29
29
HCD-GNZ77D/GNZ88D
HCD-GNZ77D/GNZ88D
6-3. BLOCK DIAGRAM — MAIN SECTION —
CENTER
SUBWOOFER
SURROUND L
FRONT L
DOWNMIX L
GNZ88D
R–CH
R–CH
SL OUT
SW OUT
CENTER
SW OUT
FRONT L
ADC RESET
DBFB FEED BACK
V
C
Y
YG
WIDE
CB/R
DSEL
INIT
NSP MUTE
SOFT MUTE
DATA
CLK
RST
DATA
LAT
LAT
CLK
RST
8
DO
6
DI
7
CL
9
CE
1
TUNED
R–CH
R–CH
FM 75
Ω
COAXIAL
DIN
DOUT
CLK
CE
TUNED
ST A+9V
5
LCH
3
RCH
R–CH
4
+9V
P
B
/C
B
P
R
/C
R
Y
CR/B
SELECT
SWITCH
Q261
MUTE CONTROL
Q301,302
MUTE
Q175
MUTE CONTROL
Q110,111
MUTE
Q166
MUTE
Q285
MIC2
LEVLE
RV1401
ECHO AMP
IC1400
ECHO LEVEL
RV1401
MIC AMP
IC1401
MIC1
LEVLE
DVD/CD MUTE
CONTROL
Q307,308
RV1401
REC/PB AMP,
SOUND CONTROL
IC101
SIGNAL SELECT
IC205
MUTE
Q235
MUTE
Q236
MUTE
Q238
MUTE
Q237
SELECT
SWITCH
Q260
DBFB
FEED BACK
Q101
FAN
DETECT
Q580,582
FAN
CONTROL
Q584
FAN
DRIVE
Q585
AM
J501
J501
TU901
ANTENNA
TV/SAT IN
L
R
J1402
J1402
J1400
AUDIO
MIC 1
J1450
MIC 2
VIDEO
VIDEO
INPUT
L
R
SCORE
VOICE
R-CH
PB
HEAD
HP901
BIAS OSC
Q112
T101
ERASE
REC/PB
HEAD
R-CH
BIAS+9V
MUTE CONTROL
Q107–109
HRPE901
(DECK B)
(DECK A)
A TRGM+
B TRG CONTROL
Q118,119
CAP CONTROL
Q120,121
A TRG CONTROL
Q122,123
UNREG+12V
FAN901
FAN DET
75 OHM DRIVER
IC1801
C
J1902 (2/2)
S VIDEO
OUT
Y
J1902 (1/2)
VIDEO SELECTOR
IC1805
VIDEO
OUT
D–LIGHT
SYNC OUT
J506
SUB WOOFER
OUT
J503
J1900
COMPONENT
OUT
Q154,
155
Q113,114
SIGNAL IN/OUT CONTROL
IC403
MUSIC L+R
AC/DC CONVERTER
IC2000 (2/2)
DETECT
COMPARATOR
IC2001
LIMIT VOICE
COMPARATOR
IC2002
• Signal Path
: TUNER
: AUDIO
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: VIDEO
: COMPONENT VIDEO
• R-CH is omitted due to same as L-CH.
SOFT MUTE
CONTROL
Q305,306,311
MUTE
Q263,264
JW261
GNZ77D
w w w . x i a o y u 1 6 3 . c o m
Q Q 3 7 6 3 1 5 1 5 0
9
9
2
8
9
4
2
9
8
T E L
1 3 9 4 2 2 9 6 5 1 3
9
9
2
8
9
4
2
9
8
0
5
1
5
1
3
6
7
3
Q
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299