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Author Topic: Help NEC tv c-14r5 wala picture wala sound pero may light on  (Read 7965 times)

Offline gry43

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #40 on: April 15, 2008, 12:46:17 PM »
bro wala talaga channel 2 and 4 ang mga japanese tv, needs rechanneling o kya bili ka cable converter, A/v input na gagamitin mo

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #40 on: April 15, 2008, 12:46:17 PM »

Offline Mike

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #41 on: April 15, 2008, 12:49:00 PM »
Dati may channel 2 siya nun pinayos ko nawala channel 2 saka lumabo, kaya sinubukan ko na ako nalang mag aayos

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #41 on: April 15, 2008, 12:49:00 PM »

Offline danny

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #42 on: April 15, 2008, 01:39:23 PM »
so you mean na rechannel na ba yan noon? ???
danny

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #42 on: April 15, 2008, 01:39:23 PM »

Offline gry43

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #43 on: April 15, 2008, 02:04:29 PM »
Dati may channel 2 siya nun pinayos ko nawala channel 2 saka lumabo, kaya sinubukan ko na ako nalang mag aayos


ganyan talaga rechannel, ngdedepend sa ganda ng signal,pg weak ala talaga masasagap. pinaka the best ung cable converter, may sariling tuner at remote,pwede antenna or cable

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #43 on: April 15, 2008, 02:04:29 PM »

Offline jhamir

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #44 on: April 15, 2008, 08:15:18 PM »
@ techno08


common na nan ciguro sa isang manggawa na pag sinabihan check hor.outr meaning kasama na dun ang pull out......... at check kung ok ang parts...


e2 ang pagrechannel....


hanapin mo ung vhf loband rf oscilator sa tuner coil un bilangin mo kung ilang turns.... tandaan mo kung ilan then hanap ka ng mas maliit na magnetic wire gawa ka rin ng coil... ng ganun rin blang then using plastic precision na pang tuning o pang adjust sa coil while buhay ung unit... lagay mo sa mas mababang tuning.. hanapin mo ung channel 2....
merom nman  iba sa uhf kumukuha ng channel 2..  pra mas madali conert mo na lng.. paltan mo galing sa surplus korea pwede un basta tama pagkaka assign ng mga pins.... gud luck...
dampulay na.......

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #44 on: April 15, 2008, 08:15:18 PM »

Offline Siramiko

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #45 on: April 15, 2008, 09:51:58 PM »
@jhamir
 pasenya bro para kay mike yun , yung pangalan mo pala ang naisulat ko   :D
I shall return

Offline jhamir

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #46 on: April 16, 2008, 01:02:19 AM »
k lng bro nagulat nga ako.... cencia na rin.... gud am....!!!
dampulay na.......

Offline Mike

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #47 on: April 16, 2008, 12:12:58 PM »


Rewind Yung huli nag ayos nito  bago ako meron siya resoldered na mga pin sa IC201
nun kinuha kona yung TV after maayos nya wala na channel 2 at
malabo narin yong iba channel. yung sira bumalik rin after a 3 days
kaya nagpaturo ako sa inyo kung pano ito ayusin. at naayos nga sa
tulong nyo ang problema yung ginawa nun nag-ayos nito dati tinanggal nya.  :)

Take note OK ang antenna nito Tatlo Baron antenna star connection para
diko na iniikot antenna.at napakalinaw sa isa ko pa tv sa lahat ng channel.

@ jhamir maganda suggestion mo pero medyo naguguluhan ako ako ::) ng kaunti ano pa itsura nun?

pasinsya na ngayon lang ako nag-ayos ng tv sa computer monitor medyo naka-apat palang :)

Offline Mike

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #48 on: April 16, 2008, 12:19:07 PM »
Sorry sa lahat if makulit ako gusto ko matutu actually lahat ng suggestions nyo maganda  ;) ;)

Offline Red Sonjah

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #49 on: April 16, 2008, 12:41:55 PM »
Tuner Coil ano itsura nun?  :) alam ko coil  pero exact itsura diko alam
Nde mo kayang huliin ng mouse pointer mo :)

Offline Red Sonjah

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #50 on: April 16, 2008, 12:55:46 PM »

yan yata itsura nyan  Mike tama ba ako?
Nde mo kayang huliin ng mouse pointer mo :)

Offline Mike

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #51 on: April 16, 2008, 12:59:23 PM »
Salamat Jen ganda.

