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CE Professional Tech Tip Sharing
December 2016

**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.

Crosley TV, C23HDVDHB
Reason for Service: Have to push Power several times before TV comes on.
Solution: Check for bad caps on small power supply board.  C4, C5, C6 were all bad.  680uF/25V.

Emerson TV,  LC320EM1F
Reason for Service:  It took many tries to get the set to start.
Solution:  Replacing Q1970 and D1979 on the inverter board fixed the set.

Hitachi TV,  57UWX20B
Reason for Service:  No video or audio or OSD.  If you turn up the screens, you see some video.
Solution:  Checking video mute, AC protect and Horiz blanking found Q445 shorted.  Replacing it fixed the set.

Mitsubishi TV,  WD60638
Reason for Service:  After the set is warmed up, picture flickers.
Solution: Replacing the color wheel fixed the set.  938P179010

Philips TV, 50PFP5332D/37
Reason for Service: Intermittently locks up when powering on.
Solution: Replaced all the following caps on the Y main: C5011, C5014, C5024, C5051 and C5065. 

RCA TV,  ITC008
Reason for Service:  Intermittent shutdown.
Solution: Look for bad solder on the end of CL021. This is in the collector circuit of the HOT.  Resoldering this connection fixed the set. 

Samsung TV,  UN55D7000LFXZA
Reason for Service:  When you plug set in, it clicks repeatedly.
Solution: Replacing the power board fixed the set.  BN44-00428A

Samsung Plasma TV, PN50A450P1
Reason for Service:  Primes, but no picture.
Solution:  Replaced C5400 & C5706, (100uF/25V) on the Ysus and C4035, (680uF/25V) on the Zsus.  Also found open 5A fuse on the E Buffer, (runs along the bottom of the set.) 

Toshiba TV, 62HMX94

Reason for Service:  Bad lamp, (shattered), installing new lamp did not fix the set.  Crackling noise in ballast area.
Solution:  Replacing the ballast allowed the set to work with the new bulb.

Appliance Tech Tips
November 2016

Courtesy of Fred’s Appliance Academy

DISCLAIMER: 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 and Fred’s Appliance Academy do not guarantee the accuracy, reliability or safety of this information.
Electrical Shock Hazard: Disconnect power before servicing.
Replace all parts and panels before operating. Failure to do so can result in death or electrical shock.

One of our field techs brought us an Over-the-Range microwave transformer that had an open primary winding (120vac side). Keep in mind, a transformer is not a likely component to fail in a microwave, but it can on VERY rare occasions (typical issues on the high voltage side are usually Magnetron, HV Diode, and/or Capacitor).

After checking the transformer (see below for how to properly check a microwave transformer), we came to find out that the transformer winding for the low voltage primary winding (the 120vac connection tabs) have a varnish on them that will cause the meter to not see the 120vac present at the input. Second, we found after scraping the coating away that the windings themselves are aluminum, not copper.

Whirlpool Microwave HIgh Voltage Transformer

With that said, the soldering joints for the connections of the low voltage primary winding are not holding, which is causing the transformer to look as though the primary winding is open. You will still have to replace the transformer, and we suggest you check the new one as well before pulling the unit off the wall and installing a defective part for nothing. Never try to fix a soldering joint or broken wire on the transformer itself as this poses a danger to not only you as a tech, but to the customer with the possibility that the unit may catch fire.

The transformer was found in a Whirlpool microwave; the part number is W10836753.  Since the same design is used for multiple model numbers and brand names (Maytag, Amana, etc.), we recommend referencing the part number to determine if the transformer you are working on might have the same issue. We expect that this was not an isolated incident, so save yourself the time and hassle and check the transformer before ordering other replacement parts.

To diagnose the working status of a transformer on a Whirlpool OTR Microwave:

• Start by pulling unit down from wall
• Primary winding should have less than 5 ohms
  • No continuity from primary winding to ground
• High voltage secondary should have 35 to 150 ohms
  • Check from high voltage tab to ground
• Low voltage secondary should have less than one ohm
• If either transformer winding has failed, ohms will be way off

Special thanks to Fred’s Appliance Academy
academy.fredsappliance.com

CE Professional Tech Tip Sharing
November 2016

**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, 57UWX20B
Reason for Service: No video.
Solution: Found L306 open, replacing fixed the set.

Mitsubishi TV, LT-52246
Reason for Service:  Dead, no standby.
Solution: Found two bad resistors on the power board, R9A19 and R9A20.  Both 68kohm 

Panasonic Plasma, TCP50S30
Reason for Service:  Shuts down with 8 blink code.
Solution:  Discovered loose ground screws on the SS board.  Replacing them with Panasonic kit, XYN3+F6FJ-18PK, fixed the set. 

Philips TV, 50PFP5332D/37
Reason for Service: Set powers on with the run light, but panel doesn’t prime.
Solution:  Replacing logic control board fixed this set.

RCA TV, F36650, ATC113
Reason for Service: Partial loss of vert on top and bottom; white lines appear in picture.
Solution: Replaced DF01, #155276. 

Samsung TV, LN32C540
Reason for Service:  Has standby, but nothing works.
Solution: Common problem is CM808 in the power supply board.  0.018 polyethylene/800V cap.  (18nF) Use a higher voltage.

Viewsonic TV, N3252W
Reason for Service:  No video, sound okay.
Solution:  Replacing the T-Con fixed the set.  320WA01 

Vizio TV, SV471XVT
Reason for Service:  Won’t come on.  In standby, the amber logo appears, but nothing happens after that.
Solution: Check two 470uF/35V caps on the inverters and replace as needed.

Vizio TV, VX37LHDTV10A
Reason for Service:  Power comes on with backlight, but no audio, video or OSD.  Logo does turn to white.
Solution: Replacing U7, AMC1117 and U9, K1117 fixed the set.

Appliance Tech Tips
October 2016

Courtesy of Fred’s Appliance Academy

DISCLAIMER: 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 and Fred’s Appliance Academy do not guarantee the accuracy, reliability or safety of this information. Electrical Shock Hazard: Disconnect power before servicing. Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.

