Read Sharp 59CS-D8H (serv.man28) Technical Bulletin online
Sharp Electronics (UK) Limited
Reference JC280699/1
Revision 2
White – Carry out as required, Yellow – Carry out as required and whenever the unit comes in for service, Red – Carry out on all units
CTV990701
Month of Issue: July 1999
Classification: White
TELEVISION TECHNICAL BULLETIN
Page 1 of 1
MODELS
59CSD8H
66CSD8H
SYMPTOM Doming caused by high beam current in limited areas of the CRT shadowmask
causing short term purity errors.
ACTION Reduce the factory pre-sets for brightness, saturation and contrast to a point at which
doming does not appear.
This is achieved by changing the following NVM locations
Function
NVM Page
NVM Position Factory Default
Change To
Brightness
00
21
28
24
Saturation
00
22
32
2D
Contrast
00
23
50
4A
To set these NVM positions, enter the test mode as described in the service manual,
then adjust to the values given above (these are only given for guidance and may be
changed as necessary). To store the values, remember to press the standby button
on the remote control while at that location.
Note:
It is important that after carrying out the above changes, the user picture set up menu
is entered and the normalised button is pressed. Turn the reciever off, then back on
again using the mains button to ensure that the settings are memorised.
then adjust to the values given above (these are only given for guidance and may be
changed as necessary). To store the values, remember to press the standby button
on the remote control while at that location.
Note:
It is important that after carrying out the above changes, the user picture set up menu
is entered and the normalised button is pressed. Turn the reciever off, then back on
again using the mains button to ensure that the settings are memorised.
Display
