Sony TA-FB920R Service Manual ▷ View online
– 21 –
– 22 –
TA-FB920R
3-9. PRINTED WIRING BOARD – POWER SECTION –
• See page 5 for Circuit Boards Location.
(Page 14)
(Page 13)
– 23 –
– 24 –
3-11. IC PIN FUNCTION
• IC902 Input Control & LED Drive (TMP47C103N-JP47)
O
I
I
I
O
O
I
I
I
I
O
O
O
—
O
O
O
O
O
I
I
I
O
O
O
O
I
—
1
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
X OUT
X IN
RESET
PMD
VOL +
VOL –
SW 0
SW 1
SW 2
EON
PHONO
TUNER
CD
GND
AUX
MD/DAT
TAPE
MON
PRY
PKY
MOI
SIRCS
MUTE
SCE
SDT
SCK
STOP
+3V
System clock (4MHz)
Reset input
Mode select input (Connected to ground)
Motor drive output (+)
Motor drive output (–)
Rotary switch input (CD)
Rotary switch input (TUNER)
Rotary switch input (PHONO)
EON signal input
PHONO LED drive output
TUNER LED drive output
CD LED drive output
Ground
AUX LED drive output
TAPE “2” LED drive output
TAPE “1” LED drive output
MONITOR output (Connected to ground)
Power relay output
Power key input (Connected to ground)
MONITOR input (Connected to ground)
SIRCS input
Muting output (Connected to ground)
Chip enble output (Connected to ground)
Serial data output (Connected to ground)
Serial clock output (Connected to ground)
STOP input
+3V Power supply
I/O
Function
Pin No.
Pin Name
3-10. IC BLOCK DIAGRAMS
• Main section
IC700 uPC1237HA
1
2
3
4
5
6
7
8
OVER LOAD DET
F/F
OFFSET DET
LATCH/
AUTORESET
V
CC
ON
MUTE
AC OFF
DET
V
CC
• Panel section
IC901 BA6208
1
2
3
4
5
6
7
8
9
NC
OUTPUT 2
Vcc
GND
NC
INPUT 2
INPUT 1
NC
MOTOR
DRIVE
MOTOR
DRIVE
REG
SWITCH
SWITCH
OUTPUT1
– 25 –
SECTION 4
EXPLODED VIEWS
4-1. CASE AND BACK PANEL SECTION
NOTE:
• Items marked “*” are not stocked since they are
seldom required for routine service. Some delay
should be anticipated when ordering these items.
should be anticipated when ordering these items.
• Color Indication of Appearance Parts Example:
KNOB, BALANCE (WHITE)
Â
Cabinets color
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and packing
materials are given in the last of this parts list.
• Abbreviation
G
: German model
EE
: East European model
SP
: Singapore model
MY
: Malaysia mdoel
AUS : Australian model
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
* 10
3-703-244-00 BUSHING (2104), CORD
!
11
1-777-185-11 CORD, POWER
!
12
1-770-019-11 ADAPTOR, CONVERSION PLUG 3P (UK)
13
4-210-291-01 SCREW (CASE 3 TP2)(AEP,G,EE,MY,SP,AUS)(BLACK)
13
4-210-291-11 SCREW (CASE 3 TP2)(AEP,G,EE,MY,SP,AUS)(SILVER)
13
4-999-877-01 SCREW (CASE)(UK)
14
4-947-010-01 SCREW, FEEDER FIXED
15
3-704-515-41 SCREW (BV/RING)
16
4-967-961-01 SCREW (3X8)
* 17
1-669-476-11 DUTLET BOARD (AEP,G,EE,MY,SP,AUS)
!
CNJ3
1-526-794-11 OUTLET, AC (AC OUTLET)(AEP,G,EE,MY,SP,AUS)
!