Customers with Whirlpool/ Maytag French door refrigerators may report ice build up on the floor of the freezer, and the unit will leak about every other day leaving a puddle of water on the floor in either the right or left hand corner of the unit. This is caused by a slow drain in defrost due to what’s called a grommet or duckbill grommet style drain. The theory behind the grommet style drain was to prevent warm air from entering the unit from the compressor compartment causing excessive frost on the evaporator. After a few years of use with the first style grommet, Whirlpool found that the it was getting clogged by dust and pet dander.

Drain Kit

Whirlpool redesigned the grommet in about 2012/2013 to what we refer to as the “duckbill” grommet, which was larger in diameter and would allow more water through to drain quicker, while keeping a good seal to block warm air. The new style grommet lasted a couple of years before Whirlpool once again found that it would clog with dust and pet dander, causing  ice on the bottom of the freezer and the unit to leak water on the floor. Once again it was back to the drawing board for Whirlpool, which led to design of the P-trap style drain kit (pictured right) that we now find in any newer (2015- present) unit. This new style drain kit allows the water from the defrost to drain quickly and also prevents warm air from entering the unit.

This kit is compatible with all 30,″ 33,″ and 36″ wide refrigerator model numbers listed at the bottom of this post. The drain tube kit includes an installation instruction sheet. To install the new kit you will have to access the back of the unit by carefully pulling the unit away from the wall using a scuff shield to prevent floor damage. Once the panel has been removed, you must remove the current drain channel and grommet. Once both parts are removed, you will have to install the white rubber spacer on the portion of the drain that is coming through the bottom, followed by locking the P-trap drain into place in the drain pan.

Once the new kit is installed, it is recommended that you use a steamer (example: Bissell Steam Shot) to clear the ice from the clogged drain located underneath the evaporator. Once the drain is clear, make sure you use a clean towel to wipe the floor of the freezer to prevent any water on the freezer floor caused by the steamer to freeze.

Below is a list of model numbers that may have the grommet:

