Sony MHC-S3 / TA-S3 Service Manual ▷ View online
TA-S3
17
17
5-8.
SCHEMATIC DIAGRAM – POWER Section –
The components identified by mark
0
or dotted
line with mark
0
are critical for safety.
Replace only with part number specified.
JW905
CN902
JW913
JW907
RY901
JW902
D901
CN901
JW903
C901
R902
R901
Q901
CN903
JW922
NO921
F934
JW938
F937
CN915
CN914
F936
F935
CN913
F931
T901
T911
2P
1SS133T
2P
0.01
250V
250V
10k
100k
2SC2785
5P
2P
T8AL 250V
T4AL 250V
3P
4P
T2.5AL
250V
T2.5AL
250V
5P
T8AL
250V
250V
STBY RELAY
RELAY-UNREG
DGND
SUB-AC
SUB-AC
POWER
TRANSFORMER
(SUB)
NEUTRAL
AC1
AC2
AC2
AC1
VF
VF
NEUTRAL
AC1-GND
AC2-GND
VP
AC3(LOW)
AC3(LOW)
AC4(HIGH)
AC4(HIGH)
(AC IN)
RELAY
DRIVE
POWER
TRANSFORMER
(MAIN)
230
230
(Page 13)
(Page 12)
(Page 12)
(Page 12)
TA-S3
18
18
5-9.
IC PIN FUNCTION DESCRIPTION
•
FRONT AMP BOARD IC310 PT8300-S (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
RESET_B
I
Reset signal input terminal Not used
3
CLK
I
Serial data transfer clock signal input from the tuner unit (ST-S3)
4
LATCH
I
Serial data latch pulse input from the tuner unit (ST-S3)
5
LED C
O
LED drive signal output of the 2CH/MULTI C indicator (D706) “L”: LED on
6
LED B
O
LED drive signal output of the MOVIE MODE B indicator (D705) “L”: LED on
7
LED A
O
LED drive signal output of the MUSIC MODE A indicator (D704) “L”: LED on
8
LED EQ
O
LED drive signal output of the EQ indicator (D703) “L”: LED on
9
LED SUR
O
LED drive signal output of the SUR indicator (D702) “L”: LED on
10
LED BLU
O
LED drive signal output of the MULTI CHANNEL DECODING indicator (D781)
“L”: LED on
“L”: LED on
11
HP SW
I
Headphone detection signal input terminal “H”: headphone on
12
PROTECT
I
Over load detection signal input for speaker output “L”: over load
13
LATCHO
O
Serial data latch pulse output terminal Not used (open)
14
CLKO
O
Serial data transfer clock signal output terminal Not used (open)
15
—
—
Not used (open)
16
—
—
Not used (fixed at “L”)
17
—
—
Not used (open)
18
MUTING
O
Muting on/off control signal output terminal “L”: muting
19
LED PW
O
LED drive signal output of the I/1 indicator (D701) “L”: LED on
20
SUR RY
O
Relay drive signal output for the surround speaker (rear and center) protection “H”: on
Not used (fixed at “H”)
Not used (fixed at “H”)
21
F RY
O
Relay drive signal output for the front speaker protection “H”: on
22
STK PW
O
Power amplifier on/off selection signal output terminal “L”: standby, “H”: on
23
—
—
Not used (open)
24
STBY RY
O
Standby relay drive signal output terminal “L”: standby, “H”: power on
25
DATA OUT
O
Serial data output to the tuner unit (ST-S3)
26
DATA IN
I
Serial data input from the tuner unit (ST-S3)
27
PULLUP
—
Not used (open)
28
VCC
—
Power supply terminal (+5V)
6-1.
COVER SECTION
SECTION 6
EXPLODED VIEWS
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list is given in the last of
the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
1-773-178-11 WIRE (FLAT TYPE) (23 CORE)
2
3-363-099-21 SCREW (CASE 3 TP2)
3
4-232-336-11 COVER
4
4-233-558-01 PANEL (2CH/VCD), BACK (AEP)
4
4-233-558-11 PANEL (2CH/VCD), BACK (UK)
5
1-680-751-11 SUB TRANS BOARD
6
1-763-072-11 FAN, D. C.
