Tag - insignia tv repair

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 — April 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.

Hitachi TV, 60SDX88B
Reason for Service: Picture displays a pin problem.
Solution: Replacing Q657 fixed this set.

Hitachi TV, 42HDS69
Reason for Service: Set just clicks when powered on.
Solution: Replaced two 3300uF/100V caps in power supply.

Insignia TV, NS42L780A12
Reason for Service: Set had good audio, but no picture because no backlight.
Solution: In the power supply, Q801 and Q802 were shorted, (had bad solder) and R801 was burned.  0.1ohm/2W.

Panasonic TV, TCP50X5
Reason for Service: Dead, may be intermittent.
Solution: Replaced U203 on back side of power supply.

 

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

Sony TV, KDL40V2500
Reason for Service: Right side of screen had video strobing; left side no video at all.  Audio okay.
Solution: Found 3 bad caps in power supply, C6204, C6205 and C6207.
Replacing these fixed the set.

Sylvania TV, LC190SL1
Reason for Service: Dead, fuse blown.
Solution: Replaced Q601, Q602, R610, 0.39Ω/2W and D607 zener. Also check D605, D606.

 

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