Sony MHC-SV7AV / TA-SV7AV Service Manual ▷ View online
8
TA-SV7AV
[GC Test Mode]
Enter the GC Test Mode
Procedure 1:
1. Press the
1. Press the
I
/1
button to turn the power on.
2. While pressing the both
[STEREO/MONO]
*
1
and
[CINEMA
STUDIO C]
buttons, press the
[CLOCK/TIMER]
*
1
button.
3. LEDs and fluorescent indicator tube are all turned on of all
units.
Procedure 2:
1. Press the
1. Press the
I
/1
button to turn the power on.
2. While pressing the both
[PLAY MODE]
*
2
and
x
*
2
buttons,
press the
Z
(DISC 1) *
2
button.
3. LEDs and fluorescent indicator tube are all turned on of all
units.
Version Display Mode
Procedure:
1. Enter the GC test mode.
2. Each time the
1. Enter the GC test mode.
2. Each time the
[TUNER MEMORY]
*
1
or
[DISC 1]
*
2
button is
pressed, microcomputer or mechanism deck version is dis-
played of each unit.
played of each unit.
3. Press the
[TUNING +]
*
1
or
[DISC 3]
*
2
button to detail is
displayed the version.
Key Check Mode
Procedure:
1. Enter the GC test mode.
2. Press the
1. Enter the GC test mode.
2. Press the
[TUNING --]
*
1
or
[DISC 2]
*
2
button to set the key
check mode.
3. In the key check mode, the fluorescent indicator tube displays
“K 0 J 0 V 0”. Each time a button is pressed, “K” value in-
creases. However, once a button is pressed, it is no longer taken
into account.
“J” value increases like 1, 2, 3 ... if turn the
creases. However, once a button is pressed, it is no longer taken
into account.
“J” value increases like 1, 2, 3 ... if turn the
[FILE SELECT]
knob clockwise, or it decreases like 0, 9, 8 ... if turn the JOG
dial counterclockwise.
“V” value increases like 1, 2, 3 ... if turn the
dial counterclockwise.
“V” value increases like 1, 2, 3 ... if turn the
[VOLUME]
knob
clockwise, or it decreases like 0, 9, 8 ... if turn the JOG dial
counterclockwise.
counterclockwise.
Releasing the GC Test Mode
To release from this mode, press three buttons in the same manner
as entering this mode or disconnect the power cord.
as entering this mode or disconnect the power cord.
SECTION 4
TEST MODE
Note:
Use following buttons in the test mode.
no mark : Button of amplifier unit (TA-SV7AV)
*1
no mark : Button of amplifier unit (TA-SV7AV)
*1
: Button of tuner unit (ST-SV7)
*2
: Button of CD unit (MCE-SV7)
[MC Test Mode]
Enter the MC Test Mode
1. Press the
I
/1
button to turn the power on.
2. While pressing the both
[STEREO/MONO]
*
1
and
[CINEMA
STUDIO C]
buttons, press the
[CINEMA STUDIO A]
button.
3. “GROOVE” indication blinks on the fluorescent indicator tube
in the midst of MC test mode.
4. This mode has two modes (mode 1/mode 2).
5. To change the modes, press three buttons in the same manner
5. To change the modes, press three buttons in the same manner
as entering this mode (step 2). Each time the step 2 operation
is repeated, it changes modes alternately.
is repeated, it changes modes alternately.
6. To distinguish the mode, turn the
[VOLUME]
knob clockwise
or counterclockwise. Then display is shown as follows.
Mode 1: only “MIN” or “MAX”
Mode 2: “MIN”, “1 to 30” or “MAX”
Mode 2: “MIN”, “1 to 30” or “MAX”
AMP Test Mode
In the AMP test mode, it operates as follows.
•
•
[VOLUME]
knob is turned, it changes display as follows.
Counterclockwise : VOLUME MIN
Clockwise
Clockwise
: VOLUME MAX
•
[FILE SELECT]
knob is turned, it changes speaker output mode
as follows.
