Service manuals, schematics, eproms for electrical technicians
MJM DJ-04 PAL KETNORMASITO SECAM TVHEZ
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Good luck to the repair!
Please do not offer the downloaded file for sell only use it for personal usage!
Looking for similar mjm manual?
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MJM DJ-04 SECAM TVHEZ DJ04 PAL DJ 04
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Relevant TV forum topics:
This elderly monster arrived with the error “ 4 blinks “ which the manual suggests is a power board fault
There are TWO power boards and a standby power board inside
On removing rear cover there were two swollen 220uf caps on the standby board, sadly replacing them the 4 blinks remained
Swapping the two power boards over[ as they look identical , gives a “ 2 Blink “ error , the limited info in the manual suggesting that the fault is on the lower board [ main 2 ]
Both boards have a PFC voltage of around 380 volts at switch on before the relays click out
I have done cold checks on both boards and there are no obvious differences
As the manual has only a block diagram of the power supply it’s difficult to be sure of values / voltages
Has anybody seen or worked one of these or similar beasts and managed to diagnose the problem
Thanks for looking
Regards Ken
There are TWO power boards and a standby power board inside
On removing rear cover there were two swollen 220uf caps on the standby board, sadly replacing them the 4 blinks remained
Swapping the two power boards over[ as they look identical , gives a “ 2 Blink “ error , the limited info in the manual suggesting that the fault is on the lower board [ main 2 ]
Both boards have a PFC voltage of around 380 volts at switch on before the relays click out
I have done cold checks on both boards and there are no obvious differences
As the manual has only a block diagram of the power supply it’s difficult to be sure of values / voltages
Has anybody seen or worked one of these or similar beasts and managed to diagnose the problem
Thanks for looking
Regards Ken
Sziasztok
Philips 47PFS7509/12 LCD TV kabelteve jellel par masodperc utan ujraindul. Jel nelkul nem indul ujra.
Gyari visszaallitas, ujratelepites megvolt.
Beleirtam USB-rol az utolso firmware-t (antenna nelkul), azt siman megcsinalta.
Probaltam hatteret lehuzni, hangszorok nelkul inditani, nemitani, stb, de valtozatlan.
Feszultsegek, amennyire a helyszinen meregettem, normalisnak tuntek.
Van-e otletetek erre?
Elore is koszonom.
Minden jot,
Janps
Philips 47PFS7509/12 LCD TV kabelteve jellel par masodperc utan ujraindul. Jel nelkul nem indul ujra.
Gyari visszaallitas, ujratelepites megvolt.
Beleirtam USB-rol az utolso firmware-t (antenna nelkul), azt siman megcsinalta.
Probaltam hatteret lehuzni, hangszorok nelkul inditani, nemitani, stb, de valtozatlan.
Feszultsegek, amennyire a helyszinen meregettem, normalisnak tuntek.
Van-e otletetek erre?
Elore is koszonom.
Minden jot,
Janps
Köszöntöm a Kedves Tanyalakókat !
Megszállottak - mint én is - becsülik a régi, jó készülékeket. Igen jó hangú SAMSUNG TV-m javításához szükségem lenne F650R . P03 számú ( 9D27 van még alatta ) sorkimenő - nagyfesz trafóra. További segítségként mellékelek egy képet is a panel alkatrész felőli részéről. Minden segítséget előre is megköszönök.
Üdv Mesterek !
Van itt ez a külső 12v-os tápegységű 17mb140 belű kistv.
A mainen van a tápcsatlakozója. Elégett, testzárlatos volt rajta az u19 pozszámú 6lábú smd stab.ic (stepdown conv.). A rajz szerint 1,5v csinál 12v-ból a procinak.Csere után a tv indul a szokásos villogással,háttér bekapcsol de kép nincs.Távval ki-be kapcsolható, kikapcsolás után folyamatosan villog a led.
Ja, az ic kimenetén csak 1,1v van kb. Proci nem melegszik...
Megpróbálnék még egy usb-s frissítést ha valakinek van hozzá kérem jelezze.
Köszönöm.
Van itt ez a külső 12v-os tápegységű 17mb140 belű kistv.
A mainen van a tápcsatlakozója. Elégett, testzárlatos volt rajta az u19 pozszámú 6lábú smd stab.ic (stepdown conv.). A rajz szerint 1,5v csinál 12v-ból a procinak.Csere után a tv indul a szokásos villogással,háttér bekapcsol de kép nincs.Távval ki-be kapcsolható, kikapcsolás után folyamatosan villog a led.
Ja, az ic kimenetén csak 1,1v van kb. Proci nem melegszik...
Megpróbálnék még egy usb-s frissítést ha valakinek van hozzá kérem jelezze.
Köszönöm.
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