Tech Tips

CE Professional Tech Tip Sharing

May 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.

Hitachi TV, 53FDX20B

Reason for Service: 
Cannot turn set on with power button on set.  Remote works ok.

Solution: Replaced defective
Q001

Insignia TV, ISLCDTV26

Reason for Service: Dead

Solution: Replacing 3 bad
caps fixed the set.  C940 & C939,
1000uF/35V and C929, 4.7uF/450V.

Mitsubishi TV, 
WS-65515

Reason for Service: 
LED does not stop blinking after plug-in.

Solution:  Check C81A2, C81A3, C81B3 and C81B4 on the DM board.  1000uF/16V, 105°.  If any are bad, replace all of them with
#181P734030.  608uF/16V, 105°.

Mitsubishi TV, WS-65515

Reason for Service: 
LED blinks for about a minute after plug in,  but set won’t start.

Solution:  Check for 3.2V at connector RF pins 4 and 5 on the signal
board.  If low, suspect problems with
switches/buttons on the control board, #934D764001.

Panasonic TV, PT47WXC43G

Reason for Service: 
Repeat HOT failure

Solution:  Check and replace C509 at collector.

Panasonic Plasma, TC-P42X1

Reason for Service: Horizontal bars in the picture.

Solution: Before condemning
it for a bad panel, reseat the cables to the buffers.  If this doesn’t fix it, it is probably a bad
panel.

Philips TV, 50PFP5332D/37

Reason for Service: Dead, relay clicks.

Solution: Check and replace
as necessary, DC8524, DC8407, DC8404, DC8405, all 680uF/50V on the power board.  Also check C5300 on the Y-main.  1000uF/25V

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.

Zenith TV, Z50PJ240-UB

Reason for Service: Dead

Solution:  From a LG bulletin:

No power issue with the LITE ON PSU PCB, that was produced after Nov.
2011.  Caused by weak resistance in the
LITE ON PSU PCB, R929 & R927 should be upgraded.  Models 50PJ and 50PK.   Serial numbers, After 011xxxxxxxx (Nov
2010.)

Use part # EBC60660801

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.

CE Professional Tech Tip Sharing

February 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.

GPX DV6000-09 
TV/DVD Combo

Reason for Service: 
Dead

Solution: Replaced C506,
12uF/100V Non-Polarized cap.

Hitachi TV, 46UX12B

Reason for Service: Loss of color

Solution:  Found leaky ZD-5514.

Panasonic TV, TH42PX60U

Reason for Service: 
Dead, 10 blink error code

Solution: Replaced PA board,
#TXNPA1BJTUE. 

Samsung Plasma TV, PN58B540

Reason for Service: 
Turns off intermittently, cycles

Solution: Use the melody to
guide your troubleshooting.
Does melody play when set turns off ?
No – means power loss, replace power
               supply.
Yes – means the set thinks it shut off
                 normally.  Look at 1 of 2 parts.

If the TV plays a melody, that means it could either be the mainboard or
the function/IR board. When you hear the relay turn on, quickly remove the AC
cord from the wall.  Now disconnect the
function/IR connector from the main board and replug the AC back into the
wall.  Does the set stay on ?

No –  main board bad.

Yes – function/IR board bad.

Sanyo TV, DS31590

Reason for Service: Dead, (after a surge)

Solution: Had to replace all
of the following: Q601, 604 & 605, C609 & C626, IC601 and Q695

Sony TV, KF-xxWE610

Reason for Service: Shutdown with 6 blinks

Solution: Replaced MCZ3001DB
on G1 board.

Toshiba TV, 42HP66

Reason for Service: 
Red sparkles in the picture

Solution: Found a bad cap on
the Y-SUS – C49, 33uF/25V.

Zenith TV, Z50PJ240-UB

Reason for Service: Dead

Solution:  From a LG bulletin: No power issue with the LITE ON PSU
PCB, that was produced after Nov. 2011. 
Caused by weak resistance in the LITE ON PSU PCB, R929 & R927 should
be upgraded.  Models 50PJ and 50PK.  Serial numbers, After 011xxxxxxxx (Nov 2010.)
Use part # EBC60660801.

