Schematic Diagram - Bd Board - Sony HCD-RG88 Service Manual

7-7. SCHEMATIC DIAGRAM – BD Board – •
DSP+5V (SW)
D-OUT
DSP-GND
L-CH
RF-GND
R-CH
RF+5V (SW)
A
X-RST
CD-DATA
MAIN
X-LAT
BOARD (1/4)
CD-CLK
CN201
(Page LD-ON
SQ-DATA
34)
SQ-CLK
M-GND
M+7V (UNSW)
•
See page 28 for Waveforms. See page 50 for IC Block Diagrams.
6
DIGITAL SERVO PROCESSOR
DIGITAL SIGNAL PROCESSOR,
DIGITAL FILTER,
D/A CONVERTER
Q102
2SD1664-T100-QR
+3.3V REGULATOR
680
220k
TP
(FEI)
33k
TP
(DVC)
RV101
E-F BALANCE
(1 TRACK JUMP)
TP
5
(RFDC)
TP2
(TEO)
4
TP
(FEO)
3
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
2
29 29
TP
(RFAC)
1
Q101
2SB710A-RT1
AUTOMATIC
POWER CONTROL
RF AMP,
FOCUS/TRACKING
ERROR AMP
• Voltages and waveforms are dc with respect to ground
under no-signal conditions.
no mark : CD PLAY
The components identified by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specified.
HCD-RG88