AIWA AD-F660 H,HU,U,C,E,K,G,Z cassette deck SERVICE MANUAL

AIWA pate or ENS ra
SERVICE MANUAL
MODEL NO.
STEREO CASSETTE DECK =F 585650
TYPE.
H,HU,U,C,E,K,G,Z
SPECIFICATIONS
Semiconductors: 17 1Cs, 78 transistors, (WTD-A) More than 62/68 dB
29 diodes, 46 LED's (METAL, DOLBY NR B-type/C-type)
Power supply: H, HU models H, HU, U, C, E, K, G models
AC 120V/220V/240V More than 62/68 dB
switchable 50/60 Hz (CrO,, DOLBY NR B-type/C-type)
U, C models Z model
AC 120V, 60 Hz More than 56/52 dB
E, Z models (CrO,, DOLBY NR B-type/C-type)
AC 220V, 50/60 Hz More than 60/66 dB
K, G models (LH, DOLBY NR B-type/C-type)
AC 240V, 50/60 Hz Channel separation: More than 30 dB
Power consumption: 26W (1 kHz, OVU)
Dimensions: 420(W) x 110(H) x 280(D) mm Cross talk: More than 60 dB
[16—1/2' x 4-3/8" x 11-1/4"’] (1 kHz, OVU)
Weight: 5.5 kg (12.11 Ibs.) Erasing ratio: More than 60 dB
Track type: 4 tracks 2 channel (125 Hz, OVU + 10dB, METAL)
Tape speed: 4.8cm/s (1-7/8 ips) Level drift: + 0.5 dB
Wow an flutter: Less than 0.028% (WRMS) (10kHz)
According to DIN 45500 0.09% Level indication error: + 1.5 dB
Automatic stop system: Full auto stop (400 Hz, 0 dB)
Automatic shut-off action time: ADMS time: 2.0 + 0.5s. (POWER ON)
3 + 1s. (ADMS LED light up time)
Pinch roller pressure: T side: 350 + 30 g (3.43 + 0.29N) Bias frequency: 85 kHz
S side: 165 + 15 g (1.61 + 0.15N) Frequency response: METAL 20 ~ 20,000 Hz
Take-up torque: 38 + 10 g-em (0.37 + o NE CrO, 20 ~ 19,000 Hz
+40 +0. LH 20 ~ 18,000 Hz
FF & rewind torque: 150 _ 29 9-cm (1.47 _ 0'529 MN m) DOLBY-NR Effect: More than 8 dB
FF & rewind time: 60 + 10s. (C-60) (10kHz, CCIR FILTER) (DOLBY NR B-type)
Counter indication error: 0 + 3(C-60) More than 16 dB
Cassette lid action time: 0.8 #0.4s. (at normal temperature) (DOLBY NR C-type)
Playback output: 540 + 30MV Motor: DC Servomotor for capstan
(TTA-161) DC motor for reels
Playback noise: Less than 1.3mV Head: DX Combination head (for Rec/Pb)
(CrO, DOLBY NR B ON) Inputs: MIC maximum input sensitivity:
Less than 2.0mV | 0.3 mV (2002 — 10k9? matched)
(METAL DOLBY NR OFF) LINE IN maximum input
Less than 2.7mV sensitivity: 50mV (more than 50k(2)
(LH DOLBY NR OFF) Outputs: LINE OUT standard output level:
Rec./Pb output: 380 + 30mV 0.41 V (0VU); suitable load
(1kHz, OVU) impedance: more than 50k92;
Rec./Pb distortion: H, HU, U, C, E, K, G mode:s Headphones: 8Q2
Less than 1.5% (METAL) Test tape: METAL TTA-119MX
Less than 1.5% (CrO,) LH TTA-119J
Less than 1.5% (LH) H, HU, U, C, E, K, G models
Z model CrO, TTA-119G
Less than 2.5% (CrO,) Z model
Rec./Pb SN ratio: More than 51/54 dB | CrO, TTA-119D
(Unweighted) (METAL, DOLBY NR B-type Co TTA-119G
OFF/ON)
H, HU, U, C, E, K, G models
More than 51/54 dB e Specifications and external appearance are subject to
(CrO,, DOLBY NR B-type OFF/ON) change without due to product improvement.
Z model e Noise reduction system manufactured under license from
More than 44/48 dB Dolby Laboratories Licensing Corporation.
(CrO,, DOLBY NR OFF/ON) e Dolby and the OO symbol are trademarks of Dolby labo-
More than 49/52 ratories Licensing Corporation.
(LH, DOLBY NR B-type OFF/ON) e HX professional originated by BANG & OLFSEN.
eee
AD-F660 eye | — = AIWA
DESCRIPTION
“0000” REPLAY /STOP indicator e— — - - —= TAPE LENGTH indicator
+ Digital counter
MEMORY REWIND indicator e
+ Peak program meter
TIMER switch e
-* MONITOR switch
EJECT button *—
DOLBY NR ON/OFF switch
POWER switch —
DOLBY B.C NR switch
HEADPHONE jack (PHONES)
REC BALANCE control knob
(Knob (82-184-034-01)]
Cassette holder |
|
BIAS FINE NORMAL /CrO: control knob
ADMS indicator e (Knob (82-184-034-01))
INTRO PLAY /MS indicator ® —e Tape position indicator
TA PE/SOURCE indicator e —e DOLBY B.C NR indicator
REC MUTE button “0000” reset switch 1
PAUSE button REPLAY /STOP switch
PLAY button MEMORY REWIND switch
8
STOP button COUNTER /TAPE TIME switch
REW REVIEW /MS button RECORD LEVEL control knob
FFWD CUE/MS button TAPE LENGTH switch
RECORD button MUSIC SENSOR switch
Yue _ | AD-F660 HU
| AIWA * | EKGZ
DISASSEMBLING INSTRUCTIONS
1. Removing Cassette Lid 3. Removing Mechanism
1) Open the cassette lid, pull it up in the direction of the arrow. 1) Remove the 4 serews. (See Figure-4)
(See Figure-1)
Te PIENSE Tr
+
+
AD-F660 H-HUY | : AIWA |
4. Removing Reel Motor
1) Remove the 2 screws to dismount the cassette holder. 2) Remove the 2 scres pushing the lever for bralce release in
{See Figure-7) the direction of the arrow. (See Figure-8)
Brake lever eject
Holder, Cassette
Fig. 4
2) Remove the power button and screw to take out the circuit
2. Removing Front Panel
board. (See Figure-5)
1} Remove the 6 screws. (See Figure-2) |
SWITCH 2 C.B
Fig. 2 | Fig. 5
3) Draw out the mechanism backwards while holding the Eject
button by figers. In this case, make confirm that the cassette
hoider is in a lock condition.
4) Disconnect the 5 connectors (E to |). (See Figure-6)
2) Disconnect the 4 connectors (A to D} and draw out the front
panel in the direction of the arrow. (See Figure-3)
|
МАМ С.В
Fig. 3 Fig. 6
7 Supply reel platform.
\
Take-up reel
platform
Reel motor screw
|
Fig. 7 Fig. 8
REPCACEMENT OF ERASE HEAD
e When replacing the EH, fix the new EH tewporalily as illustrated
and perform the EH adjustment. After that, seal the nut. (Refer
to the Wiring-1, No. 9, as to the EH adjustment.)
aaa
Erase head
Actuating chassis
Fig. 9
rola
AA NT SN
AIWA'
= AD-F660 g's“
Follow the instructions carefully, which will allow the user to optimise the products’
performance and give many years of serivce.