5GBB19PRYA0, 5GBB19PRYW0, 5GFC20PRAA00, 5GFC20PRAW00, 5GFF25PRYA0, 5GFF25PRYW0,
5GI6FARAF000, 5GI6FARAF001, 5GX0FHTXAF01, 5KBFS20EAX01, 5KRFX9000M00, 5MFI267AA000,
5MFI267AA001, 5MFX257AA000, 5MFX257AA001, 5VGI6FARAF00, 5VGI6FARAF01, 5VMFI267AA00,
5VMFI267AA01, 5VMFX257AA00, 5VMFX257AA01, 7MI2569VEM1, 7MI2569VEM2, 7MI2569VEM3,
7MI2569VEM4, AB1924PEKB3, AB1924PEKB4, AB1924PEKB5, AB1924PEKS4, AB1924PEKS5,
AB1924PEKS6, AB1924PEKS7, AB1924PEKS8, AB1924PEKW3, AB1924PEKW4, AB1924PEKW5,
AB2225PEKB3, AB2225PEKB4, AB2225PEKB5, AB2225PEKS4, AB2225PEKS5, AB2225PEKS6,
AB2225PEKS7, AB2225PEKS8, AB2225PEKW3, AB2225PEKW4, AB2225PEKW5, AB2526PEKW3,
AB2526PEKW4, ABB1921DEW15, ABB1921DEW6, ABB1921FEB12, ABB1921WEW0, ABB1921WEW1,
ABB1921WEW2, ABB1921WEW3, ABB1922FEB2, ABB1922FEB3, ABB1922FED1, ABB1922FED2,
ABB1922FEQ2, ABB1922FEQ3, ABB1922FEW2, ABB1922FEW3, ABB1924WEB0, ABB1924WEB1,
ABB1924WEB2, ABB1924WEB3, ABB1924WED0, ABB1924WED1, ABB1924WEQ0, ABB1924WEQ1,
ABB1924WES0, ABB1924WES1, ABB1924WES2, ABB1924WES3, ABB1924WEW0, ABB1924WEW1,
ABB1924WEW2, ABB1924WEW3, ABB1927VEB2, ABB1927VEW2, ABB192ZDEB5, ABB192ZDEB6,
ABB192ZDEW5, ABB192ZDEW6, ABB192ZWEB0, ABB192ZWEB1, ABB192ZWEW0, ABB192ZWEW1,
ABB2221FEB2, ABB2221FEB3, ABB2221FEW2, ABB2221FEW3, ABB2221WEB0, ABB2221WEB1,
ABB2221WEW0, ABB2221WEW1, ABB2222FEB2, ABB2222FEB3, ABB2222FED1, ABB2222FED2,
ABB2222FEQ2, ABB2222FEQ3, ABB2222FEW2, ABB2222FEW3, ABB2224WEB0, ABB2224WEB1,
ABB2224WEB2, ABB2224WEB3, ABB2224WED0, ABB2224WED1, ABB2224WEQ0, ABB2224WEQ1,
ABB2224WES0, ABB2224WES1, ABB2224WES2, ABB2224WES3, ABB2224WEW0, ABB2224WEW1,
ABB2224WEW2, ABB2224WEW3, ABB2227VEB1, ABB2227VEB2, ABB2227VEW1, ABB2227VEW2,
ABB2522FEB2, ABB2522FEB3, ABB2522FEQ2, ABB2522FEQ3, ABB2522FEW2, ABB2522FEW3,
ABL1922FES3, ABL1922FES4, ABL1922FES5, ABL1922FES6, ABL1927VES1, ABL1927VES2,
ABL1927VES3, ABL1927VES4, ABL192ZFES3, ABL192ZFES4, ABL192ZFES5, ABL192ZFES6,
ABL192ZWES0, ABL192ZWES1, ABL2222FES3, ABL2222FES4, ABL2222FES5, ABL2222FES6,
ABL2227VES1, ABL2227VES2, ABL2227VES3, ABL2227VES4, ABR1922FES3, ABR1922FES4,
ABR1922FES5, ABR1922FES6, ABR1927VES1, ABR1927VES2, ABR1927VES3, ABR1927VES4,
ABR192ZFES3, ABR192ZFES4, ABR192ZFES5, ABR192ZFES6, ABR192ZWES0, ABR192ZWES1,
ABR2222FES3, ABR2222FES4, ABR2222FES5, ABR2222FES6, ABR2227VES1, ABR2227VES2,
ABR2227VES3, ABR2227VES4, AFB2234WEB0, AFB2234WEB10, AFB2234WEB2, AFD2535DEB11,
AFD2535DEW11, AFF2534FES3, AFF2534FES4, AFF2534FES5, AFF2534FES6, AFF2534FES7,
AFF2534FES8, AFF2534FEW2, AFF2534FEW3, AFF2534FEW4, AFF2534FEW5, AFI2538AEB4,
AFI2538AEB5, AFI2538AEQ4, AFI2538AES4, AFI2538AES5, AFI2538AES6, AFI2538AES7,
AFI2538AEW4, AFI2538AEW5, CB19G6W00W5, CB19G6W00W6, CB19G7B00B4, CB19G7B00B5,
CB19G7W00W4, CB19G7W00W5, EB9FVBLVS01, EB9FVBLWS01, EB9FVBLWS02, EB9FVBLWS03,
EB9FVBLWS04, EB9FVBLWS05, EB9FVBLWS06, EB9FVBRVS01, EB9FVBRWS01, EB9FVBRWS02,
EB9FVBRWS03, EB9FVBRWS04, EB9FVBRWS05, EB9FVBRWS06, EB9FVBXVB01, EB9FVBXVQ01,
EB9FVBXWB00, EB9FVBXWB01, EB9FVBXWB02, EB9FVBXWQ00, EB9FVBXWQ01, EB9FVBXWQ02,
EB9FVBXWQ03, EB9FVHLVS01, EB9FVHLVS02, EB9FVHLVS03, EB9FVHLVS04, EB9FVHLWS00,
EB9FVHLWS01, EB9FVHLWS02, EB9FVHLWS03, EB9FVHRVS01, EB9FVHRVS02, EB9FVHRVS03,
EB9FVHRVS04, EB9FVHRWS00, EB9FVHRWS01, EB9FVHRWS02, EB9FVHRWS03, EB9FVHXVB01,
EB9FVHXVB02, EB9FVHXVQ01, EB9FVHXVQ02, EB9FVHXWB00, EB9FVHXWB01, EB9FVHXWB02,
EB9FVHXWB03, EB9FVHXWQ00, EB9FVHXWQ01, EB9FVHXWQ02, EB9FVHXWQ03, EB9SHKXVQ01,
EB9SHKXVQ02, EB9SHKXVQ03, EB9SHKXVQ04, EB9SHKXVQ05, EB9SHKXVQ06, EB9SHKXVQ07,
G20EFSB23S8, G20EFSB23S9, G25EFSB23S4, G25EFSB23S5, G25EFSB23S6, G25EFSB23S7,
G25EFSB23S8, G25EFSB23S9, G32026PEKS5, G32026PEKS6, G32026PEKS7, G32026PEKS8,
G32026PEKS9, G32026PEKW4, G32026PEKW5, G32026PELB4, G32026PELB5, G32027WEKB3,
G32027WEKB4, G32526PEKB3, G32526PEKB4, G32526PEKS4, G32526PEKS5, G32526PEKS6,
G32526PEKW3, G32526PEKW4, G37025PEAS1, G37025PEAS2, G37025PEAS3, G37025PEAS4,
G37025PEAS5, G37025PEAS6, G37025PEAW1, G37025PEAW2, G37025PEAW3, G37026FEAS1,
G37026FEAS2, G37026FEAS3, G37026FEAS4, G37026FEAS5, G37026FEAS6, G37026FEAW1,
