JVC HX-Z1 Service Manual

SERVICE MANUAL

COMPACT COMPONENT SYSTEM

HX-Z1

SO

UND MODE

PRESET

VO

LUM

E

COMPACT

DIGITAL AUDIO

Area Suffix

J ------------------------- U.S.A.

C ----------------------- Canada

Contents

Safety precautions

Preventing static electricity

Important for laser products

Importance administering

point on the safety

Disassembly method

1-2

1-3

1-4

1-5

1-6

Adjustment method

Flow of functional operation

until TOC read (CD)

Maintenance of laser pickup

Replacement of laser pickup

Description of major ICs

1-24

1-29

1-30

1-30

1-31~41

No.21088

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

HX-Z1

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 manufacturer`s 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 re-assembling.

5. Leakage currnet check (Electrical shock hazard testing)

After re-assembling 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 10W resistor paralleled by a 0.15 F 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,

AC VOLTMETER

(Having 1000 ohms/volts, or more sensitivity) particularly any exposed metal part having a return path to the chassis, and meausre 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.).

0.15 F AC TYPE

1500 10W

Place this probe on each exposed metal part.

Good earth ground

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.

!

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.

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.

(This regulation does not correspond to J and C version.)

1-2

HX-Z1

Preventing static electricity

1. Grounding to prevent damage by 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.

2. About the earth processing for the destruction prevention by static electricity

In the equipment which uses optical pick-up (laser diode), optical pick-up is destroyed by the static electricity of the work environment.

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

2-1 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.

2-2 Ground yourself

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

(caption)

Anti-static wrist strap

Conductive material

(conductive sheet) or iron plate

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.

4. 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. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it

Attention when traverse unit is decomposed

*Please refer to "Disassembly method" in the text for pick-up and how to

detach the CD traverse mechanism.

CD changer mechanism assembly

1. Remove the disk stopper and T. bracket on the CD changer mechanism

assembly.

2. Disconnect the harness from connector on the CD motor board.

3. CD traverse unit is put up as shown in Fig.1.

4. Solder is put up before the card wire is removed from connector CN601

on the CD servo control board as shown in Fig. 2.

(When the wire is removed without putting up solder, the CD pick-up

assembly might destroy.)

5. Please remove solder after connecting the card wire with CN601 when

you install picking up in the substrate.

CD traverse

unit

Flexible cable

Fig.1

Soldering

Fig.2

1-3

HX-Z1

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 laserradiation and is equipped with safety switches whichprevent 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 an adjustment or operation check.

VARNING : Osynlig laserstrålning är denna del är öppnad och spårren är urkopplad. Betrakta ej strålen.

VARO : Avattaessa ja suojalukitus ohitettaessa olet alttiina näkymättömälle lasersäteilylle.Älä katso säteeseen.

ADVARSEL : Usynlig laserstråling ved åbning , når sikkerhedsafbrydere er ude af funktion. Undgå udsættelse for stråling.

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

REPRODUCTION AND POSITION OF LABELS

WARNING LABEL

CLASS 1

LASER PRODUCT

1-4

Importance administering point on the safety

HX-Z1

Caution: For continued protection against risk of fire, replace only with same type 2.5A/125V for

F103, 5A/125V for F001 and 6A/125V for F101, F102.

This symbolspecifies type of fast operating fuse.

Precaution: Pour evitisques de fer reux, remplacez le fusible de surete de F103 comme le meme type que 2.5A/125V, et 5A/125V pour F001 et 6A/125V pour F101, F102.

^

Ce sont des fusibles suretes qui functionnes rapide.

1-5

HX-Z1

Disassembly method

<Main board>

Removing the metal cover

(See Fig.1 ~ 3)

1.

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

2.

Remove the screw B on each side of the body.

3.

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.

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.


Front panel assembly Rear part

B

A

A

Metal cover

Fig.1

Metal cover

A

Fig.2

Metal cover

Fig.3

B

C


C

C

1-6

CD servo control board

CN651

Fig.4

Fig.5

HX-Z1

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.

Front panel assembly

Joint a

Bridge board

CN701

Main board

CN870

D

Fig.6

Primary board

CN231, CN232


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.