1. No scratch and melting shall be made to covered lead-wires of an
a.c. primary circuit including mains leads.
2. No illegibility shall be given to the specification plate, the cau-
tion labels, the fuse labels and others.
3. When, on pattern sides of circuit boards, additional repair-parts
have been made up, the parts shall be firmly glued to circuit
boards or other components, unless the parts can be attached
firmly. | .
4. The following matters shall be maintained as they are, when
repairing.
1) Soldering of lead-wire ends
* Care should be taken of the space distance in an a.c, pri-
mary circuit as well as soldering.
2) Wiring and holding of lead-wires with wire-clips and binders
3} Materials of lead-wires
*e.g9.; For UL models, lead-wires to be used shall be ap-
proved or accepted by the UL.
4) Location of all kinds of insulators
5. After repaired, the insulation resistance or leakage current shall
be measured with 500 + 5V D.C and shall be not less than TMQ,
Measuring points:
2
3
4
5
Ny
Rating: More than 1ks2/500V DC.
‘6. General instructions for mechanism repair
1) The heads, capstan and pinch roller shall be cleaned of good
quality alcohol after repaired, because dirty heads shall cause
distorted sounds while dirty capstan and pinch roller shall
occur wow/flutter and take-up fault.
Lubricants been stained the surfaces of transmitting portion
of the belts, idlers, capstan and pinch roller shall be removed,
because slippery and faulty tape travel shall be caused.
When oiling, only one or two drops shall be applied so as
not to run over and be dispersed. Note should be taken of the
metal fitting for the capstan and rotating portions of the
idiers and pinch roller, especially.
E-rings and poly slider washers shall be replaced with new
ones, if once those have been removed. — No re-utilization
due to unreliability.
Regular spare-parts shall always be used for repair, because
using irregular parts and tampering with the products shall
cause deterioration, mulfunction and damage.
—
—
—
——
AD-F660 PHUYC. |
EXPLODED VIEW—1
UTT®3-5- Ru.
AIWA
| AD-F660 HHUUC.
PARTS LIST
MECHAN ICAL PARTS m * mark in this part list shows exclusive part
я Parts No. as Common
Ref. No. . ’
ef No Part No Changed to Description Model Q'ty
1~29 82-190-020-01 Front cabinet ass'y * 1
1-1 82-191-007-11 Cabinet, Front 1
1-2 82-190-014-01 Panel, Front * 1
1-3 82-190-004-01 Window, Meter * 1
14 82-190-016-11 Panel, Control * 1
1-5 82-190-001-11 Panel, Control * 1
1-6 82-188-003-01 Panel L, Front 1
1-7 82-190-670-11 Volume SL ass y * 1
18 87-231-033-21 - Q+2-—4 - 1
1-9 82-191-006-11 Holder, REC volume 1
1-10 87-261-092-21 V+3—4 2
1-11 82-191-201-01 Slide lever 1
1-12 82-190-203-01 Slider, Volume * 1
1-13 87-321-074-21 ОТ, +2.6—8 2
1-14 82-188-034-11 Touch-key, Counter 1
1-15 82-188-045-11 Touch-key, MS 1
1-16 82-188-020-01 Touch-key, REC MUTE 1
1-17 82-188-019-01 Touch-key, REC 1
1-18 82-188-037-01 Guide, Light 4
1-19 82-188-022-01 Touch-key, PAUSE 1
1-20 82-188-017-01 Touch-key, FF 1
1-21 82-188-021-01 Touch-key, STOP 1
1-22 82-188-016-01 Touch-key, PLAY 1
1-23 82-188-018-01 Touch-key, REW 1
1-24 82-188-223-01 Shaft A, Touch-key 1
1-25 82-188-224-01 Shaft B, Touch-key 1
1-26 - —- = — Control key A ass’y 1
1-27 82-188-033-01 Cabinet A, Bottom 1
1-28 87-326 073-01 QT, +2.6—6 7
1-29 82-190-215-01 C-spring, Earth * 1
1-30 82-190-021-11 Sheet, BIAS instruction * 1
1-31 82-184-034-01 Knob 2
1-32 82-191-003-01 Knob, REC volume 1
1-33 82-190-205-11 Sheet, Poly-Collar * 1
1-34 87-085-161-01 Foot 4
1-35 82-190-01 7-01 Cassette window ass'y * 1
1-36 82-168-018-31 Cabinet, Bottom 1
1-37 82-188-035-01 Cabinet, Steel 1
AD-F660 EXE. | AIWA- |
К, |
EXPLODED vez , pa ; ‘ 1 |
VTTD26-6
> “о T®3-6
NT T®3-6 = Ч > > A
Zi -wz-10-08 O
J N |
|
\ TT®264
VTT®2.6-6
&>—5 PCB-B
| AIWA
| AD-F660 HHU UC,
- EK,GZ
L
Ref. No. Part No. changed 1a Description common Q'ty
2-1 82-191-001-01 - Knob, TAPE/SOURCE 3
2-2 82-190-213-01 Rubber cushion * 2
2-3 82-190-202-01 Guide, LED * 1
24 82-422-073-11 Himeron cloth, Blind 1
2-5 82-188-012-01 Push-button, POWER 2
2-6 82-190-201-01 Front chassis Lo 1
2-7 82-757-210-01 Rod ST-RIO 1
2-8 82-162-215-01 Holder, POWER AD-R500 1
2-9 82-188-210-21 Lever C, Box 2
2-10 82-188-205-21 Cassette box ass’y 1
2-11 82-188-219-01 Holder L, Cassette 1
2-12 82-188-220-01 Holder R, Cassette 1
2-13 82-188-233-11 T-spring, OPEN 1
2-14 82-541-240-11 Lever, Oil-damp TPR-950 1
2-15 82-188-229-01 Collar, Cassette box lever L 2
; 2-16 82-188-232-01 Collar, Cassette box lever R 1
; 2-17 82-188-039-11 Cassette plate ass'y 1
| 2-18 82-179-228-01 Oil-damper 1
| 0 2-19 82-188-211-01 Holder, Oil-damp 1
| 2-20 82-188-212-11 Plate, EJECT slide 1
2-21 82-188-213-41 Mechanism holder L ass’y 1
2-22 82-188-214-21 Mechanism hoider R ass‘y 1
2-23 82-188-204-01 Chassis L, Amp. 1
2-24a 82-190-008-01 Panel, Rear (H, HU models only) * 1
b 82-190-009-01 Panel, Rear (U, C models only) * 1
с 82-190-010-01 Panel, Rear {E model only) * 1
d 82-190-011-01 Panel, Rear (K model only) * 1
e 82-190-012-01 Panel, Rear (G model only) * 1
f 82-190-013-01 Panel, Rear (Z model only) * 1
2-25a 87-085-184-01 Cord bushing (H, HU, U, C models only) 1
b 87-085-185-01 Cord bushing (E, K, G, Z models only) 1
2-26a 87-034-826-01 AC power cord (H, HU models only) 1
b 87-034-951-01 AC power cord (U, C models only) 1
с 87-034-877-01 AC power cord (E, Z models only) 1
d 87-034-975-01 AC power cord (K model only) 1
e 87-034-892-01 AC power cord (G model only) 1
2-27 87-084-078-01 Nylon rivet 3—4.5 2
2-28 82-385-383-11 Stopper, Rod 1
2-29 82-309-208-21 Rod, Selecter 1
2-30 82-190-206-01 STE-2 (Black) * 2
9 2-31 82-188-209-01 Chassis R, Amp. | 1
2-32 82-190-015-01 Name plate, Spec. (U model oniy) * 1
2-33 82-190-217-01 Cover, POWER (E, K, G, Z models only) * 1
2-34 87-084-063-01 Nylon rivet 3—5.5 (H, HU models only) 2
2-35 82-190-216-01 G cushion * 1
AD-F660 HHU.UC. |
| KGZ Ши
EXPLODED VIEW-3
1 | 2 3 5 6 | 7 |
UD2-6
A {
EH UD2-6 |
4
a 86 a
19 RPH
< < >
-12 - $ |
8 oo Jn E > 8 E
W2-6-04— 4, уФ16-38 —18 23 E -UTIO2-6
u
_ 5
|
Cc
D
E
F
G
H
|
J
10
AIWA
AD-F660 H-HUUC.
