Sony TA-AV661 Service Manual ▷ View online
— 12 —
• IC401 SYSTEM CONTROL (µPD78043AGF-033-3B9)
Pin No.
1–7
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
33
34
35
36
37
38
39
40
41
42
43
44
45
46, 47
48
49
50
51
52
53–70
71
72–80
Pin Name
10G–16G
+5V
REC-TAPE
REC-V1
REC-V2
WOOFER ON/OFF
WOOFER PHASE
CLK
DATA
CE. P/D
RESET
SPE-A
SPE-B
G
EQ. CLK
V-A
V-B
MODEL
SPE-2
SPE-1
KEY-1, KEY-2
+5V
VREF +5V
STOP
XT2
G
X1
X2
W-MUT
S-MUT
C-MUT
F-MUT
LED-D
LED-S
LED-H
C/R. RY
SIRCS
P-RY
VR-A, VR-B
G
V-C
CE FUNC
CE VR
+5V
P1–P18
–30V
1G–9G
I/O
O
—
O
O
O
O
O
O
O
O
I
O
O
—
O
O
O
I
I
I
I
—
—
I
I
—
I
O
O
O
O
O
O
O
O
O
I
O
I
—
O
O
O
—
O
—
O
Serial data output.
Spectrum analyzer band select output.
Video output select signal output.
Power ON reset input.
Not used.
Ground
X’tal (5 MHz).
Mute control output.
LED drive signal output.
Not used.
SIRCS signal input.
Main power supply relay drive signal output.
Volume encoder signal input.
Ground
Video output select signal output.
Chip enable signal output (for IC102).
Chip enable signal output (for IC112–114).
+5V
FL segment signal output.
–30V for FL
FL grid signal output.
• Abbreviation
FL: Fluorescent Indicator Tube
Destination detection setting input.
Spectrum analyzer input (2.5 kHz, 6.3 kHz, 16 kHz, WOOFER)
Spectrum analyzer input (63 Hz, 160 Hz, 400 Hz, 1 kHz)
Key matrix input.
Ground
Clock signal output (for IC123).
Reset signal input.
Function
FL grid signal output.
+5V
Audio output select signal output.
Woofer ON/OFF signal output.
Woofer phase control signal output.
Serial clock output.
+5V
2-4. IC PIN FUNCTION
— 21 —
SECTION 3
EXPLODED VIEWS
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.
• The mechanical parts with no reference number in
the exploded views are not supplied.
• Hardware (# mark) list and accessories and pack-
ing materials are given in the last of this parts list.
3-1. FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
4-980-107-01 KNOB (VOL)
2
3-350-426-01 SPRING, RING
3
4-977-358-11 CUSHION (8X12.5)
4
4-979-937-11 FILTER
5
4-979-942-21 WINDOW
6
4-979-937-01 FILTER
7
4-963-404-21 EMBLEM (5-A), SONY
8
4-979-934-11 PANEL, FRONT
* 9
4-982-462-01 HOUSE, LED
10
4-980-108-01 BUTTON (PRE)
11
4-979-930-01 BUTTON (F-8)
12
4-979-931-01 INDICATOR
13
4-979-936-01 BUTTON (P-T)
* 14
A-4389-305-A DISP BOARD, COMPLETE
* 15
4-921-941-01 CUSHION (FL)
* 16
4-971-014-11 HOLDER, FL TUBE
17
1-769-867-11 WIRE (FLAT TYPE) (5 CORE)
18
4-951-620-01 SCREW (2.6X8), +BVTP
19
1-773-286-11 WIRE (FLAT TYPE) (29 CORE)
* 20
1-661-167-11 VR BOARD
21
3-704-366-01 SCREW (CASE) (M3X8)
* 22
4-982-682-01 CASE (414532)
23
4-979-932-01 ESCUTCHEON (V)
FL401
1-517-513-11 INDICATOR TUBE, FLUORESCENT
1
2
3
5
7
8
10
11
12
12
13
14
15
16
17
18
19
20
21
21
21
#1
#1
FL401
15
6
9
9
4
Supplied with RV401
22
23
The components identified by mark
!
or dotted line with mark
! are critical
for safety.
Replace only with part number
specified.
Replace only with part number
specified.
— 22 —
3-2. BACK PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 52
1-659-607-11 VIDEO 4 BOARD
* 53
A-4389-312-A EQ BOARD, COMPLETE
* 54
1-661-163-11 REAR SP BOARD
* 55
1-659-613-11 VIDEO BOARD
* 56
4-979-954-52 PANEL, BACK
* 57
3-703-244-00 BUSHING (2104), CORD
58
3-704-515-01 SCREW (BV/RING)
! CNP901 1-690-609-21 CORD, POWER
The components identified by mark
!
or dotted line with mark
! are critical
for safety.
Replace only with part number
specified.
Replace only with part number
specified.
56
57
CNP901
#1
#1
#1
#1
54
#1
#1
58
#1
#1
55
53
not supplied
52
— 23 —
3-3. CHASSIS SECTION
#1
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
* 101
4-979-946-01 PLATE (432), BOTTOM
102
X-3371-405-1 FOOT (SMALL) ASSY
* 103
1-661-168-11 HP BOARD
* 104
1-661-166-11 T-2 BOARD
* 105
1-661-165-11 T-1 BOARD
106
1-769-867-11 WIRE (FLAT TYPE) (5 CORE)
* 107
1-661-164-11 POWER BOARD
* 108
A-4389-302-A MAIN BOARD, COMPLETE
109
1-773-286-11 WIRE (FLAT TYPE) (29 CORE)
! F904
1-533-310-11 FUSE, GLASS TUBE (6.3A 125V)
! F905
1-533-310-11 FUSE, GLASS TUBE (6.3A 125V)
! F906
1-533-310-11 FUSE, GLASS TUBE (6.3A 125V)
! F907
1-533-310-11 FUSE, GLASS TUBE (6.3A 125V)
! T901
1-429-458-11 TRANSFORMER, POWER
101
102
103
104
105
108
109
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#2
#3
not supplied
not supplied
not supplied
not supplied
not supplied
not supplied
106
#1
#1
T901
#2
107
F905
F906
F907
F904
#1
#1
The components identified by mark
!
or dotted line with mark
! are critical
for safety.
Replace only with part number
specified.
Replace only with part number
specified.
Click on the first or last page to see other TA-AV661 service manuals if exist.