Sharp LC-70LE741E (serv.man21) Service Manual / Technical Bulletin ▷ View online
LCD 2013 04 03
Date of Issue:
22
nd
April 2013
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 1 of 2
Sharp Electronics (UK) Limited
Reference
– LV-705
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
LC70LE741E
SYMPTOM There is no power when the unit is turned on OR the heat sink on the power unit is at
a high temperature when the unit is working.
REASON
Failure (short-circuit) of diode D7805 in the power unit.
ACTION
If either symptom happens on the unit which is within the OLD serial number range,
check for the diode D7805 on the power unit by using a tester. If it is defective, replace
the defective power unit with the NEW power unit RUNTKA933WJN2.
check for the diode D7805 on the power unit by using a tester. If it is defective, replace
the defective power unit with the NEW power unit RUNTKA933WJN2.
OLD
serial number range -
204011112～209011552
REF NO
DESCRIPTION
PART NUMBER
PRICE CODE
Power Unit
RUNTKA933WJN2
BS
Changes in the power unit
1. Diode D7805 is changed to the NEW one.
OLD: NUR460 (NXP company) NEW: MUR460 (LITE-ON company)
2. Three pieces of Spacer LHLDZB650WJKZ are added to SP7001, SP7002 and SP7004 .
3. The unit code is changed to RUNTKA933WJN2 (Sticking the label)
3. The unit code is changed to RUNTKA933WJN2 (Sticking the label)
Refer to page 2 for an image highlighting the changes.
LCD 2013 04 03
Date of Issue:
22
nd
April 2013
Classification:
White
LCD TELEVISION TECHNICAL BULLETIN
Page 2 of 2
Sharp Electronics (UK) Limited
Reference
– LV-705
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
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