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Author Topic: help sharp primo no power  (Read 638 times)

Offline soundbass67

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help sharp primo no power
« on: May 09, 2012, 11:48:20 AM »
mga bossing newbie lang kase ako sa pagrerepair ng tv no power sya pero pag on may na tunog na tik tik tik.
action taken replace ic str5653 ang 1 capacitor lobo na kase but still no luck.san pa kaya tama nito?
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help sharp primo no power
« on: May 09, 2012, 11:48:20 AM »

Offline mcleod

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Re: help sharp primo no power
« Reply #1 on: May 09, 2012, 12:50:33 PM »
Quote from: soundbass67 on May 09, 2012, 11:48:20 AM
mga bossing newbie lang kase ako sa pagrerepair ng tv no power sya pero pag on may na tunog na tik tik tik.
action taken replace ic str5653 ang 1 capacitor lobo na kase but still no luck.san pa kaya tama nito?

check power plug, fuse, Horizontal Ouput Transistor. check other regulators 5 volts etc. check mo resistors and diodes.
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Re: help sharp primo no power
« Reply #1 on: May 09, 2012, 12:50:33 PM »

Offline soundbass67

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Re: help sharp primo no power
« Reply #2 on: May 09, 2012, 01:28:14 PM »
boss pano ba mag voltage.bago lang kase ako basic electronics lang kinuha ko.
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Re: help sharp primo no power
« Reply #2 on: May 09, 2012, 01:28:14 PM »

Offline ultrasonic™

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Re: help sharp primo no power
« Reply #3 on: May 09, 2012, 01:30:28 PM »

parang may heavy load sa secondary out ng PSU...

try mu munang isolate ang probz...

disable first the horizontal & PSU (power supply unit)
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Re: help sharp primo no power
« Reply #3 on: May 09, 2012, 01:30:28 PM »

Offline soundbass67

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Re: help sharp primo no power
« Reply #4 on: May 09, 2012, 01:45:01 PM »
may alam ako sa pagcheck ng pyesa kaso hindi ko alam kong pano mag voltage check newbie palang po sa electronics basic lang kasi kinuha ko...sana madami akong matutunan sa pagtambay ko dito...
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Re: help sharp primo no power
« Reply #4 on: May 09, 2012, 01:45:01 PM »

Offline ultrasonic™

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Re: help sharp primo no power
« Reply #5 on: May 09, 2012, 02:30:00 PM »
palitan ang technician ;D
jokz lng  TS


ok ito nlng muna check mu muna ang H-out tranny

walang ibang mukhang transistor jan na naka heat sink (aluminum) na malapit sa flybak
like this:


baka shorted na yan...
anu pala ang exact model or chassis number ng Primo mu ?
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Offline soundbass67

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Re: help sharp primo no power
« Reply #6 on: May 09, 2012, 02:45:46 PM »
mam bago pa lang tech papalitan na agad...
mam thanks sa info di ko tanda kong ano model...sk pede p pm ng YM u pr pag ol kaya hingi me ng idea...san kay may mga booklet ng sa tv repair pati ung pagcheck ng SMPS.
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Offline charlie

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Re: help sharp primo no power
« Reply #7 on: May 17, 2012, 01:27:43 PM »
Quote from: soundbass67 on May 09, 2012, 02:45:46 PM
mam bago pa lang tech papalitan na agad...
mam thanks sa info di ko tanda kong ano model...sk pede p pm ng YM u pr pag ol kaya hingi me ng idea...san kay may mga booklet ng sa tv repair pati ung pagcheck ng SMPS.
payong kapatid, sana me diagram ka sir. mahirap magturo ng walang idea ang nagtatanong. makatulong if...marunong kang magbasa ng diagram. o alam mo ang block diagram ng ginagawa mo.  mag ojt ka kaya sir para matuto ka. salamat
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Offline MX45

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Re: help sharp primo no power
« Reply #8 on: May 18, 2012, 05:03:14 PM »
Quote from: soundbass67 on May 09, 2012, 01:45:01 PM
may alam ako sa pagcheck ng pyesa kaso hindi ko alam kong pano mag voltage check newbie palang po sa electronics basic lang kasi kinuha ko...sana madami akong matutunan sa pagtambay ko dito...


