FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

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FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Thu Jun 19, 2014 1:15 pm

sORI CAN'T SEE ANYTHING IN MESSAGE BOX WHILE TYPING. wANT TO KNOW SERVICE CODE TO ENTER SERVICE MODE

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Thu Jun 19, 2014 1:15 pm

Now I see it while typing... bakit kaya?

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Thu Jun 19, 2014 1:18 pm

kapag quick reply I see the letters on the msge box pero i-eedit ko sana yung recent msge ko, ayun wala kong makita... why kaya?

Tried Vol dwn + display, waley

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by ultrasonic™ on Thu Jun 19, 2014 3:05 pm

may 3 hidden secret button sa remocon nyan Sirjon.
iyon ang Pinto para makapasok  ^_^



image courtesy of one impakta's of Elab  Banana dancing 


pa ot:

may time limit kasi ang pag edit Sirjon.. 5mins lang after pinost ang post....  iyong di mkita ang message sa message box kasi effect iyon sa default setting nya. white din kasi ang font color at background

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by ultrasonic™ on Thu Jun 19, 2014 6:31 pm

pa ot ulit:

@Sirjon... or change nlng kayo ng Mode Type


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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Fri Jun 20, 2014 9:32 am

ultrasonic
pa ot:

may time limit kasi ang pag edit Sirjon.. 5mins lang after pinost ang post....  iyong di mkita ang message sa message box kasi effect iyon sa default setting nya. white din kasi ang font color at background

Now I know. Thanks a lot Ulitasonic

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Sat Jun 21, 2014 7:51 pm

I entered n s service mode. But the problem still exist.

Ok I'll give you a rundown of its history.

Actually, the real problem was that the color is not 'blending' well but if you turn down the color, the picture is perfectly B/W. So I assumed the problem lies on the color phasing (3.58Mhz cw not on correct phase angles). Sound is good.
Then I tried to replace the  4.43Mhz xtal oscillator but nothing happened. I then tried to use a small valued ceramic cap (the blue one w/ 2kv working voltage) and tried to place it by touching the joints near the the LA- 7603K, then suddenly the sound seems to change (maybe I accidentally altered the 5.5Mhz 'M' mode setting into 6 to 6.5Mhz sound filter mode), what you'll hear is just 'hissing' sound and the picture has some interference on it.
Maybe I have to change the settings in the service mode but I couldn't find the NTSC, PAL and M settings in the list menu of the 'service mode'...

Please help me find it. thanks in advance.

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Sat Jun 21, 2014 7:57 pm

To make it clear, there are only two crystal oscillator, the thin circular small one, I believe it is for circuit clock timing (didn't bothered to see its value) and the 4.43Mhz xtal oscillator that I assumed can be changed to 3.58Mhz via control of the memory setting. 
Is it possinle that it is the UOC which has a problem?

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by ultrasonic™ on Mon Jun 23, 2014 4:59 pm

pwde din nga ang uoc sirjon.. pero pwde din sa data parameter yan.... ano nga pala ang chassis number ng uni.board mo..?  TH-2128A2.PCB ba ? may iilan akong dump dito na mga uniboard...  baka my sumakto

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Calibrator on Mon Jun 23, 2014 8:16 pm

ultrasonic™ wrote:pwde din nga ang uoc sirjon.. pero pwde din sa data parameter yan.... ano nga pala ang chassis number ng uni.board mo..?  TH-2128A2.PCB ba ? may iilan akong dump dito na mga uniboard...  baka my sumakto
That's good. Sige I'll check the chassis no. ... For now, di muna ko papasalamat ha?

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by dizon on Thu Jun 26, 2014 3:21 pm

paabang ako nito mga master. at patanong na rin. iyan po ba ang pagpasok ng service mode ng mga universal board na nabibili sa tindahan?

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

Post by Electro on Thu Jul 03, 2014 1:41 pm

basta china board dodong dizon. iyan talaga ang pagpasok.
master calibrator reprogram din hula ko dyan.

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Re: FUKUDA CHINA TV USING LA7693K 7N HOW TO ENTER SERVICE MODE

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