Inner bar

Bottom chassis

Fig.7

Joint a

Plastic rivet


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

Band

Primary board

CN231, CN232

Bridge board

CN701

Fig.8


E

Fig.9

1-7

HX-Z1

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.

Antenna board

CN1

Rear panel

Band

Fig.10

Rear panel

F

Fig.11

1-8

HX-Z1

Removing the rear panel

(See Fig.12 ~ 17)

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

Joint b

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.

Fan assembly

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.

Holding board

REFERENCE: Fan assembly will come off with rear panel.

Tie band

Inner bar

Holding board

Fig.12

Plastic Rivets

Fig.13

CN206

CN206

Rear panel

Fig.14

Rear panel

Rear panel

Joint c

Fig.16

F

F

F

Fig.17

Joint c

F

Fig.15

1-9

HX-Z1

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 ).

Rear panel

Fig.18

Joint d

Fan assembly

Joint d

Fig.19

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.


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.

Main board

CN870

CN44

CN217

D

CN311

Joint e

Fig.20

G

1-10

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.

Inner bar

Inner bar

Plastic rivet

Bridge board

Fig.21

H

Joint f

Plastic rivet

HX-Z1

Joint g

Fig.22

CN212, CN213

Primary board

CN214

Plastic rivets

Holding board

Bridge board

CN701

Band

Primary board

CN214

Fig.24

CN212, CN213

Bridge board

Fig.23

Bridge board

I

Regulator board

Fig.25

Heat sink

I

Heat sink bracket

1-11

HX-Z1

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.

Bridge board

Regulator board

Heat sink bracket

Fig.26

J

Heat sink bracket

Regulator board

Heat sink

K

Heat sink

M L

Fig.27

CN205

CN215

Bridge board

1-12

HX-Z1

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.

Power transformer assembly

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.

N

Fig.28

Primary board

Primary board

CN231, CN232

Power transformer assembly

CN250

Band

O

<Front panel assembly>

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

O

Fig.29

Cord stopper

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.

Head amplifier & mechanism control board

CN33

P

Q

Removing the headphone board

(See Fig.30)

1.

Remove the screw Q attaching the wire extending from the headphone board.

Cassette mechanism assembly

Fig.30

Q R

Headphone board

2.

Remove the screw R and pull out the headphone board backward.

1-13

HX-Z1

Removing the display system control board (See Fig.31, 32)

1.

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

2.


CN880 on the display system control board.

Stay bracket (1)

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

S

Display system

control board

CN43

Fig.31

CN880

T

Display system control board

T

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.

T

T

CN43

Front panel

T

Fig.32

CN880

T

Sound mode knob

Volume knob

Preset knob

Fig.33

Stay bracket (2)

U V V

Bottom board

Fig.34

U

Bottom board

Fig.35

V

1-14

A

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. a

CN854

CN651

CD servo control board

CN801

CN652

CN151

A a

Removing the CD tray 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).

T.Braket

Disc stopper

C a

B

B'

C

Lod stopper

(C/J version only)

C

D b b

A

CN601

Fig.1

Rod

T.Braket

Fig.2

A

Earth wire

Clamper base d c

Return spring

E

Lock lever

Fig.4

Clamper ass'y

Fig.3

HX-Z1

1-15

HX-Z1

11.

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.

12.

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.

13.

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).

14.

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

(See Fig.6).

15.

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.

Chassis assembly f

CD tray assembly

Refer to Fig.7

Pawl g

Fig.6

CD

3

CD

2

CD

1

1-16

Pulley gear

Motor pulley

Fig.8

Fig.5

Stopper e

CD tray assembly

Fig.7

Drive unit of elevator

CD tray assembly

Fig.9

g g '

HX-Z1

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.

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

Cam R1, R2 assembly

Arrow h i

F

F

Cams R1, R2 assembly

F

F

CD loading mechanism assembly

Fig.10

CD traverse mechanism

Arrow k j

Lifter unit

Arrow l

Fig.11

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

Fig.12

CD Pickup unit o

Shaft

Stopper p

Shaft n m

CD loading mechanism

Shaft

Cam gear

Fig.13

Stopper

1-17

HX-Z1

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.

Chassis assembly

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).

