Tag - Sony TV repair

16 Jun

CE Tech Tips — June 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, L32A403
Reason for Service: Set comes on, works okay for an hour then panel shuts
off; sound and other functions work. Turning the TV off, then back on,
set works again for an hour then repeats.
Solution: Replacing inverter board assembly fixed the set. 

Hitachi TV, 57F59A
Reason for Service: No video or weak video. No voltage on the
ABL pin of the fly.
Solution: Replaced open RH28. 

Hitachi TV, 57F59A
Reason for Service: HDMI issues, changes colors, snowy picture,
loss of one or more colors, all white, shuts down.
Solution: Replace Signal Board and make sure software
Hitversion is V201 or higher. 

LG TV, 60LS5750
Reason for Service: After set is on for a few minutes, screen has
many red vertical lines, then picture turns off, but audio remains.
Fix: Replacing T-Con fixed the set.

 

Panasonic TV, TC-32LX85
Reason for Service: No power.
Solution: Found bad photo opto in power supply. PC7000.

Samsung TV, UN40F5500
Reason for Service: Dead, 2 blink error code.
Solution: Found SM RS802 that feeds the opto was open. Replacing fixed the set. 10 ohm. 

Sony TV, KDL-40V4100
Reason for Service: No video.
Solution: No 12V to T-Con. Replaced U21, (AS15F) on T-Con and replaced F1422/1421 on BU Board.

Sony TV, KV40XBR800
Reason for Service: Dead set.
Solution: Replacing relay RY6502 fixed the set.

 

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18 May

CE Tech Tips — May 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.

Dynex TV, DX40L150A11
Reason for Service: Backlights come on briefly, then screen goes black.
Solution: Replacing inverter module restored normal operation. 

Emerson TV, LC-320EM2A
Reason for Service: When pushing power button, there is a high pitch
squeal and blinking blue power light.
Solution: Replaced shorted D633 in power supply. 27V/1W. 

LG TV, 47LH40UA AUSVVLHR
Reason for Service: Dead set.
Solution: Found bad Opto in power supply, PC502; replacing it fixed the set. 

LG TV, 50PA4500
Reason for Service: Power button or remote will not turn set on.
Solution: Found bad cap in power supply, C802. Replacing it fixed the set. 0.022mF/1600V

 

Samsung TV, LN32B360C5d
Reason for Service: Set turns on one time at plug in, then won’t turn on again unless it is unplugged first.
Solution: Repairing bad tab on power supply board used for CCFL tubes fixed set. 

Sony TV, KDL40Z4100
Reason for Service: Dead, no standby.
Solution: On power supply board found shorted IC6101 and an open R6127, 10 ohm/Fusible.

Sony TV, KDL40V4100
Reason for Service: Dead set, no standby.
Solution: Replacing Fusible resistor R6200, (10 ohm/half W) and IC6200 restored normal operation.

Vizio TV, M420NV
Reason for Service: Set had no video, but sound was okay.
Solution: Installing eeprom kit fixed the set.

 

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27 Apr

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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29 Mar

CE Tech Tips — March 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, 60V500A
Reason for Service: Lamp LED blinking.
Solution: Check door lamp switch – boss on door or lamp assembly may not close switch. Apply tape to boss.

LG TV, 60PV250UB
Reason for Service: Set had no video, but audio okay.
Solution: Replaced Z-Sus and resoldered coils on Y-Sus.

Philips TV, 47PFL7403D/F7
Reason for Service: Dead set, no LED.
Solution: Found fuse open, U101 was shorted with black pin hole on top.  Also check for bad 120W resistor that feeds U101.

Samsung TV, PN51F8500AF
Reason for Service: Dead set, main fuse blown.
Solution: Found shorted transistor, QP804C on power board.  Replacing it and fuse fixed set.

Sanyo TV, DP42841
Reason for Service: Dead set, no standby.
Solution: Replaced R606 and IC601. STR-A6051M.

Sony TV, KDL40EX400
Reason for Service: Dead set with no standby.
Solution: Replaced following: IC6101, D6302, D6304 and R6107, 10ohm/1W.

Sony TV, KDL40SL140
Reason for Service: Dead set.
Solution: Set had no standby, fusible resistor R6200 open. 10ohm/half watt.

 

 

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19 Feb

CE Tech Tips — February 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, 53SDX01B
Reason for Service: When set turns on, screen is black except for OSD.  Channels changing constantly if you can see them.
Solution: Replaced defective DM04 on control board.

LG TV, 47LE5400
Reason for Service: Set won’t start past LG Splash logo. No buttons work.
Solution: Removed large plastic heatsink and then reflowed large IC on main board.

RCA TV, HD50LPW175
Reason for Service: FPD lights up, then blinks five times, and nothing further happens.
Solution: Check all following caps in power supply: C624, C639, C641, C647 and C640.

Samsung TV, LNT3242HX/XAA
Reason for Service: Dead set, has 5V standby.
Solution: Replaced RM801 in power supply.  0.22W/1W

Samsung TV, LN46A550P3F
Reason for Service: Set makes screeching noise then shuts off.
Solution: Replaced C102, SM 47uF/6.3V Blue box cap.

Sony TV, KDL32L504
Reason for Service: Dead set.
Solution: Found bad IC6102 bad; replaced with Sony 670880101.

Viore TV, LC37VF55
Reason for Service: Set had bad picture, almost like solarized.
Solution: Replacing AS15-F on T-Con 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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