Help - Panasonic TC-14S10P (relay on & off)
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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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Help - Panasonic TC-14S10P (relay on & off)
Need Help po mga master,
Panasonic TC-14S10p
Trouble: on & off ang Relay (hindi sya titigil hanggat naka-on ang main power switch)
meron sya supply galing sa secondary output ng transformer. +42v at +21v
pero yung +21v eh bumababa voltage pag nag on & off ang relay.
Then babalik sa normal voltage pag standby.
eto mga info:
TNP190274
Jungle: AN5192NK
System: MN152811T6K
Regulator: C4804A
Vertical: LA7837
H.out: D2499
Sound: AN5270
Eeprom: 24C01A
FBT: ?????? nabura
Nagpalit na ko ng dalawang ecap sa PSU (47uf/35v , 47uf?50v)
na-hang ko na din H.out
tried remove mem.IC
tried i-hang ang contact terminal ng relay. then saka palang nag-normal ang relay,
pero disconnected naman ang supply.
Baka po meron na naka-troubleshoot ng ganito, pa-help po mga master. Thanks
Panasonic TC-14S10p
Trouble: on & off ang Relay (hindi sya titigil hanggat naka-on ang main power switch)
meron sya supply galing sa secondary output ng transformer. +42v at +21v
pero yung +21v eh bumababa voltage pag nag on & off ang relay.
Then babalik sa normal voltage pag standby.
eto mga info:
TNP190274
Jungle: AN5192NK
System: MN152811T6K
Regulator: C4804A
Vertical: LA7837
H.out: D2499
Sound: AN5270
Eeprom: 24C01A
FBT: ?????? nabura
Nagpalit na ko ng dalawang ecap sa PSU (47uf/35v , 47uf?50v)
na-hang ko na din H.out
tried remove mem.IC
tried i-hang ang contact terminal ng relay. then saka palang nag-normal ang relay,
pero disconnected naman ang supply.
Baka po meron na naka-troubleshoot ng ganito, pa-help po mga master. Thanks
Blackrose777- AAA Battery
- Posts : 3
Join date : 2020-04-14
Re: Help - Panasonic TC-14S10P (relay on & off)
may B+ ka na ba? pa post
Hertz- Admin
- Posts : 1822
Join date : 2010-08-12
Age : 43
Location : Cagayan De Oro City
Re: Help - Panasonic TC-14S10P (relay on & off)
Wala po B+
kaya di makapag osc ung FBT.
dahil bumibitiw relay once na mag-o-on na sya.
halos na test ko na din lahat ng parts sa palibut ng C4804A.
Balak ko sana palitan ung NEC2501 at SE090, pero wala pa ko replacement eh.
kaya di makapag osc ung FBT.
dahil bumibitiw relay once na mag-o-on na sya.
halos na test ko na din lahat ng parts sa palibut ng C4804A.
Balak ko sana palitan ung NEC2501 at SE090, pero wala pa ko replacement eh.
Blackrose777- AAA Battery
- Posts : 3
Join date : 2020-04-14
Re: Help - Panasonic TC-14S10P (relay on & off)
nag po protect siguro yan lalot kung normal ang mga supply mo.
download ka ng diagram para mas ma troubleshoot mo yan
PANASONIC Chassis MX-3
download ka ng diagram para mas ma troubleshoot mo yan
PANASONIC Chassis MX-3
- Code:
https://www.4shared.com/postDownload/lMhkcQCEce/TX-2150T__MX-3_chassis_.html
Hertz- Admin
- Posts : 1822
Join date : 2010-08-12
Age : 43
Location : Cagayan De Oro City
Re: Help - Panasonic TC-14S10P (relay on & off)
unahin mo muna e check ang 12V supply ng Relay baka pumapalya. dumadaan iyan ng diode. puwede direct replace mo baka may leak. Tapos sundan mo ang pin 24 ng system con
Hertz- Admin
- Posts : 1822
Join date : 2010-08-12
Age : 43
Location : Cagayan De Oro City
Re: Help - Panasonic TC-14S10P (relay on & off)
Salamat Master Hertz sa diagram,
Na-trouble shoot ko na, may leak ang diode D805 na connected sa relay, replace ko lang ng RU2, then nag-power na ang Tv, gumagana ng maayos picture at sound sa Audio/Video pag nag-play ako ng DVD player.
Pero pag sa tuner na, picture na lang at wala ng sound. humming nlang naririnig sa speaker pero may volume sya, nahihinaan at nalalakasan ung pag-hum
any idea po sa problem?
Na-trouble shoot ko na, may leak ang diode D805 na connected sa relay, replace ko lang ng RU2, then nag-power na ang Tv, gumagana ng maayos picture at sound sa Audio/Video pag nag-play ako ng DVD player.
Pero pag sa tuner na, picture na lang at wala ng sound. humming nlang naririnig sa speaker pero may volume sya, nahihinaan at nalalakasan ung pag-hum
any idea po sa problem?
Blackrose777- AAA Battery
- Posts : 3
Join date : 2020-04-14
Re: Help - Panasonic TC-14S10P (relay on & off)
puede may problema mismo sa tuner, SAW filter, Band Sw at hanggang Chroma Jungle. sa pag proseso ng Sound.
monitor mo muna ang pin 28 ng Jungle kung malinaw ba ang tunog o dyan palang may problema na. gamit ka ng Scope o earphone.
pag may marumi ay isaisahin mo ang RF section. nandyan ang Problema or mismong Jungle ic
monitor mo muna ang pin 28 ng Jungle kung malinaw ba ang tunog o dyan palang may problema na. gamit ka ng Scope o earphone.
pag may marumi ay isaisahin mo ang RF section. nandyan ang Problema or mismong Jungle ic
Hertz- Admin
- Posts : 1822
Join date : 2010-08-12
Age : 43
Location : Cagayan De Oro City
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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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