@jhamir alin iccheck ko jan at papalitan

salamat sa inyo lahat angbabait nyo

Offline electronic repairer

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #52 on: April 16, 2008, 05:34:11 PM »
Bro try to check voltage supply niya sa crt circuit., around 180 volts i encountered that type of problem..

try to change horizontal output baka leaky na sya,. minsan kasi ok sa pagtest then nag o overload during full operating voltage.. oh d kaya capacitor around HOT section baka mataas na equivalent series resistance niya...
Patience is the best attitude of an electronic repairer.

Offline jhamir

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #53 on: April 16, 2008, 06:49:27 PM »
he...he...he...nawala ung kuwit s gitna ng tuner at coil... cencia   he...he...he..   tama ung oscillator ng vhf kulang ung nkalabel my 2 band ang vhf ang lo at high band   focus ka sa loband pero dpat d ka muna ngpipihit sa mga if before mo gwin to kc lalo ka lng maliligaw ng landas... sa paggawa ng tv mo... palitan mo sukat at bilang ng lovhf oscillator coil... para mas bumaba ang freq. width ng loband mo
dampulay na.......

Offline Dennis

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #54 on: April 17, 2008, 12:46:13 PM »
Salamat


Mga bossing nakita ko yung fault kaya nagloloko kapag hanap ko yung channel NET25 at 5 nawawala yong 9,QTV,13 don sa 12v sa picture sa taas ay short siya sa others connection. Ngayon mayron na 7,studio23,Net25,9,13,QTV,5
at may color na sila lahat.yung 9 napansin ko rin sa channel 9 kapag ilipat ko sa channel 6 nandon rin ang channel 9 at malabo ang sound nya.
mga bossing made in thailand pala ang tv na ito pero yung character nya parang japanese pero nakalagay made in thailand so may pagkakaiba ba ito sa other japan tv sa channel setup up?

Yung sa LB Lahat ba papalitan ko yung coil sa picture sa taas? isa lang pinalitan ko sinubukan ko lang may kaunti pagbabago naging sensitive pero wala parin channel 2
Failure is not defeated, Unless you stop trying

OmegaByteŽ, ExplicitmindŽ, DMSoftwareŽ

Offline gry43

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #55 on: April 17, 2008, 04:55:25 PM »
Bro modified na pala yan, usually nilalagay nila ang channel 2 sa uhf band, try mo mg search sa uhf bka andun ang channel 2 ;)

Offline jhamir

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #56 on: April 20, 2008, 07:34:30 PM »
he...he...he... modified na yan bro... sure nsa uhf na ang channel 2 mo... ....nalikot na ang loob nyan.... kung talaga wala na paraan try mo mgpalit iba tuner ung hindi japanese....   gagana yan magkakaroon ka ng ch2 at 4 n nsa vhf lowband mismo....
dampulay na.......

Offline jhamir

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #57 on: April 20, 2008, 07:37:22 PM »
ok kung naaltan mo na try mo i align using plastic precision tool.... habang nakaabang sa screen... mapupuna mo umuusad ung freq... habang ginagalaw mo ung osc...
dampulay na.......

Offline Mike

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #58 on: April 21, 2008, 12:45:39 PM »
saan ba makakabili  pampalit nun. hehe may napancin pako tinatanggap lahat ng klase transistor basta PNP don sa baba ng oscillator na modified nila  :)

Offline jhamir

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Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #59 on: April 21, 2008, 01:04:34 PM »
khit ung mga surplus na korean pwede dyan ipalit dyan... sa junkshop minsan makakakita ka ng mga t na ganun rin klase   ang tuner....
dampulay na.......

Philippine Electronics Forum

Re: Help NEC tv c-14r5 wala picture wala sound pero may light on
« Reply #59 on: April 21, 2008, 01:04:34 PM »

 

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