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What is a ''DZ board'' in a Sony Wega HDTV

Has to do with the power supply and OVP

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Basically the main motherboard of the TV.
It is the large board on the left when viewed from the back.

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Posted on May 13, 2009

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Stand by light flashes 7 times and tv will not turn on


Sony Trinitron Wega KV-34HS420 blinks 7 times it means the the Horizontal Deflection stopped.
There are two cause for this: B overcurrent is detected (IC5007 is defective) or there is a over heating is detected by the Thermistor (TH5002). Both of these parts are on the DZ Board. If you order the DZ Board from the "Partstore.com" it will cost you $395.95 minimum. The Thermistor TH5002 (part # 1-807-796-11) cost $4.95.
This IC chip IC5007 is no longer available at Partstore.com. You could purchase it from other stores. Not sure of price.
Replacing the whole DZ board would for sure fix this problem but at close to $400.00. Then what if another board or your picture tube goes out soon.
Better to go buy a new flat panel LCD from Costco for around the same price.
Hope this helps
Bobby Guel "aka poolmvp1"

May 31, 2010 | Sony FD Trinitron WEGA KV-34HS420 34" TV

Tip

SONY GRAND WEGA ERROR CODES AND WHAT THAY ARE


Lamp cover error 3 times - Lamp cover is not fastened securely - No picture/No sound

Fan error 4 times
- Fan1-4 Power is not supplied.(G2 board)
- Fan connector is not seated securely
- Fan caught wires or harnesses
- No picture/No sound

Temp error 4 times
- Internal temperature is too high
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- No picture/No sound

Lamp driver error 5 times - Lamp driver defect - No picture/No sound

Low B error 6 times -No "DD 6V " output (G1 board) - No picture/No sound

Audio error 7 times
- Short-circuit of Audio power supply line
(KD board, G1 board)
- Blowout of a fuse
(F4702,F4703,F4704 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
- No picture/No sound

D-OVP error 8 times
- Overvoltage of +3.3V or +2.5V
(A board, B board)
- No picture/No sound

ATSC-OVP error 10 times
-No "DTL MODULE 5V " output
(G1 board, G2 board)
- No picture/No sound

Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound

on Apr 13, 2009 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

My sony grand wega kdf-60XS955 dont turn on


Power suppply board is dead.Replaced the power supply board will solved this problems.Tries Shopjimmy.com,Ebay.com to buy a refurbish power supply board for the replacement.

Mar 08, 2010 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Sony wega 70 in new bulb lasted 8 hours now


hello.+ over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

Oct 21, 2009 | Sony Grand WEGA KDF-60XS955 60" Rear...

1 Answer

Is the t603 and r672 part of the tv or the actual circuit breaker


Three blinks - B over voltage protection (OVP), unit goes to the standby mode then displays the 3 blink fault. This is also a problem in the power supply circuit, check T603 and R672.

DOES THIS ABOVE issue have anything to do with Cooling FAN?
I cannot hear the cooling fan come on when first turned on like
before THANKS

May 05, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

SONY KDP-65WS550 projection or power problems NEED HELP


3 times, Diagnosis: +B overvoltage (OVP). Possible causes: IC501 is faulty (G board), IC5002 is faulty (G board). Symptoms of the problem: TV has entered standby mode. got this off a website that had Sony codes listed.
Rusty
http://www.the-tv-dude.typepad.com

Apr 26, 2009 | Sony Grand WEGA KDP-65WS550 65" Rear...

1 Answer

Hi again


yes 3x its lamp cover no doubt. ballast supply will give different error on this unit. this should help hdtv man

Diagnostic Item
Description
Number of times
STANDBY or LAMP LED
lamp flashes
Probable Cause Detected Symptoms
Lamp cover error 3 times - Lamp cover is not fastened securely - No picture/No sound
Fan error 4 times
- Fan1-4 Power is not supplied.(G2 board)
- Fan connector is not seated securely
- Fan caught wires or harnesses
- No picture/No sound
Temp error 4 times
- Internal temperature is too high
- IIC-E line connector is not seated properly
(WE:H3 board, WF/XS:H4 board)
- No picture/No sound
Lamp driver error 5 times - Lamp driver defect - No picture/No sound
Low B error 6 times -No "DD 6V " output (G1 board) - No picture/No sound
Audio error 7 times
- Short-circuit of Audio power supply line
(KD board, G1 board)
- Blowout of a fuse
(F4702,F4703,F4704 on KD board)
- IC failure
(IC4703,IC4708,IC4710 on KD board)
- No picture/No sound
D-OVP error 8 times
- Overvoltage of +3.3V or +2.5V
(A board, B board)
- No picture/No sound
ATSC-OVP error 10 times
-No "DTL MODULE 5V " output
(G1 board, G2 board)
- No picture/No sound
Lamp error LAMP-LED is ON. - Lamp is dead - No picture/No sound

Jul 01, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

1 Answer

Kdf-55wf655 power led light blinking six times


Most Sony 6-blink codes for projection TVs follow this pattern:
6 times, Diagnosis: LOW B OCP/OVP (Overcurrent/over voltage). Possible causes: +5 line is overloaded. (A, B boards), +5 line is shorted. (A, B boards). Symptoms of the problem: No picture.

Jun 13, 2008 | Sony Grand WEGA KDF-55WF655 36" Rear...

2 Answers

Tv just shut off and red light is flashing


Most Sony 6-blink codes for projection TVs follow this pattern:
6 times, Diagnosis: LOW B OCP/OVP (Overcurrent/over voltage). Possible causes: +5 line is overloaded. (A, B boards), +5 line is shorted. (A, B boards). Symptoms of the problem: No picture.

Mar 07, 2008 | Sony Grand WEGA KDF-55WF655 36" Rear...

2 Answers

6 flashes


6 times, Diagnosis: LOW B OCP/OVP (Overcurrent/over voltage). Possible causes: +5 line is overloaded. (A, B boards), +5 line is shorted. (A, B boards). Symptoms of the problem: No picture.

also check out this sony recall
http://www.hdtvoice.com/voice/showthread.php?t=31861

Jan 05, 2008 | Sony Grand WEGA KDF-42WE655 42" Rear...

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