REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Wednesday, 27 March 2019

HITACHI L32S02A, L32A02A, L32E200, L32R200,L32E100S,L32E101B, L32R100 _ TROUBLESHOOTING _ PWB's PART NUMBERS - LOCATION

HITACHI L32S02A, L32A02A, L32E200, L32R200,L32E100S,L32E101B, L32R100 _ TROUBLESHOOTING _ PWB's PART NUMBERS - LOCATION




TROUBLESHOOTING

  • The flow chart shown below will help you to troubleshoot your Television set with it doesn't display normally. Each procedure offers a simple way to check for system errors. Before starting, ensure that there is a signal in and that the television is turned on.




Power LED indictor has no light.





Check CN14 PIN2 and CN15 Pin7=5V
Not good
Change Power board assembly
Ok


Change IR board assembly





Power LED only indictor red light


Check CN15 Pin9=5V
Ok
Change Q3 or change IR board assembly
Not good


Check U4 Pin54=3.3V
Ok
Change Q1 or Q6
Not good

Change main board assembly



TV has picture but no sound


Press “Mute”function or adjust volume up to check the sound be mute or not


Ok


Check speaker
unit 7~9 OHms
Not good
Change speaker unit
Ok


Check CN8-Pin1 &Pin2=22~24V
Not good
Change power board assembly
Ok


Check U33-Pin13 &Pin18=22~24V
Not good
Change main board assembly
Ok


Check U31-Pin2=3.3V
Not good
Change main board assembly
Ok


Check U32-Pin2=1.8V
Not good
Change main board assembly
Not good


Check U25-Pin1=8V
Not good
Change main board assembly



TV has sound, but no picture





Check CON16 Pin15 & Pin16&Pin17&Pin18=12V
Not good
Change power board assembly
Ok


Check CON3 Pin7& Pin8 &Pin11&Pin12=24V
Not good
Change power board assembly
Ok


Check U23 Pin2 3.3V
Not good
Change main board assembly
Ok


Check U1,U2,U10,U29 voltage stable or not
Not good
Change main board assembly

PART NUMBER & DESCRIPTION


YZ2100020492
YZ2100020495
YZ2100020496
YZ2100020497
YZ2100020498
YZ2100020500
YZ531Z09416300
YZ560010812402
YZ7607T320030000
MAIN BOARD ASSEMBLE
YPBPR AND R232 BOARD ASSEMBLE
SIDE AV AND EARPHONE BOARD ASSEMBLE MAIN POWER SWITCH CONTROL
KEY CONTROL BOARD ASSEMBLE
REMOTE CONTROL HANDSET CLE-996
32" LCD POWER SUPPLY JSK4163-022
SPEAKER 8 OHM 10W
32" LG.PHILIPS LCD LC32WXN-SAC1 1366X7

PWB LOCATION


Posted By: FRANK at 03:40
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