Service manual

27 27
HCD-GNZ55D
HCD-GNZ55D
6-1. BLOCK DIAGRAM — RF/SERVO SECTION —
: CD PLAY
: DVD PLAY
: SACD PLAY
• Signal Path
DETECTOR
6
2
3
4
5
11
10
19
18
252 253
DVDRFIP
DVDA
DVDB
DVDC
DVDD
TPI
TNI
MC
MD
C
D
LD01
MD12
LD02
MSW
MD11
OSP
OSN
CD/DVD RF AMP,
FOCUS/TRACKING ERROR AMP
DVD SYSTEM PROCESSOR
DIGITAL SERVO PROCESSOR
IC102(1/2)
OPTICAL PICK-UP
BLOCK
2AXIS
DEVICE
FOCUS/
TRACKING
COIL
23
20
LI M SW
176
22
21
36 48
43
37 1
AUTOMATIC POWER
CONTROL (FOR DVD)
Q102 (2/2)
VOLUME CONTROL
Q101, Q103
AUTOMATIC POWER
CONTROL (FOR CD)
Q102 (1/2)
LASER
DIODE
(FOR CD)
LASER
DIODE
(FOR DVD)
FOCUS COIL
DRIVE
42
41
BUFFER
35 3
34 4
TRACKING COIL
DRIVE
32
38
42
37
41
30
47
FOCUS/TRACKING COIL DRIVER,
SPINDLE, SLED MOTOR DRIVER
IC201
27
28
SPINDLE MOTOR
DRIVE
MM
SPINDLE
46
47
FMO
FOO
DMO
TRO
V REFO
SPFG
40
IOPMON
FOO
RF
A
B
C
D
F
E
CD LD
PD
LIMIT
VR650
VR780
MSW
DVD LD
FCS+
FCS–
TRK+
VCC
TRK–
SP+
SP–
SL+
SL–
D
C B A
V1P4
V1P4
9
NB
B
8
NA
A
30
29
SLED MOTOR
DRIVE
MM
50
BUFFER
19
20
22
21
40
45
SYSTEM
CONTROL
IC401(1/4)
99
IFCK
MTK_SOD
33
100
XIFCS
MTK_XIFCK
27
110
PRST
MTK_RESET
26
98
IFSDO
MTK_CLK
32
101
IFSDI
105
IFBSY
KRMOD/HSYNC
MTK BUSY
28
KRMOD
24
MTK_SIO
31
TRO
FMO
FOO
DMO
TRO
10
13
FMO
DMO
211
MUTE123
210
MUTE
170
TSDM
207
MIC STATUS
25
MIC/VSYNC
205
SLED
SECTION 6
DIAGRAMS