Display of each mode:
Display of each mode:
Details of each mode:
Mode 1 : L-CH : front L-CH
R-CH : front R-CH
Mode 2 : L-CH : rear L-CH
R-CH : rear R-CH
Mode 3 : L-CH : front L-CH, rear L-CH, center
R-CH : front R-CH, rear R-CH, sub woofer
(no LFE, “EQ” indication does not light up on the fluorescent
indicator tube of tuner unit)
Mode 4 : L-CH : front L-CH, rear L-CH, center
indicator tube of tuner unit)
Mode 4 : L-CH : front L-CH, rear L-CH, center
R-CH : front R-CH, rear R-CH, sub woofer
(LFE on, “EQ” indication lights up on the fluorescent indica-
tor tube of tuner unit)
Mode 5 : L-CH : center
tor tube of tuner unit)
Mode 5 : L-CH : center
R-CH : sub woofer
Releasing the MC Test Mode
To release from this mode, press the
I
/1
button or disconnect the
power cord.
Mode No.
Display
1
L: L
R: R
2
L: SL
R: SR
3
L: LSLC
R: RSRW
4
L: LSLC
R: RSRW
5
L: C
R: W
10
TA-SV7AV
SECTION 5
DIAGRAMS
5-1.
NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
B
These are omitted.
C
E
Q
Note on Printed Wiring Boards:
•
•
X
: parts extracted from the component side.
•
Y
: parts extracted from the conductor side.
•
f
: internal component.
•
: Pattern from the side which enables seeing.
• Indication of transistor.
Note on Schematic Diagram:
• All capacitors are in
• All capacitors are in
µ
F unless otherwise noted. pF:
µµ
F
50 WV or less are not indicated except for electrolytics
and tantalums.
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
f
: internal component.
•
2
: nonflammable resistor.
•
5
: fusible resistor.
•
C
: panel designation.
•
A
: B+ Line.
•
B
: B– Line.
• Voltages are dc with respect to ground under no-signal
conditions.
no mark : Power on
no mark : Power on
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
tion tolerances.
• Signal path.
F
: AUDIO
N
: MIC
• Abbreviation
EA
: Saudi Arabia model
SP
: Singapore model
TH
: Thailand model
Note: The components identified by mark
0
or dotted line
with mark
0
are critical for safety.
Replace only with part number specified.
• Circuit Boards Location
AC OUTPUT board
SURROUND AMP board
SUB TRANS board
AC INPUT board
RELAY board
FRONT AMP board
PANEL board
TA-SV7AV
11
11
5-2.
PRINTED WIRING BOARDS – FRONT AMP Section –
•
See page 10 for Circuit Boards Location.
TM101
TM102
NO109
CN113
JW142
CN103
IC801
CN108
D911
D951
JW
49
JW12
C951
C952
C927
C953
R952
IC924
LP902
CN105
CN104
JW150
JW
71
C861
C955
C912
C911
C956
JW3
R951
JW139
R953
JW143
JW138
R954
EPT901
JW141
D881
R835
R831
R815
JW
179
JW
108
Q871
Q881
R883
R885
R974
R887
R839
R837
R838
JW39
RY881
JW26
R896
R814
C837
D831
C854
JW163
JW
30
R894
JW148
C987
C916
C917
R889
D998
D993
D991
D992
D990
C991
C1100
D923
JW
28
Q894
JW187
JW196
R907
C857
JW40
C1103
JW197
R911
R903
Q893
Q897
R897
C893
R906
R898
Q895
JW
2
Q892
R895
JW
123
JW95
R804
R807
JW78
Q891
Q896
Q851
JW
