|
Who's Online
There currently are 5997 guests online.
|
Categories
|
Information
|
Featured Product
|
|
|
|
|
There are currently no product reviews.
;
Impressively thorough. Even the simple operators manual helped me "fix" one of the 2 CD players in the unit. This unit reads CD's from the top so they should be installed in the magazines "upside down" from typical CD players. The CD player service manual helped me unjam a stuck carriage because somebody transported the box laying down loaded with CD's. A little lens cleaning & the player now works well! Thanks for you help at a great price! Joe
;
I was skeptical at first but later found the manual to be good quality for the price. It took a couple hours to receive the email with the download link, well worth the wait. Thanks.
;
very helpful, I could not have cleaned motherboard and replaced the main fan without it
;
Good manual, schematics nice and clear with good quality scanning. Woul dhave been nice to have immediate access after purchasing though.
;
I was very glad recieving the service manal from You. Manuals were delivered promptly and were correct as advertised. A complete and very usefull service manual with all details. Thank you!
MD-MT80W/90W/90/90C
� The spindle motor fails to run. Does the head move
Does the waveform appear on the IC201 pins 24 and 25 after TEST mode AUTO2 completion and in this state? Yes
No
Check the IC201 periphery.
Does waveform appear on the IC601 pin 43? Yes Does waveform appear on IC901 pins 1, 2 and 23? Yes
No
Replace. IC601
No
L608, IC201, IC901, CN601 and flex, etc. soldering check
Replace the spindle motor.
� Recording/playback operation
Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode. Does the head move down, failing to start record even when the continuous record mode is set after address? No Does the RF waveform appear at TP201 (When monitoring the RF waveform, set to MSL:80H using the control setting item of EEPROM) when recording/Playback is performed No Does level of pins 86 of IC401 and pin 17 of IC101 change depending on record and playback? Yes Yes Yes Check voltage of pins 52 and 53 of IC201, pins 3, 4, 7, and 9 of IC651, pins 1 and 2 of CN601. Check whether disc is recordinhibited.
No
Check periphery of IC401 and IC101.
Is RF pattern output from IC201 pin 50? Yes Check whether there is any damage in IC101, periphery of laser diode. Check for defects of IC351 in head drive flexible PWB, head, flexible PWB.
No
Check for soldering failure of IC201 .
Is audio monitor output given in normal mode LINE IN record? No
Yes
Check waveforms of pins 8,10,11,12 of IC501, pins 70 to 73 of IC201.
Is waveform obtained on IC501 pins 2 and 3? No
Yes
Check whether the pin 13 of IC501 and the pin 59 of IC201 are in H state.
Is audio waveform observed on the pins 8 and 17 of IC703? Yes Check whether input waveform is observed on the pins 4 and 21 of IC703.
No
Does voltage on the IC701 pins 13 to 15 change in case of record VOLUME UP/DOWN?
� 41 �
|
|
|
> |
|