CE Tech Tips — May 2017

CE Tech Tips — May 2017

CE Professional Tech Tip Sharing
May 2017

**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.

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

Emerson TV,  LC320EM2F
Reason for Service: Dead set, no LED
Solution: Check and replace as necessary:  Q600, K10A50D,  Q601, 2SC2120,  R608, 0.18ohm,  D604, 27V zener, D607, NTE177,  D610,  36V zener,  D640, SK2B 

Hitachi TV, 60SDX88B
Reason for Service:  Shuts down
Solution: Q777, Q657 and EP98

Mitsubishi TV, WS55413
Reason for Service: Shuts down when you power on with error 2-2
Solution: On the main board, replaced open fuse F9B01, IC9B02, 270P668020 and D9B07,  264P484030.

Philips TV, 42PFL3704D/F7
Reason for Service:  Set clicks when you plug it in, but won’t turn on
Solution:  Replacing the Digital Main Board fixed the set.  A91H5MMA-002 

Sharp TV, LC32D47U
Reason for Service: Set requiring password, but customer has forgotten it.
Solution:  Initialize set to out-of-box state. While holding down the volume down and input on the set, plug it in.  When you see a ‘K’ on the screen, let the buttons go, then hold down volume and channel on the set.  You should see initialize on the second page. When you see a green screen, unplug the set. 

Sony TV, DA4
Reason for Service:  Shuts down intermittently or will not power up at all
Solution: Was not the MCX3001DB repair.  Replacing the inrush relay, RY6502 fixed the set.

Westinghouse TV, LD-4655VX
Reason for Service:  No backlights
Solution: Set known to have short problems on the ribbons to the LED strips.  Disassemble, inspect and insulate anywhere the ribbons are touching metal.

 

 

 

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