Question about Hitachi 50SBX70B 50" Rear Projection Television

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50 inch projection tv model number 50sbx70b

The problem is I pulled the tv's power supply out of the tv and I need a repair manual or a repair schematic of this model so that I may resolve this problem.

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  • Anonymous Nov 26, 2007

    Power supply has pulled out and I need a repair manaul or schematics to resolve the issue.

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Posted on Dec 05, 2007

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1 Answer

TV powered off and will not power back up


I will need the model number of your Sony in order to help. Also does the led blink when you press power? If so let me know the number of blinks. Please respond to this same post

Jun 19, 2009 | Sony Grand WEGA KDF-50WE655 50" Rear...

1 Answer

Unit cuts out after short period.


Yes it could cost as much as $450.00.Your set Needs Both of the STKs replaced. Hope you can solder or get someone who can, STKs are convergence ics they also control power too! If you have in your set STK392-110s use the 180s 110s do not hold up They will be big black ICs

Dec 24, 2008 | Hitachi 50SBX70B 50" Rear Projection...

1 Answer

Please help need to watch tv


Well this gives you someplace to start!
Symptom: NO POWER
Cause: DEFECTIVE I912
Symptom: SHUTDOWN
Cause: Q777,I901
Symptom: SHUTDOWN
Cause: E994,D724
Symptom: SHUTDOWN
Cause: DEFECTIVE I401
Symptom: SHUTDOWN
Cause: DEFECTIVE I601
Symptom: SHUTDOWN
Cause: DEFECTIVE C715
Symptom: SHUTDOWN/OPEN E995,E996
Cause: DEFECTIVE T702

Jan 29, 2008 | Hitachi 50SBX70B 50" Rear Projection...

1 Answer

My 50SBX70B flicks than lost the power


Symptom: NO HOR SYNC
Cause: DEFECTIVE I008
Symptom: No Horizontal Sync. When PinP is called up, main picture may lock up for a 8 moment, then it goes back out of sync.
Cause: I008 defective (Sync Switch)

Jan 15, 2008 | Hitachi 50SBX70B 50" Rear Projection...

1 Answer

Tv help


Symptom: PICTURE PULLS
Cause: DEFECTIVE D702,D703,D704
Symptom: DIGITAL CONVERGENCE WON'T ADJUST
Cause: DEFECTIVE DCU

Jan 14, 2008 | Hitachi 50SBX70B 50" Rear Projection...

3 Answers

My 50SBX70B doesn't start


There are many reasons for a no start on your 50SBX70. I will give you the most common problem I have found. Check E994( 4a pico fuse on the 120v line in pwr supply) If it is bad, remove C701(.001/2kv) from the circuit located near Q777. Inspect the capacitor for any burn marks, if so put in a new fuse and leave the cap out and fire up the set.

Nov 07, 2007 | Hitachi 50SBX70B 50" Rear Projection...

1 Answer

Tv shuts off


You could have a problem in the sweep or main power supply, Bad capacitors on the DM module, they will be all grouped together and have swollen tops, Coolent fluid leaking out of one of the CRT's. If you have no electronic or solid state repair experience, please get a pro to assist you in this repair. Good Luck

Apr 03, 2007 | Mitsubishi VS-50607 50" Rear Projection...

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