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1. Connect only the power cable
Power check
(Malfunction of LED and Tray).
Check the connection of 5V, 12V.
IC 501
10
19
20
BD7907FS
6Ch Servo DRIVE
31
32
CN 100
TROUBLESHOOTING GUIDE
Check the Reset (Pin 170, 122 of
IC 401
MT1516
RF Amp
Wobble
ALPC
General port use
EEPROM access
54
44
51
30
41
44
12V
5V
IC101, pin2 of IC401).
109
MCLK
' H '
/XRST
2
SCLK
122
SDATA
123
XLAT
124
IC 103
AT49F002N
32
512KB
Flash ROM
IC 202
Reset
3
2
1
3.3 V
3
IC 502
Check the input of oscillation (pin
109 of IC401).
Check SCLK, SDATA, XLAT
(pin 122, 123, 124 of IC401).
33.8688MHz
74
55
65
IC 101
63
62
MT1518
MT1508
DSP
Decoder
Encoder
ATIP Demodulator
Write Strategy
Write S/H Signal
I / F
Micro Processor
' L '
170 PRST
SDRAM
IC 102
75
' H '
122
/ HRST
51
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