Parts No. e as Common ,
Ref. No. Part No. Changed to Description Model Q'ty
3-1 81-507-201-11 | Outsert chassis ass'y 1
3-2 81-505-242-11- Lever, Metal 1
3-3 81-507-228-01 C-spring, Pinch lever S 1
34 81-507-217-T1 | i-spring, Pinch lever S 1
3-5 81-507-207-11 | Pinch lever S ass'y 1
3-6 87-081-963-01 Nylon nut M2—3.5 2
3-7 81-505-239-01 Lever, Eject 1
° 3-8 81-505-273-01 T-spring, Lid lock 1
3-9 81-505-241-21 REC blocking lever 2
3-10 81-505-260-01 P-spring, Pressure cassette 1
' 3-11 81 -505-268-01 T-spring, Slide brake 1
3-12 87-073-005-01 Steel ball 26 2
3-13 81-505-240-21 Lever, Cassette sensor 1
3-14 81-505-238-01 Blocking plate, EJECT 1
3-15 81-507-219-01 C-spring, Supply reel platform 2
3-16 81-505-226-11 Take-up reel platform ass'y 2
3-17 82-303-298-01 Cap, Take-up reel platform 2
3-18 82-565-360-01 C-spring, EH 1
0 3-19 81-507-215-01 Holder, EH 1
3-20 87-057-620-01 Label, Head 1
3-21 87-038-056-01 Wire binder 1
3-22 82-307-212-01 C-spring, EH 1
3-23 81-507-224-01 P-spring, Actuating chassis 1
3-24 81-507-227-01 Spacer 2
3-25 81 -507-214-21 Actuating chassis ass'y 1
3-26 81-505-265-11 E-spring, Actuating chassis 1
3-27 81-505-307-01 Lever, Brake eject 1
3-28 81-505-266-01 E-spring, PAUSE plate 1
3-29 81-505-207-01 Plate, PAUSE 1
3-30 81-507-220-01 Plate, Pinch lever 1
3-31 81-505-210-11 Pinch lever F ass'y 1
3-32 81-505-267-01 T-spring, Pinch F 1
3-33 81-507-229-01 G brake 2
3-34 81-505-236-11 Lever, Slide brake 1
3-35 81-507-222-01 Lever, Back tension 1
3-36 81-507-223-01 T-spring, B.T 1
11
. пин,
AD-FG60ER AZ" L AIWA
EXPLODED VIEW—4
| 2 3 | 4 5 6 7 |
A —
Pulley height
B
T0 Main motor
18
e —
VFT2 ®26-30 Е ИТ ар
| в
D Puliey height
Reel motor pulley
4
— 12.5mm
_ 1
E
Pressure Reel motor
— plate spring
4.2mm
C1
F
Reel motor
G
H
|
J
IWA
| AD-F660 EXC
ARTI gp PEERY ET EEE SO
13
Ref. No. Part No. Changed 10 Description Model” Q'ty
4-1 -81-505-230-01 Lever, PLAY 1
4-2 81-505-234-01 Gear, PLAY cam 1
4-3 81-505-231-01 Trigger lever, PLAY 1
44 81-505-272-01 T-spring, Cam —— 1
4-5 81-505-308-01 Lever B, PAUSE 1
4-6 81-505-283-01 T-spring, PAUSE lever 1
4-7 81-505-235-01 Gear, PAUSE cam 1
4-8 81-505-233-01 Trigger lever, PAUSE 1
4-9 81-505-204-01 Chassis B, Mechanism 1
4-10 81-505-261-01 C-spring, Flywheel F 2
4-11 81-505-225-01 Gear, Flywheel 2
4-12 81-507-205-01 Flywhee! S assy 1
4-13 81-507-225-01 Rubber belt B 1
4-14 87-081-483-01 Motor screw, M2.6 3
4-15 87-087-029-01 Rubber cushion 3
4-16 81-507-221-01 Holder, Motor 1
4-17 81-505-245-01 Motor pulley 2-10-6.8 1
4-18 82-565-373-01 Screw, Thrust 2
4-19 81-507-216-01 Rubber beit A 1
4-20 81-507-203-31 Flywheel T ass‘y 1
4-21 81-505-282-01 T-spring, FR idler 1
4-22 81-505-254-01 Lever A, FR idler 1
4-23 81-505-250-21 FR idier ass'y 1
4-24 81-505-271-01 T-spring, Trigger lever 1
4-25 81-505-269-01 T-spring, Pinch plate 1
26-32 09-047-198-01 Reel motor ass'y 1
4-26 81-505-606-01 Shield plate 1
4-27 81-505-604-11 Motor, Reel 1
4-28 81-505-290-01 C-spring, FR idler C 1
4-29 81-505-287-11 Lever C, FR idler 1
4-30 81-505-289-01 Pressure plate spring 1
4-31 81-505-292-11 Felt 4.5—7.2—0.8 1
4-32 81-505-257-01 Pulley, Reel motor 1
AIWA
AD-F660 Et ESS. |
- of
SPRING APPLICATION POSITION
T-spring, Slide brake.
T-spring, Lid lock
C-spring, Supply reel platform
C-spring, Supply reel platform
e .
