MHC-SV7AV, TA-SV7AV - Sony Audio Service Manual (repair manual). Page 17

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TA-SV7AV
18
18
5-10. PRINTED  WIRING  BOARDS  – POWER Section –
 See page 10 for Circuit Boards Location.
JW906
F913
JW901
CN913
CN915
F934
JW961
F933
F932
F931
F937
CN914
JW938
JW930
JW922
JW923
NO921
JW803
JW907
CN903
JW920
LP102
T901
POWER
TRANSFORMER
(SUB)
JW913
CN901
RY901
JW802
D901
Q901
R902
R901
JW801
JW903
JW805
C901
JW902
JW806
JW807
JW808
JW809
JW810
JW811
JW812
JW804
JW905
CN902
F935
F936
VOLTAGE SELECTOR
S901
230 – 240V T 220V T 120V
AC OUTPUT BOARD
AC INPUT BOARD
3
1
1
6
4
1
F
FRONT AMP
BOARD
NO101
G
FRONT AMP
BOARD
NO102
E
FRONT AMP
BOARD
NO101
1-680-754-
1
2
3
4
(TH)
1-680-752-
T911
POWER
TRANSFORMER
(MAIN)
2
2
3
4
1
1
(AC IN)
(TH)
SUB TRANS BOARD
1
E
5
A
FRONT AMP
BOARD
NO109
1-680-751-
11
(21)
11
(21)
11
(21)
(EA, SP)
(EA, SP)
(EA, SP)
(EA, SP)
(TH)
(TH)
(TH)
(TH)
(Page 11)
(Page 11)
(Page 11)
(Page 11)
TA-SV7AV
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19
JW905
JW913
JW907
RY901
D901
R902
R901
Q901
CN903
JW922
JW923
F931
F932
F933
F934
JW938
F937
CN915
CN914
CN913
T911
F936
F935
JW903
JW902
JW901
C901
JW906
F913
S901
T901
CN901
NO921
CN902
1SS133T
10k
100k
2SC2785
5P
T8AL
250V
T6.3AL
T6.3AL
250V
T8AL
250V
T4AL
250V
3P
4P
6P
T2.5AL
250V
T2.5AL
250V
0.01
250V
T5AL
250V
2P
STBY RELAY
RELAY-UNREG
DGND
SUB-AC
SUB-AC
POWER
TRANSFORMER
(SUB)
120/230
NEUTRAL
AC1
AC2
AC2
AC1
VF
VF
120/230
NEUTRAL
AC1-GND
AC2-GND
VP
AC3(LOW)
AC3(LOW)
AC4(HIGH)
AC4(HIGH)
(AC IN)
RELAY
DRIVE
POWER
TRANSFORMER
(MAIN)
(TH)
(TH)
(EA,SP)
(EA,SP)
(TH)
(TH)
4P
2P (TH)
(EA,SP)
230-240
220
(EA,SP)
(TH)
4P
2P (TH)
(EA,SP)
220
230-240
VOLTAGE SELECTOR
230-240V
120V
220V
(EA,SP)
5-11. 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.
(Page 13)
(Page 13)
(Page 13)
(Page 12)
TA-SV7AV
20
6-1.
COVER  SECTION
SECTION  6
EXPLODED  VIEWS
The components identified by
mark 
0 or dotted line with mark
0 are critical for safety.
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.
• 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.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
#4
#1
#1
#1
#1
#1
#1
#1
#1
#1
not supplied
Front panel section
2
2
1
5
M1
7
4
3
not supplied
not supplied
not supplied
1
1-773-210-11 WIRE (FLAT TYPE) (25 CORE)
2
3-363-099-21 SCREW (CASE 3 TP2)
3
4-232-336-11 COVER
4
4-233-558-21 PANEL (2CH/VCD), BACK (SP)
4
4-233-558-31 PANEL (2CH/VCD), BACK (EA)
4
4-233-558-41 PANEL (2CH/VCD), BACK (TH)
5
1-680-751-11 SUB TRANS BOARD
7
1-680-755-11 RELAY BOARD
M1
1-763-072-11 FAN, D. C.
• Abbreviation
EA
: Saudi Arabia model
SP
: Singapore model
TH
: Thailand model
20
6-2.
FRONT  PANEL  SECTION
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
51
51
53
52
54
59
56
supplied with S702
supplied with S703
supplied with S701
z
C
z
A
z
B
55
56
57
56
56
58
(including 
z
A, 
z
B, 
z
C)
51
4-232-342-01 KNOB (FUNC)
52
4-232-338-01 KNOB (VOL)
53
X-4953-680-1 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-4275-755-A PANEL BOARD, COMPLETE (EA, SP)
58
A-4726-288-A PANEL BOARD, COMPLETE (TH)
59
4-232-340-01 KNOB (MIC)

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