Sony HCD-GN1200D / MHC-GN1200D Service Manual ▷ View online
HCD-GN1200D
HCD-GN1200D
29
29
7-3. BLOCK DIAGRAM – TAPE/TUNER Section –
ST-L
E
MAIN
SECTION
REC-OUT-L
D
MAIN
SECTION
TAPE
MECHANISM
BLOCK
32
A TRIG
DRIVE
R-CH
TU901
FM/AM TUNER UNIT
CN509
ANTENNA
ST-L
FM ANT
AM ANT
AM ANT
ST-R
TUNED
ST-DIN/MC-DOUT
ST-DOUT
ST-CLK
ST-CE
FM 75
COAXIAL
CAP M+
BTRGM+
ATRGM+
AHALF
BHALF
B PULSE
A PULSE
A PULSE
REC(FWD)
REC(REV)
CAPM-CONT
B-TRIG
A-TRIG
TC-RELAY
A-HALF
B-HALF
B-SHUT
A-SHUT
A-SHUT
REC BIAS
PB-A/B
ALC
REC-MUTE
TC-MUTE
AM
EQ OUT1
A
B
B
TUNED
ST-DOUT
MC-DIN (ST)
ST-CLK
ST-CE
MC-DIN (ST)
ST-CLK
ST-CE
34
28
27
26
24
21
52
55
56
54
71
90
89
89
91
47
53
48
47
53
48
B TRIG
DRIVE
49
CAP MOTOR
DRIVE
50
1
3
6
6
2
5
5
13
11
15
14
PB OUT1
TAI1
REC IN1
AIN1
BIN1
A/B
ALC ON/OFF
REC MUTE ON/OFF
MUTE ON/OFF
DECK A/B SELECT
PB/REC EQUALIZER AMP
IC301
Q340, 343
Q342, 345
Q341,344
SYSTEM CONTROL
(DVD/TAPE MECHANISM CONTROL)
IC401(3/6)
REC-OUT1
EQ
TC-PB-L
TEST
CONNECTOR
CN510
R-CH
R-CH
R
L
C
MAIN
SECTION
MUTE
Q106
MUTE DRIVE
Q509, 510
PB
HEAD
DECK-A
DECK-B
BIAS OSC
Q370
BIAS
TRAP
SWITCH
DRIVE
Q377, 379
SWITCH
DRIVE
Q382, 383
R-CH
R-CH
Q325, Q375
Q321, 322
Q381
L – CH
R – CH
R-CH
BIAS+9V
REC/PB
HEAD
ERASE
HEAD
Q378,380
T301
L – CH
R – CH
• R-CH is omitted due to same as L-CH.
: TAPE PLAY (DECK B)
: TAPE PLAY (DECK A)
: TUNER
: RECORD (DECK B)
• Signal Path
(Page 30)
(Page 30)
(Page 30)
HCD-GN1200D
HCD-GN1200D
30
30
7-4. BLOCK DIAGRAM – MAIN Section –
J201
J1102(2/2)
C
D
E
R-CH
VOLUME
CONTROL
CPU
INTERFACE
INPUT
SELECT
SWITCH
SWITCH
SURROUND OR
DPL BUFFER
MID/
BASS &
TREBLE
R-CH
R-CH
COMMAND
TOUT1
LINK-L
OUT1
VOLIN1
+
Q101
R-CH
R-CH
SPEANA
D +4V
L+R
(SPEANA)
A +9V
LIN
RIN
DBFB F/B
F-R
F-L
CENTER
SL
SR
SW OUT
+
+
+
INPUT SELECT SWITCH,
GRAPHIC EQUALIZER CONTROL,
ELECTRICAL VOLUME
IC101
SYSTEM CONTROL
IC401(4/6)
TC-L
VIDEO-L
ST-L
SAOUT
DATA
CLK
BB-A1
BB-B1
SWOUT
REC-OUT-L
R-CH
TC-PB-L
TAPE/TUNER
SECTION
TAPE/TUNER
SECTION
ST-L
VOL IC DATA
VOL IC CLK
LINE MUTE
AUDIO IC DATA
AUDIO IC CLK
R-CH
LINE-MUTE
L
R
VIDEO
INPUT
AUDIO
INPUT
AUDIO
L
R
TV/SAT
AUDIO
IN
2
14
15
24
18
22
16
21
4
3
6
6
DVD1
SAT-L
5
19
17
8
MIC
RECB1
7
SUR-L
C
A
B
A
B
C
A
B
A
B
A+9V
81
82
DVD A MUTE
MIC DETECT
77
85
79
80
ANALOG IN MUTE
46
AUDIO-OUT-MUTE
83
76
AMP
SECTION
H
I
F
AMP
SECTION
RF
SECTION
TAPE/TUNER
SECTION
G
DISPLAY/POWER
SECTION
RF
SECTION
MUTE
Q514, 564
MUTE
Q117
MUTE DRIVE
Q516, 517
MUTE
Q206
4V REG.