G37026FEAW2, G37026FEAW3, GB1924PEKB3, GB1924PEKB4, GB1924PEKS4, GB1924PEKS5,
GB1924PEKS6, GB1924PEKW3, GB2026LEKS4, GB2026LEKS5, GB2026LEKS6, GB2026LEKS7,
GB2026LEKS8, GB2026PEKB3, GB2026PEKB4, GB2026PEKB5, GB2026PEKW3, GB2026PEKW4,
GB2026PEKW5, GB2026REKS4, GB2026REKS5, GB2026REKS6, GB2026REKS7, GB2026REKS8,
GB2225PEKW3, GB2225PEKW4, GB2526LEKS3, GB2526LEKS4, GB2526LEKS5, GB2526LEKS6,
GB2526PEKW3, GB2526PEKW4, GB2526REKS3, GB2526REKS4, GB2526REKS5, GB2526REKS6,
GB2FHDXWB00, GB2FHDXWB01, GB2FHDXWB02, GB2FHDXWB03, GB2FHDXWB04, GB2FHDXWB05,
GB2FHDXWB06, GB2FHDXWD00, GB2FHDXWD01, GB2FHDXWD02, GB2FHDXWQ00,
GB2FHDXWQ01, GB2FHDXWQ02, GB2FHDXWQ03, GB2FHDXWQ04, GB2FHDXWQ05,
GB2FHDXWQ06, GB2FHDXWQ07, GB2FHDXWS00, GB2FHDXWS01, GB2FHDXWS02, GB2FHDXWS03,
GB2FHDXWS04, GB2FHDXWS05, GB2FHDXWS06, GB2FHDXWS07, GB2FHDXWS08, GB2SHDXTB02,
GB2SHDXTB03, GB2SHDXTD01, GB2SHDXTD02, GB2SHDXTQ02, GB2SHDXTQ03, GB2SHDXTS02,
GB2SHDXTS03, GB2SHDXTS04, GB2SHTXTB02, GB2SHTXTB03, GB2SHTXTQ02, GB2SHTXTQ03,
GB2SHTXTS02, GB2SHTXTS03, GB2SHTXTS04, GB2SHTXTS05, GB5525PEAS1, GB5525PEAS2,
GB5525PEAS3, GB5525PEAS4, GB5525PEAS5, GB5525PEAW1, GB5525PEAW2, GB5525PEAW3,
GB5526FEAS1, GB5526FEAS2, GB5526FEAS3, GB5526FEAS4, GB5526FEAS5, GB5526FEAW1,
GB5526FEAW2, GB5526FEAW3, GB6525PEAS1, GB6525PEAS2, GB6525PEAS3, GB6525PEAS4,
GB6525PEAS5, GB6525PEAW1, GB6525PEAW2, GB6525PEAW3, GB6526FEAS1, GB6526FEAS2,
GB6526FEAS3, GB6526FEAS4, GB6526FEAS5, GB6526FEAW1, GB6526FEAW2, GB6526FEAW3,
GB9FHDXWB00, GB9FHDXWB01, GB9FHDXWB02, GB9FHDXWB03, GB9FHDXWB04, GB9FHDXWB05,
GB9FHDXWB06, GB9FHDXWD01, GB9FHDXWQ00, GB9FHDXWQ01, GB9FHDXWQ02,
GB9FHDXWQ03, GB9FHDXWQ04, GB9FHDXWQ05, GB9FHDXWQ06, GB9FHDXWS00,
GB9FHDXWS01, GB9FHDXWS02, GB9FHDXWS03, GB9FHDXWS04, GB9FHDXWS05, GB9FHDXWS06,
GB9FHDXWS07, GB9FHDXWS08, GI0FSAXVA01, GI0FSAXVB01, GI0FSAXVB02, GI0FSAXVB03,
GI0FSAXVB04, GI0FSAXVB05, GI0FSAXVB06, GI0FSAXVB07, GI0FSAXVB08, GI0FSAXVB09,
GI0FSAXVQ01, GI0FSAXVY01, GI0FSAXVY010, GI0FSAXVY011, GI0FSAXVY02, GI0FSAXVY03,
GI0FSAXVY04, GI0FSAXVY05, GI0FSAXVY06, GI0FSAXVY07, GI0FSAXVY08, GI5FSAXVA01,
GI5FSAXVB01, GI5FSAXVB02, GI5FSAXVQ01, GI5FSAXVS01, GI5FSAXVS02, GI5FSAXVY01,
GI5FSAXVY02, GI5FSAXVY04, GI5FSAXVY05, GI5FVAXVB01, GI5FVAXVB02, GI5FVAXVB03,
GI5FVAXVB04, GI5FVAXVL01, GI5FVAXVL02, GI5FVAXVQ01, GI5FVAXVQ02, GI5FVAXYB00,
GI5FVAXYQ00, GI5FVAXYY00, GI5SVAXVB01, GI5SVAXVB02, GI5SVAXVB03, GI5SVAXVL01,
GI5SVAXVQ01, GI5SVAXVQ02, GI5SVAXVQ03, GI6FARXXB00, GI6FARXXB02, GI6FARXXB03,
GI6FARXXB04, GI6FARXXB05, GI6FARXXB06, GI6FARXXB07, GI6FARXXF00, GI6FARXXF01,
GI6FARXXF02, GI6FARXXF04, GI6FARXXF05, GI6FARXXF06, GI6FARXXQ00, GI6FARXXQ02,
GI6FARXXQ03, GI6FARXXQ04, GI6FARXXQ05, GI6FARXXQ06, GI6FARXXQ07, GI6FARXXY00,
GI6FARXXY02, GI6FARXXY03, GI6FARXXY04, GI6FARXXY05, GI6FARXXY06, GI6FARXXY07,
GI6FARXXY08, GI6FDRXXB00, GI6FDRXXB01, GI6FDRXXB02, GI6FDRXXB03, GI6FDRXXB04,
GI6FDRXXB05, GI6FDRXXB06, GI6FDRXXB08, GI6FDRXXB09, GI6FDRXXQ00, GI6FDRXXQ01,
GI6FDRXXQ02, GI6FDRXXQ03, GI6FDRXXQ04, GI6FDRXXQ05, GI6FDRXXQ06, GI6FDRXXQ08,
GI6FDRXXQ09, GI6FDRXXY00, GI6FDRXXY01, GI6FDRXXY010, GI6FDRXXY02, GI6FDRXXY03,
GI6FDRXXY04, GI6FDRXXY05, GI6FDRXXY06, GI6FDRXXY07, GI6FDRXXY09, GI6SARXXF00,
GI6SARXXF01, GI6SARXXF02, GI6SARXXF03, GI6SARXXF04, GI6SARXXF05, GI6SARXXF06,
GI6SDRXXB00, GI6SDRXXB01, GI6SDRXXB02, GI6SDRXXB03, GI6SDRXXB04, GI6SDRXXB06,
GI6SDRXXQ00, GI6SDRXXQ01, GI6SDRXXQ02, GI6SDRXXQ03, GI6SDRXXQ04, GI6SDRXXQ06,
GI6SDRXXV00, GI6SDRXXV01, GI6SDRXXY00, GI6SDRXXY01, GI6SDRXXY02, GI6SDRXXY03,
GI6SDRXXY04, GI6SDRXXY05, GI6SDRXXY06, GI6SDRXXY07, GI7FVCXWA00, GI7FVCXWA01,
GI7FVCXWA03, GI7FVCXWB00, GI7FVCXWB01, GI7FVCXWB03, GI7FVCXWQ00, GI7FVCXWQ01,
GI7FVCXWQ03, GI7FVCXWY00, GI7FVCXWY01, GI7FVCXWY02, GI7FVCXWY03, GI7FVCXWY05,
GI7FVCXXA00, GI7FVCXXA01, GI7FVCXXB00, GI7FVCXXB01, GI7FVCXXQ00, GI7FVCXXQ01,
GI7FVCXXY00, GI7FVCXXY01, GI7FVCXXY02, GI7FVCXXY03, GX2FHDXVA00, GX2FHDXVA02,
GX2FHDXVA03, GX2FHDXVB00, GX2FHDXVB02, GX2FHDXVB03, GX2FHDXVB04, GX2FHDXVB05,
