sony tv KV-21JDR1 shutdown problem
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ultrasonic™
triac
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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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sony tv KV-21JDR1 shutdown problem
mga sis patulong na naman po ako ito po yung problema ng tv na ito kapag sinaksak yung plug ON agad ang tv without touching the power button,ang napansin ko lang when i voltage check,ON ang 9V kaagad at nagvoltagedrop din agad.Ang lahat ng voltage ay stable except sa 9V.Ano po kaya sira nito?nag resolder na ako lahat,tapos bago na po yung vertical IC.salamat po sa lahat..
voltage check:
B+-115V
12V
5V
9V ito po yung naka ON agad at nagvoltage drop din agad..
voltage check:
B+-115V
12V
5V
9V ito po yung naka ON agad at nagvoltage drop din agad..
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
parang short or leak tranny..
double check nlng sis...
kng under protect nmn ang unit... try mung disable.. focus on system con pin4, 10 & 43
bka madali..
double check nlng sis...
kng under protect nmn ang unit... try mung disable.. focus on system con pin4, 10 & 43
bka madali..
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im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
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Re: sony tv KV-21JDR1 shutdown problem
thanks sir ultra subukan ko po ito this coming saturday...
triac- 12V BATTERY
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Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
elang second mamatay...parang naka protic yata ha..chik mo sis yong risistor 1/8 sa vertical malapit pin-amp or ziner diode...
DJFEL- 24V BATTERY
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Re: sony tv KV-21JDR1 shutdown problem
@DJFEL 2 seconds lng ito sis drop agad ang 9V.. salamat po sis subukan ko rin yang idea mo....
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
yong lahat nasa vertical soyod lahat sis
DJFEL- 24V BATTERY
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Re: sony tv KV-21JDR1 shutdown problem
DJFEL wrote:elang second mamatay...parang naka protic yata ha..chik mo sis yong risistor 1/8 sa vertical malapit pin-amp or ziner diode...
agreed... pwde din ung 1/8w 1k-2.2k na nkaseries sa b+ to vert sect
_________________
6th member of STTM
former 2nd member
im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: sony tv KV-21JDR1 shutdown problem
@sir ultra paano po e disable iisa-isahin po ba?or sabay yung tatlo?
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
triac wrote:@sir ultra paano po e disable iisa-isahin po ba?or sabay yung tatlo?
pang iisahen mo sis..
DJFEL- 24V BATTERY
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Re: sony tv KV-21JDR1 shutdown problem
para malaman mo kong sa-an nang trouble..sondin mo lang yong pin yong sinabe ky sis ultra..
DJFEL- 24V BATTERY
- Posts : 1780
Join date : 2012-11-21
Age : 42
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Re: sony tv KV-21JDR1 shutdown problem
chk mo remote sensor[recieve]kng may nkaparallel na diode,chk f leak or shorted.automatic syang nag power on at shudown rin bigla,tama ba pagkaintindi ko?
arkin- D Battery
- Posts : 446
Join date : 2011-12-02
Re: sony tv KV-21JDR1 shutdown problem
agreed do the basic lagi.. kng kailangan isolate to minimize the suspect. gawin nlng (^_^
hlimbawa.. kng 9v ang di normal.. try unahin ang output,,, float output pin & observe.. pg same pa rin... ibalik ang output,,, input nmn ang subukan.. pg ganun pa din... tuktok ulit sa system con
hlimbawa.. kng 9v ang di normal.. try unahin ang output,,, float output pin & observe.. pg same pa rin... ibalik ang output,,, input nmn ang subukan.. pg ganun pa din... tuktok ulit sa system con
_________________
6th member of STTM
former 2nd member
im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: sony tv KV-21JDR1 shutdown problem
@sir DJFEL salamat po sa pagsagot..
@sir arkin salamat po sa mag idea nyo..
@sir ultra salamat din po sa turo nyo...
shorted po yung D1208 na zener diode kaya nagshutdown sya..
update ko lng po ito:OK na po ang 9V di na po nagshutdown..ang problema ko ngayon walang sound at raster,tapos continous bllinking sya..may nakalimutan ako na sabihin sa inyo tinamaan po ito ni sendong kaya marami putik sa loob..
ito pa po ang nagawa ko:
heater:4V
G2:520V
RGB sa jungle out:1V sila lahat
may nasukat naman din po ako sa C-board hindi po exact mga sir di ko po kc naisulay
200V-180V
1000V-800+ po ito
9V-9v
may idea po ba kayo mag sir kung ano pa po dapat E check?salamat..
@sir arkin salamat po sa mag idea nyo..
@sir ultra salamat din po sa turo nyo...
shorted po yung D1208 na zener diode kaya nagshutdown sya..
update ko lng po ito:OK na po ang 9V di na po nagshutdown..ang problema ko ngayon walang sound at raster,tapos continous bllinking sya..may nakalimutan ako na sabihin sa inyo tinamaan po ito ni sendong kaya marami putik sa loob..
ito pa po ang nagawa ko:
heater:4V
G2:520V
RGB sa jungle out:1V sila lahat
may nasukat naman din po ako sa C-board hindi po exact mga sir di ko po kc naisulay
200V-180V
1000V-800+ po ito
9V-9v
may idea po ba kayo mag sir kung ano pa po dapat E check?salamat..
