Tag - rca tv repair

06 Oct

CE Tech Tips — October 2022

**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.

Hisense TV, LTDN46V86US
Reason for Service: Set won’t start, intermittently.
Solution: Found 3 bad caps on the power board, C811, C812 and C814.

LG TV, 42LG50
Reason for Service: Picture was solarized.
Solution: Found and replaced bad U21 on the T-Con Bd. AS15F.

LG TV, 60PV400UB
Reason for Service: Power comes on, but set doesn’t prime.
Solution: Repaired Z-Sus module by replacing a leaky C418 chip cap and three 10ohm resistors R430, R439 and R517.

LG TV, 60PV400
Reason for Service: Set powers on, but no prime.
Solution: Replaced following on Z-Sus module: R439, R517 R430, all 10ohm chip and C418.

RCA LED52B45RQ
Reason for Service: Dead, but red LED blinks once when power button pressed.
Solution: Found bad cap on power supply board, C14, 47uF.

Samsung TV, PN60E530A3FXZA
Reason for Service: Doesn’t prime, no video or picture.
Solution: Replaced ceramic caps with 10uF/63V electrolytics. C5160, C5162 and C5046. 

Sanyo TV, FW65D25T
Reason for Service: No video, audio is okay.
Solution: Replacing FRC board fixed set. 

Vizio TV, XVT3D474SV
Reason for Service: Set will not start. Amber logo, but doesn’t change to white.
Solution: Reflowing the BGA on main board fixed the set. U9

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13 Sep

CE Tech Tips — September 2022

**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.

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

LG TV, 42LG50
Reason for Service: Picture solarized.
Solution: Found and replaced bad U21 on T-Con Bd. AS15F.

LG TV, 50PJ350-UB
Reason for Service: Set starts for a second then shuts off.
Solution: Check/replace R927 & R929, both 22Ω/5W.

Protron TV, PLTV-32CM
Reason for Service: Audio volume low and distorted.
Solution: Replacing two bad caps on main fixed set. CE6 and CE7, 100uF/16V.

RCA TV, RLDED5078A-D
Reason for Service: No video or OSD.
Solution: Replaced open fuse on T-Con, 3A.

Samsung LN-T2342H
Reason for Service: Dead set.
Solution: Found bad zener in power supply, DZB803.

Sylvania TV, 6432TFY
Reason for Service: Dead set, may chirp.
Solution: Found bad D653; replaced, 18V zener.

Vizio TV, E420VA
Reason for Service: Dead set.
Solution: Replaced small blue cap in power supply, C911, .01uF/1KV and F901, 5A fuse.

Vizio, VW42L
Reason for Service: Backlights strobing and making buzzing noise.
Solution: Replaced C421 in power supply and two 470mF/35V on master and slave inverter boards.

 

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15 Feb

CE Tech Tips — February 2022

**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, 60PK200
Reason for Service: Set powers up then shuts down in a couple of seconds.
Solution: Check R927, R928 & R929 in power supply. All are 10 ohm/5W.

Panasonic TV, TH42PX80U
Reason for Service: 10 blink error as soon as set plugged in. Won’t start.
Solution: Replaced power supply, P Board.

 RCA TV, G36710, (ATC113CB1)
Reason for Service: Top 2/3 of screen was black; bottom 1/3 was okay.
Solution: Replaced the following: Vert IC, DF01 and CF05.

Samsung TV, LN55B650T1F
Reason for Service: No backlight.
Solution: Found C1804 in PS bad, replacing it fixed set.

Samsung TV, LN26B460B2D
Reason for Service: Dead set, but red LED is on.
Solution: Found bad filter cap, C849; replacing it fixed set. 2200uF/16V.

Samsung TV, UN60EH6003
Reason for Service: Video goes to black after set on for few minutes. Audio and BLs okay.
Solution: Found two bad caps on TCon board. C7114 and C7122.

Sony TV, KP53HS30
Reason for Service: Set had no video or OSD, audio okay.
Solution: Replaced B module.

Westinghouse TV, VR5585DFZ
Reason for Service: Dead set.
Solution: Replaced bad U6 regulator on main board.

Zenith TV, P42W46X
Reason for Service: Weak video and grainy picture. Can be intermittent.
Solution: Replaced 33uF caps near transformer left scan module.

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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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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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