GX2FHDXVB06, GX2FHDXVB07, GX2FHDXVB08, GX2FHDXVD00, GX2FHDXVQ00, GX2FHDXVQ02,
GX2FHDXVQ03, GX2FHDXVQ04, GX2FHDXVQ05, GX2FHDXVQ06, GX2FHDXVT00, GX2FHDXVT02,
GX2FHDXVT03, GX2FHDXVY00, GX2FHDXVY010, GX2FHDXVY02, GX2FHDXVY03, GX2FHDXVY04,
GX2FHDXVY05, GX2FHDXVY06, GX2FHDXVY07, GX2FHDXVY08, GX2FHDXVY09, GX2SHBXVB00,
GX2SHBXVB02, GX2SHBXVB03, GX2SHBXVB04, GX2SHBXVB05, GX2SHBXVB06, GX2SHBXVB07,
GX2SHBXVQ00, GX2SHBXVQ02, GX2SHBXVQ03, GX2SHBXVQ04, GX2SHBXVQ05, GX2SHBXVY00,
GX2SHBXVY02, GX2SHBXVY03, GX2SHBXVY04, GX2SHBXVY05, GX2SHBXVY06, GX2SHBXVY07,
GX2SHBXVY08, GX2SHBXVY09, GX2SHDXVB00, GX2SHDXVB02, GX2SHDXVD00, GX2SHDXVQ00,
GX2SHDXVY00, GX2SHDXVY02, GX5FHDXVA01, GX5FHDXVA02, GX5FHDXVA03, GX5FHDXVA04,
GX5FHDXVB01, GX5FHDXVB03, GX5FHDXVB04, GX5FHDXVB05, GX5FHDXVB06, GX5FHDXVB07,
GX5FHDXVB08, GX5FHDXVD01, GX5FHDXVD02, GX5FHDXVQ01, GX5FHDXVQ02, GX5FHDXVQ03,
GX5FHDXVQ04, GX5FHDXVQ05, GX5FHDXVQ06, GX5FHDXVQ07, GX5FHDXVT01, GX5FHDXVT02,
GX5FHDXVY01, GX5FHDXVY010, GX5FHDXVY02, GX5FHDXVY03, GX5FHDXVY04, GX5FHDXVY05,
GX5FHDXVY06, GX5FHDXVY07, GX5FHDXVY08, GX5FHDXVY09, GX5FHTXVA01, GX5FHTXVA02,
GX5FHTXVA03, GX5FHTXVA04, GX5FHTXVB01, GX5FHTXVB03, GX5FHTXVB04, GX5FHTXVB05,
GX5FHTXVB06, GX5FHTXVB07, GX5FHTXVB08, GX5FHTXVQ01, GX5FHTXVQ02, GX5FHTXVQ03,
GX5FHTXVQ04, GX5FHTXVQ05, GX5FHTXVQ06, GX5FHTXVQ07, GX5FHTXVY01, GX5FHTXVY010,
GX5FHTXVY02, GX5FHTXVY03, GX5FHTXVY04, GX5FHTXVY05, GX5FHTXVY06, GX5FHTXVY07,
GX5FHTXVY08, GX5FHTXVY09, GX5SHDXVA01, GX5SHDXVA02, GX5SHDXVB01, GX5SHDXVB03,
GX5SHDXVD01, GX5SHDXVD03, GX5SHDXVQ01, GX5SHDXVQ02, GX5SHDXVQ03, GX5SHDXVT01,
GX5SHDXVY01, GX5SHDXVY02, GX5SHDXVY03, GX5SHDXVY04, GX5SHDXVY05, GX5SHTXVA01,
GX5SHTXVB01, GX5SHTXVQ01, GX5SHTXVY01, GX5SHTXVY02, GZ25FDRXYY0, GZ25FSRXYY0,
GZ25FSRXYY1, GZ25FSRXYY2, GZ25FSRXYY4, GZ25FSRXYY5, GZ25FSRXYY6, GZ25FSRXYY7,
ITB19440Q03, IX5HHEXWS01, IX5HHEXWS03, IX5HHEXWS04, IX5HHEXWS05, IX5HHEXWS06,
IX5HHEXWS07, IX5HHEXWS08, IX5HHEXWS09, IX5HHEXWS10, JBD2286KEB2, JBD2286KEB3,
JBL2088HES4, JBL2088HES5, JBL2088WEM0, JBL2088WEM1, JBL2286KES3, JBR2088HES4,
JBR2088HES5, JBR2088WEM0, JBR2088WEM1, JBR2286KES3, JFC2089HEP4, JFC2089HEP5,
JFC2089HEP6, JFC2089HES4, JFC2089HES5, JFC2089HES6, JFC2089HPF3, JFC2089HPF4,
JFC2089HPR2, JFC2089HPR3, JFC2089HPY3, JFC2089HPY4, JFC2089HTB3, JFC2089HTB4,
JFC2089HTW3, JFC2089HTW4, JFC2089WEM0, JFC2089WEM1, JFC2089WEM11, JFC2089WEM2,
JFC2089WEM3, JFC2089WEM4, JFC2089WEM5, JFC2089WEM6, JFC2089WEM7, JFC2089WEM9,
JFC2089WEP0, JFC2089WEP1, JFC2089WEP11, JFC2089WEP2, JFC2089WEP3, JFC2089WEP4,
JFC2089WEP5, JFC2089WEP6, JFC2089WEP7, JFC2089WEP9, JFC2089WTB0, JFC2089WTB1,
JFC2089WTB2, JFC2089WTB3, JFC2089WTB4, JFC2089WTB5, JFC2089WTB7, JFC2089WTB9,
JFC2089WTW0, JFC2089WTW1, JFC2089WTW2, JFC2290VEM1, JFC2290VEM2, JFC2290VEM3,
JFC2290VEM4, JFC2290VEM5, JFC2290VEM6, JFC2290VEM7, JFC2290VEM8, JFC2290VEP1,
JFC2290VEP2, JFC2290VEP3, JFC2290VEP4, JFC2290VEP5, JFC2290VEP6, JFC2290VEP7,
JFC2290VEP8, JFC2290VPF1, JFC2290VPF2, JFC2290VPF3, JFC2290VPF4, JFC2290VPF5,
JFC2290VPR0, JFC2290VPR1, JFC2290VPR2, JFC2290VPR3, JFC2290VPR4, JFC2290VPY1,
JFC2290VPY2, JFC2290VPY3, JFC2290VPY4, JFC2290VPY5, JFC2290VTB1, JFC2290VTB2,
JFC2290VTB3, JFC2290VTB4, JFC2290VTB5, JFD2589KEP3, JFD2589KEP4, JFD2589KEP5,
JFD2589KES3, JFD2589KES4, JFD2589KES5, JFI2089AEB2, JFI2089AEP12, JFI2089AEP13,
JFI2089AEP2, JFI2089AEP3, JFI2089AEP4, JFI2089AEP5, JFI2089AEP6, JFI2089AEP7, JFI2089AEP8,
JFI2089AEP9, JFI2089AES2, JFI2089AES3, JFI2089AEW2, JFI2089ATS2, JFI2089WES0, JFI2089WES1,
JFI2089WES2, JFI2089WES3, JFI2089WES4, JFI2089WES5, JFI2089WES6, JFI2089WES8,
JFI2089WES9, JFI2089WTS0, JFI2089WTS1, JFI2089WTS2, JFI2089WTS3, JFI2089WTS4,
JFI2089WTS6, JFI2089WTS7, JFI2589AEP2, JFI2589AEP3, JFI2589AES2, JFI2589AES3, JFX2597AEM0,
JFX2597AEM2, JFX2597AEM3, JFX2597AEP0, JFX2597AEP2, JFX2597AEP3, KBFL25EVMS1,
KBFL25EVMS2, KBFS20EVBL1, KBFS20EVBL2, KBFS20EVBL3, KBFS20EVBL4, KBFS20EVBL5,
KBFS20EVBL6, KBFS20EVBL8, KBFS20EVMS1, KBFS20EVMS11, KBFS20EVMS13, KBFS20EVMS2,
