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This service manual helped me to repair my PIONEER. Iam very satisfied, that I found it here.
Even the price of manual was not so high that person would not be able to spend a few money.
But that is very worth spent money. Thanks
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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!
Check Laser Current a. Touch the IOP test land IOP on the MA-C30 Mounted Board. b. Measure the voltage generated by the laser current while the drive in process of focus search. c. It is supposed to be about 4.5V because the voltage of IOP will drop by IOP x10� from 5V-A. d. Otherwise replace the optical pick-up. Check G Sensor a. Pull the SE-C7 P. W. B. cable out from the connector. b. Measure the resistance between 3 terminals respectively. (VSG-GND, GND-5V) c. The resistance should be 3.7 ± 1M� between VSG and GND, and 94 ± 6k� between GND and 5V.
5-2-4-9. Chucking Mechanism a. Listen the sound from the drive while the drive is spinning up. b. Check if there is any slipping noise among the Turntable, the Chucking Pulley Ass'y and the Disc. c. If you hear any, check the mechanical adjustments (SECTION 4). d. Otherwise disassemble the drive and check if there is excessive dust or any contamination on the Turntable or the disc. Note: As the CD-56 adopts the VCAN (Vibration Cancel) motor for the spindle motor, clattering sounds of the ball bearings are produced during spinning up and spinning down. Differentiate these from slipping sounds. 5-2-4-10. Sled Motor a. Disconnect the SE-C7 P. W. B. cable from the SE-C7 board. b. Check the resistance between 2 terminals of sled motor. c. It should be 10.8� ± 10%.
VSG GND 5V
[MA-C30 BOARD] (SIDE B)
TP IOP Laser Current Check
CNJ102 IC106
CNJ103
IC104
CNJ201
CNJ104
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