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Great quality complete service manual! complete parts list and drawings. Thanks!
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Great quality complete service manual! complete parts list and drawings. Thanks!
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Very good quality, prompt response. This website has reasonable prices and wide range of manuals that are hard to find.
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The document was usefull, and it was exactly what I was looking for.
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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
picture, No sound Fluorescent lamp failure to light up
Check all the settings microprocessor's adjust process menu.
No Remove F701 and
Is there short-circuiting?
Do F701 check the load side. F701. Does F703 function? Replace F703.
Yes No Are T701's secondary Is there short-circuiting of
outputs, +34V, +15V, +10V, T701 primary side periphery, S4101 and Is pin (34) of in Check the OFL1 line, IC1201 connection cable. the "H" state? and their peripheral parts. +5V -9V normal? Q701, Q703 and S4101.
No Yes No
Is T701's primary oscillator Check Q1774 and their Is the Q3603 short-circuiting? waveform normal? peripheral parts.
Yes
Check T701's secondary T1771 T1772 primary side Q1771~Q1773 and load. periphery, Q1771~Q1773. connection cable.
No Is there short-circuiting of Check T1771, T1772,
TROUBLE SHOOTING TABLE
17
Yes
Replace the fluorescent lamp with new one and check again.
LC-15M4E
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