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
ayoz kng ganun sis... zener diode sa amp buffer (^_^
nalinis mo na bang maigi ang buong board?
khit ba sa TV/AV mode walang reaction? wla bang OSD at sound?
try mong taasan pa ng kunti ang G2 kung lalabas ba ang retrace line.
at kalikot lagi sa mga tacts sw.
try mo ding edisable ang IK return "pin25 ng jungle" baka mkatulong.
cxa1464as eto tama?
nalinis mo na bang maigi ang buong board?
khit ba sa TV/AV mode walang reaction? wla bang OSD at sound?
try mong taasan pa ng kunti ang G2 kung lalabas ba ang retrace line.
at kalikot lagi sa mga tacts sw.
try mo ding edisable ang IK return "pin25 ng jungle" baka mkatulong.
cxa1464as eto tama?
_________________
6th member of STTM
former 2nd member
im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: sony tv KV-21JDR1 shutdown problem
parang ma baba ang G2 taasan mo to 600 to 700v..try mo lang..ma ok na yan..
DJFEL- 24V BATTERY
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Join date : 2012-11-21
Age : 42
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Re: sony tv KV-21JDR1 shutdown problem
@sir ultra malinis na po yung buong board,nakatulong po yung tinaasan ko yung G2,may raster na po magenta nga lang yung color at retrace,kaya sinuyod ko na ang C-board,may dalawang transistor na kinalawang at isang open na resistor,bibili pa po ako ng parts,D ko pa po disable yung IK palitan ko muna yung sirang parts sir ultra..Tama po kau sir ultra CXA1464AS
@sir DJFEL tinaasan ko po sir at malaking kasi may nakita na ako na raster very dim nga lang.
update ko po kayo lahat mga master kung ano ang magiging result nito..
@sir DJFEL tinaasan ko po sir at malaking kasi may nakita na ako na raster very dim nga lang.
update ko po kayo lahat mga master kung ano ang magiging result nito..
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
okis..pang hominto yong red blink..okis na yan..600 to 700v yong g2 na yan..yong sinabe ni sis untra..linesen mo yong CRT sukit yong sa elalem..
DJFEL- 24V BATTERY
- Posts : 1780
Join date : 2012-11-21
Age : 42
Location : SIUIJOR
Re: sony tv KV-21JDR1 shutdown problem
my display na pala... no need to condemn the IK prot sis (^_^
eto nlng ang gawin mo dhil magenta ang kulay... focus on C board direct sub mo ang resistor r701 = 680ohm 1/2W common probz iyan ng Sony...
pg di mwala, e mean pg di tumino ang display color
isali mo na din ang dlwang 100K 1/2W
at wag baliwalain at iwala sa suspect ang G2/screen trim.. (^_^
eto nlng ang gawin mo dhil magenta ang kulay... focus on C board direct sub mo ang resistor r701 = 680ohm 1/2W common probz iyan ng Sony...
pg di mwala, e mean pg di tumino ang display color
isali mo na din ang dlwang 100K 1/2W
at wag baliwalain at iwala sa suspect ang G2/screen trim.. (^_^
_________________
6th member of STTM
former 2nd member
im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: sony tv KV-21JDR1 shutdown problem
@sir ultra gagawin ko po yan.salamat po..sir ultra ano kaya ang exact value ng r313 at r341?malapit po ito sa jungle at kinalawang na rin...
@sir DJFEL salamat po..
@sir DJFEL salamat po..
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
wla ako mapa ka c na ri4rmat lahat...baka sis ultra my ron..
DJFEL- 24V BATTERY
- Posts : 1780
Join date : 2012-11-21
Age : 42
Location : SIUIJOR
Re: sony tv KV-21JDR1 shutdown problem
@sis triac based on the map ni yamashita
r341 = 33k
r313 = 1.2k / 1.8K di masxadong maaninag sa mapa...
scan lang kasi
eto full reference map: https://aelexian.forumotion.com/t239-sony-tv-model-mkii-jdr1-jsr1-jxr1
r341 = 33k
r313 = 1.2k / 1.8K di masxadong maaninag sa mapa...
scan lang kasi
eto full reference map: https://aelexian.forumotion.com/t239-sony-tv-model-mkii-jdr1-jsr1-jxr1
_________________
6th member of STTM
former 2nd member
im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Re: sony tv KV-21JDR1 shutdown problem
salamat po sir ultra..pwede ko bang palitan yung G2 trimmer ng ordinary trimmer,yung common po na walang knob?change value na rin po sya..
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
Re: sony tv KV-21JDR1 shutdown problem
^ yapz pwede yan sis..
_________________
6th member of STTM
former 2nd member
im always walking on the rain so that no one could see me crying
ultrasonic™- 24V BATTERY
- Posts : 4475
Join date : 2010-08-19
Age : 38
Location : Davao City
Hertz- Admin
- Posts : 1822
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Age : 43
Location : Cagayan De Oro City
Re: sony tv KV-21JDR1 shutdown problem
salamat po master hertz at master ultra...
triac- 12V BATTERY
- Posts : 792
Join date : 2011-04-28
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AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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