Tag - zenith tv repair

CE Tech Tips — January 2023

**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, 60PV25
Reason for Service: Solarized picture.
Solution: Found lots of bad solder on Y & Z sus boards and in power supply. Check and resolder as necessary.

Samsung, LN32C540F2DXZA
Reason for Service: Won’t turn, no functions.
Solution: Discovered bad CM808 in power supply. 018uF/1KV

Samsung PN64D7000
Reason for Service: Splash screen continually cycles.
Solution: Replaced flash chip on main, IC1302. Verify by freeze spraying.

Samsung, UN55D6000DF
Reason for Service
: Set won’t start, but has standby light.
Solution: Reflowing BGA on main fixed set. IC1001

Sony TV, RA6 chassis
Reason for Service: Relay clicks, 6 blink error.
Solution: Found shorted D5002 on G board. Replacing fixed set.

Toshiba, 40G300U1
Reason for Service: Power button turns logo on, but nothing else works.
Solution: Replaced 7A fuse on inverter board and Q303.

Toshiba TV, 55SV670U
Reason for Service: Dead set.
Solution: Replacing R850 on power board fixed set. 1.8ohm/5W

Zenith TV, Z50PV220
Reason for Service: Top half of picture missing.
Solution: Replacing lower Y-buffer fixed set.

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CE Tech Tips — December 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, 60PV25
Reason for Service: Solarized picture.
Solution: Found lots of bad solder on Y & Z sus boards and in power supply. Check and resolder as necessary.

Samsung, LN32C540F2DXZA
Reason for Service: Won’t turn, no functions.
Solution: Discovered bad CM808 in power supply. 018uF/1KV

Samsung PN64D7000
Reason for Service: Splash screen continually cycles.
Solution: Replaced flash chip on main, IC1302. Verify by freeze spraying.

Samsung, UN55D6000DF
Reason for Service
: Set won’t start, but has standby light.
Solution: Reflowing BGA on main fixed set. IC1001

Sony TV, RA6 chassis
Reason for Service: Relay clicks, 6 blink error.
Solution: Found shorted D5002 on G board. Replacing fixed set.

Toshiba, 40G300U1
Reason for Service: Power button turns logo on, but nothing else works.
Solution: Replaced 7A fuse on inverter board and Q303.

Toshiba TV, 55SV670U
Reason for Service: Dead set.
Solution: Replacing R850 on power board fixed set. 1.8ohm/5W

Zenith TV, Z50PV220
Reason for Service: Top half of picture missing.
Solution: Replacing lower Y-buffer fixed set.

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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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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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