T-spring, B. T
C-spring, Pinch lever 7
<DD>
E -spring, Actuating chassis
T-spring, Pinch lever S T- spring. Pinch Е
T-spring, FR idler
T-spring, Pinch plate
Sub motor /
T-spring, Trigger lever
IRN
T-spring, PAUSE
T-spring, Cam
14
RETO TD PE
22 2 ———— це
AD-F660 HH
U ‚U e
AIWA’ =
Ba 1 ’ GZ
ACCESSORIES/PACKAGE
Part No. e Common В
Ref. No. Part No. Changed to Description Model Q'ty. ;
1 82-190-852-01 Printed indiv., Packing * 1
2 82-188-852-01 Cushion L, Printed indiv. 1
3 82-188-853-01 Cushion R, Printed indiv. 1
4 82-190-853-01 Outer carton(H,HU,C,E, K,G,Z models only) * “I 1/3
5 ‚' 82-190-854-01 Outer carton (U model only) * 1/3
6 87-051-131-11 Poly-vinyl sack (H, HU, U, C, Z models only) 1
Te 87-051-135-11 Poly -vinyl sack (E, K, G'nodeis only) 1
8 87-056-627-01 Poly-vinyl sack 1
9 82-190-855-01 Pad, Auxiliary * 1
10 82-190-904-01 Instructions booklet * 1
11 87-051-171-11 Poly -vinyl sack 1
12 87-056-008-11 Label, AC power cord (K model only) 1
13 87-056-009-51 Distributors list(H, C, E, K, G, Z models only) 1
14 87-056-045-01 Guarantee card (HU, U models only) 1
15 87-056-057-01 Service station list (HU, U models only) 1
16 87-056-059-01 Guarantee card (G model only) 1
17 87-056-013-01 Guarantee card (C model only) 1
18 87-056-050-01 Safety instruction (U model only) 1
19 87-032-845-01 Siemens plug (H, HU models only) 1
20 87-034-978-01 Connection cord CW-254 BSK 2
15
B30225(1)-Z
AIWA Co., Ltd. Tokyo Japan
Printed in Japan
AIWA
ELECTRICAL MAIN PARTS LIST
Symbol No.
Part No.
Description
< MAIN CIRCUIT BOARD SECTION >
PCB-A
IC1 87-027-919-01
IC101, 102, |87-027-895-01
103, 104, 105
1C201 87-027-949-01
1202 87-027-739-01
IC401, 501 87-027-538-01
@ic502 82-191-644-01
®1c503 82-191-645-01
1C504 87-027-510-01
Q1 89-108-854-51
Q4 89-108-854-51
04 89-210-154-01
Q3 89-412-653-41
05, 51, 105, |89-320-011-01
106, 205, 206,
, 207, 208, 307,
) 308, 524, 525,
526, 528, 529
06 89-406-555-01
Q52, 54 89-110-155-01
503, 504, 505,
516, 518, 519,
522
Q53, 103, 104, |89-318-155-01
107, 108 — 115,
116, 201, 202,
203, 204, 301,
303, 304, 305,
309, 310, 311,
501, 502, 506~
515, 517, 527
Q101, 102 89-309-455-61
Q117, 118 89-321-204-01
Q303, 306, 89-109-521-01
512, 520, 521
D1 87-027-815-01
D2, 3,302, 513 |87-027-475-01
D4, 502 87-027-686-01
a D51, 52,53, 54, 187-027-097-01
55, 101, 102,
103, 104, 303,
304, 305, 307,
308, 402, 403,
405, 501,
503 ~ 512,520
D514 87-027-584-01
L101,102 87-030-061-01
L103, 104 87-005-093-01
L105, 106 87-005-148-01
L107, 108 82-190-627-01
L201, 202 82-190-629-01
L302 87-003-051-01
L303 82-190-666-01
X501 87-008-236-01
RY301 87-031-751-01
J, 2 82-191-648-01
J3,4,5,6 87-049-055-01
J8 87-032-985-01
$2 82-191-655-01
$18, 19 87-031-752-01
$27 87-031-752-01
SFR101, 102, |87-021-687-01
203, 204
SFR103, 104 |87-021-613-01
SFR201, 202 {87-021-569-01
PIN1 82-189-649-01
Main circuit board
IC, M5230L
IC, M5218L
IC, NIM2043S-A
IC, NJM4556D
IC, uPD 4069
IC, HD38755A62
IC, uPD546C-357
IC, uPD4001
Transistor, 2SA885R, S
Transistor, 2SA885R, S
(H,HU models only)
Transistor, 2SB1015Y ,GR
(U,C,E,K,Z,G, models only)
Transistor, 25D1265 (OP)
Transistor, 25C2001 (K)
Transistor, 2SD655E
Transistor, 2SA1015 (GR)
Transistor, 25C1815 {GR)
Transistor, 2SC945L (PQ)
Transistor, 2SC2120 (Y)
Transistor, 25A952K
Diode, 1B481
Zener diode, HZ-6B1
Zener diode, HZ-12A1
Diode, 151555
Zener diode, HZ9LC1
Low-pass filter, 86K
Micro inductor coil, 4,7mH
Coil, 23mH -
Coil, F10
Low-pass filter, 85K-2
Choke coil, 470uH
OSC coil, EH
Ceramic resonator CSB 400P
SW solenoid
Jack, 6,360w/switch (MIC)
4P pin jack (LINE IN, LINE OUT)
DIN socket 8p (REMOTE)
Push-switch (MONITOR)
Slide switch (MPX FILTER
PHONES LEVEL)
Stide switch (Z model only)
Semi-fixed resistor, 30k2-B
Semi-fixed resistor, 10k-B
Semi-fixed resistor, 50k2-B
Pin, 9P
Symbol No. Port No. Description
PIN2 82-190-668-01 Pin, 6P
PIN3 87-049-150-01| Pin, 10P
PIÑA 87-049-152-01| Pin, 12P
PINS 87-049-038-01 Pin, 3P
PIN7 87-049-065-01| Pin, 5P
PINS 87-049-044-01 Pin, 7P
— PIN9 87-049-143-01 Pin, 3P
PINTO 87-049-050-01 Pin, 6P
CON11 82-190-648-01| Connector ass'y, 4P
< Resistors > |
/AR1 , 3 87-029-023-01 470 AW Fuse resistor
R11 87-029-367-01| 159 ZW Fuse resistor
Л\в189, 190 87-029-102-01| 479 %W Fuse resistor
AR13,17.332 |87-029-094-01| 1592 ИМ Fuse resistor
A\R650 87-029-094-01| 152 ZW Fuse resistor
(U,C,E,K,G,Z models only)
R522 87-025-150-011 1802 1W Metal film
< Capacitors >
C1, 2 87-015-987-01| 2200uF 16V Electrolytic
C1065, 106, 87-015425-011 1uF 25V Aluminum solid
207, 208
C131 87-014-118-01| 0.015uF PP
C137, 138 87-014-037-011 150pF PP
C139, 140 87-014-033-01| 100pF PP
C153, 154 87-014-061-01/ 1500pF PP
C1565, 156 87-014-055-01| 820pF PP
C203, 204 87-014-119-01| 0.027uF PP
C306 87-015-379-01| 1uF 50V Electrolytic BP
C502, 503 87-014-041-011 220pF PP
< LED CIRCUIT BOARD SECTION >
PCB-B
Q601 ~ 604
D601, 602,
603, 607,
612,617
D605, 613,615
D604, 606,608
609, 610, 611
614,616
F L601
89-318-155-01
87-027-542-01
87-027-671-01
87-027-543-01
82-190-625-01
LED circuit board
Transistor, 2SC1815 (GR)
LED, LN217RP (STOP, MEMO
REWIND, REPLAY, C, MT,
INTRO)
LED, LN417YP (SOURCE, CrOz,
ADMS)
LED, LN317GP (TAPE B, 46L,
120, 90, 60, 46, NORMAL, MS)
Electronics counter 4
< SWITCH-1 CIRCUIT BOARD SECTION >
PCB-C
D306
VRI
VR2
53, 4
< JACK CIRCUIT BOARD
PCB-D
J7
87-027-097-01
82-190-628-01
82-191-647-01
87-031-692-01
82-191-649-01
Switch-1 circuit board
Diode, 151555
Volume, 1k$2-B (BIAS)
Volume, 250k2-W (BALANCE)
Push-switch (DOLBY ON/OFF,
B/C)
SECTION >
Jack circuit board
Jack, 6,3¢ (HEADPHONES)
< SWITCH-2 CIRCUIT BOARD SECTION >
PCB-E
Arı
ANFI
Ari
Л
526
Aci
87-035-217-01
87-035-293-01
87-035-1 32.01
87-033-147-01
82-304-743-01
87-031-735-01
87-019-112-01
Switch-2 circuit board
Fuse, “T 315MA
(H, HU models only)
Fuse, 400mA
(U, C models only)
Fuse, 160mA (T)
(E, K, Z, G models only)
Fuse clamp
1P terminal
Push-switch (POWER)
< Capacitor >
0,01uF Spark killer
Symbol No.
