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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
XL-T200H
� HF error.
Is output (tracking error signal) obtained at the pins 31 (TEI) and 32 (TEZI) of IC801 the CD TEST MODE "STEP 4" is changed to "STEP 5"? Yes
test mode "step 4" test mode "step 5"
No
Is output obtained at the pins 3 and 8 of CNP801/CNW801. No Yes Check the periphery of IC802. Check the PWB pattern between pin 11 (TEO) of IC802 and pins 31 and 32 of IC801. Is it normal ? Yes
Optical pickup failure.
IC802 is faulty. No
TEI TEZI
Check the PWB pattern between pin 34 (TRO) of IC801 and pin 25 of IC803. Check the periphery of IC803 and CNP801/CNW801. If OK. Optical pickup failure. Is output (HF signal) obtained at the pin 24 (RFI) of IC801 when the CD TEST MODE "STEP 4" is changed to "STEP 5"? Yes
test mode "step 4" RFI test mode "step 5"
No
Is output obtained at the pins 4 and 5,6 of CNP801/CNW801. No Yes
Optical pickup failure.
Check the periphery of IC802. Check the PWB pattern between pin 19 (RFGO) of IC802 and pins 24 (RFI) of IC801. If OK. IC802 is faulty
Is output (HF signal) obtained at the pins 27 (RFZI) and 28 (RFRP) of IC801 when the CD TEST MODE "STEP 4" is changed to "STEP 5"? Yes
RFZI RFRP test mode "step 4" test mode "step 5"
No
Check the periphery of IC802. Check the PWB pattern between pin17 (RFRP) of IC802 and pins 27 (RFZI) and 28 (RFRP) of IC801. If OK. IC802 is faulty.
Is the following wave output to the pin 41 (DMO) of IC801 when the CD TEST MODE "STEP 4" or "STEP 5"? Yes
DMO test mode "step 4" test mode "step 5"
No
Check the periphery pins 15~19 of IC801. If OK. IC801 failure.
Normal.
� No sound.
No sound from both L and R-ch? No Yes Check the interval between the pins 50 or 53 of IC801 and the pins 1 or 10 of IC601.
Is +3.3V applied to pin 51 (DVDD) of IC801? Yes No
Check the PWB pattern between pin 51 of IC801 and Q803.
Is signal of pins 50 and 53 of IC801 output? Yes The main PWB is faulty. No
Check the peripheral parts of IC801. If OK, IC801 is faulty.
� 33 �
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