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There are currently no product reviews.
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This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
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Wellll again thank you very much fast and effective. Clear and well done for such an old TV!!!!
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It has all the information you will need to fix it. The main circuit diagram is only A4 but being a PDF, you can print it to any size - I did it on two sheets of A3 and it didnt lose any detail - just made it readable when pinned up above the bench. I've found the fault, just need to buy some obscure bits to get it going again!
I cant fault the process, I paid for the manual in the morning and it was ready to download by lunch time.
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Very good copy in a 54 pages PDF archive. This is my sixth purchase here. :)
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Another excellent buy! File too clear and explanatory.
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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