Service manual

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HCD-GNZ55D
HCD-GNZ55D
6-3. BLOCK DIAGRAM — MAIN SECTION —
57 FRONT
FRONT L
DOWNMIX L
DVD/CD
TU–LCH
MIC
4
3
28FRONT L
53L+R LIGHTING
26F/B
37FRONT R
R–CH
FRONT L
ADC RESET
DBFB FEED BACK
88VACS IN
66IO EXP DATA OUT
68IO EXP RST
69IO EXP CLK
70IO EXP LAT
26D1
INIT
NSP MUTE
SOFT MUTE
4LATCH
3CLK
2RESET
DATA
CLK
RST
DATA
LAT
LAT
CLK
RST
22ADC RESET
8DO
6DI
7CL
9CE
1TUNED
R–CH
FM 75Ω
COAXIAL
DIN
DOUT
CLK
CE
TUNED
ST A+9V
5LCH
3RCH
4+9V
59
PB A
75
PB B
76
REC
17
CLK
34
DATA
35
CLK
84
DIN
37
DOUT
39
CLK
38
CE
ST
36
TUNED
40
DATA
83
DVD A MUTE
34
MIC DETECT
23
B SHUT
90
A SHUT
89
A HALF
63
B HALF
91
REC MUTE
7
REC BIAS
20
TC REALY
21
CAMP CNT
18
B TRIG
19
A TRIG
17
SM INIT
12
SM NSP MUTING
9
SM SOFT MUTING
10
4
MUTE CONTROL
Q301,302
MUTE
Q175
MUTE CONTROL
Q110,111
MUTE
Q166
MIC AMP
IC1401 (2/2)
MIC AMP
IC1401 (1/2)
MIC
LEVLE
DVD/CD MUTE
CONTROL
Q307,308
RV1400
REC/PB AMP,
SOUND CONTROL
IC101
MUTE
Q238
MUTE
Q237
DBFB
FEED BACK
Q101
IN
OUT
SAG
AM
TU901
ANTENNA
J1400
MIC
C
AUDIO
SECTION
B
VIDEO
SECTION
D
AUDIO
SECTION
R-CH
PB
HEAD
HP901
BIAS OSC
Q112
T101
R-CH
ERASE
HEAD
REC/PB
HEAD
R-CH
BIAS+9V
MUTE CONTROL
Q107–109
HRPE901
(DECK B)
(DECK A)
TAPE
MECHANISM
DECK
BLOCK
B SHUT
A SHUT
A HALF
B HALF
REC(REV)
CAP M+
REC(FWD)
B TRGM+
A TRGM+
B TRG CONTROL
Q118,119
CAP CONTROL
Q120,121
A TRG CONTROL
Q122,123
A
VIDEO
SECTION
V
J1900
VIDEO SIGNAL SELECT
IC1800
VIDEO
OUT
D–LIGHT
SYNC OUT
J506
Q154,
155
Q113,114
SIGNAL IN/OUT CONTROL
IC403
SYSTEM
CONTROL
IC401 (3/4)
• Signal Path
: TUNER
: AUDIO
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: VIDEO
• R-CH is omitted due to same as L-CH.
2
3
21VIDEO MUTE
1
PC
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