Tag - Sharp TV repair

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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