20 Most Recent Sony MCS-8M Audio/Video Mixing Switcher - Questions & Answers


he fl uorescent indicator tube after turning the power on
DAMP Mount Diagnosis Flow (1/2)
"PROTECT3" is displayed on the
screen display panel after turning
the power on.
Yes
Check that DAMP board IC2002
pin 27, 32, 35 and 39 is short to
GND.
No
No
Check and replace the speaker.
"PROTECT3" is not displayed,
when removing the speaker and
turning the power on.
Yes
Yes Exchange DAMP board IC2002
(6-721-742-01)
No
Yes
DAMP board damage. Exchange
complete DAMP board.
Exchange DAMP board IC2003
(6-721-742-01)
Check that DAMP board IC2003
pin 27, 32, 35 and 39 is short to
GND.
thanks
M NAsir

Sony Televison &... | Answered 2 hours ago


Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices.
https://homenol.blogspot.com/
https://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.
Search the site by type in the "brand name" to your device, [Exclude the model number] in the "Search box at the top right of the display window of the Homepage" to get gathered related posts.

Sony Televison &... | Answered 2 days ago


The unfortunate part Mike Miller is a lot of people doing videos on youtube on how to repair sets really don't know what they are doing and sending people in the wrong direction with bad answers, they have something that fixed their set and think that is the only part that would cause the issue or causing parts to be ordered that aren't bad....here is what you do to diagnose your TV...I pulled my service manual for your set and this code is from a backlight dimming error, there are 2 things that would cause this, 1st is the LD board is bad and needs replacing...I have a link at the bottom for a new board from shopjimmy.com...2nd would be some bad LED lamps in the panel and its shutting down the PMW (pulse width modulation) signal and turning off the LD board (chances are this is what is happening as that board seldom fails)...if your able and feel comfortable doing it you can measure the voltage at the PMW pin on the power board...it should show between 3.5 and 5 volts depending on what setting the backlights are set at...If you see that voltage when you power the set up and its running but it goes to nothing when the set shuts off then its lamps.. Most likely you have a couple failed lamps in the panel as of now but more will burn out if you don't get it fixed and the run time will get shorter and shorter as more of them fail over time..if that voltage should stay when the screen goes back then its the LD board...Good luck...
Search results for kdl70w850b

Sony Televison &... | Answered 2 days ago


You can buy another replacement remote control if your remote control is the only one defective.

Sony Televison &... | Answered 3 days ago


your tv panel is defective already, if it's still under warranty claim it to service center.

Sony Televison &... | Answered 3 days ago


There's a internal ND filter mechanism check around the optical block detecting that something is not working.
Send it over to a Sony Service to repair, there's nothing you can do about it.

Sony Televison &... | Answered on Feb 14, 2019

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