Drive unit r

Tray select switch board

CN854

CN851

Fig.14

Cam gear q

CN804

G

Drive unit

Cylinder gear

Fig.15

Cam gear q

H Cams R1, R2 assembly

Cam unit

H s

J

Fig.16

Select lever

Fig.17

1-18

HX-Z1

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.

Chassis assembly u

Gear bracket v

Gear bracket

Pulley gear

Belt

Motor pulley

I

Pulley gear Belt

Motor pulley

I

Fig.18

Actuator motor

Pawl t v

Fig.19

Assembly and Configuration Diagram

Pulley gear

Pulley gear

Gear B

Fig.20

Cylinder gear

Gear B

Gear C

Select gear

Gross gear L

Gross gear U

Gear C

Fig.21

1-19

HX-Z1

Removing the cams R1/R2 assembly

and 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.

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. 24).

Slit washer

Cam gear q

Slit washer

Cam R2

J

Pawl

Cam R1 w Pawl w

Cam switch board

C.G. base assembly

Cam gear q

Notch

Pawl x

Cylinder gear

Drive unit

Fig.22

Cam R1, R2 assembly

Gear unit

Fig.23

Gear bracket

1-20

HX-Z1

<Cassette mechanism section>

Cassette mechanism

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).

Flywheel (R)

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.

Head mount

Fig. 1

Trigger arm

4.

Remove the flexible P.C. board from the chassis base.

Flexible board

5.

Remove the spring a from behind the playback / recording & eraser head.

Playback / recording & eraser head

Spring a

Trigger arm

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.

CN31

Head amplifier & mechanism control P.C. board

Fig. 2

Flywheel (R)

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.

Playback / recording & eraser head

Spring 1

2.

Fix the reversing azimuth screw.

Reversing azimuth screw

Head mount

3.

Set the spring 1 from behind the playback / recording

& eraser head.

Flexible board

4.

Attach the flexible P.C. board to the chassis base, as shown in Fig. 3.

5.

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

Head amplifier & mechanism control

P.C. board

Fig. 3

1-21

HX-Z1

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

1.

Remove the cassette mechanism assembly.

A A

Belt

CN32 Main motor assembly

2.

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

B

3.

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

CN31

4.

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

Head amplifier & mechanism control board

A

4pin parallel wire

B

Flexible board

Main motor assembly

Fig. 4

Removing the main motor assembly

(See Fig.4 ~ 6)

Main motor assembly

1.

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

Capstan belt

2.

While raising the main motor, remove the capstan belt from the motor pulley (See Fig. 4a).

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. 5 and 6.

Motor pulley

Fig. 4a

Mechanism motor assembly

Main motor assembly

Flywheel

Capstan belt

Motor pulley

Fig. 5

Capstan belt

Fig. 6

Motor pulley

1-22

HX-Z1

Removing the flywheel (See Fig. 7, 8)

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.

Flywheel (R) Flywheel (L)

Capstan shaft (R) Capstan shaft (L)

Slit washer

Slit washer

Flywheel R

Fig. 8

Flywheel L

Fig. 7

Removing the reel pulse P.C. board and solenoid (See Fig. 9)

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. a b c d e f g

Solenoid

Reel pulse board

Fig. 9

1-23

HX-Z1

Adjustment method

Measurement Instruments Required for

Adjustment

1. Low frequency oscillator

This oscillator should have a capacity to output

0dBs to 600 at an oscillation frequency of

50Hz-20kHz.

2. Attenuator impedance : 600

3. Electronic voltmeter

4. Distortion meter

5. Frequency counter

6. Wow & flutter meter

7. Test tape

VTT703L : Head azimuth

VT712 : Tape speed and running unevenness

(3kHz)

VT724 : Reference level (1kHz)

8. Blank tape

TYPE

TYPE

: AC-225

: AC-514

9. Torque gauge : For play and back tension

FWD(TW2111A), REV(TW2121a) and

FF/REW(TW2231A)