115
JW
113
D994
D995
D997
D996
D924
C994
C925
CN107
JW
41
JW
116
JW
182
JW16
JW15
R908
D980
C1101
R881
C863
JW
183
JW
38
JW
101
CN106
R904
JW177
Q821
C891
R826
R876
JW
198
R825
C993
R875
C992
JW
20
JW
44
R821
C821
JW
186
JW17
R910
C871
JW
120
R827
R877
R878
D871
R879
R880
C872
JW
74
JW18
JW
126
JW165
C919
C920
JW180
JW160
JW159
R917
JW155
JW157
R918
JW
50
JW161
R914
JW154
R913
R916
JW84
R923
JW158
R919
R920
JW173
JW156
JW195
R921
JW
6
JW164
JW190
JW
134
JW127
JW
105
JW169
JW85
JW
104
JW
103
R857
JW
107
JW
100
JW61
R963
R964
JW
59
R805
R968
JW
48
R851
C852
R852
C962
JW
184
Q902
C853
R801
C802
R802
C801
D801
R803
C803
JW
42
JW
52
C941
C806
C851
C963
R966
C892
R965
D963
JW82
JW87
JW86
JW89
JW90
JW91
JW92
JW93
JW94
JW96
Q883
R973
R809
R972
Q962
R971
R970
R969
Q963
EPT902
JW
56
JW176
R925
JW174
JW175
JW172
JW153
JW27
NO101
JW
136
JW162
JW
135
JW13
JW
73
R871
C1036
JW192
R855
JW
68
JW140
Q961
JW
72
JW
102
C807
JW60
D802
JW
133
JW
117
JW
106
R854
Q903
JW99
R967
JW81
JW66
JW
51
JW
114
C918
C804
JW131
R924
R926
R830
Q822
D821
JW130
R927
JW128
R856
D851
D973
JW
55
C856
D975
R892
Q801
R808
R859
R806
JW65
C811
JW63
JW
57
C812
R905
D970
D972
D971
JW
185
JW
191
D974
JW
7
JW10
JW11
JW147
JW9
C964
R853
C862
C865
JW
29
JW
69
JW152
JW
80
JW
58
JW19
JW181
JW
31
C914
C926
R858
JW
8
JW
53
JW193
JW67
JW
111
R891
JW88
JW146
JW881
JW62
JW149
JW
122
JW
35
R915
R912
JW170
JW97
JW64
D981
C915
JW151
JW
36
JW
1
JW
54
C864
JW
75
C1037
JW
83
JW
119
JW145
JW132
C924
JW
79
D925
JW194
JW
21
JW
76
JW
32
JW70
C1102
JW
22
JW178
JW166
JW
43
C954
JW
45
JW
37
R991
JW47
JW
46
JW189
D926
R992
JW
34
JW167
C990
JW188
JW98
Q904
JW125
C961
JW168
NO102
JW
199
IC310
IC923
CN110
CN111
CN112
JW602
JW603
JW601
R836
C809
C833
R833
L832
C836
C831
C835
L833
R834
C832
C834
L831
R862
C859
C808
L811
L861
R861
C858
R832
R811
FRONT AMP BOARD
E
E
3
1
3
1
1
5
–
+
–
+
–
+
L
L
R
CENTER SPEAKER
IMPEDANCE
USE 8 – 16
Ω
REAR SPEAKER
IMPEDANCE
USE 8 – 16
Ω
–
+
–
+
R
FRONT SPEAKER
IMPEDANCE
USE 6 – 16
Ω
SYSTEM CONTROL 1
FROM ST-SV7
A
SUB TRANS
BOARD
CN903
E
7
1
1
3
E
E
E
M
M1
(FAN)
E
AC OUTPUT
BOARD
CN915
F
AC OUTPUT
BOARD
CN914
E
E
E
E
E
E
E
E
E
E
E
E
E
(CHASSIS)
13
1
1
4
H
SURROUND AMP
BOARD
CN1002
J
SURROUND AMP
BOARD
CN1003
1-680-749-
D
PANEL BOARD
CN700
G
AC OUTPUT
BOARD
CN113
1
6
(CHASSIS)
SYSTEM CONTROL 2
FROM ST-SV7
RELAY BOARD
1-680-755-
2
1
2
1
A
B
C
D
E
F
G
H
I
J
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
11
(21)
11
(21)
(CHASSIS)
CLP1001
D801
H-7
D802
G-7
D821
I-10
D831
D-3
D851
H-7
D871
I-11
D881
D-3
D911
B-10
D923
H-3
D924
G-2
D925
G-2
D926
G-2
D951
B-12
D963
I-6
D970
H-3
D971
I-3
D972
I-4
D973
H-4
D974
H-3
D975
H-3
D980
J-2
D981
F-3
D990
H-2
D991
H-2
D992
H-2
D993
H-2
D994
H-3
D995
H-3
D996
H-3
D997
H-3
IC310
H-10
IC801
H-5
IC923
F-3
IC924
F-2
Q801
H-7
Q821
I-10
Q822
I-10
Q851
G-7
Q871
I-11
Q881
D-3
Ref. No.
