Tag - zenith tv repair

CE Tech Tips — January 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.

Hitachi TV, 60V500A
Reason for Service: Sound distortion (rattling sound) on speaker with action movie and bass set to max.
Solution: Replace side protector between woofer and power supply with new part MN06392. 

Samsung TV, LN46A530P1F
Reason for Service: No backlight, power supply comes up with all voltages.
Solution: Replaced main board to fix.

Samsung TV, UN55C6900VFXZA
Reason for Service: Dead set.
Solution: Replaced 2 components in power supply. ICB801 and ZDB802.

Samsung TV, UN40F6300
Reason for Service: Dead set, power LED 2 blink error.
Solution: Found bad SM cap, RS802, replacing fixed set.

Sanyo TV, DP42841
Reason for Service: Audio cuts out at high volume and crackles sometimes.
Solution: Replaced Audio IC LV4906.  

Zenith TV, P42W46X
Reason for Service: Black screen, slowly gets better the longer set is on.
Solution: Found C61 in power supply bad. 47uF/50V.

Zenith TV, Z50PG10UA
Reason for Service: No video or OSD, screen lights up.
Solution: Replacing upper buffer fixed this set.

 

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CE Tech Tips — December 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: Sound distortion (rattling sound) on speaker with action movie and bass set to max.
Solution: Replace side protector between woofer and power supply with new part MN06392. 

Samsung TV, LN46A530P1F
Reason for Service: No backlight, power supply comes up with all voltages.
Solution: Replaced main board to fix.

Samsung TV, UN55C6900VFXZA
Reason for Service: Dead set.
Solution: Replaced 2 components in power supply. ICB801 and ZDB802.

Samsung TV, UN40F6300
Reason for Service: Dead set, power LED 2 blink error.
Solution: Found bad SM cap, RS802, replacing fixed set.

Sanyo TV, DP42841
Reason for Service: Audio cuts out at high volume and crackles sometimes.
Solution: Replaced Audio IC LV4906.  

Zenith TV, P42W46X
Reason for Service: Black screen, slowly gets better the longer set is on.
Solution: Found C61 in power supply bad. 47uF/50V.

Zenith TV, Z50PG10UA
Reason for Service: No video or OSD, screen lights up.
Solution: Replacing upper buffer fixed this set.

 

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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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