51
Disc-motor doesn’t rotate.
•
IC301 -- CN301
•
CN301 connection
•
Disc motor
•
IC301(38) -- IC201(59)
•
IC301(41) -- IC201(60)
•
IC201
•
IC301(22) - CN701(41)
LASER light up?
refer : LASER check
Focus servo OK?
refer : Focus servo check.
check wave -form:
IC301(12)
IC301(13)
IC301(14)
check waveform:
IC301(38)
IC301(41)
Check item
Note : When the circuit number is written, check parts and
soldering including a nearby circuit.
When two or more pin numbers are indicated by the
party, check signal-line including a nearby circuit.
Disc motor stop, immediately
after it rotated.
Check waveform :
IC201(75)
Note : When the circuit number is written, check
parts and soldering including a nearby circuit.
When two or more pin numbers are indicated
by the party, check signal-line including a
nearby circuit.
OK
•
IC201
Check item
OK
Check waveform :
IC301(24)
•
IC201(75) -- IC301(24)
OK
OK
CN301(8) : about 5V
•
CN301(8) -- PG701(53)
NG
PG301(7) : ????V
•
CN301(7) -- IC301(23)
•
IC301
NG
check waveform :
IC301(16)
IC301(17)
IC301(18)
IC301(19)
IC301(20)
IC301(21)
•
IC301 -- CN301 -- disc motor
•
Disc motor
•
IC301
•
R292
NG
NG
NG
IC301(22):12V?
OK
OK
•
IC301(25) -- IC101(17)
•
IC101
check waveform:
IC301(25)
NG
OK
•
IC301(26) -- IC201(56)
•
IC201
•
IC301
check waveform:
IC301(26)
NG
OK
OK
W
V
U
VM1
CTL1
CTL2
VHALF
SPD
SFG
SFG
VH+
VH-
Hn+/-