Location
Ref. No.
Location
• Semiconductor Location
Ref. No.
Location
Ref. No.
Location
Q883
D-3
Q891
H-9
Q892
H-9
Q893
H-10
Q894
G-9
Q895
G-9
Q896
H-9
Q897
G-9
Q902
J-3
Q903
J-3
Q904
J-4
Q961
H-7
Q962
H-4
Q963
G-4
(Page 18)
(Page 18)
(Page 14)
(Page 14)
(Page
16)
(Page 18)
(Page 18)
TA-SV7AV
12
12
TP205
TP203
TP201
TP199
TP202
TP204
TP200
TP198
TP197
TP196
TP195
TP194
TP193
TP192
TP191
TP190
TP189
TP188
TP187
TP186
TP185
TP184
TP183
TP182
TP181
TP180
TP179
TP178
TP176
TP177
TP175
TP174
TP173
TP172
TP171
TP170
TP169
TP168
TP165
TP164
TP163
TP162
TP158
TP157
TP156
TP155
TP154
TP153
TP152
TP151
TP150
TP149
TP148
TP147
TP146
TP145
TP144
TP143
TP142
TP159
TP160
TP161
TP141
C1100
C1102
C1101
C927
R919
R920
R918
R917
R912
R911
R913
R915
R921
R914
R916
R923
IC923
D994
D995
D997
D996
D923
C992
D990
D991
D993
D992
C993
D924
IC924
C994
C990
C991
C925
C926
D980
D981
C1103
D
97
2
D
97
1
D
97
0
D
97
3
D
97
4
D
97
5
CN107
NO109
CN106
CN105
TP166
TP167
R905
R904
R903
R907
R906
D821
Q822
C872
R880
R878
R825
R875
R826
R876
C871
R877
C924
TP251
TP250
C917
C916
C920
C918
C919
R992
R991
R908
C914
D925
D926
TP256
R910
TP255
TP252
TP253
R927
R926
R925
R924
TP254
C915
CN113
D998
R830
C821
R879
D871
R827
Q821
Q871
C941
Q904
CN112
CN111
CN110
IC310
Q903
Q902
CLP1001
CN104
R821
R871
M1
0.1
0.1
0.1
100
10V
10V
330
330
330
330
100
100
47k
47k
330
100
100
1k
NJM78L12A-T3
11ES2-NTA2
B
11ES2-NTA2
B
11ES2-NTA2
B
11ES2-NTA2
B
11ES2
0.1
11ES2-NTA2
B
11ES2-NTA2
B
11ES2-NTA2
B
11ES2-NTA2
B
470
16V
16V
11ES2
NJM78L05A-T3
220
10V
10V
0.1
330
25V
25V
10
50V
100
16V
16V
11ES2-NTA2
B
11ES2-NTA2
B
0.1
11ES
2
-N
TA
2B
11ES2
-N
TA
2B
11ES
2
-N
TA2B
11ES
2
-N
TA
2B
11ES
2
-N
TA
2B
11ES
2
-N
TA
2B
20P
5P
14P
3P
2.2k
100k
10k
2.2k
1k
1SS133T-72
BN1F4M
0.47
50V
1M
4.7k
56
56
1k
1k
4.7
100V
22k
0.001
100p
100p
0.1
