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There are currently no product reviews.
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Awesome manual. Complete diagrams of all board assemblies as well as how to get to each part of the t.v. down to the individual screws and their locations. Get it.
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perfect copy, im very satisfied, i was need the diagram over the powersupply and
the copy was very sharp
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This is exactly the service manual I needed.
Complete with all schematics, partslists, PCB layouts and alignment instructions.
This manual covers both the T-4970 en T-488F Onkyo tuner.
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IF PRINTED CIRQUIT BOARD WIRING VIEW WAS ONE TONE LIGHTER, THEN 5 STAR RANK HAS TO BE MY CHOISE.
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Very usefull, good quality drawings !
Muito útil encontrei todas as informações necessárias.
XL-40H/50H
� HF error.
Is output (tracking error signal) obtained at the pins 46 (TEI) and 47 (TEZI) of IC802 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 2 and 5 of BI802/CNS802 No
Optical pickup failure.
Yes Check the periphery of IC801. Check the PWB pattern between pin 12. (TEO) of IC801 and pins 46 and 47 of IC802. Is it normal ? Yes Check the PWB pattern between pin 50 (TEO) of IC802 and pin 18 of IC804. Check the periphery of IC804 and BI801/CNS801. If OK. Optical pickup failure. IC801 is faulty. No
TEI TEZI
Is output (HF signal) obtained at the pin 38 (RFI) of IC802 when 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 1 and 3, 4 of BI802/CNS802. No Yes Check the periphery of IC801.
Optical pickup failure.
RFI
Check the PWB pattern between pin 19 (RFGO) of IC801 and pins 38 (RFI) of IC802. If OK. IC801 is faulty
Is output (HF signal) obtained at the pins 41 (RFZI) and 42 (RFRP) of IC802 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 IC801. Check the PWB pattern between pin17 (RFRP) of IC801 and pins 41 (RFZI) and 42 (RFRP) of IC802. If OK. IC801 is faulty.
Is the following wave output to the pin 55 (DMO) of IC802 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 28~32 of IC802. If OK. IC802 failure.
Normal.
� No sound.
No sound from both L and R-ch? No Yes Check the interval between the pins 82 or 85 of IC802 and the pins 1 or 3 IC601.
Is +4.5V applied to pin 83 (DVDD) of IC802? Yes No
Check the PWB pattern between R819 and Q861.
Is signal of pins 82 and 85 of IC802 output? Yes The main PWB is faulty. No
Check the peripheral parts of IC802. If OK, IC802 is faulty.
� 38 �
 $4.99 XL-40H SHARP
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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