: Headphone terminal

Adjust VR37 so that the frequency counter reading becomes 2,940~3,090Hz when playing back the test tape VT712 (3kHz) with playback and recording mechanism after ending forward winding of the tape.

Tape speed of deck

: 2,940 ~

3,090Hz

VR37

Adjusting positions

Adjust the head azimuth screw only when the head has been changed.

4.6.2

Reference Values for Confirmation Items

Items

Difference between the forward and reverse speed

Measurement conditions Measurement conditions Standard

Values

Adjusting positions

Test tape

: VT712 (3kHz)

Measurement output terminal

: Speaker terminal

Speaker R

(Load resistance: 4OHM)

Measurement output terminal

: Headphone

When the test tape VT712 (3kHz) has been played back with the recording and playback mechanism at the beginning of forward winding, the frequency counter reading of the difference between both of the mechanism should be 6.0Hz or less.

6.0Hz or less Head azimuth screw

Wow & flutter Test tape

: VT712 (3kHz)

Measurement outputterminal

: Headphone terminal

When the test tape VT712 (3kHz) has been played back with the recording and playback mechanism at the beginning of forward winding, the frequency counter reading of wow & flutter should be 0.25% or less(WRMS).

0.25% or

less

(WRMS)

29

HX-Z1

4.6.3 Electrical Performance

Items Measurement conditions

Adjustment of recording bias current

(Reference

Value)

• Mode: Forward or reverse mode

• Recording mode

• Test tape

: AC-514 to TYPE 2 and AC-225 to

TYPE1

Measurement output terminal

: Both recording and headphone terminals

Measurement method Standard

Values

(1) With the recording and playback mechanism, load the test tapes (AC-514 to TYPE 2 and AC-

225 to TYPE 1), and set the mechanism to the recording and pausing condition in advance.

(2) After connecting 100OHM in series to the recorder head, measure the bias current with a valve voltmeter at both of the terminals.

(3) After resetting the [PAUSE] mode, start recording. At this time, adjust VR31 for Lch and VR32 for Rch so that the recording bias current values become 4.0µA (TYPE 1) and 4.20µA

(TYPE 2).

AC-225

: 4.20 µA

AC-514

: 4.0 µA

Adjustment of recording and playback frequency characteristics

Reference frequency

: 1kHz and 10kHz

(REF.: -20dB)

Test tape

: AC-514 to TYPE 2

Measurement input terminal

: OSC IN

(1) With the recording and playback mechanism, load the test tapes (AC-514 to TYPE 2), and set the mechanism to the recording and pausing condition in advance.

(2) While repetitively inputting the reference frequency signal of 1kHz and 10kHz from OSC IN, record and playback the rape.

(3) While recording and playback the test tape in

TYPE 2, adjust VR31 for Lch and VR32 for Rch so that the output deviation between 1kHz and

10kHz becomes

-1dB 2dB.

Output deviation between

1kHz and

10kHz

: -1dB 2dB

4.6.4 Reference Values for Electrical Function Confirmation Items

Items

Recording bias frequency

Eraser current

(Reference value)

Measurement conditions

Forward or reverse

• Recording mode

: TYPE 2(AC-514)

• Measurement terminal : BIAS TP on

P.C. board

Forward or reverse

• Recording mode

• Test tape

: AC-514 to TYPE 2 and AC-225 to

TYPE 1 terminal : Both of the eraser head terminals

Measurement method Standard

Values

(1) While changing over to and from BIAS 1 and 2, confirm that the frequency is changed.

(2) With the recording and playback mechanism, load the test tape.

(AC-514 to TYPE 2), and set the mechanism to the recording and pausing condition in advance.

(3) Confirm that the BIAS TP frequency on the

P.C. board is 100kHz 6kHz.

100 kHz

6 kHz

(1) While recording and playback mechanism, load the test tapes (AC-514 to TYPE 2 and AC-

225 to TYPE 1), and set the mechanism to the recording and pausing conditions in advance.

(2) After setting to the recording conditions, connect 1W in series to the eraser head on the recording and playback mechanism side, and measure the eraser current from both of the eraser terminals.

