
31
31
HCD-GNZ333D/GNZ444D
HCD-GNZ333D/GNZ444D
SECTION 7
DIAGRAMS
7-1. BLOCK DIAGRAM – RF/SERVO Section –
DETECTOR
C
D
OPTICAL PICK-UP
BLOCK
2AXIS
AUTOMATIC POWER
CONTROL (FOR DVD)
Q102 (2/2)
VOLUME CONTROL
Q101
AUTOMATIC POWER
CONTROL (FOR CD)
Q102 (1/2)
LASER
DIODE
(FOR CD)
LASER
DIODE
(FOR DVD)
FOCUS/TRACKING COIL DRIVER,
SPINDLE, SLED MOTOR DRIVER
IC201
FOO
RF
A
B
C
D
F
E
CD LD
PD
VC
VR650
VR780
Q103
IOP
MSW
(LIMIT)
DVD LD
FCS+
FCS–
SW+5V
D
C
B
A
VREFO
VREFO
B
A
SYSRESET
TRO
FMO
FOO
DMO
TRO
FMO
DMO
176
1
2
5
6
TXD
RXD
V2REFO
TEST PIN
RFMON
CN105
: AUDIO(DVD)
: VIDEO(DVD)
• Signal Path
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
0
5
1
5
1
TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299