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(When a power supply is switched on)
Pick-up not slide
Check waveform :
IC301(5)
IC301(6)
IC301(9)
IC301(10)
NG
Check waveform :
IC301(1)
IC301(2)
OK
Check waveform :
IC301(38)
IC301(42)
OK
IC301(25) : 1.65V?
IC301(3) : 12V?
3.3VD
IC201
3.3VA
1.5V
servo
IC101
3.3VA
5V
PG701
44
43
42
41
46
Note : Pick-up unit slide, when Power ON(or drive reset) or disc tray closed.
Pick-up slide to TOC area of disc, after going to the maximum inner side.
The distance between the maximum inner side and TOC area of disc is about 3mm.
Check item
OK
• SL motor
• CN302
NG
• IC301(1) -- IC201(66)
• IC301(2) -- IC201(67)
• IC201
NG
• IC301(38) -- IC201(59)
• IC301(41) -- IC201(60)
• IC201
NG
• IC301(25) -- IC101(17)
• IC101
NG
• IC301(3) -- CN701(41)
OK
• IC301
u-COM
66
67
59
60
VHALF
17
IC501
3.3VD
5
3.3VA
6
IC502
1.5V
Vo
5V
12V
Note : When the circuit number is written, check parts and
soldering including a nearty circuit.
When two or more pin numbers are indicated by the
party, check signal-line including a nearby circuit.
9
SIN1
1
10
SIN2
2
5
CTL1
38
6
CTL2
41
Mute
CONT.
25
IC301
5V
12V
B+
slide
4
B-
MOTOR
3
A+
1
A-
2
PG302
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