Block Diagram - Main Section - Sony HCD-GNZ7D Service Manual

HCD-GNZ7D/GNZ8D/GNZ9D
Q Q
3 7 6 3 1 5 1 5 0
7-4. BLOCK DIAGRAM — MAIN SECTION —
TM901
LCH 5
FM 75Ω
R-CH
RCH 3
COAXIAL
+9V 4 A+9V
ANTENNA
DIN
DO 8
DOUT
6
DI
AM CLK
CL 7
CE
9
CE
TUNED
TUNED 1
J202
L
IN
R
R-CH
TV/SAT
L
OUT
R
R-CH
J1001
VIDEO
VIDEO
INPUT L
AUDIO
R
R-CH
MIC AMP
J1003
IC1001 (1/2)
MIC 1
ECHO AMP
IC1002
J1004
RV1001
MIC 2
MIC LEVEL
(DECK A)
T E
L 1 3 9 4 2 2 9 6 5 1 3
HP901
PB
HEAD
R-CH
(DECK B)
REC/PB
HEAD Q602,603
R-CH
HRPE901
T601
Q627,
Q628 BIAS OSC
ERASE
Q601
HEAD
TAPE MUTE CONTROL
R-CH
MECHANISM Q629-631
DECK
BLOCK
B PHOTO
A PHOTO
B MODE
A MODE
B HALF
A HALF
REC(REV)
REC(FWD)
CAP M+
B SOL
A SOL
w w w
HCD-GNZ7D/GNZ8D/GNZ9D
AUDIO FRONT
E
SECTION
DOWN MIX
(Page 37)
TUNER
PB(DECK A)
PB(DECK B)
REC(DECK B)
LINE
VIDEO
MIC
MUTE
Q705
SYSEM CONTORL
MIC AMP
69 DIN
IC1001 (2/2)
70 DOUT
71 CLK
68 CE
RV1002
ECHO LEVEL LINE OUT 19 TUNED
MUTE CONTROL
Q727
AC DET
MUTE
A+9V
Q622
MUTE CONTROL
Q623,624
86 BIAS
84
83
82
85
CAP M DRIVE
Q103,104
B SOL DRIVE
78
Q101,102
A SOL DRIVE
79
Q105,106
21 PB/REC
24 CAPM SW
RF/SERVO
A
10 AU-OUT MUTE
SECTION MIC
(Page 35)
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REC/PB AMP,
SOUND CONTROLLER
IC201
57 SUR1
3 DM SW
SW 29
AUDIO
TONE D
SECTION
TONE 23
MUTE
4 INB1
(Page 37)
75 PB A
76 PB B
Q272
POWER AMP
IC401
17 REC
LOUT 28 15 IN
ST-BY
13
27
BBB1
MUTE
BBA1 25
2 LINE
Q701
6 VIDEO
DBFB
59 MIC SWITCH
Q212
13 RECB1
53
35 34
Q271
MUTE
CONTROL
IC101 (3/4)
3 1
VACS/
88
ILLUMI
VACS2 8
ST
AC DET
Q Q MUTE
3 7 6
CONTROL
Q728
AC DET
AC4
D763,Q721-723
VIDEO OUT-SW
5
SHUT(B)
SHUT(A)
PLAY(A)&(B)/A-HALF
B-HALF/REC
VIDEO
B
SECTION
(Page 36)
TRG(B)
VIDEO MUTE 6
TRG(A)
TA MUTE
8
HP MUTE 9
FUN ON/OFF
6
FUN CTRL 12
FRONT RELAY
7
REAR RELAY 22
u 1 6 3
y
SIGNAL IN/OUT CONTROL
IC102 (2/3)
38 38
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2 4
8 9 9
SURROUND RY
OVERLOAD DET
DC DET
OVERHEAT
DET PROTECT
TH401,Q416,417
FUN DET
RY481
+RE 6
-RE 7
OVERLOAD
R-CH
Q481,482
DET
Q401
R-CH
DBFB Q282,283 D753
DET
RELAY AC
SWITCH DET
IC203
R-CH
2
PROTECT
SWITCH
1 4
DET
Q281
3
Q402,403
MUTE
Q703
AUDIO
PROTECT
F
SECTION
(Page 37)
MUTE CONTROL
AC DET
Q729
3 1 5 1 5 0 8 9
VIDEO SELECTOR
1
IC802
4
2
COMPONENT
6
VIDEO BUFFER
IC801
V
4 CVBS IN CVBS OUT 23
S-DC OUT 27
C
2 C-IN C OUT 26
Y
6 Y-IN Y OUT 21
YG
10 CY-IN
CY OUT 20
WIDE
25 S1
CB/R
12 CB-IN CB OUT 18
DSEL
9 I/P
CR/B
14 CR-IN CR OUT 16
3 MUTE1 • Signal Path
13 MUTE2
: AUDIO
: TUNER
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
m
: VIDEO
: COMPONENT VIDEO
c o
• R-CH is omitted due to same as L-CH.
.
2
8 9 9
AUDIO
G
SECTION
(Page 37)
TM401
L
FRONT
R-CH
SPEAKER
+VH
R-CH R
AC3
R-CH J1004
PHONES
FUNCTION/
POWER
H
HP SW
SECTION
(Page 39)
FAN SWITCH
2 4 9 8 2 FAN902 9 9
Q782-784
FAN
GNZ9D
Q791-795,
797
FAN FAN901
SWITCH FAN
J802
VIDEO
OUT
J803
C
S VIDEO
Y
OUT
Y
J801
COMPONENT
P /C
B B VIDEO OUT
P /C
R R