Port No.
Description
< SWITCH-3 CIRCUIT BOARD SECTION >
PCB-F
s1
*
- Switch-3 circuit board section
82-191-657-011-
Slide switch (TIMER)
< VOLUME CIRCUIT BOARD SECTION >
PCB-G
VR3
CON10
82-190-642-01'
82-191-641-01
82-190-646-01
Volume circuit board
Slide volume, 100kQ-A
(RECORD LEVEL)
Connector ass 'y, 6P
< DOLBY-NR1, 2 CIRCUIT BOARD SECTION >
1С1, 2
L1, 2
PIN
PIN
R9, 10
R11,12
R35, 36
C15,16
C21, 22, 23,
24, 45, 46
87-049-119-01
87-025-295-01
87-015-61 7-01
82-191-630-01
87-027-918-01
87-005-155-01
87-049-1 1 7-01
87-025-271-01
87-025-296-01
87-015-366-01
Dolby-unit (W/PCB-H, 1)
IC, HA12038-01
Coil, 36mH
Pin, 7P
Pin, 9P
< Resistors >
51kQ %W Metal film
15k2 %W Metal film
56kQ “UW Metal film
< Capacitors >
10uF 16V Electrolytic LL
0,15uF 10V Aluminum solide
< KEY BOARD CIRCUIT BOARD SECTION >
PCB-J 82-190-641-01
D515, 516 87-027-921-01
D517 87-027-922-01
D518 87-027-923-01
ss, 6, 7, 11, 87-031-498-01
12, 13, 14,15
S8, 9,10,16, |87-031-642-01
17
CON6 82-190-643-01
CON7 82-190-645-01
CONS 82-190-644-01
< AUTO STO
PCB-K 81-505-605-01
87-027-644-01
CP501, 502
Key board circuit board
LED, SR506 (REC, REC MUTE)
LED, SR206D (PAUSE)
LED, SY406D (PLAY)
Tact switch (STOP, PAUSE, REC
MUTE, REW, PLAY, FF; REC, MS)
Tact switch (RESET, MEMO
REWIND, LENGTH, REPLAY/
STOP, TAPE TIME)
Connector ass'y, 8P
Connector ass'y, 5P
Connector ass'y, 7?
P CIRCUIT BOARD SECTION >
Auto stop circuit board
Photo sensor, NJL-5141 EA
< INDICATOR CIRCUIT BOARD SECTION >
82-190-624-01
<MISCELLANEOUS>
/NTI 82-190-631-01
ANTI 82-190-632-01
ATI 82-190-633-01
ANE 82-190-634-01
RPH 87-046-194-11
EH 87-046-192-01
M501 87-045-1 75-01
M502 09-047-198-01
DS 87-027-944-01
SOL501 81-507-603-01
SOL502 81-505-603-01
S20, 21,22, |81-505-607-01
23
S24, 25 81-505-601-01
/Ns28 87-031-586-01
87-038-060-01
82-598-637-01
LED indicator ass’y
(W/PCB-L)
Power transformer
(H, HU models only)
Power transformer
(U, C models only)
Power transformer
(E, Z models only)
Power transformer
(K, G models only)
REC/PB head
Erase head
DC motor, System servo
Reel motor
LED, SLF301C
Solenoid 9ME-B (PAUSE)
Solenoid 9ME-A (PLAY)
Leaf switch (REC,
CrO2, METAL, CASSETTE)
Leaf switch (PLAY, PAUSE)
Rotary switch (VOLTAGE
SELECTOR) (H, HU models only)
Heatsink
Heat sink
> B5BB5 b
Symbol No. Port No. Description
87-034-826-01| AC power cord
(H, HU modeis only)
87-034-951-01| AC power cord (U, C models only)
87-034-877-01| AC power cord (E,Z model only)
87-034-975-01| AC power cord (K model only)
87-034-892-01| AC power cord (G model only)
87-085-184-01} Cord bushing
“ (H, HU, U, € models only)
87-085-185-01| Cord bushing
(£, K, G, Z models only)
CON1 81-505-631-11| Connector ass'y, 9P
CON2 81-597-602-01! Connector ass'y, 6P
CON3 81-505-632-01| Connector ass'y, 10P
CON4 81-507-601-01| Connector ass’y, 12P
CONS 89-051-003-01| Connector ass'y, 3P
/N\ Safety component symbol
This symbol is given to important parts which serve to maintain
the safety of the product, and which are made to conform to special
safety specifications. Therefore, when replacing a component with
this symbol, make absolutely sure that you use a designated part.
C-MOS IC handling precaution
The C-MOS IC's construction makes this part susceptible to damage
by static electricity and so take sufficient care in regard to follow-
ing articles.
1. Need to be put on conductive sheet, to be put in a metallic box
and to be wrapped by aluminium foil for transportation and
deposit.
2. To use solder iron less than 40W (less than 260°C) of power
consumption for soldering. But do not overheat more than 10
second.
3. Do not perform a conductivity test with a tester, etc. Refer to
the circuit voltages of each part.
4 The ICs on the electrical parts which are indicated by an C-
MOS IC symbol mark { @ ).
Note: Combination Circuit Board
The parts on the electrical parts list which are indicated by an
asterisk (*) are supplied as one single combined circuit board.
Therefore,
they will not be supplied separately.
H this becomes
necessary, please order the entire circuit board.
Combination circuit board A 82-190-601-21
PCB-A 82-190-602-21
PCB-B 82-190-603-21
PCB-C 82-190-604-21
PCB-D 82-190-607-21
PCB-E 82-190-605-21
PCB-F 82-190-606-21
e Ceramic capacitor
87-018-_[[:-01
Capacitor Parts code
150pF 034
220pF 036
1,000pF 044
0,01UF 047
SCH
NO
1)
2)
3)
4)
5)
6)
7)
| AD-F660 HHUUC,
1/2
SCHEMATIC DIAGRAM-1 S/M Code No. 83-004
1 2 | 3 | 4 | 5 6 | 7 8 9 10 11 12 13 14 | 15 |
tion |
Io ВЕ (LE DOLBY-NR-1CB
| A a | HDOLBY-NR-2CB
Uy) | | a
J, C models only) | | 4 |
:,2 model only) EE = Sa a | |
< model only) — | DO moni Y 7 Boa TITS TITS
3 mode! only) | >
I + c49 4.7/50
leis only) , Di + 1 MONI OUT
I
B ! 1 В $ REC OUT
1s only)
' + |
ЭР i
3p — ' |
10P / |
12P | On |
! HIGH LEVEL STAGE LOW LEVEL STAGE s2 —_RECPA.
