Text preview for : Technical_Information_®_.pdf part of AIWA CDC-X116, CDC-X126, CDC-X136 Service Technical Information - Subject: No display on the LCD - pag. 1
Back to : Technical_Information_®_. | Home
1/1
Service Technical Information
MODEL NO.
CDC -X116 / X126 / X136
SUBJECT
No display on the LCD
REF.No. :G - A0 - 057 -E0 DATE :25. JUL. 2000
If a request is made to repair a device of any of the above models because of "No display on the LCD," make sure of the symptom, and take the following procedure. HLDR,LCD -C2 of P.W.B.FRONT (D.F.P.) comes in contact with +B line of the backlight. As a result, the transistor Q853 (2SB1326) of P.W.B.MAIN is damaged. Take steps 1) , 2). 1) Replace Q853 (2SB1326) of P.W.B.MAIN.
CON851 Q853 2SB1326 14V SW Q851 2SB1277 ANT SW
R853 10K R856 680 1/2W R855 10K R852 470 1/2W
R
Q854 DTC114EK 5V SW
R
0
Q852 DTC14EK ANT SW
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
FRONT L+ REAR L+ REAR R+ FRONT R+ NC AUTO ANT ACC GND FRONT LREAR LREAR RFRONT RNC NC NC BACKUP B+
2) Cut GND LINE of HLDR,LCD -C2 of P.W.B.FRONT (D.F.P.) at the point shown in the figure below.
TO A MA IN C .B . CON802 4 .9
HLDR ,LCD -C2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CON801
IC 802
3
2
1
60 59 58 57 56 55 54 53 52 51 50 49 48 47 46
CUT the L INE
Ref. Q853 G - R -
Parts Code 87- A30- 299- 080 Code No. -
Description TR,2SB1326 Access Code - Modified Ser. No. -
Remarks - Parts Schedule -