Aiwa HS-PS173 User manual

SERVICE MANUAL
STEREO CASSETTE PLAYER BASIC TAPE MECHANISM : 4ZM-2 P17NC
HS-PS173 Y, YH, YJ
S/M Code No. 09-00B-438-2R1
REVISION
•This Service Manual is the “Revision Publishing” and replaces “Simple Manual”
HS-PS173 (Y), S/M Code No. 09-00A-438-2T1.
DATA

– 2 –
SPECIFICATIONS
Maximum output: Y: 4 mW + 4 mW (EIAJ 16 ohms)
YH, YJ: 15 mW + 15 mW (EIAJ 32 ohms)
Power source: DC 3 V using two R6 (size AA) batteries
YH: AC house current using the optional
AC adaptor AIWA AC-D302
Maximum dimensions: 91.5 (W) x 116.5 (H) x 31.0 (D) mm
(35/8x 45/8x 11/4in.)
(excluding projecting parts and control)
Weight Approx.109 g (3.8 oz) (excluding batteries)
• Design and specifications are subject to change without
notice.
ACCESSORIES / PACKAGE LIST
DESCRIPTIONREF. NO. KANRI
NO.
PART NO.
1 8A-HKA-079-010 CLIP,BELT TRANS
2 87-B30-430-010 HEADPHONE,HP-M029(R) <[R]Y>
2 87-B30-431-010 HEADPHONE,HP-M029(BL) <[L]Y>
2 87-B30-432-010 HEADPHONE,HP-M029(G) <[G]Y>
2 87-B30-434-010 HEADPHONE,HP-M029(DG) <[LD]Y>
2 87-B30-444-010 HEADPHONE,HP-M029(T2R) <[P]YH>
2 87-B30-445-010 HEADPHONE,HP-M029(T2BL) <[LD]YH>
2 87-B30-446-010 HEADPHONE,HP-M029(T2G) <[GL]YH>
2 87-B30-448-010 HEADPHONE,HP-M029(T2DG) <[LD]YJ>
3 8B-HKB-901-010 IB,Y(EGFSI)-C <Y>
3 8B-HKB-902-010 IB,Y(EDPOHCZ)-C <Y>
3 8B-HKB-905-010 IB,YH(ECC)-C <YH>
3 8B-HKB-906-010 IB,YJ(ECCA)-C <YJ>

KANRI
NO.
REF. NO. DESCRIPTIONPART NO.
– 3 –
ELECTRICAL MAIN PARTS LIST
IC
87-A21-684-040 C-IC,TA2145AF
DIODE
87-A40-630-040 C-DIODE,RB411D <YH>
MAIN C.B
C1 87-012-277-080 C-CAP,U 1800P-50 K B
C2 87-012-277-080 C-CAP,U 1800P-50 K B
C3 87-012-284-080 C-CAP,U 6800P-50 K B
C4 87-012-284-080 C-CAP,U 6800P-50 K B
C5 87-015-674-040 CAP,E 22-6.3 M 7L SRA
C6 87-015-674-040 CAP,E 22-6.3 M 7L SRA
C7 87-012-277-080 C-CAP,U 1800P-50 K B
C8 87-012-277-080 C-CAP,U 1800P-50 K B
C9 87-012-274-080 C-CAP,U 1000P-50 K B
C10 87-012-274-080 C-CAP,U 1000P-50 K B
C11 87-A10-489-040 CAP,E 220-4 7L SR
C12 87-A10-489-040 CAP,E 220-4 7L SR
C14 87-015-681-040 CAP,E 10-16 7L SRA
C15 87-010-831-080 C-CAP,U 0.1-16 Z F
C17 87-A11-056-080 C-CAP,U 1-10 Z F
C18 87-A11-056-080 C-CAP,U 1-10 Z F
C27 87-010-831-080 C-CAP,U 0.1-16 Z F <YH, YJ>
C51 87-015-695-040 CAP,E 1-50 7L SRA
J1 85-HRL-623-010 JACK,3.5 BLK ST BLK
J2 87-A61-124-010 JACK,DC DIA2.75 BLK TC <YH>
R51 87-A00-530-080 C-RES, S 180-1/10W F
SFR51 87-024-197-010 SFR,1K H VZ066L3
SW1 87-A90-133-110 SW,LEAF LSA1120JAU
VR1 87-A91-581-110 VR,RTRY 20KBX1
FRONT C.B
SW401 87-A92-020-010 C-SW,SL 1-1-2LONG (NC)
88
A
Resistor Code
Chip Resistor Part Coding
Figure
Value of resistor
Chip resistor
Wattage Type Tolerance
1/16W
1/10W
1/8W
1608
2125
3216
5%
5%
5%
CJ
CJ
CJ
Form
LW t
1.6 0.8 0.45
2 1.25 0.45
3.2 1.6
108
118
128
: A
: A
CHIP RESISTOR PART CODE
0.55
Resistor Code
Dimensions (mm)
Symbol
1/16W 1005 5% CJ
1.0 0.5 0.35 104
Lt
W

DC JACK
<YH ONLY>
<Y ONLY>
<YH, YJ ONLY>
<YH, YJ ONLY>
<YH ONLY>
<Y, YJ ONLY>
<YH, YJ ONLY>
WIRING (MAIN)
32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
 4 
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
U

 5 
SCHEMATIC DIAGRAM (MAIN )

– 6 –
ADJUSTMENT
1. Tape Speed Adjustment
Settings : • Test tape : TTA - 100 (TAPE CENTER)
• Test point : PHONES JACK (J1)
• Adjustment location : SFR 51
• Volume : NON-CLIP (MAX - 10dB DOWN)
Method : Play back the test tape and adjust SFR 51 so that the
frequency is 3000 Hz ±10 Hz. Then confirm WOW is
less than 0.50%.
2. Head Azimuth Adjustment
Settings : • Test tape : TTA - 330 / 420 (TAPE CENTER)
• Test point : PHONES JACK (J1)
• Adjustment location : Head Azimuth Adjustment Screw
• Volume : NON-CLIP (MAX - 10dB DOWN)
Method : Play back the test tape and adjust the screw so that
the output becomes maximum and same phase.