CNJ4
1-526-794-11 OUTLET, AC (AC OUTLET)(AEP,G,EE,MY,SP,AUS)
1
X-4949-780-1 KNOB (SELECTOR) ASSY (BLACK)
1
X-4950-264-1 KNOB (SELECTOR) ASSY (SILVER)
2
X-4949-781-1 KNOB (VOLUME) ASSY (BLACK)
2
X-4950-265-1 KNOB (VOLUME) ASSY (SILVER)
* 4
4-999-439-01 CASE (413235)(BLACK)
* 4
4-999-439-41 CASE (413235)(SILVER)
5
X-4949-760-1 FOOT ASSY
6
4-970-124-01 CUSHION (F50180S)
* 7
A-4407-615-A PHONO BOARD, COMPLETE
(AEP,G,EE,MY,SP,AUS)
* 7
A-4407-775-A PHONO BOARD, COMPLETE (UK)
* 8
4-999-451-01 PANEL, BACK (AEP,G,EE,MY,SP,AUS)
* 8
4-999-451-41 PANEL, BACK (UK)
13
13
16
12
11
8
10
15
14
15
15
16
16
4
13
13
not supplied
not supplied
7
16
16
5
6
#3
#3
5
6
1
2
17
CNJ3
CNJ4
– 26 –
4-2. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-999-407-01 DOOR (BLACK)
51
4-999-407-11 DOOR (SILVER)
52
4-900-031-01 KNOB (DOOR)(BLACK)
52
4-900-031-11 KNOB (DOOR)(SILVER)
53
4-900-032-01 CUSHION (DOOR-L)
54
4-900-058-01 ARM (DOOR/R)(BLACK)
54
4-900-058-11 ARM (DOOR/R)(SILVER)
55
4-999-408-01 ARM (DOOR)(BLACK)
55
4-999-408-11 ARM (DOOR)(SILVER)
* 56
4-999-492-01 CUSHION (DOOR)(BLACK)
* 56
4-999-492-11 CUSHION (DOOR)(SILVER)
57
4-942-568-41 EMBLEM (NO.5), SONY (BLACK)
57
4-942-568-51 EMBLEM (NO.5), SONY (SILVER)
58
4-965-651-01 EMBLEM (MOS)(BLACK)
58
4-965-651-11 EMBLEM (MOS)(SILVER)
59
4-999-413-01 INDICATOR (PROTECTION)
60
4-980-776-01 WINDOW, REMOTE CONTROL
61
4-967-961-01 SCREW (3X8)
62
4-999-402-01 PANEL, FRONT (BLACK)
62
4-999-402-11 PANEL, FRONT (SILVER)
63
X-4949-779-1 BASE ASSY, PANEL (BLACK)
63
X-4950-263-1 BASE ASSY, PANEL (SILVER)
64
4-999-414-01 SPRING (DOOR), LEAF
65
4-999-436-01 BUTTON (DIA. 6X29.8)(BLACK)
65
4-999-436-11 BUTTON (DIA. 6X29.8)(SILVER)
* 66
4-999-404-01 PLATE (DOOR), INDICATION (BLACK)
* 66
4-999-404-11 PLATE (DOOR), INDICATION (SILVER)
67
3-024-055-01 BUTTON (POWER)
68
4-999-406-01 KNOB (D18)(BLACK)
68
4-999-406-11 KNOB (D18)(SILVER)
69
4-980-773-01 BUTTON (DIA. 6)(BLACK)
69
4-980-773-11 BUTTON (DIA. 6)(SILVER)
70
4-950-189-01 KNOB (A)(VOL)(BLACK)
70
4-950-189-31 KNOB (A)(VOL)(SILVER)
* 72
1-670-219-11 SIRCS SUB BOARD
* 73
1-669-490-11 SIRCS BOARD
!
S1
1-554-920-61 SWITCH, PUSH (AC POWER)(1 KEY)(U)
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified.
line with mark ! are critical for safety.
Replace only with part number specified.
57
58
61
62
59
59
55
51
52
53
61
56
54
64
66
65
70
69
68
69
73
61
67
61
72
63
64
#2
S1
#2
#1
#2
61
60
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