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How to repair the switching-mode power supply of a television?

A; By wearing a wrist band that defends against static recharge b; By wearing a pair of shoes that have isolated soles c; We have to take care of plugging in the electric plug, because the grounding of the network has to get to the chassis of the equipment d; By using an isolation transformer

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Manual for tv 237-t12

Try Googling (brand)(237-t12)(manual) without parens.

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Philips model 52pfl5704d/f7 no picture and no sound

Could be an open internal fuse or power supply failure

Jun 12, 2017 | Philips Televison & Video

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Lg 60pn6500 no picture no sound red stand by light comes on

Hello Virgil Hoppe,

Never ever try to repair these things without a anti-static wrist band...!! (below)... About $6...(very serious).

A tiny spark you might not even feel.. is the PRIMARY REASON every semiconductor box you have EVER looked at says
"No USER serviceable components inside"...

That spark can totally DESTROY almost every SEMICONDUCTOR ever made... Professional
HANDLING will always be done by ESD (electro-
static discharge) trained personnel...


Your POWER BOARD is most likely the problem...
(Red STBY is a really good sign: MOST LIKELY not your
MAIN-BOARD (but still... just an educated guess)).

>> ALWAYS WEAR that anti static wrist strap

>> VERIFY your replacement board number yourself...

> TAKE LOTs of PICTURES (and notes if necessary)
put EVERY wire & fastener EXACTLY BACK...!!

> Force nothing: if a connection does not easily
come apart get a jewelers loupe and a bright light...
Look VERY CLOSELY for a pinch clamp or catch
lever to release...

(don't forget you will need to select a SOURCE
on initial power-up).

You will be proud.

Sears ... eBay, even AMAZON HAS
replacement boards... I regularly use eBay...
(but I'm only buying USA circuit boards)

Hope this helps.

LG 60PN6500 Power Supply EAX64880001/6 EAY62812701 #P10092 - #P10092

Shop jimmy (premier supplier (out of stock))

lg-eay62812701-power bd, REPAIR KIT appprox $15

eBay repair & return service (postage included)
approx. $50...

Terrible price... (example only):
Amazon com 60pn6500 power

>> ESD (anti-static protection)
Amazon com Rosewill ESD Anti Static Wrist Strap Components RTK 002 Black...

Carnac the Magnificent

Jun 07, 2017 | LG Televison & Video

1 Answer

Looking for electrical testing meters

"METER" Question
leaves a WHOLE lot open to interpretation...

If you are looking to see battery at the BATTERY itself ...
or even a TAIL LIGHT...

Garden variety METERS might be a SAFE way to go...
slightest mistake = air bag DEPLOYMENT (explosion)).

but... (and this is a BIG but)

You CANNOT use ordinary "METERS" on
>> sophisticated electronic / semiconductor equipment...!!

(LOGICALLY imperceptible) can be safely
( perhaps even effectively )).

OBD (on board diagnostics) have been STANDARIZED
over the past couple of decades to report in INDUSTRY
acceptable DTC (diagnostic trouble codes)...

Behind that... there are the COMPLETELY PROPIETARY
(property)... firmware/software EXPRESSLY owned
(for example VW) with only USER privileges extended...
(right to use) to any/all of their customers.

In the fine print of EVERY RTU I have read in my
extensive careers in STORED PROGRAM CONTROL..

(consistently & completely) been FORBIDDEN...

(with Brigades of ATTORNIES to ENFORCE
(or defend... depending on what/who gets damaged)).

So... as to your question about "METERS"... (et al)
Typically those cheap/FREE/promotional digital
meters given away to attract customers to
HARBORFREIGHT (for example)... can be used
to check SUPPLY volts, amperes & ohms...
are completely acceptable...

YOU ARE "METERING"... (in my humble opinion).

And as ALWAYS... Wear your anti-static wrist strap
every-time you handle ANY semiconductors you
care about (ESD - protection: see below).

Expect to be purchasing ($$$$$) expensive
electronics... and AIR-BAGS.. Savvy?


6 Function Mini Digital Multimeter
Search results for volt meter

ESD ($6 Static Wrist-band)
Amazon com Rosewill ESD Anti Static Wrist Strap Components RTK 002 Black...

Carnac the Magnificent

Jun 07, 2017 | Cars & Trucks

2 Answers

Repair Sony nsx-40gt1 tv, no picture, 2 red blinking lights where normally green. Is the power supply board bad, t-con bad or main board bad. Who sells repair manual?

Hello Eric,

shopjimmy has the circuit boards and gives live support..

Check out the URL below.

Also consider getting an anti-static wrist band... so you don't destroy good semi-conductors with tiny static sparks.

