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Excellent quality service manual. Quick processing, fair prices. Love to do business again. Thank you!!!
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Excellent service manual, the only known point of note is the alignment of improvability scanned pages within the pdf page. The resolution is good.
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I was very glad recieving the service manal from You. Additionaly very fast. Extremaly nice servicing. Thanks very mach! Now my GX-220 working better, than it was made. Alexander from Moscow, Russia/
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Sweet! I won the item on eBay and couldn't adjust the geometry or even keep a steady picure. This guide has the full schematics (not available anywhere else as far as I could tell), and was a bargain for the wealth of knowledge it contains. I hooked it up to my testing equipment, tweaked a few potentiometers and got it playing videogames in no time. Thanks!
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It was just what I need to fix my old BMW's CD player. Very convenient also. Thank you.
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6. ADJUSTMENT
[Purpose]
If the combination of MAIN Assy and LOADER Assy is changed, the adjusted value for LD power will be shifted, and stable playback or recording of a disc will become impossible. Therefore, when the combination of MAIN Assy and LOADER Assy is changed, LD power adjustment and adjustment for disc judgment will be necessary. Be sure to do this adjustment at following cases. � When replacing MAIN Assy � When replacing LOADER Assy
[Tools to be used]
� Special tool for adjusting the LD power (GGF1559) � 10-pin FFC flexible cable (GGD1477) � CD-ROM test disc: CDT-313 (GGV1054) � DVD dual-layer test disc: DVDT-002 (GGV1036)
A
[Notes]
Never turn the power off while any of the following operations is in progress: � While laser diode (LD) power adjustment is being performed normally by the unit � While adjustment for disc judgment is being performed
B
[Connections]
� Connections for adjusting the LD power
Special tool for adjusting the LD power
POWER SUPPLY Unit HDD
C
Main Assy and writer
Note: Before adjusting the LD power, disconnect the power to the HDD and the flexible cable for ATA (40-pin). � To which the special tool for adjusting the LD power is connected
The right side (see the figure below) of the connector is for connection of the flexible cable. CN5601
D
Main Assy
CN1402 CN1401
Special tool for adjusting the LD power
Connect the 10-pin flexible cable to the lower part of CN401.
� Setting of the switches on the special tool for adjusting the LD power
E
ON ON ON ON ON
Set all five switches to ON.
F
DVR-640H-AV
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