KBFS20EVMS3, KBFS20EVMS4, KBFS20EVMS5, KBFS20EVMS6, KBFS20EVMS7, KBFS20EVMS8,
KBFS20EVMS9, KBFS20EVWH1, KBFS20EVWH2, KBFS20EVWH3, KBFS20EVWH4, KBFS20EVWH5,
KBFS20EVWH6, KBFS20EVWH8, KBFS22EWBL1, KBFS22EWBL2, KBFS22EWBL3, KBFS22EWBL5,
KBFS22EWBL7, KBFS22EWMS1, KBFS22EWMS3, KBFS22EWMS4, KBFS22EWMS5, KBFS22EWMS7,
KBFS22EWMS9, KBFS22EWWH1, KBFS22EWWH2, KBFS22EWWH3, KBFS22EWWH5,
KBFS22EWWH7, KBFS25EVBL1, KBFS25EVBL2, KBFS25EVMS1, KBFS25EVMS2, KBFS25EVMS3,
KBFS25EVMS4, KBFS25EVWH1, KBFS25EVWH2, KBFS25EWBL0, KBFS25EWBL1, KBFS25EWBL2,
KBFS25EWBL3, KBFS25EWBL4, KBFS25EWBL5, KBFS25EWBL7, KBFS25EWBL9, KBFS25EWMS0,
KBFS25EWMS1, KBFS25EWMS10, KBFS25EWMS2, KBFS25EWMS3, KBFS25EWMS4, KBFS25EWMS5,
KBFS25EWMS6, KBFS25EWMS8, KBFS25EWWH0, KBFS25EWWH1, KBFS25EWWH2,
KBFS25EWWH3, KBFS25EWWH4, KBFS25EWWH5, KBFS25EWWH7, KBFS25EWWH9, KBLS19KTMS3,
KBLS20EVMS1, KBLS20EVMS2, KBLS20EVMS3, KBLS20EVMS4, KBLS20EVMS5, KBLS22EVMS1,
KBLS22EVMS2, KBLS22EVMS3, KBLS22KVSS1, KBLS22KVSS2, KBLS22KVSS3, KBLS22KVSS4,
KBLS22KWMS4, KBLS22KWMS5, KBLS22KWMS6, KBRL22EVMS4, KBRS19KTBL7, KBRS19KTMS3,
KBRS19KTWH7, KBRS20EVBL1, KBRS20EVBL2, KBRS20EVBL3, KBRS20EVBL4, KBRS20EVMS1,
KBRS20EVMS2, KBRS20EVMS3, KBRS20EVMS4, KBRS20EVMS5, KBRS20EVMS6, KBRS20EVWH1,
KBRS20EVWH2, KBRS20EVWH3, KBRS22EVBL1, KBRS22EVBL2, KBRS22EVMS1, KBRS22EVMS2,
KBRS22EVMS3, KBRS22EVMS4, KBRS22EVWH1, KBRS22EVWH2, KBRS22KVBL1, KBRS22KVBL2,
KBRS22KVSS1, KBRS22KVSS2, KBRS22KVSS3, KBRS22KVSS4, KBRS22KVWH1, KBRS22KVWH2,
KBRS22KWBL4, KBRS22KWBL5, KBRS22KWBL6, KBRS22KWBL7, KBRS22KWMS4, KBRS22KWMS5,
KBRS22KWMS6, KBRS22KWWH4, KBRS22KWWH5, KBRS22KWWH6, KBRS22KWWH7,
KFCO22EVBL1, KFCO22EVBL2, KFCO22EVBL3, KFCO22EVBL4, KFCO22EVBL5, KFCP22EXMP1,
KFCP22EXMP2, KFCP22EXMP3, KFCP22EXMP4, KFCP22EXMP5, KFCS22EVBL1, KFCS22EVBL2,
KFCS22EVBL3, KFCS22EVBL4, KFCS22EVBL5, KFCS22EVMS1, KFCS22EVMS2, KFCS22EVMS3,
KFCS22EVMS4, KFCS22EVMS5, KFCS22EVMS6, KFCS22EVMS7, KFCS22EVMS8, KFCS22EVWH1,
KFCS22EVWH2, KFCS22EVWH3, KFCS22EVWH4, KFCS22EVWH5, KFIL27CXMP0, KFIL27CXMS0,
KFIL27CXMS1, KFIL27CXMS2, KFIL27CXMS3, KFIL27CXMS4, KFIL27CXMS5, KFIS20XVBL1,
KFIS20XVBL2, KFIS20XVBL3, KFIS20XVBL4, KFIS20XVBL5, KFIS20XVBL6, KFIS20XVBL7,
KFIS20XVBL8, KFIS20XVMS1, KFIS20XVMS10, KFIS20XVMS11, KFIS20XVMS2, KFIS20XVMS3,
KFIS20XVMS4, KFIS20XVMS5, KFIS20XVMS6, KFIS20XVMS7, KFIS20XVMS8, KFIS20XVWH1,
KFIS20XVWH2, KFIS20XVWH3, KFIS20XVWH4, KFIS20XVWH5, KFIS20XVWH7, KFIS20XVWH8,
KFIS25XVBL1, KFIS25XVBL2, KFIS25XVBL3, KFIS25XVBL4, KFIS25XVBL5, KFIS25XVBL6,
KFIS25XVMS1, KFIS25XVMS10, KFIS25XVMS2, KFIS25XVMS4, KFIS25XVMS5, KFIS25XVMS6,
KFIS25XVMS7, KFIS25XVMS8, KFIS25XVMS9, KFIS25XVWH1, KFIS25XVWH2, KFIS25XVWH3,
KFIS25XVWH4, KFIS25XVWH5, KFIS25XVWH6, KFIS27CXBL0, KFIS27CXBL1, KFIS27CXBL2,
KFIS27CXBL3, KFIS27CXMS0, KFIS27CXMS1, KFIS27CXMS2, KFIS27CXMS3, KFIS27CXMS4,
KFIS27CXMS5, KFIS27CXMS6, KFIS27CXWH0, KFIS27CXWH1, KFIS27CXWH2, KFIS27CXWH3,
KFXL25RYMS0, KFXL25RYMS1, KFXL25RYMS2, KFXL25RYMS4, KFXS25RYBL0, KFXS25RYBL1,
KFXS25RYBL2, KFXS25RYBL4, KFXS25RYBL5, KFXS25RYMS0, KFXS25RYMS1, KFXS25RYMS2,
KFXS25RYMS4, KFXS25RYMS5, KFXS25RYWH0, KFXS25RYWH1, KFXS25RYWH2, KFXS25RYWH4,
KFXS25RYWH5, KRFC90100B2, KRFC90100B3, KRFC90100B4, KRFC90100B5, MB2216PUAW2,
MBB1952HEB1, MBB1952HEW5, MBB1953WEB0, MBB1953WEB1, MBB1953WEB2, MBB1953WEW0,
MBB1953WEW1, MBB1953WEW2, MBB1953XEB0, MBB1953XEB1, MBB1953XEW0, MBB1953XEW1,
MBB1953XEW2, MBB1953XEW3, MBB1957VEB1, MBB1957VEB2, MBB1957VEW1, MBB1957VEW2,
MBB1957WEB0, MBB1957WEB1, MBB1957WEB2, MBB1957WEB3, MBB1957WEW0, MBB1957WEW1,
MBB1957WEW2, MBB1957WEW3, MBF1952VEW1, MBF1953YEB0, MBF1953YEB2, MBF1953YEB3,
MBF1953YEB4, MBF1953YEW0, MBF1953YEW2, MBF1953YEW3, MBF1953YEW4, MBF1956KEB2,
MBF1956KEB3, MBF1956KEB4, MBF1956KEQ2, MBF1956KEQ3, MBF1956KEQ4, MBF1956KEW2,
MBF1956KEW3, MBF1956KEW4, MBF1958WEB0,MBF1958XEB4, MBF1958XEB5,MBF1958XES4,
MBF1958XES5, MBF1958XEQ1, MBF1958XEW5, MBF2256KEB2, MBF2256KEB3, MBF2256KEQ2,
MBF2256KEQ3, MBF2256KEW2, MBF2256KEW3, MBF2258WEB0, MBF2258WEB1, MBF2258WES0,
