CE Tech Tips – April 2015

CE Professional Tech Tip Sharing

April 2015

**NOTICE**

Due the danger and complexity of electronics repair, the following shared
technical tips are intended for professional reference only. Please refer to
manufacturer’s recommendations as Encompass does not guarantee the accuracy,
reliability or safety of this information.

Dell Plasma TV, W5001CHD

Reason for Service: 
Dead

Solution:  Replaced 4 Zeners on Y-Mail LJ41-03078A.  ZD5018, 5019, 5021, 5022.  All part # 755-UDZSTE-1733B.

Hitachi TV, 51UWX20B

Reason for Service: 
Focus is out on left and right side only. 

Solution:  Add 2 spark gaps, #CJ00072R.  One between pin 4 & 5 and one between pin
8 & 5 of TF01.

Panasonic TV, PT47WXC43G, 
P8

Reason for Service: 
The picture is over scanned.

Solution: Replace C509.

Prima TV,  LC-40K17

Reason for Service: 
Took many tries to turn the set on, then it was
dead.

Solution:  Found and replaced 8 surface mount caps on both inverter
boards. 47uF/16V.

RCA TV, ATC010

Reason for Service: 
Has a picture for 4 or 5 seconds, but discolored,
then shuts down.

Solution: Check and replace
as necessary, R519, R529, R539.  All  1kΩ, half W flameproof.

RCA TV, ITC008

Reason for Service: Picture too wide & “breathing.”

Solution: Check all:  Il101, (263569) on Pin board, Tl101 on pin
module and Dl021 damper diode.

Sony TV, DA4

Reason for Service: 
Dead, 6 blink error

Solution: Found a bad cap,
off the bridge D6523. C6597, 2200uF/25V.

Toshiba TV, 
42LX196

Reason for Service: 
Works intermittently, red light blinks.

Solution:  Replaced Q820 per bulletin, #23135094

Toshiba TV, 50H81

Reason for Service: 
When set first turned on, picture okay, but then
immediately starts jumping and shrinking vertical and has vertical lines through
it.  Touching the DPC Bd. stopped
it.  Tapping the Bd. made it worse or
shut it down. 

Solution: Intermittent
connections on pins for this Bd., twist them slightly and reseat.

Vizio TV, M3D460SR

Reason for Service: The picture is noisy, and will fade to white when it
warms up.

Solution: Before changing
the T-Con, check for a bad U205, 1.2V regulator.

Vizio TV, V047LFDHTV10A

Reason for Service: Backlight works, but no picture. No on-screen, can’t shut
off.  Uses main 3647-0072-150, fuses okay. 

Solution:  After trying several things, replacing the T-con did fix
the set.