TYPE 2

: 120 mA

TYPE 1

: 75 mA

Adjusting positions

VR31

VR31

Adjusting positions

30

4.6.5

Extension code connecting method

HX-Z1

31

HX-Z1

4.7 Flow of functional operation until TOC read

32

4.8 Maintenance of laser pickup

(1) Cleaning the pick up lens

Before you replace the pick up, please try to clean the lens with a alcohol soaked cotton swab.

(2) Life of the laser diode

When the life of the laser diode has expired, the following symptoms will appear.

a) The level of RF output (EFM output : ampli tude of eye pattern) will below.

4.9 Replacement of laser pickup

HX-Z1

(3) Semi-fixed resistor on the APC PC board

The semi-fixed resistor on the APC printed circuit board which is attached to the pickup is used to adjust the laser power. Since this adjustment should be performed to match the characteristics of the whole optical block, do not touch the semi-fixed resistor.

If the laser power is lower than the specified value, the laser diode is almost worn out, and the laser pickup should be replaced.

If the semi-fixed resistor is adjusted while the pickup is functioning normally, the laser pickup may be damaged due to excessive current.

33

HX-Z1

5.1 BU2092 (IC811) : Port expander

• Pin Layout

SECTION 5

Description of major ICs

• Pin function

Pin No.

Symbol

1 Vss

2 DATA

3 CLOCK

4 LCK

5~16 Q0~Q11

I/O

Connect to GND

Function

I Serial Data input

I Shift Clock of Data

I Latch Clock of Data

O Parallel Data Output

17 OE

18 Vdd

I Output Enable

Power Supply

34

5.2 KIA7805API (IC360) : Regulator

• Pin layout

• Block diagram

HX-Z1

35

HX-Z1

5.3 BH3874AKS2 (IC434) : Audio sound processor

• Pin layout

• Block diagram

36

27

28

29

30

23

24

25

26

31

32

33

19

20

21

22

15

16

17

18

11

12

13

14

7

8

9

10

• Pin function

Pin No.

Name

1

2

F1R1

Function

Rch GREQ f1 filter setting pin

F1R2 Rch GREQ f1 filter setting pin

5

6

3

4

F2L1

F2L2

F2R1

F2R2

Lch GREQ f2 filter setting pin

Lch GREQ f2 filter setting pin

Rch GREQ f2 filter setting pin

Rch GREQ f2 filter setting pin

F3L1

FAL2

F3R1

F3R2

F4L1

F4L2

F4R1

F4R2

Lch GREQ f3 filter setting pin

Lch GREQ f3 filter setting pin

Rch GREQ f3 filter setting pin

Rch GREQ f3 filter setting pin

Lch GREQ f4 filter setting pin

Lch GREQ f4 filter setting pin

Rch GREQ f4 filter setting pin

Rch GREQ f4 filter setting pin

F5L

F5R

HPFL1

HPFL2

HPFL3

HPFR1

HPFR2

HPFR3

BASS1

BASS2

BASS3

BASS4

BASS5

FILTER

CAP

VCC

OUTR

OUTL

STEPC

Lch GREQ f5 filter setting pin

Rch GREQ f5 filter setting pin

Lch high-pass filter setting pin

Lch high-pass filter setting pin

Lch high-pass filter setting pin

Rch high-pass filter setting pin

Rch high-pass filter setting pin

Dynamic bass filter setting pin

Dynamic bass filter setting pin

Dynamic bass filter setting pin

Dynamic bass filter setting pin

Dynamic bass filter setting pin

Biamp output pin

VCC/2 pin

ALC trap frequency setting pin

Power supply pin

Rch output pin

Lch output pin

Time conatant attachment for switching shook protection

60

61

62

63

64

56

57

58

59

52

53

54

55

48

49

50

51

44

45

46

47

40

41

42

43

Pin No.

