Sharp VC-M29HM (serv.man17) Service Manual / Technical Bulletin ▷ View online
VCR2000 01 02
Month of Issue: January 2000
Classification:
White
VIDEO TECHNICAL BULLETIN
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Sharp Electronics (UK) Limited
Reference AVW200100-1
Revision 1
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
MODELS
VCM26HM
VCM27HM
VCM271HM
VCM29HM
VCMH67HM
VCMH675HM
VCMH68HM
VCMH69HM
SYMPTOM Dead or tripping power supply.
CAUSE
-25V supply is low or missing, or no power supply feedback.
ACTION
If the –25V supply is low or missing, replace D927 and R995.
If the D927 and R995 are not found to be faulty, then it is likely that the opto coupler,
IC901, is faulty.
IC901, is faulty.
Please use the part numbers below for replacement parts.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
D927
Diode, 1SS147
VHD1SS147//-1
AA
R995
SMD resistor, 10 (1/16W)
VRS-CY1JF100J
AA
IC901
Photo coupler
RH-FX0007GEZZ
AE
Display