0.1
10
50V
1k
1k
2.2k
1
50V
1SS133T
-72
1SS133T
-72
100
47k
10k
47k
47k
100p
5P
4.7
100V
100k
1SS133T-72
22k
2SC2878
2SC2878
0.1
2SC2001
5P
14P
19P
PT8300-S
2SB1116
2SC2785
25P
680
2W
680
2W
(FAN)
1
2
3
4
6
7
8
9
10
11
VOL-A
VOL-A
VOL-B
KEY0
KEY0
PWR-KEY
PWR-KEY
CLK
LAT
VOL-B
LAT
CLK
JOG1-B
JOG1-A
JOG2-B
JOG2-A
JOG2-B
JOG2-A
JOG1-B
JOG1-A
MIC-SIG
MIC-SIG
AC1
AC2
RE
RE
AC1
AC2
Z1
Z2
Z3
Z4
Z5
Z6
Z7
Z2
Z3
Z10
Z10
Y6
Y7
Y8
X1
X2
X3
X4
X5
X6
X7
X1
X2
X3
X4
X5
X6
X7
X8
X8
X9
X10
X10
X11
X12
X13
D-I
D-I
D-O
D-O
T1
T2
T3
T4
Z3
Z2
KEY0 TA
POWER KEY
FRONT-GND
CENTER-GND
MIC-SIG
MIC-GND
S-GND
DBFB FEEDBACK
EXP-CLK
EXP-LAT
EXP-OUT DATA
EXP-IN DATA
LED-BLUE
VOL3-A
VOL3-B
HP-SW
HP-L
HP-R
D GND
HP-GND
POWER KEY
KEY0
LED-POWER
LED-SUR
LED-EQ
LED-DCS_A
LED-DCS_B
LED-DCS_C
JOG1-A
JOG1-B
JOG2-A
JOG2-B
STBY RELAY
RELAY-UNREG
DGND
SUB-AC
SUB-AC
FAN+
FAN-
VF
VF
VOLA
VOLB
D-GND
AC LOW
AC LOW
AC HIGH
AC HIGH
VP
CT
EVER+5V
M(A)-GND
CT
AGND for BLUE LED
SR-IN
SL-IN
CENTER-IN
FR-IN
FL-IN
JOG2-B(FIELD SELECT)
JOG2-A(FIELD SELECT)
JOG1-B(FUNCTION)
JOG1-A(FUNCTION)
REG GND
D+5.7V
CHASSIS
MIC
EVER+5V
MIC GND
+12V
(1/2)
SYSTEM CONTROL 1
Q902,903
FAN MOTOR
DRIVE
NC
REGULATOR
O
G
I
O
G
I
+12V REGULATOR
SYSTEM
CONTROLLER
MUTING
CONTROL
MUTING
Q821,871
+5.6V REGULATOR
KEY0 TA
POWER KEY
FRONT-GND
CENTER-OUT
CENTER-GND
MIC-SIG
MIC-GND
FR-OUT
FL-OUT
SR-OUT
SL-OUT
S-GND
DBFB FEEDBACK
EXP-CLK
EXP-LAT
EXP-OUT DATA
EXP-IN DATA
KEY0 TA
POWER KEY
FRONT-GND
CENTER-GND
MIC-SIG
MIC-GND
S-GND
DBFB FEEDBACK
EXP-CLK
EXP-LAT
EXP-OUT DATA
EXP-IN DATA
CHASSIS
CHASSIS
SR-IN
SL-IN
CENTER-IN
FR-IN
FL-IN
SYSTEM CONTROL 2
NC
(CHASSIS)
FROM ST-SV7
FROM ST-SV7
5-3.
SCHEMATIC DIAGRAM – FRONT AMP Section (1/2) –
(Page 19)
(Page 17)
(Page 13)
Click on the first or last page to see other MHC-SV7AV / TA-SV7AV service manuals if exist.