LG no power problem... 14cc4rb-lz
+4
DJFEL
arkin
kchrysz15
Ahmadiloz
8 posters
AELEXIAN EMPIRE :: Analog and Mixed Signal Device Repair (Electronics Technician Board) :: (Electronics Technician Board) :: CRT TV REPAIR
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LG no power problem... 14cc4rb-lz
model: 14cc4rb-lz
ser. number: 008syzz57829
FBT: BSC25-0883
HOriz. : 2SC6093
Vert : LA 78040
FBT switching regulator: w6753
jungle: LG531
EEPROM: 02Q08 ? (im not sure)
anu po kaya ang posible na sira nito??
wlang B+
wla rin nka tambay na +5V...
no power talaga sya..
pero may raw B+ sya..
wla nga lng volage sa secondary
napalitan ko na ung
switching regulator: w6753, 2SC6093..
wala parin syang pwer...
posible po bang salarin ang FBT ????
pls reply mga masters!!!!
tnx...
ser. number: 008syzz57829
FBT: BSC25-0883
HOriz. : 2SC6093
Vert : LA 78040
FBT switching regulator: w6753
jungle: LG531
EEPROM: 02Q08 ? (im not sure)
anu po kaya ang posible na sira nito??
wlang B+
wla rin nka tambay na +5V...
no power talaga sya..
pero may raw B+ sya..
wla nga lng volage sa secondary
napalitan ko na ung
switching regulator: w6753, 2SC6093..
wala parin syang pwer...
posible po bang salarin ang FBT ????
pls reply mga masters!!!!
tnx...
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Re: LG no power problem... 14cc4rb-lz
hang u h-out, test ulit kng my b+ pnta FBT, kng wla check all resistor baka my open s primary.
kchrysz15- AAA Battery
- Posts : 44
Join date : 2012-07-28
Location : Camalig, Albay
Re: LG no power problem... 14cc4rb-lz
agree,f shorted yong h-out zero b+ nyan.@ahmadiloz:bakit my b+ pro wlang secondary.bka main or sa primary mo nsukat yan snabi mong b+
arkin- D Battery
- Posts : 446
Join date : 2011-12-02
LG no power problem...
kchrysz15 wrote: hang u h-out, test ulit kng my b+ pnta FBT, kng wla check all resistor baka my open s primary.
ung colector ba ng horiz trany sir???
salamat sa idea mo sir..
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
LG no power problem...
sa prim. nga sir arkin.arkin wrote: agree,f shorted yong h-out zero b+ nyan.@ahmadiloz:bakit my b+ pro wlang secondary.bka main or sa primary mo nsukat yan snabi mong b+
un ba ung tinatawag na raw B+???
sa main capcitor ko kasi nasukat un....
hehehe...
salamat sau sir...
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
LG no power problem...
Ahmadiloz wrote:
saan po kaya dito????
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Re: LG no power problem... 14cc4rb-lz
mula s power outlet gang dumating u s chopper x-4mer yan ung primary, check u lahat, pati opto-coupler
kchrysz15- AAA Battery
- Posts : 44
Join date : 2012-07-28
Location : Camalig, Albay
Re: LG no power problem... 14cc4rb-lz
hinde to na kita kay sis ultra...piro try ko baka ma sapol naten to..
DJFEL- 24V BATTERY
- Posts : 1780
Join date : 2012-11-21
Age : 42
Location : SIUIJOR
Re: LG no power problem... 14cc4rb-lz
ok ba primary supply neto...chik big ecap dyan..normal ba yan..paki soyod lahat nang risistor,diode baka my lick dyan...pang ok sa primary..paki chik B+ baka my open risistor dyan...
DJFEL- 24V BATTERY
- Posts : 1780
Join date : 2012-11-21
Age : 42
Location : SIUIJOR
LG no power problem...
DJFEL wrote: ok ba primary supply neto...chik big ecap dyan..normal ba yan..paki soyod lahat nang risistor,diode baka my lick dyan...pang ok sa primary..paki chik B+ baka my open risistor dyan...
ok nman lahat sa prim. sir FEL...
b+ lng at 5vsb ang wla....
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Re: LG no power problem... 14cc4rb-lz
na hang mo nba b+ mo,prang dpa yata. hang muna yan pra malaman mo kng wla nga ba b+.bka shorted h out mo.
arkin- D Battery
- Posts : 446
Join date : 2011-12-02
Re: LG no power problem... 14cc4rb-lz
sub? ask q lng @Ahmadilos ung bng filter cap. s primary may n estock n voltage F meron my open u s circuit u
kchrysz15- AAA Battery
- Posts : 44
Join date : 2012-07-28
Location : Camalig, Albay
LG no power problem...
kchrysz15 wrote: sub? ask q lng @Ahmadilos ung bng filter cap. s primary may n estock n voltage F meron my open u s circuit u
ahehehe,,,
ayy ,,
di ko lubos maintindihan sina sabi mo sis ehhh????
pki linaw nman??
kunting tyaga nlng to.....
makukuha ko rin ....
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
LG no power problem...
arkin wrote: na hang mo nba b+ mo,prang dpa yata. hang muna yan pra malaman mo kng wla nga ba b+.bka shorted h out mo.
sir arkin....
id ma hang ko na ung B+ ng FBT, dun rin ba ako susukat para sa B+ nya?
if meron man voltahe dito..
di po ba FBT ung salarin???
ksi pinalitan ko na tong horiz tranny ehh...
ksi shorted to..
pag test ko ulit ganun parin...
anu po ba kya ang posibleng salarin dito???
help nman po....
