Sanyo ST-21SS1KS abnormal audio output

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Sanyo ST-21SS1KS abnormal audio output

Post by Lenaren on Sun Jun 15, 2014 4:06 pm

Master help po!!! Problema po ng TV mahinang audio lang po ang maririnig sa speakers bot AV and tuner mode... kailangan idikit mo ung tenga mo sa speaker para marinig mo ang tunog kahit full volume na...

Eto lang po ang mga nagawa ko...

1. palit ng audio IC - wala pa rin
2. VCC reading - 9V DC
3. sinubukan ko rin po lagyan ng audio signal sa input ng audio IC malakas naman po tunog ng output

Ano po kaya problema nito?... Possible po ba na corrupted na EEPROM nito o mismo ung UOC na ang may tama?

Inputs please!!!  Thanks

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Re: Sanyo ST-21SS1KS abnormal audio output

Post by Hertz on Mon Jun 16, 2014 8:21 pm

baka kaya lang yan ayusin sa service mode. hold menu + press 1 sa remote para makapasok. subukan galawin ang item na may kinalaman sa audio

item 003 - AMUTE Disable audio outputs
item 092 - STRAP - Select sound trap ON/OFF
item 117 - VOLFL - Enable volume filter
item 118 - VOL L - Customer L-ch volume control
item 119 - AUDSW - Select audio input signal
item 121 - SRCNT- Select surround effect
item 123 - MONOM - Enable mono input mode
item 124 - VOL R - Customer R-ch volume control
item 125 - TOATT - Enable tone attenuator
item 126 - TBOST - Select Boost/Cut of treble tone control
item 127 - TRGAI - Customer treble gain control
item 128 - PEST - Pseud Stereo
item 129 - BBGOST - Select Boost/Cut of bass tone control
item 130 - BAGAI - Customer bass gain control
item 169 - OPT1- OPTION1
item 170 - OPT2 - OPTION2
item 194 - VOL G0 - Volume Gain 0
item 195 - VOL G1 - Volume Gain 1
item 196 - VOL G2 - Volume Gain 2
item 197 - VOL G3 - Volume Gain 3

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Re: Sanyo ST-21SS1KS abnormal audio output

Post by ultrasonic™ on Tue Jun 17, 2014 11:35 am

agreed.. unahin muna ang software side (eeprom parameter)
bago ang hardware side (uoc).. pwde ngang eeprom lng yan sis... kng sa hardware nmn.. pwede mo pang gamitin ang another option bago palit ng uoc. try mo ang spare pin na S.out nya.. from pin 57 lipat mo sa pin 58.. or series ka ng coupling ecaps jan para mas madali matest...

eto nga pala ang mapa ng Chassis AC8-A
bka mkatulong

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Re: Sanyo ST-21SS1KS abnormal audio output

Post by Lenaren on Tue Jun 17, 2014 1:18 pm

Master OK na po ang unit!!!...  Item 169 OPT1 po may problema...

Master kung sakaling e-series ko po ang  pin57 and pin58, ano po value ng e-caps ang ilagay ko? para dagdag kaalaman lang po....

1+ pogi points po sa inyo.....

Salamat!!!!

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Re: Sanyo ST-21SS1KS abnormal audio output

Post by ultrasonic™ on Tue Jun 17, 2014 1:28 pm

1uf-10uf/50v pwde na jan sis... btw.. congratz na pala...  ^_^

nahuli pa tuloy ang eeprom files na kinalkal ko pa sa baol  T_T

Sanyo ST-21SS1KS Chassis AC8-A, 1AA4B10S050A0
bka mkatulong pa rin to dito.. someday  ^_^

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Re: Sanyo ST-21SS1KS abnormal audio output

Post by alvinquimbo on Mon Jun 23, 2014 9:01 pm

congratulations

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Re: Sanyo ST-21SS1KS abnormal audio output

Post by Electro on Thu Jul 03, 2014 2:39 pm

lupit talaga ng mga master +1

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Re: Sanyo ST-21SS1KS abnormal audio output

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