7
1-680-755-11 RELAY BOARD
#4
#1
#1
#1
#1
#1
#1
#1
#1
#1
not supplied
Front panel section
2
2
1
5
6
7
4
3
not supplied
not supplied
TA-S3
18
18
5-9.
IC PIN FUNCTION DESCRIPTION
•
FRONT AMP BOARD IC310 PT8300-S (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Description
1
VSS
—
Ground terminal
2
RESET_B
I
Reset signal input terminal Not used
3
CLK
I
Serial data transfer clock signal input from the tuner unit (ST-S3)
4
LATCH
I
Serial data latch pulse input from the tuner unit (ST-S3)
5
LED C
O
LED drive signal output of the 2CH/MULTI C indicator (D706) “L”: LED on
6
LED B
O
LED drive signal output of the MOVIE MODE B indicator (D705) “L”: LED on
7
LED A
O
LED drive signal output of the MUSIC MODE A indicator (D704) “L”: LED on
8
LED EQ
O
LED drive signal output of the EQ indicator (D703) “L”: LED on
9
LED SUR
O
LED drive signal output of the SUR indicator (D702) “L”: LED on
10
LED BLU
O
LED drive signal output of the MULTI CHANNEL DECODING indicator (D781)
“L”: LED on
“L”: LED on
11
HP SW
I
Headphone detection signal input terminal “H”: headphone on
12
PROTECT
I
Over load detection signal input for speaker output “L”: over load
13
LATCHO
O
Serial data latch pulse output terminal Not used (open)
14
CLKO
O
Serial data transfer clock signal output terminal Not used (open)
15
—
—
Not used (open)
16
—
—
Not used (fixed at “L”)
17
—
—
Not used (open)
18
MUTING
O
Muting on/off control signal output terminal “L”: muting
19
LED PW
O
LED drive signal output of the I/1 indicator (D701) “L”: LED on
20
SUR RY
O
Relay drive signal output for the surround speaker (rear and center) protection “H”: on
Not used (fixed at “H”)
Not used (fixed at “H”)
21
F RY
O
Relay drive signal output for the front speaker protection “H”: on
22
STK PW
O
Power amplifier on/off selection signal output terminal “L”: standby, “H”: on
23
—
—
Not used (open)
24
STBY RY
O
Standby relay drive signal output terminal “L”: standby, “H”: power on
25
DATA OUT
O
Serial data output to the tuner unit (ST-S3)
26
DATA IN
I
Serial data input from the tuner unit (ST-S3)
27
PULLUP
—
Not used (open)
28
VCC
—
Power supply terminal (+5V)
6-1.
COVER SECTION
SECTION 6
EXPLODED VIEWS
The components identified by
mark 0 or dotted line with mark
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Replace only with part number
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list is given in the last of
the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
1
1-773-178-11 WIRE (FLAT TYPE) (23 CORE)
2
3-363-099-21 SCREW (CASE 3 TP2)
3
4-232-336-11 COVER
4
4-233-558-01 PANEL (2CH/VCD), BACK (AEP)
4
4-233-558-11 PANEL (2CH/VCD), BACK (UK)
5
1-680-751-11 SUB TRANS BOARD
6
1-763-072-11 FAN, D. C.
7
1-680-755-11 RELAY BOARD
#4
#1
#1
#1
#1
#1
#1
#1
#1
#1
not supplied
Front panel section
2
2
1
5
6
7
4
3
not supplied
not supplied
19
TA-S3
6-2.
FRONT PANEL SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
4-232-342-01 KNOB (FUNC)
52
4-232-338-01 KNOB (VOL)
53
X-4953-618-1 PANEL ASSY, FRONT
54
4-232-341-01 SHEET (VOL)
55
4-232-343-01 BUTTON (ENTER)
56
4-951-620-01 SCREW (2.6X8), +BVTP
57
4-232-344-01 INDICATOR (BLUE)
58
A-4476-220-A PANEL BOARD, COMPLETE
51
51
53
52
54
supplied with S702
supplied with S703
supplied with S701
z
A
z
B
55
56
57
56
56
58
(including
z
A,
z
B)
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