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Re: LG no power problem... 14cc4rb-lz
tama!don ka nga magtest ng b+.malamang my poblema nga sa fbt,pro hwag rin klimutang i-chek ulit ang h.out mo,kc f shorted ulit yan,my problema ang HV cicuit mo.sama mo na rin ibang parts dyan.
arkin- D Battery
- Posts : 446
Join date : 2011-12-02
Re: LG no power problem... 14cc4rb-lz
aq din yan din suspect q ung FBT ! test u n rin ung ibang parts like mylar cap. nk shunt s Horiz tranny, o kaya ung yock!
kchrysz15- AAA Battery
- Posts : 44
Join date : 2012-07-28
Location : Camalig, Albay
LG no power problem...
arkin wrote: tama!don ka nga magtest ng b+.malamang my poblema nga sa fbt,pro hwag rin klimutang i-chek ulit ang h.out mo,kc f shorted ulit yan,my problema ang HV cicuit mo.sama mo na rin ibang parts dyan.
FBT unsa sira sir aRkin....
kc nung na desolder ko ung FBT at tinanggal ko pa...
nag present ung B+ at Col....
as in stanby mode ulit sya....
kya lng parang ayw bilhan ng my ari :
namahalan cguro ng FBT bsc25-0883...
anu po kya ung replacement value nito????
tnxs sa tulong mo sir...
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
LG no power problem...
kchrysz15 wrote: aq din yan din suspect q ung FBT ! test u n rin ung ibang parts like mylar cap. nk shunt s Horiz tranny, o kaya ung yock!
mukhang ayaw nga bilhan ng FBT ng may ari ehhh/...
sayang lng nman...
maging dag'2 XP sana to sa akin....
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Re: LG no power problem... 14cc4rb-lz
flyback nga yan. dahil lumabas ang B+ mo.shorted na ang b+ at ground pin niya.Ahmadiloz wrote:
FBT unsa sira sir aRkin....
kc nung na desolder ko ung FBT at tinanggal ko pa...
nag present ung B+ at Col....
as in stanby mode ulit sya....
kya lng parang ayw bilhan ng my ari :
namahalan cguro ng FBT bsc25-0883...
anu po kya ung replacement value nito????
tnxs sa tulong mo sir...
pm mo si sir ultra para sa replacement
_________________
3rd member of STTM
former 4th member
Hertz- Admin
- Posts : 1822
Join date : 2010-08-12
Age : 43
Location : Cagayan De Oro City
Re: LG no power problem... 14cc4rb-lz
chek mo b+ to ground,kng my reading dyan 100% sira tlaga fbt mo.kng wla patest mo to confirm pra my reference kna next time.sakaling ok ang fbt mo,chek mo ulit h.out.visual check nga rin pla yoke mo...
arkin- D Battery
- Posts : 446
Join date : 2011-12-02
kchrysz15- AAA Battery
- Posts : 44
Join date : 2012-07-28
Location : Camalig, Albay
LG no power problem...
Hertz wrote:flyback nga yan. dahil lumabas ang B+ mo.shorted na ang b+ at ground pin niya.Ahmadiloz wrote:
FBT unsa sira sir aRkin....
kc nung na desolder ko ung FBT at tinanggal ko pa...
nag present ung B+ at Col....
as in stanby mode ulit sya....
kya lng parang ayw bilhan ng my ari :
namahalan cguro ng FBT bsc25-0883...
anu po kya ung replacement value nito????
tnxs sa tulong mo sir...
pm mo si sir ultra para sa replacement
ok salamat po sIr hertz....
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
LG no power problem...
arkin wrote: chek mo b+ to ground,kng my reading dyan 100% sira tlaga fbt mo.kng wla patest mo to confirm pra my reference kna next time.sakaling ok ang fbt mo,chek mo ulit h.out.visual check nga rin pla yoke mo...
meron na syang B+ sir nung tinanggal ko ung FBT.....
mukhang ok pa nman ung yoke sir...
ilang voltahe ba kadalasan ung h-out sir???
salamat po sir...
Ahmadiloz- C Battery
- Posts : 169
Join date : 2013-07-25
Age : 32
Location : cebu
Re: LG no power problem... 14cc4rb-lz
sa pin ng collector singkatulad lang iyan ng b+ mo
sa pin ng emitter ay zero dahil naka ground ito
sa pin naman ng base nasa 1-3vac iyan
kong nakatanggal ngayon ang flyback. normal na wala kang supply sa collector pin dahil naka series ang flyback coil dyan. sa madaling salita. pwede sanhi ng pagkakawala ng b+ ang shorted na h-out. kaya check mong maiigi kong ok pa ba ang h-out mo
sa pin ng emitter ay zero dahil naka ground ito
sa pin naman ng base nasa 1-3vac iyan
kong nakatanggal ngayon ang flyback. normal na wala kang supply sa collector pin dahil naka series ang flyback coil dyan. sa madaling salita. pwede sanhi ng pagkakawala ng b+ ang shorted na h-out. kaya check mong maiigi kong ok pa ba ang h-out mo
_________________
3rd member of STTM
former 4th member
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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