LCD 2012 11 01
Date of Issue: 5
LCD TELEVISION TECHNICAL BULLETIN
Page 1 of 1
Sharp Electronics (UK) Limited
Reference – MB26102012
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
LC32X20E LC37X20E LC42X20E LC46X20E
LC37B20E LC42B20E LC37XL8E LC52X20E
Intermittent power on and LEDs flashing 2 x Red 3 x Green.
R7832/R7833/R7834 reducing in resistance over time.
Check the voltage across the main smoothing capacitor should be about 350V during
Standby and increases to 395V during power on and normal operation, if it does not
change or is low replace R7832 R7833 R7834 511K ¼ watt 1%.
These are commercially available components and can be ordered from R.S using
their stock code number 6792203P (packed in 50s)
REF NO DESCRIPTION PART
R7832/3/4 511KΩ 1%
“40/46/52” Models “32/37” Models
Figure 1: Location of R7832/33/34 on underside of PSU PWB.