Sis. basic din sa electronics ang mag measure ng voltages.
hagilapin mo yung B+ line nya. at gaya ng sinabi sa taas e isolate mo muna ang Horizontal ( hung mo muna B+ ng Flyback pin ) power on kung may Titk tik pa? pag meron parin baka may aswang na.. ;D..
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Offline mcleod

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Re: help sharp primo no power
« Reply #9 on: May 18, 2012, 06:55:23 PM »
Quote from: soundbass67 on May 09, 2012, 02:45:46 PM
mam bago pa lang tech papalitan na agad...
mam thanks sa info di ko tanda kong ano model...sk pede p pm ng YM u pr pag ol kaya hingi me ng idea...san kay may mga booklet ng sa tv repair pati ung pagcheck ng SMPS.
eto basa ka dito sis, hanapin mo din yung kay Asimo baka may pulot ka:

http://www.electronicslab.ph/forum/index.php?topic=33431.0

pede na din ito may picture pa:

http://www.electronicrepairguide.com/voltage-testing.html

may ebook nito dito kaso di legall kay hanapin mo na lang.

ako kasi kay sam nag - aral kahit medyo luma na aplikable lahat iyan:

http://repairfaq.ece.drexel.edu/sam/tvfaq.htm


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Offline Disabled

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Re: help sharp primo no power
« Reply #10 on: May 18, 2012, 06:59:41 PM »
baka ung 680 ohms na naman to? hula lang ;D
iba pala, sub lang muna..
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Offline junrosido

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Re: help sharp primo no power
« Reply #11 on: May 23, 2012, 09:23:23 PM »
hello bro ako si jun (master ken) mahirap talagang magsimula sa electronics pero mapawi din yan sa lubos na tiyaga tol ako din ay dumaan sa ganito.ito ung 2ng libro na kung saan ako natuto TV REPAIRS FOR BEGINNERS nakalimutan ko na ung author nito but ask d whole cover title to the national bookstore book keeper.at itong COMPLETE TV SERVICING HANDBOOK by Walther H.Buchsbaum,Sc.D. revised by John P.Steiner still sa national bookstore ito just inquire na lang tol.
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Offline junrosido

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Re: help sharp primo no power
« Reply #12 on: May 23, 2012, 09:23:31 PM »
hello bro ako si jun (master ken) mahirap talagang magsimula sa electronics pero mapawi din yan sa lubos na tiyaga tol ako din ay dumaan sa ganito.ito ung 2ng libro na kung saan ako natuto TV REPAIRS FOR BEGINNERS nakalimutan ko na ung author nito but ask d whole cover title to the national bookstore book keeper.at itong COMPLETE TV SERVICING HANDBOOK by Walther H.Buchsbaum,Sc.D. revised by John P.Steiner still sa national bookstore ito just inquire na lang tol.
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Offline junrosido

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Re: help sharp primo no power
« Reply #13 on: May 23, 2012, 09:45:42 PM »
sa mga electronics veterans and rookies.sa pag check ng mga power supplies low-hi live or cold da best na gmitin nyo ay ung isolation transformer (220v primary/110-130v secondary) kahit na hawakan nyo ang board na nakasaksak sa wall di kayo makukuryente.basta one hand testing lang keep this on practice.magparewind kayo kung walang commercial type nito.
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Offline junrosido

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Re: help sharp primo no power
« Reply #14 on: May 23, 2012, 09:54:41 PM »
sa mga electronics veterans and rookies.sa pag check ng mga power supplies low-hi live or cold da best na gmitin nyo ay ung isolation transformer (220v primary/110-130v secondary) kahit na hawakan nyo ang board na nakasaksak sa wall di kayo makukuryente.basta one hand testing lang keep this on practice.magparewind kayo kung walang commercial type nito.
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Offline junrosido

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Re: help sharp primo no power
« Reply #15 on: May 23, 2012, 10:09:21 PM »
 Master ken to soundbass.ito ung hints para matuntun mo ang isang dc supply una.tignan mo ang line capacitor at rectifier diode na konektado sa isa't isa just like din ito sa una nyong project na converter/charger di ba? consist sys ng rect.diode at capacitor? un na yun.now if u want to know wat d actual volt of a circuit just look d capacitor voltage capacitance ex.2,200uf/16v ang expected voltage rate nito ay 12v-14v un na isa pa un 1000uf/25v ang expected na volt rate nito ay around 16v-18v just point ur probes across dis capacitors note their polarities.
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Offline junrosido

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Re: help sharp primo no power
« Reply #16 on: May 23, 2012, 10:10:32 PM »
 Master ken to soundbass.ito ung hints para matuntun mo ang isang dc supply una.tignan mo ang line capacitor at rectifier diode na konektado sa isa't isa just like din ito sa una nyong project na converter/charger di ba? consist sys ng rect.diode at capacitor? un na yun.now if u want to know wat d actual volt of a circuit just look d capacitor voltage capacitance ex.2,200uf/16v ang expected voltage rate nito ay 12v-14v un na isa pa un 1000uf/25v ang expected na volt rate nito ay around 16v-18v just point ur probes across dis capacitors note their polarities.
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Offline Disabled

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Re: help sharp primo no power
« Reply #17 on: May 23, 2012, 10:13:39 PM »
^ bawal po double posting :)
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Re: help sharp primo no power
« Reply #17 on: May 23, 2012, 10:13:39 PM »
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