10. Test disc: CTS-1000

Measurement conditions

Power supply voltage

AC120V (60Hz) : Ver.J,C

Reference output : Speaker : 0.775V/4

: Headphone : 0.077V/32

Reference frequency and

input level ------------------------------ 1kHz, AUX : -8dBs

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

Load resistance --------------------------- 4

Radio Input signal

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

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

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

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

Tuner section

FM Band cover: 87.5

108MHz

MW Band cover: 522 1,629kHz

LW Band cover: 144 288kHz

Voltage applied to tuner +B : DC5.7V

VT : DC 12V

Reference measurement

output 26.1mV(0.28V)/3

Input positions AM : Standard loop antenna

FM : TP1 (hot) and TP2 (GND)

Standard measurement position of volume

Function switch to Tape

Beat cut switch to Cut

Super Bass/Active hyper Bass to OFF

Bass Treble to Center

Adjustment of main volume to reference output

VOL : 28

Precautions for measurement

1. Apply 30pF and 33k to the IF sweeper output

side and 0.082

F and 100k 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 in

both 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).

1-24

<<

Arrangement of Adjusting Position

>>

Cassette mechanism section Cassette mechanism section (Back side)

Head azimuth adjusting screw

(Forward side)


(Reverse side)

HX-Z1


(Forward side)


(Reverse side)

Playback/Recording & eraser head

Cassette AMP board

MOTOR SPEED

VR37

1

CN34

C307

10

1

B152

9

B102

1

C375

R371

10

CN32

Q375

E

C376

B

R375

Q372 R372

R373

D375

E Q371

Q376

B

L301

B198 C113

R110

R109

R112

R111

R212

R211

C211

C213

R210

R209

R205

R105

C105

Q302

C314

R353

B155

R327

C319

C316

C121

B156

C108

C306

B158 C208

C305

R208

B160

C304

C206

C106

R102 C104

C107 C207

R122

C102 C101

R115 C110

B163 R101

9

B108

R107 C109

C201

B109

C209 R207

R305

R221

B164

6

R121

C301

1

B110

CN31

C202

R201

C210

1IC31

R345 Q331

R215

R339

C334

R222 Q203

C331

16

1

B162

9

8

IC33

BIAS ADJ

VR31

1-25

HX-Z1

Tape Recorder Section

Items

Measurement

conditions

Measurement method

Confirmation of head angle

Test tape

: VTT703L (8kHz)

Measurement output terminal

: Speaker terminal

Speaker R

(Load resistance: 4 )

: Headphone terminal

1 Playback the test tape VTT703L (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.

Standard

Values

Maximum output

Adjusting

positions

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

Confirmation of tape speed

Test tape

: VT712 (3kHz)



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

Reference Values for Confirmation Items

Items

Measurement

conditions


Standard

Values

Adjusting

positions

Difference between the forward and reverse speed

Test tape

: VT712 (3kHz)


: Speaker terminal

Speaker R

(Load resistance: 4 )


: 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)



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)

1-26

HX-Z1

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 and AC-225 to

TYPE


: Both recording and headphone terminals

Adjustment of recording and playback frequency

Reference frequency

: 1kHz and 10kHz

(REF.: -20dB)

Test tape characteristics : AC-514 to TYPE

Measurement input terminal

: OSC IN


1 With the recording and playback

mechanism, load the test tapes (AC-514 to

TYPE and AC-225 to TYPE ), and set

the mechanism to the recording and

pausing condition in advance.

2 After connecting 100 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 4.0

A (TYPE

) and 4.20

A (TYPE ).

Standard

Values

AC-225

: 4.20 A

AC-514

: 4.0 A

Adjusting

positions

VR31

1 With the recording and playback Output

mechanism, load the test tapes (AC-514 to deviation

TYPE ), and set the mechanism to the between

recording and pausing condition in 1kHz and

advance.

10kHz

2 While repetitively inputting the reference : -1dB 2dB

frequency signal of 1kHz and 10kHz from

OSC IN, record and playback the rape.

3 While recording and playback the test tape

in TYPE , adjust VR31 for Lch and VR32

for Rch so that the output deviation

between 1kHz and 10kHz becomes

-1dB 2dB.

VR31

Reference Values for Electrical Function Confirmation Items

Items

Recording bias frequency

Eraser current

(Reference value)

Measurement

conditions

Forward or reverse

Test tape

: TYPE (AC-514)

Measurement terminal : BIAS TP on

P.C. board


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 ), 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.

