![background image](http://html.mh-extra.com/html/sony/hcd-rg55/hcd-rg55_service-manual_420855027.webp)
27
27
HCD-RG55/RG55S
• Refer to page 26 for Waveforms.
6-4. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 44 for IC Block Diagrams.
(Page 35)
IC B/D
IC B/D
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
7
8
9
10
11
12
13
14
IC781
BA6898FP
IC731
LA9242M
IC751
LC78622NE
CN733
CD BOARD
SENSOR (CD) BOARD
MOTOR BOARD
DRIVER BOARD
OPTICAL
PICK-UP
BLOCK
(SPDL) MOTER
BOARD
IC781
FOCUS/TRACKING COIL DRIVE,
SLED/SPINDLE MOTOT DRIVE
IC731
RF AMP,DIGITAL SERVO
IC751
DIGITAL SIGNAL
PROCESSOR
IC701
SLIDE MOTOR
DRIVE
D701
MTZJ-T-77-3.9A
IC711
TBL ADDRESS SENSOR
Q775
BUFFER
Q731
LD DRIVE
Q774
MUTE CONTROL
Q772,771
MUTE
CN732
6P
CN731
16P
CN01
6P
19P
CN734
8P
CN735
10P
CN701
10P
CN702
8P
CN721
8P
CN722
4P
CN711
4P
S711
(UP/DOWN)
S701
SLIDE
OPEN/CLOSE
M01
(SPINDLE)
M02
(SLED)
S01
(LIMIT)
M721
SLIDE
OPEN/CLOSE
PANEL
BOARD
CN804
A
MAIN
(4/4)
BOARD
CN301
B
RPI-321
1
2
3
4
IC B/D
IC B/D
(Page 33)