IP С + s2 ss Si 8
о
отл VE] — 84e 52.83 — Lg
! REC IN я 83 T
IPB IN у, GND Y < |
— 4 — op |
— | в 55 Z > =, | |
a i i | «й
arve to maintain | [rower 8% |
Inform to special } , SUPPLY | {
component with D I | LA ,
signated part. eno. Be EE PEN A E A ИРА pd dE al
= 3
i Vv 6 £37 ai | 74° ®
ptible to damage @ Усс & |” EL el 2 |2 | ° S ng
-egard to follow- GND 2 de “т 71 Ta] оу 5
REC IN 3 ———— HER 1 я es le |g
in a metallic box E Y #2 ox fs 5 53 y Ss = [à e
insportation and PB IN © 87s ss 2 3 ® "Ц o $x # #°
= © > ST 2 =T 270 TT =
© O vec 4 1 ° JE Ts 813 BT $] * 5 5 |
'60 C) of power 7
at more than 10
er, etc. Refer to a
Е DVedis— (€ MONI OUT
,
licated by an C- GND § — ANOTHER CHANNEL IC: 1C2 (HA12038-01) L 2 REC OUT
i
REC IN 10 — R:R6~R40
PB IN 1 C: C6~C50 +
i I
Ovec ú — L:L2 (36mH6) |
G fe mm mm mm Ea on aaa
indicated by an DOLBY-C UNIT 3H C.B ASSY
j circuit board. L un — ыы — —_ {3 4
if this becomes REC/P.B C/B/OFF
NOTES:
1) MR B (+) power supply 8) Explanation of symbols
2) = Signal path М Mylar capacitor
E» Rec path, (A) Aluminum solid capacitor -
3) The voltage is the reference value measured with a ФР Polypropylene film capacitor I
tester (20 k-ohms/V DC) when there are no signals. @P Bi-polarized capacitor
But ( ) is with AM reception or recording. CD Low-leakage capacitor 4
An asterisk (*) indicates that the value was measured OD Tantalum capacitor Е
with a vacuum-tube voltmeter during recording. IM Fuse resistor 2SA1015 2SC945 2SA885
4) Resistors with no designation have a rated power of A} Nonflammable resistor 2SA952 asco
1/4W and a tolerance of +5%. 250655
5) Capacitors with no designation have a dielectirc AN Safety component symbol
strneght of less than SOWV. This symbol is given to important parts which serve
6) The only capacitor tolerance indicated are +5% (J) to maintain the safety of the product, and which are
and +10% (K). made to conform to special safety specifications.
7) Ceramic capacitor symbols: Therefore, when replacing a component with this
—1t— For temperature compensation (SL)
{= High dielectric constant system (YY)
—{I— High dielectric constant system (YW, YP, YZ)
Y - Semiconductor ceramic
—Y -— For temperature compensation (SH)
symbol, make absolutely sure that you use a de-
signated part.
This schematic diagram is subject to change without
notice in the interests of improved performance.
25D 1265 2561846
\D-F660 ER a 2° NOTES:
ER J 1) mmm B (+) power supply HEEB (—) power supply
2) ==» Signal path
SCHEMATIC DIAGRAM-2 => Rec path,
1 | 2 | 3 | 4 5 | 6 7 | 8 9 10 11 12 13 | 14 | 15 | 16
LH Cr MT 70us RESET | PLAY MUT RECMUT O-FF O-ADMS O-REC 1.MUS -5v s-PAUS +5v
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© STOP La av REC MUT y 7 y REMOTE
PAUS
CON 4 ¡ REC
| 5 > e 5 > 5
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7. CrO2 REC/P.B Frequency Characteristic Adjustment 3. Playback Frequency Characteristec Adjustment
Settings: e Test tape : TTA-119G 1 МАМ СВ or MN me Settings: e Test tape : TTA-117E
e Input signals : LINE IN 1kHz/10kHz (30mV)
e Test point : LINE OUT
e Adjustment locations : SFR103(Lch) Lo г A | Mm MN
Method: Supply a 1kHz, 30mV signal and adjust the recording . SFR
level so that the LINE output is made 38mV. @ o
SFR104(Rch) L 4 С
Recording and playback the 1kHz and 10kHz signals Os 5]
and adjust so that the output of 10kHz is 0-+0.5d8 |
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e Test point : LINE OUT
e Adjustment locations: SFR201(Lch)
SF R202(Rch)
Method: Playback the test tape and adjust so that the output of
10kHz is 0 + 0.5dB based on the 1kHz output.
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5. Bias OSC Frequency Adjustment
Settings: e Test point: TP3
e Adjustment location : L303 j
Method: Adjust so that the frequency at test point become [3
85kHz + 1kHz.
ТР2 _
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Settings: « Test point с ©)
TP2(Rch) ( ) L303
e Adjustment locations : L107(Lch) O [Ls ©)
L108(Rch)
Method: Adjust so that the voltage at test point become reduced SER L TR
to maximum value, Г
{Reference value : —1-—2V) |
SFRIOI
4. Playback Sensitivity Adjustment
Settings: e Test tape: TTA-161
*e DOLBY-NR SW: OFF
e Test point : LINE OUT
e Adjustment locations : SF R203(Lch)
SF R204(Rch)
Method: Playback the test tape and adjust so .that the output is
set to 540mV.
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CONQ
8. CrO2 REC/P.B Sensitivity Adjustment
Settings: e Test tape : TTA-1 119G
e Adjustment locations : SFR101({Lch)
SFR102(Rch)
e DOLBY-NR SW : OFF
e MONITOR SW : SOURCE- “TAPE
e input signal: 1kHz
Method: Supply a 1kHz signal and adjust the recording level so
that the LINE output is 38mV.
Next, set the MONITOR switch to the TAPE position.
Record and playback the 1kHz signal and adjust so that
the output is 38mV- + 0.5dB.
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CON 3 CON 4
1. Tape Speed Adjustment
Setting: e Adjustment location : SFR of motor,
9. Erase Head Adjustment
Settings: © Test tape : TTA-119MX
e Tape selector : METAL
e Input signal : 125Hz, OVU+10dB
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e Adjustment location : Erase head adjustment screw.
Method: Record a signal and the rewind the tape,
Erase the signal with no input and adjust so that the
erase ratio is 60dB or more for both the L and R
channels.
Check the no overerasing of the opposite tracks occurs.
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LL || L_ L e Adjustment location : Azimuth adjusting screw,
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Circuit description
1. Outline
This controlier is the combination of the deck mechanical
controller with the dual capstan CUE and REVIEW and the
electronic counter controller which incorporates a remaining
tape indicator.
2. Controller and peripheral circuit diagram
Mechanism
operation —> — Mechanism
keys
Mechanism
controller |
— Muting
Other
switches
LED
— tndication
Jp 1C503 al
Take-up reef <5
disk sensor Mechanica! 0000 STOP.
controlier PLAY. MEMORY
state sensor REWIND signa!
Supply reel <
disk sensor |
Counter
controller
FL
Counter —> — indication
function switch
—> LED
indication
IC50?
