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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..............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 !

Saturday, 9 February 2019

APEX GB43HD09_GB51HD09_GB55HD09W_GB65HD09W_ RPTV _ SERIVCE MODE AND ADJUSTMENT & SELF CHECK

APEX GB43HD09_GB51HD09_GB55HD09W_GB65HD09W_ RPTV _ SERIVCE MODE AND ADJUSTMENT & SELF CHECK



TO ENTER SERVICE MODE

  • Decrease the Volume to [0] by pressing Volume (-) button on the remote control.
  • Press ‘MENU’ on the front panel of the TV while pressing and holding the ‘MUTE’ on the remote control to display “S” on the upper left corner of the screen.
FUNCTION OF SERVICE MODE

MCU controls the operation of ICs via IIC bus.  In service mode, the items are adjusted by the remote control.
In the Service Mode:
Press "PIP CH+" repeatedly to scan through the following menus.
Press "CH +/-" to select an item, and press "VOLUME +/-" to adjust the data value to selected item.

MENU-1

MENU-2 & 3



MENU-4


MENU-5


The values in Menu-2 and Menu-5 are averages or definite values at the factory. Only adjust the values allowed to adjust and do not change those are not allowed to do so.  Otherwise it will cause the TV to run improperly.  

SELF CHECK
Self check is used to check the ICs and function modules of the TV.  Press "PIP CH+" to display the following menu when in the service mode.


"ERROR" instead of "OK" displays when something wrong with ICs

Displays
Position number
IC functions
Circuit boards
TDA9332
N005
RGB PROCESSING, H/V ACTIVATING
MAIN CHASSIS
TEA6425
NV04
VIDEO SWITCHING
AV BOARD
TEA6420
NV02
AUDIO SWITCHING
AV BOARD
TUNERM
N002
MAIN TUNER
MAIN CHASSIS
MSP3440
NV01
BTSC SOUND PROCESSING
AV BOARD
TUNERP
N001
SUB-TUNER
MAIN CHASSIS
VPX3226
U14
PIP DECODING
FB BOARD
EEPROM
U3
MAIN MEMORY
MCU BOARD
EXTRAM
U7
EXTERNAL RAM FOR MCU
MCU BOARD
SPI
     --------
CONVERGENCE MODULE
CONVERGENCE BOARD.
Posted By: FRANK at 01:13
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