Name

34

35

SI

Function

Serial data larch receiving pin

SCK Serial clook receiving pin

36

37

38

39

A

B

C

BPOUT

Parallel data receiving pin

Parallel data receiving pin

Parallel data receiving pin

Output pin for spectrum analyzer

BPNF

INLA

INRA

INLB

INRB

INLC

INRC

INLD

Spectrum analyzer level setting pin

Lch input pin A

Rch input pin A

Lch input pin B

Rch input pin B

Lch input pin C

Rch input pin C

Lch input pin D

INRD

ALCC

ALCR

RECL

REOR

VFC1

GND

VFC2

MIC

DPLL1

DPLL2

DPLR1

DPLR2

PS1

PS2

Rch input pin D

Time constant of ALC setting pin

ALC level setting pin

Lch RECOUT output pin

Rch RECOUT output pin

Vocal fade filter setting pin

Ground pin

Vocal fade filter setting pin

Input pin for microphone

Lch output pin for DPL

Lch input pin for DPL

Rch output pin for DPL

Rch input pin for DPL

Surround setting pin

Surround setting pin

F1L1 Lch GREQ f1 filter setting pin

F1L2 Lch GREQ f1 filter setting pin

HX-Z1

37

HX-Z1

5.4 KIA7808API (IC303) : Regulator

• Pin layout

• Block diagram

38

5.5 KIA7812API (IC240) : Regulator

• Pin layout

• Block diagram

HX-Z1

39

HX-Z1

5.6 NJM4580D (IC501, IC502, IC571) : LPF, Mic and H.phone amp.

• Pin layout

• Block diagram

40

5.7 GP1UM271XK (IC951) : Receiver for remote

5.8 STK402-030 (IC602) : Power amp

• Pin layout

• Block diagram

HX-Z1

41

HX-Z1

5.9 STK412-010 (IC701) : Power amp

• Pin layout

• Block diagram

42

HX-Z1

5.10 UPD784975AGF304 (IC810) : Main micon

• Pin layout

• Pin function

11

12

13

14

7

8

9

10

Pin No.

1

2

5

6

3

4

Name

AVDD

SPIDTI

MSI

MPX

H/P

KEY1

I/O Function

AD VDD, same as VDD1

I SPI analog input

Pin No.

36

37

I Music scan input

I Tuner stereo indicator

38

39

I SW vol IC btw bi-amp & dyn & off relay 40

I Key 1 input 41

KEY2

KEY3

VOL-

VOL+

I Key 2 input Key 3 input

I Key 3 input

I Volume decrease

I Volume increase

SLCPLAY I SLC detect play

SLCKEY I SLC key input

PHOTO A I SLC photo A

AVSS AD VDD, same as VSS1

46

47

48

49

42

43

44

45

31

32

33

34

35

15

16

17

18

VSS1

X1

X2

VDD1

GND

I Oscillation

-

Oscillation

19 IC(VPP) Connect to VSS1

20 VC3RESET I/O VC3 reset

21

22

MSTAT

KCMND

I/O VC3 status input

I/O VC3 KCMND(serial data)

23 RDS DATA I/O RDS data

24 RDS CK INT RDS clock

25

26

BUZZER

REMIN

I/O Buzzer on

INT Remocon input

27

28

SMUTE I/O System mute

SLCCE I/O SLC chip enable

29 CK I/O SLC / tuner clock

30 DATA OUT I/O SLC / tuner data out

DATA IN I/O Tuner data in

SMI/O Soundmode reverse

SM+ I/O Soundmode forward

ECHO1 I/O Echo 1 data

ECHO2 I/O Echo 2 data

Name

SPI A

SPI B

SPI C

PBMUTE I/O Playback mute

VSS0

VDD0

RESET

INH

I/O Function

I/O SPI A data

I/O SPI B data

I/O SPI C data

-

-

I Micom reset

I/O Back-up mode detect

LATCH I/O Latch for vol IC

VOLCK I/O Volume clock

VOLDA I/O Volume data

RELAY I/O Relay out

POUT I/O Power on

ECON I/O Ecology mode

54

55

56

57

50

51

52

53

PRT I/O Protector in

AUXMUTE O Auxmute

TUCE O Tuner chip enable

O Available pin

EXTDA

EXTCK

EXTCE

O Available pin

O External IC data

O External IC clock

O External IC strobe

58

59

60

61

OEEXT O Output enable for external IC

VOLLED I/O Volume led

FSEARCH I/O Forward skip

RSEARCH I/O Reverse skip

62~78 S21~S5 I/O FL segment

79 VDD2 I/O

80

81~84

VLOAD

S4~S1

I/O Negative power supply(-30V)