CE Professional Tech Tip Sharing

January 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, 60SDX88b

Reason for Service: No video, audio red LED flashing

Solution: Reseat sub
Deflection  PCB

Ilo TV, LCT32HA36

Reason for Service: Backlight flashes then set goes dead

Solution: Found 3 bad caps
in the power supply, all 1000uF/35V. 
Replaced.

JVC TV, AV36850

Reason for Service: Dead

Solution:  Replaced C926, 1000uF/16V

Philips TV, 
50PFP5332D/37

Reason for Service: 
Dead

Solution:  Replaced 3 caps, C601 and 609, both 470uF/25V and C036,
100uF/50V

RCA TV, ITC222

Reason for Service: No high voltage, power supply chirps 3 times and shuts
down

Solution: Replace flyback.
If drawing number on fly is 107 56 Xxx, use 259296.  If not, use 265409.  Also replaced TI-010, 2SC5588, #259899 and
DI-012,  BYW34V, #244834.

Samsung TV, HP-S7178WX/XAC

Reason for Service: 
Set powers up then shuts down with all 3 LEDs
blinking

Solution: Found a bad cap on
the ballast, 47uF/450V.  Replaced the
ballast.

Sanyo LCD TV, DP26648

Reason for Service: Dead, fuse Ok.

Solution: Replaced Q601 and
Q602. Part # FQPF16N25C

Sony TV, KF-xxWE610

Reason for service: Shutdown with 6 blinks.

Solution: Replaced MCZ3001DB
on G1 board.

Sony TV, LA3

Reason for Service: 
Dead set with 6 blinks.

Solution:  Replaced IC1607 on the G board, check thermal fuse on
optical block also. Brightness  is
changing every second or so.

Solution: Check power supply
for bad caps.  1000uF/16V.

Toshiba TV, 
42LX196

Reason for Service: 
Dead set, blinks 3 times.

Solution: Problem not the
Seine board, but the power regulator IC Q820 on the power supply board was bad.
SRX2039, #23135094

CE Professional Tech Tip Sharing

December 2014

**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.

Hitachi TV, 46UX12B

Reason for Service: 
No sound from read speakers.

Solution: IC-4614
defective.  Check PCB for 4 unknown
diodes not listed in manual.  Replace the
4 leaky diodes.

Hitachi TV, 
65XWX20B

Reason for Service: 
No video, audio or OSD.  Turning up screens, you will see some.

Solution:  Check video mute AC protect and H BLK, found Q445
shorted.  Replaced.

Magnavox TV, 
27MS4504AC

Reason for Service: 
Set shuts down.

Solution: Screen control
very touchy, try adjusting that. Check for bad solder on the vert IC, and make
sure it has it’s B+

Mitsubishi DLP TV, WD-62327

Reason for Service: 
Dead, Red light error 34.

Solution:  Check for 5V at J-9 connector pin 1 and 2 on the engine
driver board.  If missing, replace the
power board #930B921001.

Panasonic TV, TH42PX60U

Reason for Service: 
Dead, 10 blink error code.

Solution: Replace PA board,
#TXNPA1BJTUE 

RCA TV, MM101CC

Reason for Service: 
No audio coming out of speakers, but had audio on
fixed level.  Audio going into U11702,
but not coming out.

Solution:  Replacing U11702 and Q11701 fixed the set.

Samsung TV, HLR5678WX/XAA

Reason for Service: 
Video seems to shake or flicker. After several
minutes, picture gets too bright.

Solution:  Check for bulged caps on the power board.  Replace as necessary.

Samsung TV, LNT4661FX/Xaa

Reason for Service: The video and OCD is too dark.

Solution: Replacing the
T-Con fixed the set.

Sanyo TV, CLT2054

Reason for Service: Brightness is changing every second or so.

Solution: Check power supply
for bad caps.  1000uF/16V.

Toshiba TV, 37AV502U

Reason for Service: Dead

Solution:  Found two 150V zeners in the power supply bad.

