Mainboard Failure Check - Haier LD42K3 Service Manual

9-2. Mainboard Failure Check

    1R 1R SRZHU
1R SRZHU 1R SRZHU SRZHU
<(6
&KHFN 9 DQG 9 RXWSXW IURP
HPEHGGHG SRZHU VXSSO\ IRU DEQRUPLW\
<(6
&KHFN 9 DQG 9 RQ
PDLQ ERDUG IRU DEQRUPLW\
<(6
&KHFN IRU RSHQORRS RI IXVH
RU UHSODFH PDLQ ERDUG
    :LWKRXW :LWKRXW :LWKRXW OLJKW OLJKW
:LWKRXW OLJKW OLJKW
:KHQ WKH LQGLFDWRU LV RQ EXW WKHUH LV QR GLVSOD\ FKHFN UHPRWH FRQWURO IRU
SRZHURII PLQLPXP EULJKWQHVV FRQWUDVW UDWLR FKHFN KLJKYROWDJH VZLWFKERDUG
FRQWUROOHG E\ PDLQ ERDUG IRU DEQRUPLW\
<(6
&KHFN WKH IXVH RQ KLJKYROWDJH ERDUG IRU
WKH VXSSO\ RI 9
<(6
5HSODFH KLJKYROWDJH VZLWFKERDUG
&KHFN 9 SRZHU VXSSO\ YROWDJH
DQG WKH FRQWDFW RI SRZHU VRFNHW
&KHFN $& 9 YROWDJH DQG WKH
FRQWDFWRI VRFNHW
CN1
$EQRUPDO RXWSXW YROWDJH 9 DQG 9 IURP
HPEHGGHG SRZHU VXSSO\ UHSODFH HPEHGGHG
SRZHU VXSSO\ ZLWK WKH VDPH PRGHO
Service Manual
Model No.:
5HSODFH SRZHU FRUG RU SRZHU
VRFNHW
&KHFN PDLQ ERDUG RI SRZHU VXSSO\ IRU
ORRVHQHVV RSHQORRS DQG SRRU FRQWDFW
&KHFN HDFK WULRGH RI FRQWURO SDUW IRU
DEQRUPLW\ RU UHSODFH PDLQ ERDUG
&KHFN IXVH
12
12
12
12
12
53