I/O FL segment

85~100 G16~G1 I/O FL display grid

43

HX-Z1

5.11 KIA7809API (IC305) : Regulator

• Pin layout

• Block diagram

44

5.12 AN22000A-W (IC601) : RF head amp.

• Pin layout

• Block diagram

HX-Z1

• Pin function

Pin No. Function

1 APC amp input terminal.

2 APC amp output terminal.

3 Power supply.

4 RF amp negative input terminal.

5 RF amp output terminal.

6 AGC input terminal.

7 AGC loop filter capacitor connection terminal.

8 AGC output terminal.

9 Capacitor connection terminal for HPF-amp.

10 3TENV output terminal.

11 Capacitor connection terminal for RF enberope detection.

12 BDO output terminal.

13 Capacitor connection terminal for RF enverope detection.

14 OFTR output terminal.

15 NRDET output terminal.

16 Ground terminal.

Pin No. Function

17 VREF output terminal.

18 VDET output terminal.

19 VDET input terminal.

20 TE amp. output terminal.

21 TE amp. negative input terminal.

22 FE amp. negative input terminal.

23 FE amp. output terminal.

24 GCTL & APC terminal.

25 FBAL control terminal.

26 TBAL control terminal.

27 Tracking signal input terminal 1.

28 Tracking signal input terminal 2.

29 Focus signal input terminal 4.

30 Focus signal input terminal 3.

31 Focus signal input terminal 2.

32 Focus signal input terminal 1.

45

HX-Z1

5.13 AN7317 (IC32) : R / P amp.

• Pin layout & block diagram

11

12

13

14

7

8

9

10

15

16

• Pin functions

Pin No.

Function

1

2

Channel 1 playback amplifier input

Channel 1 playback amplifier negative feedback

5

6

3

4

Channel 1 playback amplifier output

Channel 1 record amplifier input

Channel 1 record amplifier output

ALC low-cut

ALC time

Ground

Vcc

Ripple filter

Record-Amplifier mute

Channel 2 record amplifier output

Channel 2 record amplifier input

Channel 2 playback amplifier output

Channel 2 playback amplifier negative feedback

Channel 2 playback amplifier input

46

5.14 BA15218F-XE (IC602,IC652) : Dual operation amplifier

• Pin layout

• Block diagram

HX-Z1

5.15 BA3126N (IC31) : R/P switc

47

HX-Z1

5.16 BU4094BCF-X (IC33) : Shift / Store registor

• Pin layout • Block diagram

48

5.17 BU9253AS (IC901) : LPF & Echo mixer

• Pin layout & Block diagram

• Pin function

Pin No. Symbol

1

2

GND

ECHO VR

5

6

3

4 BIAS

DAINT IN

DAINT OUT

7

8

DALPF IN

DALPF OUT

9 MIX OUT

10 MIX IN

11 ADLPF IN

12 ADLPF OUT

13 ADINT OUT

14 ADINT IN

15 VCC

16 NC2

17 MUTE

18 CR

I/O Descriptions

Connect GND

I Echo level control

Non connect

Analog part DC bias

I DA side integrator input

O DA side integrator output

I DA side LPF input

O DAside LPF output

O Mix AMP output for original tone& echo tone

I Mix AMP input pin for original tone

I AD side LPF input

O AD side LPF output

O AD side integrator output

I AD side integrator input

Power supply

Non connect

I Mute control signal input

CR pin for oscillator

HX-Z1

49

HX-Z1

5.18LA1838 (IC1): FM AM IF amp & Detector, FM MPX decoder

• Pin layout / Block Diagram

• Pin Function

PinNo. Symbol

1

2

3

4

5

6

7

8

9

10

11

FM IN

AM MIX

FM IF

AM IF

GND

TUNED

STEREO

VCC

FM DET

AM SD

FM VSM

I/O Function

I This is an input terminal of FM IF signal.

O This is an out put terminal for AM mixer.

I Bypass of FM IF

PinNo.

Symbol

16 L OUT

17

18

R OUT

L IN

I Input of AM IF Signal.

This is the device ground terminal.

O When the set is tunning,this terminal becomes "L".

O Stereo indicator output. Stereo "L",

Mono: "H"

This is the power supply terminal.