Further information on that is under "ESD"
(Electro-static Discharge)

TV Parts Universal TV Stands DLP Chips ShopJimmy

Sep 14, 2016 | Sony NSX40GT1 40 Inch Internet TV powered...

1 Answer

Major Static when first turn on

You could try wearing a static arm band. Something like this might help - Belkin Anti-Static Wrist Band with Adjustable Groundingir?t=dc0c7-20&l=as2&o=1&a=b00004z5d1

Nov 26, 2014 | Samsung LN46A530 46 in. LCD HDTV

1 Answer

How to remove exterior card cover so i can install a new card

Dear William,
Best practise: wear an anti-staic wrist-band! Leave machine plugged in to power but make sure that power is switched OFF at wall - (this will ensure that the machine is safely 'earthed'. . Open box cover - there are usually release button(s) to do this. Once computer box is open, connect anti-static wrist-band alligator clip to bare frame. The PCI-card covers are usually attached by one screw/nut: UNDO. Remove slot-cover. Insert new card into PCI-slot. Make sure it is home & replace locking screw. Remove anti-static clip. Close box. Power-up & let Windows find/install new device. I hope that this helps - 'b'ye - Bruce.

Jan 02, 2014 | Gateway DX Computers & Internet

1 Answer

Ok tried password jump on motherboard but if i put the back on the place where they were by the cmos battery the power light quits flickering like a strobe light but it has to be on the password jumper to...

Dear Jeremy,
The human body can store up to 50,000 volts static electricity which is more than enough to fry components. MAKE SURE YOU ARE EARTHED! (1.): Switch power off at wall. Leave plugs in - (this will ensure that the computer is 'earthed'. (2.):Open box. (3.):Connect anti-static wrist-band alligator clip to bare metal frame of box - a bare screw head will do if you can not see any uncoated metal in the box). The password jumper has 3x sockets in a row. (4.):Move jumper plug to other 2x sockets to reset - (blank) - password. (5.): Remove anti-static clip. (6.): Close box cover. (7.): Power-on at wall. (8.): Reboot. If you want to reset a new Password, repeat above steps & move jumper-plug to other 2 sockets...when you reboot, you will be asked to enter new password. I hope that this helps - 'b'ye - Bruce.

Dec 27, 2013 | Computers & Internet

2 Answers

I tried to upgrade my acer aspire one A150 to a 2 GB stick of ram - didn't work so reinstalled the 512 stick I had (SHOULD be a total of 1 mb counting the 512 onboard.) It is NOW only recognizing 512. ...

Try swapping the ram sticks with each other and see if it still reports 512. If it does...then it sounds like you damaged one of the seats for the RAM somehow. Did you have any static shocks occur?

Mar 02, 2011 | Acer Computers & Internet

1 Answer

Unit will not power on

Howdy howdy...MeisterApple,

Took me a while to find your ENTRY again
(sorry... My fault: a mere few minutes after you asked)...

I had constructed an answer for you... replete with
SPARE parts... and anti-static (ESD) protective cautions.
(ALSO Strong caution against using CHEESY volt meters on
sophisticated integrated semiconductor technology).

My first suggestion was about those
CRACKED batteries...

Get those New/Good batteries away from your
UPS before it ruins another set (of batteries).

I have been UNABLE to find any decent

Try to contact them in ... Research Triangle Park (RTP)
LENOVO (for pats & repair suggestions)
write to:
Warranty Information,
500 Park Offices Drive,
RTP, NC, 27709

(I found NC - RTP folks to be charming & friendly
(but as yet... never helpful or cooperative (I think they
caused the NORTHERN TELCOM Collapse)).

(((Do not expect much help... just delightful banter))).

The actual circuitry of a voltage monitor, alarm
and battery operated inverter is (in principle) fairly

The NEW prices ARE pretty impressive... but
good UNITS are available.. and you can repair or
STORE your old one for PARTS... As you see fit.

Just ONE major caution... As you handle these
NEAR INDUSTRIAL grade pieces of equipment...

You should seriously consider begging, borrowing or
buying YOUR OWN anti-static WRIST Bands.

Electro Static Discharge (ESD): a small spark
(you might not even feel)
can utterly destroy
any nearby semiconductor it touches...

Careful (professional) handling is critical to the success

See below (from Amazon)

Donor UNIT:
Tripp Lite UPS SMART2200RMXL2U 2200VA 1600W 120V 15A Battery Backup used...

Similar APC parts
APC SUA3000RMXL3U MODEL 2200 Smart Uninterrupted Power Supply parts...

Uninterruptible Power Supply Service And Maintenance

ESD protection
(used by real pros (w/Boss watching: big savings)
Anti Static ESD Adjustable Wrist Strap Band Ground Bracelet with Alligator...

May 09, 2017 | Tripp Lite Battery Finder: SMART2200RMXL2U...

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