CE Professional Tech Tip Sharing

November 2014

**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.

Hitachi TV, 50V500A

Reason for Service: No audio

Solution: Found open LA01 on
the signal board. Replacing fixed the set.

Mitsubishi TV, WS-65515

Reason for Service: Dead, LED does not blink at plug in

Solution:  Check for 3.3V at the connector RF pin 3.  If low or missing, suspect the reset switch
S7L40 on the control board.  Part
#432P109010

Philips TV, 
42PFL5432D/37

Reason for Service: 
Power Supply still dead after replacing several bad
caps.  It chirps now.

Solution: Replace ZD904 and
902, part number P6KE120A.

RCA TV, ITC222

Reason for Service: No high voltage, power supply chirps 3 times and shuts
down

Solution: Replace the fly.
If drawing number on fly is 107 56 Xxx, use 259296.  If not, use 265409.  Also replaced TI-010, 2SC5588, #259899 and
DI-012,  BYW34V, #244834.

Samsung Plasma TV, PN58B540

Reason for Service: 
Turns off intermittently, cycles

Solution: Use the melody to
guide your troubleshooting.
Does melody play when set turns off ?
No – means power loss, replace power supply.
Yes – means the set thinks it shut off normally.  Look at 1 of 2 parts.

If the TV plays a melody, that means it could either be the main board or
the function/IR board. When you hear the relay turn on, quickly remove the AC
cord from the wall.  Now disconnect the
function/IR connector from the main board and replug the AC back into the
wall. 

Does the set stay on ?

No –  main board bad.

Yes – function/IR board bad.

Sanyo TV, DS31590

Reason for Service: 
Dead, no picture or sound

Solution: Replaced IC301
comb filter (TC90A44P) and D311, D312.

Sony TV, KF50XBR800

Reason for Service: Set cycles on and off a few times before it will stay on

Solution: Replacing the bulb
fixed the set.

Toshiba TV, 42LX196

Reason for Service: Dead with 3 blinking lights

Solution: Replace all 3
regulators in power supply even if only one checks bad. Q820, SRX2039,  Q860, STRZ4479 and Q880, STRW6765. 

CE Professional Tech Tip Sharing

October 2014

**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.

Hitachi TV, 43FWX20B

Reason for Service: IC401 failed more than once

Solution: Check C417
solder.  Add C480 0.1uF/50V to pin 40 and
44 of IC401.

Hitachi TV, 
53SDX01B

Reason for Service:  No audio from ext.
input 2

Solution:  Do a hard reset and re-adjust horizontal position and sub
bright in service mode.

Panasonic TV, PT47WXC43G, 
P8

Reason for Service: 
Picture is over scanned

Solution: Replaced C509.

Philips plasma, 50PF7220A/37

Reason for Service: Won’t start, 6 long blinks and 3 short ones

Solution: Replaced caps 8059
and 8060 in the power supply.  3300uF

RCA TV, MM101CC

Reason for Service: 
No audio coming out of speakers, but had audio on
fixed level.  Audio going into U11702,
but not coming out.

Solution:  Replacing U11702 and Q11701 fixed the set.

Sanyo LCD TV, DP26648

Reason for Service: Dead, fuse okay

Solution: Replaced Q601 and
Q602.   Part # FQPF16N25C

Sanyo TV, DS31590

Reason for Service: 
Dead, no picture or sound

Solution: Replaced IC301
comb filter (TC90A44P) and D311, D312.

Samsung TV LNS4041DX/XAA
Reason for Service: Won’t start, but cycles

Solution:  Check power supply for bad caps and bad solder on Q801,
Q802.

Samsung Plasma TV, HP-S7178WX/XAC

Reason for Service: Set would power up then shut down in a few seconds

Solution:  Replaced bad 47uF/450V cap on the ballast. 

Sony TV, LA3

Reason for Service: 
Dead set with 6 blinks

Solution:  Replaced IC1607 on the G board; also, check thermal fuse
on optical block.

