Tag - Vizio TV repair

05 Oct

CE Tech Tips — October 2020

**NOTICE**
Due to the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.

Emerson TV, LF501EM4
Reason for Service: Dead set, no standby power light.
Solution: Removed the I/R board and found SM C4056 shorted.  Removing bad cap restored normal operation to the set.

Hitachi TV, 57F59A
Reason for Service: Changes colors, snowy picture, loss of one or more colors, all white and shuts down.
Solution: Replace signal board and make sure the firmware is updated. 

LG TV, 47LM6700
Reason for Service: Dead, 3 blink error.
Solution: Replaced a shorted D607.  MUR460

Panasonic TV, TCP42X5
Reason for Service: Dead
Fix: Replaced U203 on backside of Power board.  FAN6755UWMY.

RCA TV, LED46C45RQ
Reason for Service: Set won’t power up.
Solution: Replacing the EEPROM fixed the set.  U16

Samsung TV, PN64E8000GFXZA
Reason for Service: Dead set, fuse blown.
Solution: Repaired power board by replacing QS802 & QS804.  Examine whole board for bad solder and resolder as necessary.

Vizio TV, E390-A1
Reason for Service: LED backlights will not come on.
Solution: Replacing IC U403 fixed the set.

Zenith, 9-1302 module
Reason for Service: Dead, nothing.
Solution: Resoldered jumper next to Elect Cap CX3452.  Fixed set.

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24 Jul

CE Tech Tips — July 2020

**NOTICE**
Due to the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.

Hitachi TV, 60SX2K
Reason for Service: No color
Solution: Replaced leaky 2D-7004.

LG TV, 37LG10-UM
Reason for Service: Picture was washed out.
Solution: Replaced U202 on the T-Con board.  AS15-U.

Onkyo Recriver, TXSV727
Reason for Service: Unit in protect mode
Solution: Replaced Q615, Q621, Q623 and R639, 2.2k ohm.

Panasonic TV, TC50PX24
Reason for Service: Shutdown,10 blink error
Solution: Replaced SS module.

Sanyo TV, DP47460
Reason for Service: Dead set
Solution: Found and replaced bad IC601 on power board. A6051M.

Samsung TV, PN58C6400TFXZA
Reason for Service: Set has audio but no video.
Solution: Replaced Q5006 and Q5008 on main board.

Sony TV, KDL46W4100
Reason for Service: Backlight comes on then shuts off in short time. Error 14 blinks.
Solution: Replaced LCD controller.

Vizio TV, E601i-A3E
Reason for Service: Remote and replacement not working, but front panel buttons work fine.
Solution: Found leaky SM cap off vcc leg of I.R. diode.

 



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01 Jun

CE Tech Tips — June 2020

**NOTICE**
Due to the danger and complexity of electronic equipment repair, the following technical tip is intended for professional reference only. Please refer to manufacturer’s recommendations as Encompass does not guarantee the accuracy, reliability or safety of this information.

LG TV, 47LE5500
Reason for Service: Set seems to start with white LCDs flashing, backlight comes on but no audio or video.
Solution: Replacing main board fixed set.

LG Plasma TV, 60PK750
Reason for Service: Set powers up normally with two clicks when you turn it on, but if you turn it off and back on again, set won’t come on. Red LED blinking.
Solution: Replace cable between main and power board.  EAD60958306

Polaroid TV, FLM323B
Reason for Service: Dead set.
Solution: Replace all caps in power supply and under heatsinks.

Samsung TV, LN32D430G3DXZA
Reason for Service:  Backlights not coming on, audio okay.
Solution: Power supply had some distressed areas from excessive heat; replaced entire module.  BN44-00438B

Samsung TV, HL67A750A1FXZA
Reason for Service: Set shuts down and 3 LEDs blink in the front.
Solution: Replacing LED driver board fixed set.

Sony TV, KDL55HX729
Reason for Service: Won’t power up, 2 blink error code.
Solution: Check and replace as necessary:  Q6602 & Q6603 on secondary power board and R6540 on main power board.  0.1 ohm/2W

Vizio TV, GV47LFHDTV10A
Reason for Service: At turn on, relay clicks and then clicks again in a few seconds. All yellow LEDs on set front are on, and you can only turn off by unplugging set.
Solution: Check for open 1.5A fuse on main board or check U5.  AMC1117

 

 

 

 


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