FM detect transformer.

This is a terminal of AM ceramic filter.

O Adjust FM SD sensitivity.

12

13

14

15

AM VSM

MUTE

FM/AM

MONO/ST

O Adjust AM SD sensitivity.

I/O When the signal of IF REQ of IC121(

LC72131) appear, the signal of FM/AM

IF output. //Muting control input.

I Change over the FM/AM input.

"H" :FM, "L" : AM

O Stereo : "H", Mono: "L"

19

20

21

22

23

24

25

26

27

28

29

30

R IN

RO

LO

MPX IN

I/O Function

O Left channel signal output.

O Right channel signal output.

I Input terminal of the Left channel post

AMP.

I

I Input terminal of the Right channel post AMP.

O Mpx Left channel signal output.

O Mpx Right channel signal output.

Mpx input terminal

FM OUT

AM DET

AM AGC

AFC

AM RF

REG

AM OSC

OSC BUFFER

O FM detection output.

O AM detection output.

I This is an AGC voltage input terminal for AM

This is an output terminal of voltage for FM-AFC.

I AM RF signal input.

O Register value between pin 26 and pin28 besides the frequency width of the input signal.

This is a terminal of AM Local oscillation circuit.

O AM Local oscillation Signal output.

50

HX-Z1

5.19 LA6541-X (IC801) : Servo driver

• Pin Layout & block diagram

19

20

21

22

15

16

17

18

23

24

11

12

13

14

7

8

9

10

• Pin function

PinNo.

Symbol

1

2

Vcc

Mute

5

6

3

4

Vin1

Vg1

Vo1

Vo2 Vo3

Vo3

Vo4

Vg2

Vin2

Reg Out

Reg In

Res

Cd

Vin3

Vg3

Vo5

Vo6

Vo7

Vo8

Vg4

Vin4

Vref

Vcc

Function

Power supply (Shorted to pin 24)

All BTL amplifier outputs ON/OFF

BTL AMP 1 input pin

BTL AMP 1 input pin (For gain adjustment)

BTL AMP 1 input pin (Non inverting side)

BTL AMP 1 input pin (Inverting side)

BTL AMP 2 input pin (Inverting side)

BTL AMP 2 input pin (Non inverting side)

BTL AMP 2 input pin (For gain adjustment)

BTL AMP 2 input pin

External transistor collector (PNP) connection. 5V power supply output

External transistor (PNP) base connection

Reset output

Reset output delay time setting (Capacitor connected externally)

BTL AMP 3 input pin

BTL AMP 3 input pin (For gain adjustment)

BTL AMP 3 output pin (Non inverting side)

BTL AMP 3 output pin (Inverting side)

BTL AMP 4 output pin (Inverting side)

BTL AMP 4 output pin (Non inverting side)

BTL AMP 4 output pin (For gain adjustment)

BTL AMP 4 output pin

Level shift circuit's reference voltage application

Power supply (Shorted to pin 1)

51

HX-Z1

5.20 LB1641 (IC851,IC852) : DC motor driver

• Pin layout

5.21 LC72136N (IC2) : PLL frequency synthesizer

• Pin layout

• Pin function

1

0

1

Input Output Mode

IN1 IN2 OUT1 OUT2

0 0 0 0 Brake

0

1

1

1

0

0

0

1

0

CLOCKWISE

COUNTER-CLOCKWISE

Brake

• Block diagram

• Pin function

PinNo.

Symbol I/O

1

2

3

XT

Function

I X'tal oscillator connect (75kHz)

FM/AM O LOW:FM mode

CE I When data output/input for 4pin(input) and

6pin(output): H

PinNo Symbol I/O

12 IFIN I

Function

IF counter signal input

13

14

IFCONT O IF signal output

Not use

4

5

6

7

10

11

8

9

DI

CLOCK

DO

FM/ST/

VCO

I Input for receive the serial data from controller

I Sync signal input use

O Data output for Controller

Output port

O "Low": MW mode

AM/FM O Open state after the power on reset

LW I/O Input/output port

MW

SDIN

I/O Input/output port

I/O Data input/output

19

20

21

22

15

16

17

18

AMIN

FMIN

VCC

PD

I AM Local OSC signal output

I FM Local OSC signal input

Power suplly(VDD=4.5-5.5V)

When power ON:Reset circuit move

O PLL charge pump output(H: Local OSC frequency Height than Reference frequency.