MBF2258WES1, MBF2258WES2, MBF2258WES3, MBF2258WEW0, MBF2258WEW1, MBF2258XEB0,
MBF2258XEB1, MBF2258XEB3, MBF2258XEB4, MBF2258XEB5, MBF2258XEQ0, MBF2258XEQ1,
MBF2258XEW0, MBF2258XEW1, MBF2258XEW3, MBF2258XEW4, MBF2258XEW5, MBF2556KEB3,
MBF2556KEQ3, MBF2556KEW3, MBL1953XES3, MBL1956KES6, MBL1956KES7, MBL1957VES1,
MBL1957VES2, MBL1957VES3, MBL1957VES4, MBL1957VES5, MBL1957WES0, MBL1957WES1,
MBL1957WES2, MBL1957WES3, MBL2256KES3, MBL2256KES4, MBL2256KES6, MBL2258XES0,
MBL2258XES1, MBL2258XES3, MBL2258XES4, MBL2258XES5, MBL2556KES4, MBL2556KES5,
MBR1952KES3, MBR1953WES1, MBR1953WES2, MBR1953WES3, MBR1953WES4, MBR1953XES0,
MBR1953XES1, MBR1953XES2, MBR1953XES3, MBR1953YES0, MBR1953YES2, MBR1953YES3,
MBR1953YES4, MBR1956KES3, MBR1956KES4, MBR1956KES5, MBR1956KES6, MBR1956KES7,
MBR1957VES1, MBR1957VES2, MBR1957VES3, MBR1957VES4, MBR1957VES5, MBR1957WES0,
MBR1957WES1, MBR1957WES2, MBR1957WES3, MBR2256KES3, MBR2256KES4, MBR2256KES6,
MBR2258XES0, MBR2258XES1, MBR2258XES3, MBR2258XES4, MBR2258XES5, MBR2556KES4,
MBR2556KES5, MFC2061HEB4, MFC2061HEB5, MFC2061HEW4, MFC2061HEW5, MFC2061KES10,
MFC2061KES14, MFC2061KES3, MFC2061KES4, MFC2061KES5, MFC2061KES6, MFC2061KES7,
MFC2061KES8, MFC2061KES9, MFD2562VEA1, MFD2562VEA2, MFD2562VEB1, MFD2562VEB3,
MFD2562VEB4, MFD2562VEB5, MFD2562VEB6, MFD2562VEB9, MFD2562VEM1, MFD2562VEM11,
MFD2562VEM2, MFD2562VEM3, MFD2562VEM4, MFD2562VEM5, MFD2562VEM6, MFD2562VEM7,
MFD2562VEM8, MFD2562VEM9, MFD2562VEW1, MFD2562VEW2, MFD2562VEW3, MFD2562VEW4,
MFD2562VEW5, MFD2562VEW6, MFD2562VEW8, MFF2258VEA10, MFF2258VEA2, MFF2258VEB10,
MFF2258VEB2, MFF2258VEB3, MFF2258VEB4, MFF2258VEB5, MFF2258VEB6, MFF2258VEB7,
MFF2258VEB8, MFF2258VEM2, MFF2258VEM3, MFF2258VEM4, MFF2258VEM5, MFF2258VEM6,
MFF2258VEM7, MFF2258VEM8, MFF2258VEM9, MFF2258VEW10, MFF2258VEW2, MFF2258VEW3,
MFF2258VEW4, MFF2258VEW5, MFF2258VEW6, MFF2258VEW7, MFF2558VEA1, MFF2558VEA2,
MFF2558VEB1, MFF2558VEB3, MFF2558VEB4, MFF2558VEB5, MFF2558VEB6, MFF2558VEB7,
MFF2558VEB8, MFF2558VEM1, MFF2558VEM10, MFF2558VEM2, MFF2558VEM3, MFF2558VEM4,
MFF2558VEM5, MFF2558VEM6, MFF2558VEM9, MFF2558VEQ1, MFF2558VEQ2, MFF2558VEW1,
MFF2558VEW2, MFF2558VEW3, MFF2558VEW4, MFF2558VEW5, MFF2558VEW6, MFF2558VEW7,
MFI2067AEB4, MFI2067AEB5, MFI2067AEQ4, MFI2067AES10, MFI2067AES11, MFI2067AES4,
MFI2067AES5, MFI2067AES6, MFI2067AES7, MFI2067AES8, MFI2067AES9, MFI2067AEW4,
MFI2269VEA1, MFI2269VEB1, MFI2269VEB2, MFI2269VEB3, MFI2269VEB4, MFI2269VEB5,
MFI2269VEB6, MFI2269VEB7, MFI2269VEB8, MFI2269VEB9, MFI2269VEM1, MFI2269VEM11,
MFI2269VEM2, MFI2269VEM3, MFI2269VEM4, MFI2269VEM5, MFI2269VEM6, MFI2269VEM7,
MFI2269VEM8, MFI2269VEM9, MFI2269VEQ1, MFI2269VEQ2, MFI2269VEQ3, MFI2269VEQ4,
MFI2269VEQ5, MFI2269VEQ7, MFI2269VEQ8, MFI2269VEW1, MFI2269VEW2, MFI2269VEW3,
MFI2269VEW4, MFI2269VEW5, MFI2269VEW7, MFI2269VEW8, MFI2569VEA1, MFI2569VEA2,
MFI2569VEB1, MFI2569VEB2, MFI2569VEB3, MFI2569VEB4, MFI2569VEM1, MFI2569VEM2,
MFI2569VEM3, MFI2569VEM4, MFI2569VEQ1, MFI2569VEQ2, MFI2569VEW1, MFI2569VEW2,
MFI2569YEB0, MFI2569YEB1, MFI2569YEB2, MFI2569YEM0, MFI2569YEM1, MFI2569YEM2,
MFI2569YEW0, MFI2569YEW1, MFI2569YEW2, MFI2665XEB0, MFI2665XEB1, MFI2665XEB2,
MFI2665XEB3, MFI2665XEB4, MFI2665XEB5, MFI2665XEB6, MFI2665XEB7, MFI2665XEM0,
MFI2665XEM1, MFI2665XEM2, MFI2665XEM3, MFI2665XEM4, MFI2665XEM5, MFI2665XEM6,
MFI2665XEM7, MFI2665XEM8, MFI2665XEW0, MFI2665XEW1, MFI2665XEW2, MFI2665XEW3,
MFI2665XEW4, MFI2665XEW5, MFI2665XEW6, MFI2665XEW7, MFI2670XEB0, MFI2670XEB1,
MFI2670XEB2, MFI2670XEB3, MFI2670XEB4, MFI2670XEB5, MFI2670XEB6, MFI2670XEB8,
MFI2670XEB9, MFI2670XEM0, MFI2670XEM1, MFI2670XEM10, MFI2670XEM2, MFI2670XEM3,
MFI2670XEM4, MFI2670XEM5, MFI2670XEM6, MFI2670XEM7, MFI2670XEM9, MFI2670XEW0,
MFI2670XEW1, MFI2670XEW2, MFI2670XEW3, MFI2670XEW4, MFI2670XEW5, MFI2670XEW6,
MFI2670XEW8, MFI2670XEW9, MFT2771WEB0, MFT2771WEB1, MFT2771WEM0, MFT2771WEM1,
MFT2771WEM2, MFT2771WEM3, MFT2771WEW0, MFT2771WEW1, MFT2771XEB0, MFT2771XEB1,
MFT2771XEM0, MFT2771XEM1, MFT2771XEW0, MFT2771XEW1, MFX2570AEB0, MFX2570AEB3,

