Tag - Sharp TV repair

CE Tech Tips — October 2021

**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.

 

Coby TV, TFTV3227

Reason for Service: Loses video intermittently
Solution: We found a ground wire that was supposed to be screwed to the metal frame, had no screw.
Replacing the screw fixed the set.

LG TV, 50PC5D
Reason for Service: The screen had many red horizontal lines across the top part of it.
Solution: Replacing the upper buffer restored a good picture.

LG TV, 32LC7D
Reason for Service: Left side of the screen it too dark.
Solution: Found two bad caps on the inverter board, C215 and C218, 270uF/10V.

Samsung TV, LN-S2641
Reason for Service: Set won’t start.
Solution: Replacing the main board fixed this set.

Samsung TV, LN26A450C1DXZA

Reason for Service: Dead set.
Solution: Found and replaced bad regulator on main Board, IC1001. Check power supply for domed caps also.

Sharp TV, LC-52E77EU
Reason for Service: Set won’t start, power light blinking.
Solution: Replacing main board fixed the set.

Sony TV, KDL55W802A
Reason for Service: Set won’t start, 2 blink error.
Solution: Found and replaced 2 bad transistors in the power supply, Q6502 and Q6503. In addition, R6547 was bad, 0.1ohm/5W.

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CE Tech Tips — September 2021

**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, LC320EM2A
Reason for Service
: Powers on with high pitched squeal
and blinking power light.
Solution: Found shorted diode in power supply. D633, 27V/1W. 

Insignia TV, NS-LCD47HD-09
Reason for Service
: No video, backlights okay.
Solution: Replacing U507 on main board fixed set.
(was running very hot)

Panasonic TV, TH42PZ700U
Reason for Service: Dead, seven blink error.
Solution: On SC module look for row of SM FETs.
Check for shorts by lifting on leg of each. Q641-Q654

Samsung TV, UN55ES6100
Reason for Service: Set won’t connect to Internet.
Solution: Replacing the Wi-Fi module fixed set.

Samsung TV, LN55C750R2F
Reason for Service: Set intermittently had video, then went out all together.
Solution: Before replacing T-Con or main, sub crystal X11 from scrap set.  If no good, replace T-Con.

Samsung TV, PCL542R
Reason for Service: Dead set.
Solution: Replaced IC801, IC802 and IC806.

 Sharp TV, LC52D64U
Reason for Service: Dead set. F7000 blown.
Solution: Replaced Q7805, Q7808 and fuse to fix set.

 Sony TV, KV40XBR800
Reason for Service: Shuts down with 6 blink error.
Solution: Found and replaced bad cap C6556, 33uF/160V.

 

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CE Tech Tips — August 2021

**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, 50PJ350-UB
Reason for Service
: Set starts for a second then shuts off.
Solution: Check/Replace R927 & R929, both 22 ohm/5W.

LG TV, 50PC1DR
Reason for Service: Dead set, 2 blink error.
Solution: Found Q855 in power supply shorted. SD20N60.

Panasonic TV, TH58PX600U
Reason for Service: Dead set,10 blink error.
Solution: Replacing PA board fixed set. 

Samsung TV, PN51D550C1
Reason for Service: Six blink code when set plugged in,
but will not turn on.
Solution: Found bad Y main, then found shorted C5020
on Y main.  Replaced C5020.

 

 

Samsung TV, UN55FH6030FXZA
Reason for Service: Backlight flickers. Cleaned cable ends, no improvement.
Solution: Replacing power supply fixed set.

Sharp TV, LC-60LE600U
Reason for Service: Set will turn on with no picture, sound or backlights.
Solution: First check for bad solder to LED strips.

Vizio TV, VO47L FHDTV10A
Reason for Service: No backlights, audio okay.
Solution: Replaced following: C241, 470uF/35V in power supply, C2 & C3 both 680uF/35V on master inverter board plus 10A fuse F1, and C102 & C103, both 680uF/35V on slave inverter board.

Vizio TV, E401i-A2
Reason for Service
: No backlights.
Solution: Replacing LED driver board fixed set.

 

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CE Tech Tips — December 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, 57S710S
Reason for Service: Using HDMI connection,
black picture with no Sync on OCD.
Solution: Clean HDMI jack with 99.8% isopropyl alcohol.

JVC TV, JLC32BC3002
Reason for Service: When set turned on, JVC logo appears,
then sound but no backlights.
Solution: Found shorted D602 on power supply board. MUR460

LG TV, 32LP1DC
Reason for Service: No audio
Solution: Replaced main board.

Samsung TV, PN64D80000FF
Reason for Service: Relay clicks on and off.
Solution: Resoldered TS801s and TC802s on power board.

Samsung TV, LN46C550JIFXZA
Reason for Service:  Set won’t come on, red LED blinks continuously.
Solution: Disconnect LVDS cable; if set comes on with melody, it’s either bad T-con or panel. Reconnect LVDS and unplug cables from T-Con to panel. If set comes on, panel is bad.

Sanyo TV, DP50749
Reason for Service: Power cycles on and off.
Solution: Replaced IC5750 on main board.

Sony TV, KDL46V2500
Reason for Service: Dead set, four red blink error.
Solution: Check all inverter transformers and their associated sm resistors.


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CE Tech Tips — November 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, 47LS4500-UD
Reason for Service: No picture and no backlight.
Solution: Found D607 shorted in the power supply.  MUR460AX

Samsung TV, PN51D6500D
Reason for Service: Set shuts down, or clicks on and off, has picture and splash screen every 5 or 6 seconds.
Solution: Replacing main board fixed this set. BN94-04728A

Samsung TV, LN40A500T1FXZA
Reason for Service: Set comes on, then as it warms up, picture problems, then shuts down.
Solution: Check for bad caps, C102 and C131 on main. 

Sharp TV, LC60LE650U
Reason for Service: Dead set, no standby.
Solution: Replaced shorted IC7903, (A6069H), and opened R7900, 0.22 ohm fusible.

Sony TV, KDL46W4100
Reason for Service: Backlights come on, then turn off within few seconds with 14 blink error.
Solution: Found and replaced 7A open fuse on LCD controller module.

Toshiba TV, 32HL67U
Reason for Service: At turn on, screen lights up for second, then dims way down; sound okay.
Solution: Replacing T-Con fixed set.

Vizio TV, VP422HDTV10A
Reason for Service: Dead, no standby 5V or amber logo.
Solution: Found open cap in power supply, C8006.  22uF/450V.  Replacing fixed set.

 


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