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A site where discontinualed schematic diagrams and back dated information can be found on discontinued radios tv's and any electronic equipment can be found. Newer manuals either Service and operating manuals. Radio amateurs should find this site a great source for ham radio equipment manuals. I will return to this site should I need information on any electrical equipment. priced easy to download in a PDF format and print pages need to undertake the repair.
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Quality scan of the original. All the detail necessary to troubleshoot, repair and adjust the unit. I'm sure I will be downloading more manuals in the future as the need arises.
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Exactly as described, a Service Manual complete with the schematics and PCB layout delivered in a timely manner. Many thanks for the great service.
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some of the writing is a bit blur but the part in the schmatic was great and i have fixed the machine thanks
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Well.. I'd searched for this manual and although I found many copies online I was pleased to find your website with a well balanced pricing system and easy to search and follow links. That together with the very quick response time was just what I was looking for.. being a very impatient tech.. ;-) I had the service manual in front of me within a short time.
Bookmarked.. and you can bet I will always come here first for my service & user manuals..
best regards
Ed(Tony) Foley
G7WHK
4.4.5 Optimization adjustment of Front End parameter Adjustment to optimize Front End parameter must be performed in each mechanism assembly of this model for high-speed starting.Please perform optimization according to the following procedures just after all-initialization is completed and when FL display shows anything except "�0" (For example when FDP shows "�1", "�2", and "�3") at test mode. (1) Press "POWER" button of the front panel to turn the main body on (not to set the main body at test mode). (2) Insert the test disc VT-501 or commercial dual-layer DVD software. (3) Remove the disc when the FL display changes from "READ" to disc information. (4) Perform the same procedures as in (2) and (3) above by using the test disc CTS-1000 or commercial CD-DA software. (5) Set the main body at test mode, and check that the FDP shows "�0". NOTE: Status of this adjustment can be judged by the number displayed at test mode as follows: DVD adjustment Adjusted Not adjusted Adjusted Not adjusted CD adjustment Adjusted Adjusted Not adjusted Not adjusted FDP at test mode �0 �1 �2 �3
NOTE: As for a disc used for adjustment, � Disc should be mounted. ("Mounting" means to display "READ" after the disc is inserted and then display the disc information.) Disc need not be played. � If you do not have test disc either VT-501 (DVD) or CTS-1000 (CD-DA), use a commercial disc (for DVD, dual-layer software) after seeing and checking that the disc is neither curved nor foreseen that it may shake at the time of playback.If you use a disc with bad features, starting time may be slow or disc may not be read. 4.4.6 (1) (2) (3) Display of current value of laser Set the main body at test mode. Press "SET UP MENU" key of the remote controller three times. Then, FDP is displayed "CHECK". The laser current value can be switched between the value of CD and that of DVD by pressing the following key of the remote controller.
FDP (Example)
2530
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Remote controller "4" key --- Laser of CD Remote controller "5" key --- Laser of DVD
The number shown in the FDP shows mA of current value of laser.The first two numbers ("25" in "2530") shows current value of laser at the time of adjustment after the latest all-initialization, 25mA in this example.The last two numbers ("30" in "2530") shows the present current value of laser, 30mA in this example.The first two numbers ("25" in "2530") usually shows current value of laser at the time of shipment, so you can see how the product has been deteriorated by comparing the first two numbers ("25" in "2530") and the last two numbers ("30" in "2530"). CD: The laser current value of 65 mA or less is normal.The laser current value of over 66 mA is not normal. Laser diode of the pickup has been deteriorated. DVD: The laser current value of 80 mA or less is normal.The laser current value of over 81 mA is not normal. Laser diode of the pickup has been deteriorated. To return to test mode, press "STOP" button of the front panel.
1-22 (No.YD001)
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