L: Low Agreement: Height impedance)

LPFIN I Input for active lowpassfilter of PLL

LPFOUT O Output for active lowpassfilter of PLL

GND

XT I

Connected to GND

X'tal oscillator(75KHz)

52

HX-Z1

5.22MN35510AL (IC561) : Digital servo & Digital signal processor

• Terminal Layout

• Pin function

34

35

36

37

30

31

32

33

38

39

40

22

23

24

18

19

20

21

12

13

14

15

8

9

10

11

16

17

PinNo.

symbol I/O

1 BCLK O Not used

2

3

LRCK

SRDATA

O Not used

O Not used

6

7

4

5

DVDD1

DVSS1

TX

MCLK

-

-

Function

Power supply (Digital)

Connected to GND

O Digital audio interface output

Micom command clock signal input

(Data is latched at signal's rising point)

MDATA

MLD

SQCK

SUBQ

I

I Micom command data input

I Micom command load signal input

SENSE O Sense signal output

FLOCK O Focus lock signal output Active :Low

TLOCK O Tracking lock signal output Active :Low

BLKCK O sub-code - block - clock signal output

Outside clock for sub-code Q resister input

O Sub-code Q -code output

DMUTE Connected to GND

STATUS O Status signal

(CRC,CUE,CLVS,TTSTOP,ECLV,SQOK)

25

26

27

28

29

RST

SMCK

PMCK

TRV

TVD

PC

ECM

ECS

I

-

-

Reset signal input (L:Reset)

Not used

Not used

O Traverse enforced output

O Traverse drive output

Not used

O Spindle motor drive signal (Enforced mode output) 3-State

O Spindle motor drive signal (Servo error signal output)

O Kick pulse output

O Tracking drive output

KICK

TRD

FOD

VREF

FBAL

TBAL

FE

TE

O Focus drive output

O Reference voltage input pin for D/A output block (TVD,FOD,FBA,TBAL)

O Focus Balance adjust signal output

O Tracking Balance adjust signal output

I

I

Focus error signal input(Analog input)

Tracking error signal input(Analog input)

RF ENV I RF envelope signal input(Analog input)

VDET I Vibration detect signal input(H:detect)

OFT

TRCRS I

I Off track signal input(H:off track)

Track cross signal input

RFDET

BDO

LDON

I RF detect signal input(L:detect)

I BDO input pin(L:detect)

I Laser ON signal output(H:on)

PinNo.

symbol I/O

41 TES I

Function

Tracking error shunt signal output(H:shunt)

42

43

PLAY

WVEL

O Not used

O Not used

44

45

46

47

ARF

IREF

DRF

DSLF

I

I

-

-

RF signal input

Reference current input pin

Bias pin for DSL

Loop filter pin for DSL

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

PLLF I Loop filter pin for PLL

VCOF I/O Not used

AVDD2 I/O Power supply(Analog)

AVSS2 Connected to GND(Analog)

EFM

PCK

PDO

SUBC

SBCK

VSS

XI

X2

VDD

BYTCK

CLDCK

FLAG

-

-

Not used

Not used

IPPLAG Not used

FLAG

CLVS

CRC

DEMPH

RESY

IOSEL

TEST

AVDD1

OUT L

AVSS1

-

-

-

-

-

-

-

-

-

-

Not used

Not used

Not used

Not used

Not used

Connected to GND(for X'tal oscillation circuit)

Input of 16.9344MHz X'tal oscillation circuit

I Output of X'tal oscillation circuit

O Power supply(for X'tal oscillation circuit)

Not used

Not used

Not used

Not used

Not used

Not used

OUT R O Rch audio output

RSEL

CSEL

PSEL

MSEL

SSEL

pull up

pull up

Power supply(Digital)

O Lch audio output

Connected to GND

-

pull up

Connected to GND

Connected to GND

Connected to GND

Pull up

5.23 NJM4580L (IC902) : Dual operational amplifier

53

HX-Z1

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION

PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.21111)

2002/08