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6-2. CD section
6-2-1. No disc error
x
Check voltage at
PIN 40 of NIC9220
O
Check voltage at pin8
of NIC 9220 (high-- low)
oO
Check focusing
Check oscillation
of NIC 9282
Check voltage at
PIN 70 of NIC 9220
Check soldering and
pattern of NQ 1
Check soldering of
x
:
pick-up laser diode
heres nop
Check laser (on)
Check
Voltage of u-com FOK
oy
Check soldering of
"FOK" of NIC 9220
Check
'
2
wave-form (H — L—H)at pin 33
us
| saa
Kalaered a
|
of NIC 9220
P
Check voltage at pin 11 (SP+),
pin 12(SP-) of NIC 9258
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