CE Professional Tech Tip Sharing
October 2016

**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, 60SX2K
Reason for Service:  Loss of audio in the surround mode only.
Solution:  Replaced defective three way surround board.

Insignia TV, NS-LCD32-09
Reason for Service:  Dead
Solution: There was no 12v or 24v coming from the power supply.  Q952 was shorted.  K4097

LG TV, 50PG20
Reason for Service:  Shuts down, or starts to prime then shuts down.
Solution:  Check for bad solder on the power supply board or bad Q801 and Q802.  If these are okay, replace the power supply.  #EAY41360901

Philips TV, 50PFP5332
Reason for Service: No picture, but set has audio.
Solution: Replaced y-main and C4712 and fuse on x-main.

Philips TV, 52PFL5704D/F7
Reason for Service:  No video, but has sound and backlight.
Solution: Try this before replacing boards: take out the board, remove the cooling pads from the ICs, soak and scrub board with acetone, put the cooling pads back on and try the set.

RCA TV, F36650, ATC113
Reason for Service: Vertical shrinks after the set warms up.
Solution: Replacing the eprom IR02 fixed the set. #258098 

Samsung TV, UN55D7000LFXZA
Reason for Service:  When you plug set in, it clicks repeatedly.
Solution: Replacing the power board fixed the set.  BN44-00428A

Samsung TV, HLP6163WX (DLP Set)
Reason for Service:  Picture has thin black lines top to bottom.
Solution:  Replacing the DMD board fixed the set.

Sanyo TV, DP42740 plasma
Reason for Service:  Set clicks on, then right back off.
Solution: 200V source was only 130V.  Replace the Logic control module.

Sony TV, KDL46NX700
Reason for Service:  Dead, relay clicks, gives a two blink code.
Solution:  Replaced the following in the power supply:  Q6101 & Q6102, used NTE2903 and fusible resistor R6536 open.  0.47ohm/one half W.

Vizio TV, GV47LFHDTV10A
Reason for Service:  Backlight okay, but no video
Solution:  Found open fuse, F3, 1.5A SM on main board.  Also check all the 1117 regulators.