Q323
MUTE DRIVE
Q521, 522
MUTE DRIVE
Q505,506
MUTE
Q200,202-204,
250,252-254
MUTE DRIVE
Q507,508
R-CH
R-CH
J202
AUDIO OUT
L
R
J103
D-LIGHT
SYNC
OUT
R-CH
6
7
42
SPEANA IN
AMP
IC304 (2/2)
SURROUND
VOL CONTROL
IC201
DM_L
DM_R
MB_FL
MB_FR
FC
MB_SL
MB_SR
SW (LFE)
DATA
CLOCK
R-CH
R-CH
R-CH
R-CH
LPF
I/F
41
40
37
39
38
RF
SECTION
A
34
2
32
13
12
6
5
10
9
15
24
14
+
11
4
31
25
30
29
8
7
7
23
28
27
27
26
22
3
17
18
MB_FL
MB_FR
FC
MB_SL
MB_SR
SW (LFE)
+
2
1
MUSIC L+R
AMP
IC304 (1/2)
3
1
5
7
MIC/MUSIC AMP
IC2000
3
1
6
7
COMPARATOR
IC2002
3
2
2
6
1
5
7
COMPARATOR
IC2001
D2004
-2008
SCORE
XVOICE
SELECTOR CCT
IC1506
DM-L
EFFECTOR SELECT
18
EFFECTOR-CTR1
EFFECTOR-CTR3
57
70
Y COM
3Y
0Y
3
4
1
X COM
3X
OX
B A
13
11
12
9 10
EFFECTOR S1
43
EFFECTOR S2
44
EFFECTOR S0
19
A
MIXER L/R
IC1505
7
13
5
3
MIXER
IC1500
1
3
DM-R
DIGITAL DELAY
IC1501
MULTIPLEXER
IC1503
9
12
11
10
2
3
Q1508
Q1506
Q1500
LPF2OUT
LPF1IN
LPF1OUT
LPF2IN
OP2OUT
OP2IN
CLOCK
A B
COM
C
Q1502
+
+
14
3
10 9
11
BUFFER
Q1509
BUFFER
Q1513
RV1501
DIGITAL ECHO
IC1101
J1150(1/3)
J1150(2/3)
MIC 1
ECHO
LEVEL
RV1150
MIC 2
LEVEL
RV1100
MIC 1
LEVEL
MIC OUT
MIC AMP
IC1100
J1100(1/3)
J1100(2/3)
J1150(3/3)
J1100(3/3)
MIC 2
3
5
1
7
MIC AMP
IC1102
3
5
1
7
MIC IN
MIC VOL IN
MIC OUT
SCL/ECHO VOL
5
8
28
16
B
: AUDIO
: DVD PLAY
: TAPE PLAY
: REC (DECK B)
: MIC
: TAPE PLAY
: REC (DECK B)
: MIC
: TUNER
• Signal Path
• R-CH is omitted due to same as L-CH.
(Page 27)
(Page 29)
(Page 29)
(Page 27)
(Page 29)
(Page 27)
(Page 32)
(Page 31)
(Page 31)
HCD-GN1200D
HCD-GN1200D
31
31
7-5. BLOCK DIAGRAM – AMP Section –
H
MAIN
SECTION
MAIN
SECTION
I
DISPLAY/POWER
SECTION
K
MUTING
Q604, 606, 610
F-R
DBFB F/B
F-L
SW OUT
60
67
STK-MUTE
PROTECTOR
STK MUTE
14
13
11
4
3
12
STK MUTE
FAN DET
FAN CONTROL
HI SPEED
OVER LOAD
DETECT
Q668, 618
+
+
+
+
MUTING
Q640, 641
MUTING
CONTROL
Q634,682
F-RELAY
HP-DET
HP-MUTE
HP-DETECT
72
HP-MUTE
58
FAN HI SPEED
66
84
FRONT-RELAY
42
FAN-CONTROL
OVER LOAD
DETECT
Q730, 770. 780, 800, 850
RELAY DRIVE
Q644, 647
H/P DET
F-RELAY
HP-MUTE
+
-
-
+
FRONT SPEAKER
SUB WOOFER
OUT
L
R
PHONES
J1103
RY646
SYSTEM CONTROLLER
IC401 (5/6)
TM600
M
FAN MOTOR
DRIVE
Q579, 585
DC FAN
M891
M
FAN MOTOR
DRIVE
Q587 - 589
DC FAN
M892
VL(AC)
TH629
THERMAL
DETECT
Q628, 630
SW MUTE
Q812
MUTE
Q810
+
51
SW-SPK RELAY
RY862
TM101
RELAY DRIVE
Q814, 815
6
4
OVER
LOAD
DC DET
VP
OCP
CT
OUT
D624
D812
D550
2
1
Q648
18
11
10
10
9
14
8
-
HI SPEED
SWITCH
Q581, 582
7
5
POWER AMP
IC600
OVER CURRENT
PROTECTOR
IC550
POWER AMP
IC800
FAN CONTROL
SWITCH
Q578
SR
CENTER
SL
14
19
18
+
REAR
SPEAKER
CENTER
SPEAKER
+
+
+
65
CENTER-RELAY
61
SURR-RELAY
RY760
RY761
L
R
LINEMUTE
RELAY DRIVE
Q762
RELAY DRIVE
Q763
8
21
11
MUTE
Q750
MUTE
Q700
MUTE
Q740
-
-
-
TM701
TM700
10
9
22
D780
D765
POWER AMP
IC801
: AUDIO
• SIGNAL PATH
(Page 30)
(Page 30)
(Page 32)
HCD-GN1200D
HCD-GN1200D
32
32
7-6. BLOCK DIAGRAM – DISPLAY/POWER Section –
NO.402
(FOR CHECK)
CN402
(3/3)
(FOR CHECK)
78
MTK-POWER
68
OVER VOLTAGE DET
REG. SWITCH
Q518, 503
REG. SWITCH
Q104
+5V REG.
