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The Philippine Electronics and Technology Forum > Electrical and Electronics Repair > Analog and Mixed Signal Device Repair (Electronics Technician Forum) > Television Repair > Samsung TV Sets > Samsung 21inch CT-5073V
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Author Topic: Samsung 21inch CT-5073V  (Read 4965 times)
thorshz
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ijibana
« on: July 05, 2009, 05:34:26 PM »
Mga master,
Need help, tanong ko lang kung meron kayo schematic for CT-5073V or tanong ko lang kung ano value ng R807 and R408, burnt na ksi yung resistors, di na mabasa.
salamat...
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« on: July 05, 2009, 05:34:26 PM »
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AbangLingkod
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walang EKSPERTO sa BAGOng Modelo.
« Reply #1 on: July 05, 2009, 05:44:42 PM »
sir ano po ba chassis number nyan?

sa supply po cguro ng vertical yan..?
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thorshz
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ijibana
« Reply #2 on: July 05, 2009, 05:58:37 PM »
eto cguro chassis number AA41-10590A, resistor sya sir papuntang flyback ABL pin. Kasi ang probelma nitong TV , ON/OFF ng paulit-ulit.
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AbangLingkod
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« Reply #3 on: July 05, 2009, 06:18:58 PM »
CT 5039 ang nasa kin..
yung R408 po b ang sa ABL?
(ewan ko kung pareho,,connected sa 2 100k- resistor?)

yung R807 sa vert section..

ganun yung hawak kong diagram sir..


baka yung ibang members meron..
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ijibana
« Reply #4 on: July 05, 2009, 06:29:11 PM »
sir, opo R408 yung papuntang ABL pero walang 2 100k na resistor.
yung R807 papunta naman sa 125V ng flyback
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AbangLingkod
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« Reply #5 on: July 05, 2009, 08:08:21 PM »
sir ano po ba FBT at regulator number nyan?sir sa pin ba ng flybak mismo naka conect yung R408? kadalasan 1k yun..

try ko maghanap....ang gulo kasi ng mga files ko... Grin
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ijibana
« Reply #6 on: July 05, 2009, 08:29:03 PM »
sir, yung FBT hindi ko pa nakuha, eto yung number ng regulator SMR40000
D2499 yung HOT
meron din syang KA7631 na multi-out regulator.
yung 408 nakakabit mismo sa ABL pin
yung 807 naman sa 125v ng flyback
Salamat...
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snider
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Hi.
« Reply #7 on: July 05, 2009, 09:08:41 PM »
sir ito po nagkalkal pa ako ng schematic kahit gabi na,,R807 12k papnta tuner 33v,R408 1k naka series sa R411 at R412 un ang para sa AVL.

pero kung auto shut off sira ng tv malayo sa tinatanong mo kasi kahit wala un mag power pa din ung tv wala lang picture.

try mo check B+ kung tama
check mo din ung H-Out kung umiinit pag mainit na mainit na baka sira na FBT mo un ang kadalasan sira nyan,pwede din KA2163 ang sira.
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thorshz
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ijibana
« Reply #8 on: July 06, 2009, 09:02:24 PM »
Maraming salamat sir!..
Nabasa ksi ng ulan at na-power-on. Bale yung dalawang resistor ksi nakita kong sunog na sunog.
on-off lang sya paulit ulit pag nag press ng pwer button.
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snider
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Hi.
« Reply #9 on: July 06, 2009, 10:18:12 PM »
check m nalang  muna ung sinabi ko.madali lang nmn irepair ung model na yan
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thorshz
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ijibana
« Reply #10 on: July 08, 2009, 09:19:41 PM »
sir.., nung pinalitan ko yung R807, pag-on ko ng TV nasunog ulit..., hindi ko pa nachek yung B+
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Hi.
« Reply #11 on: July 08, 2009, 10:53:23 PM »
sira na FBT nyan kung nasunog ulit palitan muna
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thorshz
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ijibana
« Reply #12 on: July 09, 2009, 06:59:34 PM »
sir eto yung details..
nag-sstandby sya, pag-pindot ng ON nasusunog R08, then pag-ala R08 nag-hhighvoltage mga 1 second tapos may matinis na tunog then eto yung mga measurement...
FBT pins..
pin 180V =0V
pin 125V =175V
pin ABL =  175V
pin 15V =0v
pin 24v = 0v

HOT
Collector = 150V going 175V pag pindot ng ON
Emitter 0V
Base 0v

KA7631
Pin1 Vin1 12V
Pin2 Vin2 12V
Pin 8 Output1 8V =correct
Pin 9 Output2 5V =correct

