1/1

Service Technical Information

 

MODEL NO.

SUFFIX

 

TVC143 / C148 / C1418

KE,KER

 

TVC208 / C203 / C2018

SH,SHR

 

 

 

SUBJECT

Remote controller does not works properly

REF.No. :G A1057E0

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 SBX198172P.

2.Add JW305 following the drawing(land exists).

3.Back solder ZENER,UZ6.8BSC following the drawing. Glue(KE3490) on the parts.

4.Put the dot mark at the right side of serial No. after countermeasure.

Circuit diagram

IC3

 

SBX198172P

1

2

3

JW305

 

 

IC1 36PIN

5V

ZENER6.8V

Pattern diagram MAIN PWB(Pattern side)

IC301 IC1

T602

Countermeasure

Circuit

countermeasure circuit

3

R1

2

Replace

SBX198172P

IC3

1

Add JW305

Back soldering and apply glue to the ZENER 6.8V

 

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

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

87A40

754

080

 

ZENER,UZ6.8BSC

 

 

 

IC3

 

87A91

538

010

 

RCR UNIT,SBX1981

72P

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

G

 

R

Code No

 

 

Access Code

 

Modified Ser. No.

 

Parts Schedule

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mentioned in the above sentence

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Page 21
Image 21
Aiwa TV 2002 Ke,Ker, Sh,Shr, IC1 36PIN, TV C148 SHRJ4C,SHRJLRC,SHJRC, TV C148 SHRJL1C,SHRJ1C,SHJLRC, ZENER,UZ6.8BSC IC3