Standard

Values

100 kHz

6 kHz

Forward or reverse

Recording mode

Test tape

: AC-514 to TYPE and AC-225 to

TYPE

Measurement terminal : Both of the eraser head terminals

1 While recording and playback mechanism,

load the test tapes (AC-514 to TYPE

and AC-225 to TYPE ), 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

: 120 mA

TYPE

: 75 mA

Adjusting

positions

1-27

HX-Z1

Extension code connecting method

CD servo

control board

CN651

Main board

CN661

1-28

HX-Z1

Flow of functional operation until TOC read

Power ON Play Key

Slider turns REST

SW ON.

Check Point

Confirm that the voltage at the pin5 of CN801 is "H"\"L"\"H".

Automatic tuning of TE offset

Laser ON

Check that the voltage at the pin40 of IC651 is + 5V?

Tracking error waveform at TOC reading

Approx.3sec

pin 25 of

IC601(TE)

VREF

Approx

1.8V

Disc states to rotate

Tracking servo off states automatic tuning of

TE balance

Tracking servo on states

Disc to be braked to stop

TOC reading

finishes

Automatic measurement of TE amplitude and

500mv/div

2ms/div Fig.1

Detection of disc

Automatic tuning of

Focus offset

Automatic measurement of

Focus S-curve amplitude

Disc is rotated

Focus servo ON

(Tracking servo ON)

Automatic measurement of

Tracking error amplitude

Automatic tuning of

Tracking error balance

Confirm that the Focus error

S-cuve signal at the pin28 of

IC651 is approx.2Vp-p

Confirm that the signal from pin24 IC651 is 0V as a accelerated pulse during approx.400ms.

Confirm the waveform of the Tracking error signal.

at the pin 25 of IC601 (R604)

(See fig-1)

Automatic tuning of

Focus error balance

Automatic tuning of

Focus error gain

Automatic tuning of

Tracking error gain

TOC reading

Play a disc

Confirm the eys-pattern at the lead of TP1

1-29

HX-Z1

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.

1. The level of RF output (EFM output : ampli

tude of eye pattern) will below.

Is the level of

RFOUT under

1.25V 0.22Vp-p?

NO

Replace it.

Replacement of laser pickup

Turn off the power switch and, disconnect the power cord from the ac outlet.

Replace the pickup with a normal one.(Refer to "Pickup Removal" on the previous page)

Plug the power cord in, and turn the power on.

At this time, check that the laser emits for about 3seconds and the objective lens moves up and down.

Note: Do not observe the laser beam directly.

YES

O.K

Play a disc.

Check the eye-pattern at TP1.

Finish.

(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.

1-30

Description of major ICs

BU2092 (IC642) : Port expander

1.Pin Layout

Vss 1

DATA

2

CLOCK 3

LCK

4

Q0

5

Q1

6

Q2 7

Q3 8

Q4

9

CONTROL

CIRCUIT

2.Pin function

Pin No.