Sir baka may pin voltages ka ng SMR40000 ala kasi ako makuha datasheet and schematic.
salamat!
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Hi.
« Reply #13 on: July 09, 2009, 11:57:25 PM »
bakit my 175v sa FBT pi ABL,sira na FBT nyan palita muna mura lang nmn replacement.

sakit talga samsung mahina FBT
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« Reply #14 on: July 10, 2009, 06:31:17 PM »
Quote from: ijibana on July 09, 2009, 06:59:34 PM
sir eto yung details..
nag-sstandby sya, pag-pindot ng ON nasusunog R08, then pag-ala R08 nag-hhighvoltage mga 1 second tapos may matinis na tunog then eto yung mga measurement...
FBT pins..
pin 180V =0V
pin 125V =175V
pin ABL =  175V
pin 15V =0v
pin 24v = 0v

HOT
Collector = 150V going 175V pag pindot ng ON
Emitter 0V
Base 0v

KA7631
Pin1 Vin1 12V
Pin2 Vin2 12V
Pin 8 Output1 8V =correct
Pin 9 Output2 5V =correct

Sir baka may pin voltages ka ng SMR40000 ala kasi ako makuha datasheet and schematic.
salamat!


sir kng nagpalit kng ng SMR4000 palit ka din ng HIS tapos capacitor 10uf  and 25v kng d ako nagkakamali tsaka 120k resistor line ng b+ mo baka change value na / pa check din pla ng R2
KN & R2KY diode bka leak na din kc kapag isa sa 2 may leaknagkakaroon yan ng hasing sound..

tas kng napalitan muna mga yan try u hang FBT, H-out, tax kng may masukat ka ng 115v sa B+ mu & power on at kapag blinking lng meaning may problema nga FBT mu..thanks and sana makatulong... Cheesy Cheesy
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thorshz
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ijibana
« Reply #15 on: July 11, 2009, 11:32:26 PM »
sir napalitan ko na SMR4000 pati HIS, HOT and FBT, nag-on na sya nang tuloy-tuloy nung pinalitan ko Vertical IC nya pero nasusunog pa rin 1k resistor papuntang ABL ng flyback, so kahit ala yung resistor na yun nag-on naman TV. Pero may problema pa kasi walang 24V, 15V and 180V galing ng FBT. 125V lang po meron and yung mga direct sa supply tulad ng 9V 5V and 33V. ano po bang sira nito....
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sEPh
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« Reply #16 on: July 12, 2009, 09:54:23 PM »
Quote
sir napalitan ko na SMR4000 pati HIS, HOT and FBT, nag-on na sya nang tuloy-tuloy nung pinalitan ko Vertical IC nya pero nasusunog pa rin 1k resistor papuntang ABL ng flyback, so kahit ala yung resistor na yun nag-on naman TV. Pero may problema pa kasi walang 24V, 15V and 180V galing ng FBT. 125V lang po meron and yung mga direct sa supply tulad ng 9V 5V and 33V. ano po bang sira nito....
baka open yung mylar capacitor,yung nakakabit sa ABL to ground.kaya nasusunog yung resistor.
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sEPh
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« Reply #17 on: July 12, 2009, 10:00:28 PM »
bro,ilang GROUND ba mayron sa pins ng flyback?
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« Reply #18 on: July 12, 2009, 10:17:06 PM »
Quote from: ijibana on July 09, 2009, 06:59:34 PM
sir eto yung details..
nag-sstandby sya, pag-pindot ng ON nasusunog R08, then pag-ala R08 nag-hhighvoltage mga 1 second tapos may matinis na tunog then eto yung mga measurement...
FBT pins..
pin 180V =0V
pin 125V =175V
pin ABL =  175V
pin 15V =0v
pin 24v = 0v

HOT
Collector = 150V going 175V pag pindot ng ON
Emitter 0V
Base 0v

KA7631
Pin1 Vin1 12V
Pin2 Vin2 12V
Pin 8 Output1 8V =correct
Pin 9 Output2 5V =correct

Sir baka may pin voltages ka ng SMR40000 ala kasi ako makuha datasheet and schematic.
salamat!


hulahulahooop... hehehe. sir may sira ang fbt mo... kaya wala kang masukat n boltahe ng fbt mo kase nag protect xa......double check mo sir mga load nf fbt mo.... or the supply itself...hope makagulo sa isip hehehe... Grin



pahabol chek mo din kaya sigl sa base ng HOT mo....
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thorshz
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ijibana
« Reply #19 on: July 14, 2009, 09:01:06 PM »
Quote from: sEPh on July 12, 2009, 10:00:28 PM
bro,ilang GROUND ba mayron sa pins ng flyback?
isang ground lang sir...
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