Sharp LC-42XL2E (serv.man19) Service Manual / Technical Bulletin ▷ View online
LCD 2009 01 04
Date of Issue: 16
th
January 2009
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 1 of 5
Sharp Electronics (UK) Limited
Reference – LV294
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
LC32X20E
LC37X20E
LC42X20E
LC46X20E
LC52X20E
LC42XL2E
LC46XL2E
LC52XL2E
LC46X8E
LC32XL8E
LC37XL8E
LC32B20E
LC37B20E
LC42B20E
SYMPTOM Picture blocking when inserting CI card assembly even on non encoded channels or
the set may reboot when CI inserted.
CAUSE
The signals being processed could be affected by the CI card assembly.
ACTION
Check the part number of the main PWB and follow the instructions in the following
pages for the relevant board and issue.
pages for the relevant board and issue.
1. If the unit reboots on CI insertion, see Figures 1 & 2 for component layout and
remove R9154.
2. If block noise appears when CI inserted add IC4409 and cut the Main PWB track
by R4410 as shown see in figures 3 to 8 depending upon print version.
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
IC4409
SMD Buffer IC
VHITC7SH17U-1Y
AC
LCD 2009 01 04
Date of Issue: 16
th
January 2009
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 2 of 5
Sharp Electronics (UK) Limited
Reference – LV294
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
Figure 1: Side B on Main boards fitted in the LC42,46 and 52” units
Figure 2: Side A on Main PWB fitted in the 32” and 37”.
LCD 2009 01 04
Date of Issue: 16
th
January 2009
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 3 of 5
Sharp Electronics (UK) Limited
Reference – LV294
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
Figure 3: Checking the part number of board
Figure 4: Boards with part ref ZZ,N1 and N2 as used in the 42”,46” and 52”.
LCD 2009 01 04
Date of Issue: 16
th
January 2009
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 4 of 5
Sharp Electronics (UK) Limited
Reference – LV294
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
Figure 5: Boards with the N3 track version.
Figure 6: Main board part number ref for 32” and 37”
Display