Symbol

1 Vss

2

3

DATA

CLOCK

4

5~16

LCK

Q0~Q11

I

I

I/O

-

I

O

Function

Connect to GND

Serial Data input

Shift Clock of Data

Latch Clock of Data

Parallel Data Output

Latch Data L H

OUTPUT ON OFF

17

18

OE

Vdd -

I Output Enable

Power Supply

18 Vdd

17

OE

16 Q11

15

Q10

14

Q9

13 Q8

12 Q7

11

Q6

10 Q5

HX-Z1

1-31

HX-Z1

BH3874AKS (IC434) : Audio sound processor

1. Pin layout

48 ~ 33

49

~

64

32

~

17

1 ~ 16

2. Block diagram

INLD 47

INLC 45

INLB 43

INLA 41

-9dB

INRA 42

INRB 44

INRC 46

INRD 48

-9dB

RECR 52

53 55 56 51 61 62 59 60 57 58 63 64 3 4 7 8 11 12 15

-30dB~-

17 18 19 23 24 25 26

Vcc

1

2

Vcc

HPP

0~30dB

11dB

+

+

-

+

+

-

+

-

19dB

10K

+

+

L-R

-

+

+

+

L+R

10K

11dB

+

-

+

+

+

+

-

10.5Hz

DET

10.5Hz

DET

10.5Hz

DET

10.5Hz

10.5Hz

DET

DET

+

+

+

-

+

+

MPX

5 BAND EQ

5 BAND EQ

+ VCA FILTER

HPP

ALC

+ +

-

+ +

-

30 VCC

-

+

28 FILTER

54 GND

32 OUTL

27 BASS5

29 CAP

31 OUTR

35 SCK

DIGITAL

CONTROL

34 SI

33 STEPC

40

22K

36 37 38 39 1 2 5 6 9 10 13 14 16 20 21 22 50 49

1-32

HX-Z1

3. Pin function

Pin NO.

Name

1 F1R1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

F1R2

F2L1

F2L2

F2R1

F2R2

F3L1

FAL2

F3R1

F3R2

F4L1

F4L2

F4R1

F4R2

F5L

F5R

HPFL1

HPFL2

HPFL3

HPFR1

HPFR2

HPFR3

BASS1

BASS2

BASS3

BASS4

BASS5

FILTER

CAP

VCC

OUTR

OUTL

33 STEPC

Function

Rch GREQ f1 filter setting pin


Lch GREQ f2 filter setting pin














Lch high-pass filter setting pin



Rch high-pass 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

INLD

INRD

ALCC

ALCR

RECL

REOR

VFC1

GND

VFC2

MIC

DPLL1

DPLL2

DPLR1

DPLR2

PS1

PS2

F1L1

F1L2

Name

SI

SCK

A

B

C

BPOUT

BPNF

INLA

INRA

INLB

INRB

INLC

INRC

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.

34

35

36

37

38

39

Function

Serial data larch receiving pin

Serial clook receiving pin

Parallel data receiving pin



Output pin for spectrum analyzer

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

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



1-33

HX-Z1

KIA7805API (IC360) : Regulator

1. Pin layout

1.VCC

2.GND

3.OUTPUT

1 2 3

2.Block diagram

1 INPUT

Q11

Z1

Q12

Q17

Q14

Q13

Q2

Q18

Q1

Q6

C1

Q7

Q3

Q4

Q5 Q9

Q19

Q11-1

Q15

R14

Q16

Q8

Q10

3 OUTPUT

2 COMMON (GND)

1-34


1. Pin layout

1.VCC

2.GND

3.OUTPUT

1 2 3

2.Block diagram

1 INPUT

Q11

Z1

Q12

Q14

Q17

Q13

Q2

Q18

Q1

Q6

C1

Q7

Q3

Q4

Q5 Q9

Q19

Q11-1

Q15

R14

Q16

Q8

Q10

3 OUTPUT

2 COMMON (GND)

HX-Z1

1-35

HX-Z1


1. Pin layout

1.VCC

2.GND

3.OUTPUT

1 2 3

2.Block diagram

1 INPUT

Q11

Z1

Q12

Q14

Q17

Q13

Q2

Q18

Q1

Q6

C1

Q3

Q4

Q5 Q9

Q7

Q19

Q11-1

Q15

R14

Q16

Q8

Q10

3 OUTPUT

2 COMMON (GND)

1-36

KIA7042AP-T (IC830) : Regulator

1. Pin layout 2. Block diagram

1 2 3

1.VCC

2.GND

3.OUT

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

1. Pin layout

A OUT 1 8 V+

A -IN 2

7 B OUT

A B

A +IN 3 6 B -IN

V 4 5 B +IN

(TOP VIEW)

2. Block diagram

V

+

INPUT

+

V

-

OUTPUT

HX-Z1

1-37

HX-Z1

GP1U271XK (IC951) : Receiver for remote

+

–

Amp.

Limiter

B.P.F

Demodulator

Integrator Comparator

GND VCC Vout

STK402-050 (IC602) : 2ch AF power amp.

1.

Pin layout

1 ~ 15

2.Block diagra

4

R1

1

2

TR1

TR3

R2

TR2

D1

TR7

TR4

R6

C1

R3

R4

TR5

R5

TR6

TR8

R7

1-38

SUB

13 5 12 7 6 10 11

TR9

TR1E

R8

C2

TR10

TR12

R11

R12

TR13

R10

R9

R14 R15

TR16

R14

R13

14 15

8

9

HX-Z1

STK402-010 (IC701) : 2ch AF power amp.

