Read Sharp 66DS-03H (serv.man24) Technical Bulletin online
CTV2000 08 10
Month of Issue: August 2000
Classification:
White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference AVW04082000-1
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
59DS03H
59DS05H
66DS03H
66DS05H
66ES03H
66ES05H
SYMPTOM No or poor east/west correction.
CAUSE
Various components.
ACTION
Before replacing any components for no or poor east/west correction, check that the
waveform on the east/west control pin of IC201 (pin 45) is changing when the
geometry setting is adjusted in the service mode. The waveform on this pin will be a
parabola at vertical rate.
If the waveform does not change, or changes by only a small amount, it is likely that
either the NVM (IC104) or the VDP (IC201) is faulty.
If the waveform does change, then the fault is likely to be in the region of either the
drive or output circuit. R519 (100k, 05.W) has been known to go open circuit.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
IC104
IC, NVM
RH-IX1588BMZZ
AQ
IC201
IC, TDA8844
VHITDA8844/-1
BD
R519
Resistor, 100k 0.5W
VRD-RA2HD104J
AA
Display