Q103
RECT
D560
M +9V
SW +9V
+9V REG
LED +9V
A +9V
ST +9V
MB +9V
+9V REG
+9V REG
VOLTAGE
CHECK
Q504, 550
AU +5V
V +5V
AC3
AC4
AC4
AC3
F1281
AUDIO +9V
BIAS +9V
RECT
D561
+SW3.3V
+3.3V REG
+B SWITCH
Q513,520
AU+5V
+SW5V
(ZIVA)
+5V REG
F1291
UNREG
S1200
S1200
230 – 240V
|
220V
|
120V
VOLTAGE
SELECTOR
IC558
IC559
IC561
IC560
IC507
MAIN
SECTION
G
AMP
SECTION
K
ND900
FLUORESCENT
INDICATOR TUBE
9, 10, 12 – 22,
24 – 41, 43 – 47
1 – 6, 87-100
P1 – 36
G2 – 21
64 – 66
7, 8, 86
BF4
1
SPECTRUM
ANALYZER
IC902
67
68
16
2
15
69
71
48
80
ALL BAND
BF3
BF1
IN2
IN1
VKK
LED SELECTOR
G1,22,23
G1,22,23
G2-21
13
17
74 VOLUME
ROTARY
ENCODER
S935
MASTER
VOLUME
VOLUME
SPEANA
P1 – 36
VF1
VF2
VF2
D900
-VG
(-32V)
X900
4MHz
83 XIN
82 XOUT
52– 59,
75,76,78,79
LED DRIVE
Q906-916, 921
D906, 908, 910, 913, 915, 917,
919, 921, 929, 923, 925, 927
919, 921, 929, 923, 925, 927
D905, 907, 909, 912, 914,
916, 918, 922, 924, 926
916, 918, 922, 924, 926
LED+9V
Q903
Q902
Q901
Q900
D904
(R)
D930
(G)
KEY2
|
KEY0
S900 – 905, 907 - 914,
916 - 928, 934, 937
916 - 928, 934, 937
60
I2C DATA
61
I2C CLK
77
RESET
30 IIC-DATA
29 IIC-CLK
29 IIC-CLK
IIC-DATA
IIC-CLK
40 GC-RESET
74 POWER-KEY
73 DISPLAY-KEY
S934
S900
DISPLAY
41 STBY-LED
4 SIRCS
RESET
X402
5MHz
15 X-IN
13 X-OUT
X401
32.768kHz
10 XC-IN
11 XC-OUT
SYSTEM CONTROL
IC401 (6/6)
7
STBY-RELAY
12
RESET
20
AC-CUT
B+ SWITCH
Q523, 524
D672
D505
D501
POWER
SWITCHING
LED DRIVE
Q904,905
RECT
D658
RECT
D656
+VL
VL(AC)
F1261
VL
VL
VL
VH
VH
VH
VP
VF
VF
GND
F1271
F1241
F1251
R1292
–VL
+VH
–VH
–VH
– 33V
REGULATOR
Q1264
POWER ON/OFF
RELAY DRIVE
Q1200
– VG
(-32V)
D1292
RECT
VF1
VF2
RY1200
AC IN
T1200
POWER
TRANSFORMER
RESET
SWITCH
Q501
REMOTE CONTROL
RECEIVER
IC901
TO FLUORESCENT
INDICATOR TUBE
FL901
EVER +4V
M+9V
D3.3V
DISPLAY CONTROL,
KEY CONTROL
IC900
BUFFER
Q917, 918, 919
70 BF2
14
R480
72 OPERATION DIAL
ROTARY
ENCODER
S936
OPERATION
DIAL
1
2
LEVEL
DETECT
IC501
(Page 30)
(Page 31)
Click on the first or last page to see other HCD-GN1200D / MHC-GN1200D service manuals if exist.