1.Pin

layout

1 ~ 18

2.Block diagra

TR1

D2

TR2

R3

TR6

14

TR3

15

R1 C1

TR4

C2

R4

R5

16

TR5

R2

D1

R6

TR7

R7

TR9

TR8

TR10

13 18 17

TR41

R41

1

TR19

TR18

TR20

R13 D12

TR12 TR11

TR16

C12

R14

C11 R11

TR14 TR13

R15

R16

TR17

R17

TR15

R12

Comparator

D42

D43

D41

D51

TR51

Comparator

R51

SUB

D53

D52

3

2

7

5

4

6

12 9 8 11 10

1-39

HX-Z1

UPD784975AGF303 (IC810) : Main micon

1. Pin layout

100 ~ 81

1 80

~ ~

30

31 ~ 50

51

2. Pin function

X1

X2

VDD1

IC(VPP)

VC3RESET

MSTAT

KCMND

RDS DATA

RDS CK

BUZZER

REMIN

SMUTE

SLCCE

CK

DATA OUT

DATA IN

SM-

SM+

ECHO1

ECHO2

Name

AVDD

SPIDTI

MSI

MPX

H/P

KEY1

KEY2

KEY3

VOL-

VOL+

SLCPLAY

SLCKEY

PHOTO A

AVSS

VSS1

27

28

29

30

23

24

25

26

31

32

33

34

35

19

20

21

22

15

16

17

18

11

12

13

14

7

8

9

10

Pin NO.

1

2

5

6

3

4

INT

I/O

INT

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

-

-

-

I

-

-

I

I

I

I

I

I

I

I

I

I

I/O

-

I

I

Function

AD VDD, same as VDD1

SPI analog input

Music scan input

Tuner stereo indicator

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

Key 1 input

Key 2 input

Key 3 input

Volume decrease

Volume increase

SLC detect play

SLC key input

SLC photo A

AD VDD, same as VSS1

GND

Oscillation

Oscillation

Connect to VSS1

VC3 reset

VC3 status input

VC3 KCMND(serial data)

RDS data

RDS clock

Buzzer on

Remocon input

System mute

SLC chip enable

SLC / tuner clock

SLC / tuner data out

Tuner data in

Soundmode reverse

Soundmode forward

Echo 1 data

Echo 2 data

58

59

60

61

62~78

79

80

81~84

85~100

54

55

56

57

50

51

52

53

46

47

48

49

42

43

44

45

Pin NO.

36

37

38

39

40

41

Name

SPI A

SPI B

SPI C

PBMUTE

VSS0

VDD0

RESET

INH

LATCH

VOLCK

VOLDA

RELAY

POUT

ECON

PRT

AUXMUTE

TUCE

EXTDA

EXTCK

EXTCE

OEEXT

VOLLED

FSEARCH

RSEARCH

S21~S5

VDD2

VLOAD

S4~S1

G16~G1

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

O

O

O

O

O

O

O

O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

I/O

-

I

-

I/O

I/O

I/O

I/O

Function

SPI A data

SPI B data

SPI C data

Playback mute

Micom reset

Back-up mode detect

Latch for vol IC

Volume clock

Volume data

Relay out

Power on

Ecology mode

Protector in

Auxmute

Tuner chip enable

Available pin

Available pin

External IC data

External IC clock

External IC strobe

Output enable for external IC

Volume led

Forward skip

Reverse skip

FL segment

Negative power supply(-30V)

FL segment

FL display grid

1-40

KIA7809API (IC305) :

Regulator

1.Pin layout

1.INPUT

2.COMMON

3.OUTPUT

1 2 3

2.Block diagram

1 INPUT

Q11

Z1

Q12

Q14

Q17

Q13

Q2

Q18

Q1

Q6

C1

Q7

Q3

Q4

Q5 Q9

Q19

Q11-1

Q15

R14

Q16

Q8

Q10

3 OUTPUT

2 COMMON (GND)

HX-Z1

1-41

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMUNICATION BUSINESS DIVISION

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

Printed in Japan

200206

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