– 7 –
MECHANICAL EXPLODED VIEW 1 / 1
– 7 –

– 8 –
MECHANICAL PARTS LIST 1 / 1
DESCRIPTIONREF. NO. KANRI
NO.
PART NO.
– 8 –
COLOR NAME TABLE
Basic color symbol Color Basic color symbol Color Basic color symbol Color
B Black C Cream D Orange
G Green H Gray L Blue
LT Transparent Blue N Gol P Pink
R Re S Silver ST Titan Silver
T Brown V Violet W White
WT Transparent White Y Yellow YT Transparent Yellow
LM Metallic Blue LL Light Blue GT Transparent Green
LD Dark Blue DT Transparent Orange GM Metallic Green
YM Metallic Yellow DM Metallic Orange PT Transparent Pink
LA Aqua Blue GL Light Green
1 8B-HRM-010-010 COVER, LIDCASS BLU
2 8B-HKB-004-010 LID,CASS BLU YZ<[L]Y>
2 8B-HKB-010-010 LID,CASS DBLU YZ<[LD]Y>
2 8B-HKB-020-010 LID,CASS GRE YZ<[G]Y>
2 8B-HKB-015-010 LID,CASS RED YZ<[R]Y>
3 86-HRM-205-010 SPR-T,CLICK
4 8B-HRL-208-010 SPR-P,CASS
5 8B-HRM-201-010 PLATE,HEAD BLU
6 8B-HRM-016-010 BTN,PLAY BLU
7 8B-HRM-202-010 PLATE,BTN BLU
8 8B-HRM-011-010 FRAME,CENTER BLU
9 8B-HKA-201-010 BAT-CONTACT,(+)
10 8Z-HKA-201-110 HLDR,JACK
11 8Z-HKA-205-010 BAT-CONTACT,(-)
12 8B-HKB-008-010 LID,BATT BLU<[L]Y>
12 8B-HKB-013-010 LID,BATT DBLU<[LD]Y>
12 8B-HKB-025-010 LID,BATT GRE<[G]Y>
12 8B-HKB-018-010 LID,BATT RED<[R]Y>
13 8B-HKB-007-010 CABI,REAR BLU YZ<[L]Y>
13 8B-HKB-012-010 CABI,REAR DBLU YZ<[LD]Y>
13 8B-HKB-027-010 CABI,REAR GRE YZ<[G]Y>
13 8B-HKB-017-010 CABI,REAR RED YZ<[R]Y>
A 87-067-815-110 VT+1.4-3(HL)
B 87-067-384-010 SCREWVT1.4-3.5HL
C 87-264-525-310 SCREW, V+1.7-2.5

– 9 –
TAPE MECHANISM EXPLODED VIEW 1 / 1
A
23
25
1
22
27
10
5
24
28
29
21
20
19
18
16
2
3
4
17
26
6
15
11
7
9
8
12
13
14
FRAME,CENTER

– 10 –
TAPE MECHANISM PARTS LIST 1 / 1
DESCRIPTIONREF. NO. KANRI
NO.
PART NO.
1 84-ZM2-072-010 LEVER,PLAY DENT
2 84-ZM2-211-110 GEAR,CONNECT
3 84-ZM2-222-110 SPR-T,PLAY
4 84-ZM2-075-010 LEVER,STOP DENT
5 84-ZM2-216-210 REEL TABLE,R
6 84-ZM2-073-010 LEVER,FF DENT
7 84-ZM2-223-110 SPR-T,REW STOP
8 84-ZM2-232-310 BELT,MAIN
9 09-001-421-010 FLY-WHL,P ASSY
10 84-ZM2-228-310 SPR-C,BT
11 84-ZM2-220-110 BRG,P
12 84-ZM2-210-210 GEAR,AUTO
13 84-ZM2-218-110 CAP,GEAR AUTO
14 84-ZM2-208-510 LEVER,SHIFT
15 84-ZM2-224-110 SPR-T,FF LOCK
16 84-ZM2-207-310 LEVER,AUTO
17 84-ZM2-206-410 LEVER,LOCK
18 84-ZM2-219-010 PULLEY,MOTOR
19 87-A91-379-010 MOT,BCY3B-13
20 84-ZM2-226-510 SPR-C,CLUTCH
21 84-ZM2-212-010 GEAR,CLUTCH
22 84-ZM2-233-210 ROLLER ASSY,PINCH
23 84-ZM2-227-310 SPR-C,AZIMUTH
24 84-ZM2-225-010 SPR-T,AUTO FIND
25 87-A91-458-010 HEAD,AP 4211TA
26 84-ZM2-074-010 LEVER,REW DENT
27 84-ZM2-215-110 REEL TABLE,L
28 84-ZM2-217-210 SHAFT,REEL
29 84-ZM2-231-110 FELT,CLUTCH
A 84-ZM2-252-010 S-SCREW,AZI-2-6.4 C