Sharp 21" DUNTK9428WE

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Sharp 21" DUNTK9428WE

Post by geof79 on Tue 8 Sep - 8:51

Pa help mga master. My nsun0g e2 resistor papunta sa crt board. D ko na mkuha kung anung value. R454 sa pgitan ng tuner at flyback. Ang parts ng tv
REGULAtor-D1884
HOT-D2586
VERTICAL-TA8403K
audio-TDA7056A
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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Tue 8 Sep - 10:22

Bka my alam nman neto mga master, need ko lng kc ngaun kung an0ng value. Wla kc b0ard na ka m0del. Thankz..
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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Tue 8 Sep - 10:22

Bka my alam nman neto mga master, need ko lng kc ngaun kung an0ng value. Wla kc b0ard na ka m0del. Thankz..
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Tue 8 Sep - 13:02

L2 chassis iyan. - link

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Tue 8 Sep - 13:47

Ok na sir hertz, thanks. nkuha ko na un value ng nsun0g. Prob neto kc dati kulay pink nlang display, taz now saglit lang na on tpos balik na sa standby. Ng open un R454 at R458. Nag check na ako ng suply sa vertical pero wla. Try ko na replace.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Tue 8 Sep - 16:08

kong pink ang kulay maaaring patay ang green. subukan rin magreprogram ng eeprom.

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Wed 9 Sep - 7:12

Pki tama lng mga master kung mali ako. R511 - 1 ohm? Mejo mlabo na kc un kulay ng resistor. Galing Pin 7 ng fbt punta ng TA8403K.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 9 Sep - 7:51

1.5 ohm 1/2w pero pwede na rin iyang 1 ohm. fuseable lang naman ang silbi niya sa board

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Wed 9 Sep - 8:02

Slamat sir hertz. Ask ko lng kung panu mgtest ng board kung ok na. Pwd ba i2 kht wlang yoke taz d na nka hang un HOT?
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 9 Sep - 8:10

yes pwede iyan. basta ok ang b+ mo at tama ang oscillation. 115v-125v
 na B+ ay ok sa ganyang board

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Wed 9 Sep - 8:19

Ok sir hertz. Tnx..
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 9 Sep - 8:21

basta 125 ang standby mo at bagsak namn kunti pag nag oscillate

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Wed 9 Sep - 8:35

San ko ba msu2kat un 125 sir? Ntest lng ako sa colector ng HOT. D ko pa kc kbsado.
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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Wed 9 Sep - 9:59

Ask ko nrin i2 mga master. Kung nka hang ba ang HOT wla tlga nsu2kat na voltage sa mga diode galing sa pin ng fbt? Ganun din sa vertical? O my iba pang prob pg gnito? Sa tuner meron lng ay un 33v taz ung 5v wla rin. Meron nman 5v sa pin ng remote sensor. Sa colector ng HOT 125v ang nasukat ko.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 9 Sep - 11:51

pagtinanggal mo ang H-out, sadyang wala ka ngang masusukat sa mga output ng flyback. hanggat walang oscillation ay wala talaga yan.

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Wed 9 Sep - 12:07

Ah, ok mlinaw na skn. Ibig sbhn patay din un supply ng vertical kc galing din sa fbt? Ng replace na ako ng vertical ne2 kc my tama. Ng open nga rin un fuse resistor. Update ko nlng i2 pg naikabit na un b0ard. Tnx sa reply sir hertz.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 9 Sep - 12:43

your welcome. goodluck sa inaayos mo

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Sat 12 Sep - 4:25

Ok na e2 master. Pgkbit ko my kunti prob pa. My mga loose lng pla sa pin ng jungle ic. Dagdag ktanungan lng, san ba maari prob ng tv pg my shadow na color? Minsan pa kumakalat.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Sat 12 Sep - 4:49

anong klaseng shadow? puede bakat yan ng degaussing o may problema ang crt socket

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Sat 12 Sep - 14:32

Un sir halimbawa sa mukha ng tao sa display my lumilitaw sa gilid na kulay blue.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 16 Sep - 4:37

fading effect. pwede mahina ang video supply. palit ka na rin ng caps niya. pag walang pinagbago ay palit ka ng bagong crt socket.

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Re: Sharp 21" DUNTK9428WE

Post by geof79 on Mon 21 Sep - 5:13

Tnx d2 sir hertz. Ok na ang unit. Cnundan ko lng advice nyo. +1 sau sir.
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Re: Sharp 21" DUNTK9428WE

Post by Hertz on Wed 30 Sep - 5:16

mabuti naman. congrats

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Re: Sharp 21" DUNTK9428WE

Post by DJFEL on Wed 7 Oct - 16:44

nka protic to..kolang yata supply patongo nang CRT bord..
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Re: Sharp 21" DUNTK9428WE

Post by alvinquimbo on Wed 7 Oct - 18:11

congratulation congratulation congratulation
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Re: Sharp 21" DUNTK9428WE

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