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SERVICE MANUAL
Y1
HS-AP1MK7
STEREO
CASSETTE PLAYER
BASIC TAPE MECHANISM : TN-8SA-128
S/M Code No. 09-993-410-2S2
SU
PP
LE
ME
NT
This Service Manual contains information about the difference between HS-AP1MK7
<Y1> and HS-AP1MK3<YZ1>. If requiring other information, see Service Manual
HS-GS174/AP1MK3<YZ1,Y>. (S/M Code No. 09-978-215-40I)


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Maximum output
8 mW + 8 mW (EIAJ 16 ohms)
9 mW + 9 mW (EIAJ 32 ohms)
Power sources
DC 3V, using two R6 (size AA) batteries
AC house current using an optional AC
adaptor aiwa AC-300/AC-302
Maximum Dimensions
114 (W) x 92 (H) x 36.8 (D) mm
(41/
2 x 3
5/
8 x 1
1/
2 in.)
Weight
Approx.155 g, 5.4 oz (excluding batteries)
· Design and specifications are subject to change without notice.
· Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation.
"DOLBY" and the double-D symbol
are trademarks of Dolby
Laboratories Licensing Corporation.
SPECIFICATIONS
ELECTRICAL MAIN PARTS LIST
IC
87-A20-460-040
IC,MM1336CF
87-001-875-080
IC,BA1106FS
DIODE
87-020-339-080
CHIP DIODE,1SS226
MAIN C.B
C105
87-015-676-010
CAP,E 47-6.3 7L
C106
87-015-676-040
E/CAP 47/6.3
C116
87-015-691-040
CAP,E0.1-50 SRA
C119
84-439-620-010
CAP, ELECT 470-4
C120
84-439-620-010
CAP, ELECT 470-4
C121
87-015-695-010
CAP,E 1-50 7L
C123
87-015-674-040
CAP E 22-6.3M SRA
C125
87-015-674-080
CAP 22U-6.3V
C126
87-015-674-010
CAP 22U-6.3V
C127
87-018-134-010
CERA-SOL SS0.01
C230
87-018-134-010
CERA-SOL SS0.01
C701
87-010-303-080
C-CAP,S 330P-50CH
C702
87-010-303-080
C-CAP,S 330P-50CH
C703
87-018-131-010
CAP,1000P
J101
87-A60-122-010
JACK,DC 3.8
J102
83-HRL-602-010
JACK,3.5ST
R115
87-022-657-010
RES,K43G 0.68
SFR101
87-024-197-010
SEMI-FIXED RESISTOR, 1K
SFR102
87-024-197-010
SEMI-FIXED RESISTOR, 1K
SFR103
87-024-197-010
SEMI-FIXED RESISTOR, 1K
SW101
87-A90-050-010
SW, SL 2-2-2 NS (BLK)
TH101
87-026-256-090
THERMISTOR,HT-100
VR101
87-024-326-010
VOLUME 20KA
DOLBY C.B
C301
87-016-462-080
C-CAP,S 1-16 F
C302
87-016-462-080
C-CAP,S 1-16 F
C303
87-010-193-080
CHIP CAPACITOR,0.033
C304
87-010-193-080
CHIP CAPACITOR,0.033
C305
87-010-186-080
CAP,CHIP 4700P
C306
87-010-186-080
CAP,CHIP 4700P
C307
87-010-197-080
CAP, CHIP 0.01 DM
C308
87-010-197-080
CAP, CHIP 0.01 DM
C309
87-010-193-080
CHIP CAPACITOR,0.033
C310
87-010-193-080
CHIP CAPACITOR,0.033
C311
87-010-196-080
CHIP CAPACITOR,0.1-25
C312
87-010-196-080
CHIP CAPACITOR,0.1-25
C313
87-016-436-080
C-CAP,TN 47-4(B2)
C315
87-010-196-080
CHIP CAPACITOR,0.1-25
C316
87-016-462-080
C-CAP,S 1-16 F
C317
87-016-462-080
C-CAP,S 1-16 F
C320
87-016-462-080
C-CAP,S 1-16 F
C321
87-016-462-080
C-CAP,S 1-16 F
S303
87-036-123-080
CHIP SLIDE SWITCH,1-1-2
GEQ C.B
83-HRG-605-110
G-EQ ASSY(SB)
DESCRIPTION
REF.NO.
KANRI
NO.
PART NO.
KANRI
NO.
REF. NO.
DESCRIPTION
PART NO.


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DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.
KANRI
NO.
REF. NO.
DESCRIPTION
PART NO.
ADJUSTMENT
<TAPE PLAYER SECTION>
1. Motor load adjustment.
Perform the STOP
->PLAY and REVERSE operations ( or
PAUSE ON
->OFF ) after the motor is replaced. When the
tape starts running smooth, this adjustment is not necessary.
If wow is conspicuous at the begining of the tape-run, perform
this adjustment following the procedure below.
1) Solder both resistor pattern (B) and (C) of the MOTOR
AND GOVERNOR MATCHING ADJ. resistor group.
2) Set the tape speed (using speed adjustment SFR101).
3) Restrict the motor rotation by hand (or turn PAUSE ON).
4) Remove your hand and listen to the begining of the tape-run.
5) When the rise of tape is running is smooth, no more
adjustment is necessary.
If wow continues for 1 to 2 seconds at the rise time, reduce
the combined resistance according to procedure 6 and check
that the tape starts running smooth.
6) Solder the resistor pattern according to the table below.
7) Finally re-check the tape speed.
Caution : Cool the pattern down to normal temperature
after soldering. If the pattern remains heated,
the governor circuit does not operate normally.
Pattern
High
resistance (C)
Medium
resistance (B)
Low
resistance (A)
Open
Solder
Solder
Solder
Solder
Open
Solder
Open
Open
Step (2)
Step (1)
(Procedure
1 above)
MECHANICAL PARTS LIST 1 / 1
1
87-HGA-016-010
KNOB,SL DOL AP1MK7
2
87-HGA-017-010
KNOB,SL TRE AP1MK7
3
87-HGA-018-010
KNOB,SL BAS AP1MK7
4
87-HGA-019-010
KNOB,SL S-B AP1MK7
5
87-HGA-015-010
PANEL,CASS AP1MK7
6
87-HGA-008-010
PLATE,INDI G-EQ
7
87-HGA-009-010
PLATE,INDI DOLBY
8
87-HGA-014-010
LID,CASS AP1MK7
9
87-HG8-208-010
SPR-T,CASS
10
87-HG8-215-010
SPR-P,CASS A
11
87-HGA-067-010
FRAME,CENTRE DOLBY
12
87-HGA-058-010
BTN,PLAY
13
87-HGA-059-010
BTN,REW
14
87-HGA-060-010
BTN,FF
15
87-HGA-061-010
BTN,STOP
16
87-HG8-015-010
KNOB,RTRY VOLUME
17
87-HGA-063-010
LID,BAT
18
87-HGA-068-010
CABI,REAR
A
87-067-732-010
TAPPING SCREW,VT1.4-3
B
87-262-505-310
V+1.4-2.5 BLK
C
87-262-533-310
V+1.7-6
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.


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2­11, IKENOHATA 1­CHOME, TAITO-KU, TOKYO 110, JAPAN TEL:03 (3827) 3111
L
Printed in Singapore
A4
ACCESSORIES / PACKAGE LIST
9630466
1
87-HGA-907-010
IB,YZ(6L)C
2
87-B30-168-010
HEADPHONE,HP-MOO6(K)
3
84-447-019-110
CLIP,BELT
DESCRIPTION
REF. NO.
KANRI
NO.
PART NO.