Fig-1
as the general controller
3-1-2. CUE, REVIEW: Possible by pressing the PLAY key
3. Mechanism controller specifications
3-1. General specifications
3-1-1. STOP, PLAY, RWD, FF, REC, PLAY/PAUSE: Same
and FF (or RWD) key together.
3-1-3. ONE TOUCH REC:
PAUSE mode.
3-14. TIMER-REC/PLAY : Same as the general specifications
3-1-5. Counter 0000 STOP/PLAY, MEMORY -REWIND:
This cannot be operated when the remaining tape is
displayed. This does not operate during the REC, MS,
INTRO-PLAY operations.
3-1-6. AUTO-REC MUTE: Same as the general specifications
3-2. Additional functions
3-2-1. MS: Same as general specifications
3-2-2. INTRO PLAY: By setting to CUE or REV with
INTRO PLAY ON, it plays the first 8 seconds of each
tune.
3-2-3. ADMS: ADMS is performed when the power is set to
ON.
it is set to the REC/PLAY-
PAUSE mode by pressing only the REC key in the
3-3. Description of microcomputer terminal
3-3-1. Terminal name {1C-503)
IC-503
N-C { CLi2: 42+ CLOCK INPUT
CLri
I«F¢ 2 1-F¢
REC ENABLE —3 I-RECEN
MS INPUT I-MUS
— INTRO PLAY SW I-ISW
|
bol
TAKE UP PULS INPUT IRTP
RESET
}
RST
!
-I-Q9—9—o—
TIMER PLAY I-TPL
TIMER REC
|
NOT USED | —
NOT USED | —
|
I-TREC
I-CBKY
1>LMT
— Бу 41 — —5V
K-REC 49 —REC INPUT
K-RMT 88+ REC MUTE INPUT
K-PAUS @h« PAUSE INPUT
K-STOP 66- STOP INPUT
K-FF 69<—FF INPUT
K-PLAY 6à—PLAY INPUT
K- AO E —REWIND INPUT
ow OUTPUT OF
0 -M- Low MOTOR
0-FWD &_ FWD OUTPUT
—({2 0 -CBEN
REC OUTPUT «(3 0-REC + 0-RWD de newno OUTPUT
T
ADMS OUTPUT «(i 0-ADMS S-PLAY 29 — ora CENOD
4 PAUSE SOLENOID
| M O-PCR S-PAUS e OUTPUT
NOT USED 4 0-TAPE 0-MS @—NOT USEC
|
1
|
REC MUTE OUTPUT
À
pe,
A
PLAY MUTE OUTPUT «3
|
TEST — TEST
+5v —=й —5у
sv €
0 +SQUR 0 FF
0 -RMT ВМТ
&- OUTPUT
|
D-PAUS 25— PAUSE IND.
0-PLMT D-INTS 2i-+ INTRG PLAY IND.
j
D-MS Ms INC
D-AMT 2 REC MUTE IND.
!
Direction of arrow snows tne signal tiow.
3-3-2. Terminal functions
Fig-2
“H“: High level, SV
CL: Low level, 0 or —5V
K-CST 40+ CASSETTE DETECTION
Pin No. | Terminal symbol Function
(7) | rST RESET terminal. Set to “H"
instantaneously when power is
switched ON; also set to “H""
instantaneously when power is
switched OFF. Set to “L” in
general.
T-PL Set to “H” during timer play
© T.REC -and recording.
Set to “L”' during OFF.
1 -CBKY Not used in F660. Set terminal
(7 |: СМТ me L” and terminal 11 to
Y |o-CBEN |
(3 |o-Rec Set to “H” during recording.
For erase, bias oscillator.
Pin No. | Terminal symbol
Function
(1) | с! (1)
@2 | с! (2)
The clock receives only 400Hz
from the counter microcompu-
ter, so CL (1) is not used.
Input: CL (2) only
Terminal toiinhibit ME.RWD
during REC.
Set to “L” from “H” when the
RWD command is input from
the microcomputer.
(a |o-ADMS Set to “H” for approx. 1.5sec
during power ON. For ADMS.
(5 | о: ВСВ Not used in F660. OPEN
0- TAPE terminal
A) |o0-SOuR
O - RMT Set to “H” during recording,
and “L” during REC-MUTE in
recording.
(9 |o-PLMT Set to “H” during REC/PLAY,
CUE/REV to release muting.
Set to “L” during INTRO
| PLAY, MS.
e9 TEST Connect to +5V.
@3 - 09 D— Indication output. Set to “H”
during operation.
26) 0—FF Set to ‘’H’’ during FF, CUE.
28 S-PAUS Set to “H” during PAUSE and
CUE/REV.
@9 |sPLAY Set to “H” during PLAY/REC,
CUE/REV.
GO O—RWD Set to “H” during RWD/REYV.
6? 0—FWD Set to “H” during REC/PLAY/
FF/CUE.
.@2 0—M—LOW Set to “H” during REC/PLAY.
(33~@0 | K—...
Key input. Set to “H” in general.
Accepts key input when
changed to “LL” from “H”.
(3) |!-RECEN
The terminal is set to “L” and
recording is not done when the
safety tab is broken off.
(4) |1-Mus
Signal input during INTRO
PLAY and MS. Set to “H” for
tunes and to “L” between tunes.
(6) |t-1sw
Switch to select the INTRO
PLAY and MS.
Repeats OFF — INTRO PLAY
— MS — OFF.
® |1-RTP
Inputs the pulse from the take-
up reel disk sensor. For AUTO-
STOP.
Table-1
3-4. Description of solenoid circuit
Aa rar, aa a Ad Lolo ;
| 4-4. Desc:
3-4-1. Description of PLAY solenoid: S-24 is set to OFF 4-4-1. °
during the stop mode, and when the S-PLAY pin of
the microcomputer is set to “H”, 0528 is ser to ON
and SOL502 is pulied in. When SOL502 is pulled in,
the gear PLAY cam turns and S-24 enters the ON
region. REWIND ©
0529 has been set to ON, so 0528 is set to ON simul- STOP ©
taneously when S-24 is set to OFF and SOL502 is set -
to OFF. The gear PLAY cam continues turning when PLAY C
SOL502 is set to OFF and stops at the PLAY position. C-€
When the S-PLAY terminal is set to “L” from “H”,
0529 is set to OFF, and the current flows to the 0528 Cs
base and SOL502 is set to ON again. C-12
The gear PLAY cam turns again and SOL502 is set to C-46.
OFF when S-24 enters the OFF region but the gear
PLAY cam turns to the STOP position. FL EG
FL GC
“ry нс
S-PLAY Terminal o | L не
L FL G
"ON
0528 or NT 1 ГО FL G
ON PULL
0529 orp | LL vo
. | RESET I‘
5:24 or —
Fig-4
3-4-2. Description of PAUSE solenoid: The operation is same 400k
as that of the PLAY solenoid mechanism.
The PAUSE operation also works to reiease braking
applied to the reel disk, so SOL501 is set to ON during
FF.RWD other than during PAUSE.
S-PAUS Terminal H” |]
FF: RWD “ e
ON .
0526 Im —] 4-4-2. Te
OFF PL
0527 >] ] —
OFF —— Pın No. | -
5-25 ON | | | (1 |
OFF Lt |
Fig-5
4. Counter controller specifications
4-1. Counter function
4-1-1.
