SHARP 28JS74E, 28JS74S, 32JF74E Service Manual
CATEGORY: Bb
Technical Report
SUBJECT:
TV DOES NOT SWITCH ON BY MAINS.
IRIS Symptom Code: ---- IRIS Section: ----
GENERAL
MODELS
&
SERIAL No.
When the TV set is off (Mains Switch) and then it is turned on it may remain in off at random.
(If it is switched off again by main switch for a few minutes it will probably start up properly.)
MODEL MODEL MODEL
28JS74E/EC/EF 28JS76E/EES/ESE/EIT/EC 28JS75E/EES
28JS74S/SS 32JF76E/EES/ESE/EIT/EC 32JW74E/EES
32JF74E/EES 32JW76E/EES/EIT/ESE 28JW76E/EES/EC
------ ------ ------
------ ------ ------
INTER-
CHANGE-
ABILITY
ABCD
INTERCHANGEABLE From OLD to NEW From NEW to OLD NOT INTERCHANGEABLE
R E F:
PAGE:
DATE:
SP030900X
2
1 /
11 / MAR / 2003
PARTS
SERVICING
REF
No.
------ ------ ------ ------ ------ ------ --- ---
When any of the above TV sets is called for Service, please check R749, R719 and C738
values.
In case of any of these parts differs from Table 1 or Table 2, these parts must be matched to
Table 2( preferably).
See Table 1 and Table 2 on the next page.
Note: Any other combination of values ( R749, R719 an C738) which differs from Table 1 and
NEW PARTS
DESCRIPTION
Table 2 cannot be used.
OLD PARTS
NUMBER
NEW PARTS
NUMBER
INTER
CHAN
GEAB.
EFFECTIVE FROMEXCODESNCODE
SHARP ELECTRONICA ESPAÑA, S.A. Engineering Dept.
C:\...\FORMATS\LAB_TR-A-B (rev 1)
CATEGORY: Bb
Technical Report
SUBJECT:
TV DOES NOT SWITCH ON BY MAINS.
IRIS Symptom Code: ---- IRIS Section: ----
REF No
R749
R719
C738
PARTS
NUMBER
VRN-VY2HD474J
VRN-VY2HD474J
RC-FZ9154WJNK POL FILM C
PARTS
DESCRIPTION
RES AT 470K
0,5W 5% VR37 BC
232224213474
RES AT 470K
0,5W 5% VR37 BC
232224213474
150NF 10% 63V
Table 1
SN
CODEEXCODE
AA AB
AA AB
AA AA
R E F:
PAGE:
DATE:
SP030900X
2 /
2
11 / MAR / 2003
REF No PARTS
NUMBER
R749
R719
C738
VRN-VY2HD105J
VRN-VY2HD105J
RC-FZ9563BMNJ POL FILM C 56NF
PARTS
DESCRIPTIONSNCODEEXCODE
RESISTOR AT
1M 0,5W 5% VR37
PHILIPS
RESISTOR AT
1M 0,5W 5% VR37
PHILIPS
5% 63V
Table 2
AA AB
AA AB
AA AC
SHARP ELECTRONICA ESPAÑA, S.A. Engineering Dept.
C:\...\FORMATS\LAB_TR-A-B (rev 1)
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