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Service Technical Information
MODEL NO. SUFFIX
TV C143 / C148 / C1418 KE,KER−
TV C208 / C203 / C2018 SH,SHR−
SUBJECT
Remote controller does not works properly REF.No. :G A1 057 E0−− −
DATE :17. OCT. 2001
<CONTENTS>
Due to malfunction of sensor part of remote controller(IC3), it may does not work properly.
In this case, take the following corrective countermeasure.
(Corrected set is dotted at the right side of serial No.)
<COUNTERMEASURE>
Due to the following corrective countermeasure, it prevents from the fault of sensor part by surge
voltage.
1. Replace IC3 from GP1U281Y to SBX1981 72P.−
2. Add JW305 following the drawing(land exists).
3. Back solder ZENER,UZ6.8BSC following the drawing.
Glue(KE 3490) on the parts.−
4. Put the dot mark at the right side of serial No. after countermeasure.
Circuit diagram
IC1 36PIN
Pattern diagram MAIN PWB(Pattern side)
countermeasure circuit
Serial No. matched to production
S 16 (All model except following suffixed model)∗∗∗∗ ∗∗∗∗∗∼
S 15 (TV C148 SHRJ4C,SHRJLRC,SHJRC )∗∗∗∗ ∗∗∗∗∗∼ −
S 14 (TV C148 SHRJL1C,SHRJ1C,SHJLRC)∗∗∗∗ ∗∗∗∗∗∼ −
Ref. Parts Code Description Remarks
−−−− −87 A40 754 080 ZENER,UZ6.8BSC
−−− − −IC3 87 A91 538 010 RCR UNIT,SBX1981 72P
G R Code No Access Code Modified Ser. No. Parts Schedule
−− − − −mentioned in the above sentence
1
2
3
IC3
R1
Add
JW305
Back soldering and
apply glue to the
ZENER 6.8V
Replace
SBX1981
−
72P
IC301
IC1
T602
Countermeasure
Circuit
SBX1981
−
72P
JW305
ZENER6.8V
3
2
1
IC3
5V