Westinghouse TV, LTV32W1

Reason for Service: Shuts down within a few minutes of turning on

Solution: Look for bad
solder on C310 off pin 2 of the large transformer in the center of the power
supply board.  (T1)

CE Professional Tech Tip Sharing

September 2014

**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.

Hitachi TV, 50V500A

Reason for Service: No picture, no OSD, sound is normal and lamp is on.  Some random color dots can be seen.

Solution: 1.8V from power
supply on  connector PPS2 was
missing.  Replacing the power supply
fixed the set.

Hitachi TV, 
53SDX01B

Reason for Service: 
No audio from ext. input 2

Solution:  Do a hard reset and re-adjust horizontal position and sub
brite in service mode.

Mitsubishi DLP TV, WD-62327

Reason for Service: 
Dead, red light error 34

Solution:  Check for 5V at J-9 connector pin 1 and 2 on the engine
driver board.  If missing, replace the
power board #930B921001.

Philips TV, 
42PFL5432D/37

Reason for Service: 
Power supply still dead after replacing several bad
caps.  It chirps now.

Solution: Replace ZD904 and
902, part number P6KE120A.

RCA TV, MM101

Reason for Service: 
Audio from the left channel was buzzing

Solution: Found a shorted
cap between pins 4 and 6 of the output. 
C11912

Samsung TV LNS4041DX/XAA
Reason for Service: Won’t start, but cycles

Solution:  Check power supply for bad caps and bad solder on Q801,
Q802.

Samsung LNT4069FX/XAA

Reason for Service: 
Picture flashes off and on (backlight problem)

Solution: Replace ICM804 on
power/inverter board, BN44-00167C

Sanyo TV, DS31590

Reason For Service:  Dead, fuse blown
(lightning?)

Solution:  Replace the following parts: Q601,
Q604, Q605, D612 and the 4A fuse

Sony TV, KF42WE610

Reason for Service: 
Lamp enclosure gets too hot

Solution: The sirocco fan
above the housing was clogged; clean it out.

Toshiba TV, 37AV502U

Reason for Service: Dead

Solution:  Found two 150V zeners in the power supply bad.

CE Professional Tech Tip Sharing

August 2014

**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.

Hitachi TV, 46UX12B

Reason for Service: Loss of brightness

Solution: Replaced IC-006.

Hitachi TV, 
65XWX20B

Reason for Service: 
No video, audio or osd.  Turning up screens, you will see some.

Solution:  Check video mute AC protect and H BLK, found Q445
shorted.  Replaced.

JVC TV, AV36850

Reason for Service: Dead

Solution:  Replaced C926, 1000uF/16V.

Mitsubishi TV, WS55909

Reason for Service: Timer light blinks continuously. PS 5V and 3.3V are low.

Solution: Check and replace
C9811 surface mount, located across from the 12V supply on IC9800.

Panasonic TV, PT-47WX53/RP

Reason for Service: No picture but you see retrace lines

Solution: Replaced Q944 and
Q945.

Philips TV, 
50PFP5332D/37

Reason for Service: 
Dead

Solution:  Replaced 3 caps, C601 and 609, both 470uF/25V and C036,
100uF/50V.

Samsung TV, HLR5067W

Reason for Service: 
Vertical stops working, intermittently, good sound
and lamp ok.

Solution: Found SM C9005 in
digital board open. 10uF/10V.

Sharp TV, LC52E77U

Reason for Service: 
Replaced a bad main board, and now a “k” is
flashing on the screen.

Solution: When you turn the
set on and see the k, quickly toggle volume up and channel down together.  You’ll be in the service menu.  Look for Industry Initialization in the menu,
activate it and wait until it finishes. 
Unplug the set then plug it back in and turn it on. The “k” should be
cleared now. 

Sony LCD, 
KDL40V4100

Reason for Service: Picture too dark and color too rich

Solution:  T-Con is bad, but before replacing, try replacing just
the AS15-F chip on it. 

Toshiba TV, 42HP83

Reason for Service: Set would play for a couple of minutes then shut down.
Two blink code.

Solution: One of the fans
had stopped running, replaced with 23125910.