4-1-2.
Addition and subtraction are same as with a general
counter. However, when the eject operation is done, it
Is reset.
MEMORY-RWD function: 0000-STOP, REPLAY
function is processed via this microcomputer and com-
mands are transmitted to the controller.
4-2. Remaining tape function
4-2-1.
The remaining tape is indicated in minute/second units
> during play /recording. When the unit enters the STOP
4-2-2.
and PAUSE modes while the remaining tape is dis-
played, the display is held.
When the unit enters the FF/RWD modes during
minute/second indication, the residual amount time is
indicated in minute units.
4-3. FL indication functions
4-3-1.
The counter controlier can be connected directly to
the FL grid and plate and all the indication terminals
are pulled down to —V-DIFP inside the micro-
computer.
set to OFF
LAY pin of
18 set to ON
is pulled in, .
ters the ON
0 ON simul-
DL502 is set
Jrning when
AY position.
“from “H”,
to the Q528
502 is set to
but the gear
—
IL
—
e
Fig-4
ation 1s same
'ease braking
to ON during
rar
Fig-5
sith a genera!
on is done, it
>, REPLAY
Li
iter and com-
:/second units
ters the STOP
а таре is dis-
nodes during
mount time is
ad directiy to
tion terminalis
e the micro-
4-4. Description of microcomputer terminal
4-4-1, Te rm inal name
0-F¢ —
REWIND OUTPUT +
STOP OUTPUT -É
"PLAY OUTPUT 4
| C-60 IND.
C-90 IND. —6
C-120 IND. ?
C-46L IND. —®
FL GRID3 +
FL GRID 5 4
FL GRID 4 Т
FL GRID 2 À
FL GRID 1 8
PULL DOWN В
VOLTAGE
RESET INPUTT
400kHz
С
!
L
—5V o
|.
|
78
osc.; |
1 —(9
1
{ — 0
+ Hv | 7
t— 2
4 0-Fé I-EJ e EJECT INPUT
0 -RWD
0-STP
0 -PL
0 -C60
0 -C90
0 -C120
0 -C46L
G-3
G-5
G-4
G-2
G-1
V-DISP
RESET
— BV
— BV
OSC 1
OST?
TEST
—5V
I-MT4h— METAL INPUT
>
s-10 e TAPE LENGTH SW
h G— FL PLATE ©
a S8— FL PLATE a
d 6 FL PLATE b
c 6 FL PLATE c
à @— FL PLATE €
|
{ di FL PLATE $
T
в 62— FL PLATE E
E TAKE UP PULS
ATP € INPUT
L _ SUPPLY PULS
н5Р ® INPUT
с-в 33. COUNTER RESET
j Sw
S-1728— TAPE TIME SW
!
5, MEMORY REWIND
s-g er SW
>. 0000 REPLAY
516 & STOP SW
I-PA 25. NOT USED
!
I-FF 20. FE. INPUT
1-RWD 23 — REWIND INPUT
I-PL 22-— PLAY INPUT
Direction of arrow
4-4-2. Terminal functions
shows the signal flow.
Fig-6
“H’: High level, +5V
“1”: Low level, 0 or —5V
Function
This is set to “L” in general and
to “H” when 0—RWD, 0—-STOP
or O—PL is output. This is used
to discriminate between the key
inputs of the mechanism con-
troller.
“L' is output to perform
memory-RWD in the counter
mode. Set to “H” in general.
“L” is output to perform 0000
STOP in the counter mode. Set
to “H“ in general.
“1” is output to perform 0000
REPLAY in the counter mode.
Set to “H” in general.
This is used for TAPE LENGTH
indication.
Connected to the FL grid.
This terminal determines the
internal puli-down potential.
Pin No. | Terminal symbol
(1) |0-Fo
(2) |o0-RwWD
| (3) |o-sTP
(4) |o-PL
OC...
(9-03 |G-.
* V-DISP
as | RESET
interna! reset is possible. Reset
is applied when this is connect-
ed to —5V.
Pin No.
Terminal symbol!
Function
С,
AD-F660 HU
(9.07
—5V
—5V
8. @
OSC
This is 400Hz ceramic oscillator.
€. €
+5V
+5V
PL
“H” 15 input during play,
record/piay and the remaining
minutes and seconds are
calculated.
I-RWD
H"" is input during RWD, and
the remaining tape in the RWD
direction is calculated.
I-FF
“H” js input during FF and the
remaining tape in the FF
direction is calculated.
Counter function input switch.
Set to “LL” in general, and “H”
is input when the key is set to
ON.
RSP
inputs the pulse output from
the supply reel disk. This is used
to measure the time it takes the
supply reel disk to complete 1
revolution during play.
RTP
inputs the pulse output from
the take-up reel. This is used for
the counter.
®
E
~~ lach
Connected to the FL plate.
I-MT
Set to “L” in general and to
"H” when METAL TAPE is
used. The remaining tape is
corrected for the thickness of
METAL TAPE.
This is used to reset the counter
to “0000” when the cassette is
not inserted during the counter
mode. The remaining amount is
erased during EJECT in the
remaining tape mode.
Table-2
4-5. Description of FL (Fluorescent lamp) counter
Г) (0
<
Ш
|
|
>
OD
J
G3
> [OD LD
0)
1 1
62 G1
Fig-7
The filament voltage is approx. 1.5V.
AD-F660 FH
UUC,
GZ
4-6. Description of indication
4-6-1. Tape length indication
° +5у
GND ——
=
OUTPUT
CE tata e —14v
ON
‘D608—D611
Fig-8
4-6-2. “0000” STOP, REPLAY, MEMORY REWIND indica-
tions:
—5V
0601
2.8msec
+5V q Ne
(9) G3
— 74V
Wave form-— —
of G3
^^
Y Y Y
| 14msec |
MICRO
COMPUTER À
TERMINAL (36
С
Fig-9
When terminal c is set to “H” white G-3 1s set to
‘’H’’, Q601 and Q602 are set to ON, and the 0000
REPLAY indicator LED lights.
When terminal b is set to “H” while G-3 is set to “H”,
0601 and Q604 are set to ON, and the 0000 STOP
indicator LED lights.
When terminal d is set to ’H”’ while G-3 is set to “H,
Q601 and Q603 are set to ON and the MEMORY
REWIND indicator LED lights.
The current flowing to the LED is not DC at this time
but the pulse frequency divided by 5.
5. Description of other functions
5-1.0000 STOP,
REPLAY, MEMORY REWIND
functions during CUE/REW/MS operations: -
IC502
0 -RWD
0-STP
0-PL
S-PAUSE
—5V
1C503
>< K-REW
—« K-STOP
4 m K-PLAY
© — Cu |
© O“ ©
и Oe DO
Πcrec
0518
<
al
=
Fig-10
AIW,
3 outputs of 1C502 are not pulled-down when S-PAUSE is
set to ‘’H’’, so 1C503 key input is not accepted.
When S-PAUSE is set to “L”, the 1C502 output is pulled
down via R560 ~ 562 during operation and 1C503 accepts
the operation. 2
1С502 terminal 22 circuit desctiption
+5V
D503
> 0-M-LOW
I-PL D504
> S-PLAY
Fig-11
When S-PLAY is set to””H” and OM-LOWis also set to “H”,
""H” is input to I-PL. €
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