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Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
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Repair of portable DVD player Goodmans G-DVD 67LCD ser.No. G-1723910698
I have been asked to try to repair this 7" screen player. The fault
is that discs are not read. The screen displays and menus are OK. I have no remote or service info but disassembled the unit and used a genuine correct region 2 DVD (it's a region 2 unit) to find that the disc runs up, the speed hunts up and down whilst the laser initially goes to the outer edge of the disc, then to a position about 30% out from the centre and the laser lights. It then hunts +/- 3 mm from this position, occasionally hitting the inner mechanical stop with a clunking noise. There are no loose screws or obstructions or broken sled bits, the 'runners' are smooth and lubricated although I do not wish to disassemble the optical unit in case I affect alignment. The lens is clean. After 90 secs the screen reads 'wrong disc'. I am a general purpose, not AV, technician and posses general test equipment. I understand laser safety and only look at an angle at the laser spot hitting the underside of the disc. Given I live in Saudi Arabia and sending the unit for repair is uneconomic, can anyone advise of any further simple procedures I could try? I realise the procedure 'find a dustbin' is probably logical, but I'd like to try and fix it. |
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