Table of Contents
Advertisement
Focus servo check
If a power supply is switched on,
does the focus move up and
down?
Check waveform :
FE
IC201(109)
Check waveform :
IC101(18)
ABCD
Check waveform :
IC101(43)
IC101(44)
IC101(46)
IC101(47)
(D) Focus drive check
Check waveform :
FOP
IC301(34)
FON
IC301(35)
Check waveform :
CTL1
IC301(38)
CTL2
IC301(41)
Check waveform :
VHALF
IC301(25)
Check waveform :
FD
IC301(27)
After the LASER check,
do this check item!
NO
YES
OK
NG
OK
NG
OK
NG
OK
NG
NG
OK
NG
OK
NG
OK
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
Check item
party, check signal-line including a nearby circuit.
go to
(D) Focus drive check
• LASER power?
• IC101(18) -- IC201(109)
• IC101 power
• IC101
• CN101 connection
• Pick-up
Check item
• CN101(1) -- IC301(34)
• CN101(2) -- IC301(35)
• CN101 connection
• CN101
• FFC-cable of Pick-up
• Pick-up unit
• IC301(38) -- IC201(59)
• IC301(41) -- IC201(60)
• IC201
• IC301(25) -- IC101(17)
• IC101
• IC301(27) -- IC201(119)
• IC201
• IC301
57
Advertisement
Table of Contents
