TV. Sound ok, No picture, no glow.

ruijorgemorenoMarch 19, 2012

17" tv, AG brand.

Chassis model 40-MNTV2KM-L4W.

Sound is ok and it changes channels, etc. But NO picture.

I hear that 15kHz range sound and there is static in the screen.

Did a fast check and Supply voltages are apparently good.

Anode discharded to ground with spark, confirming that it was charged.

What could cause this?

Tomorrow I'll check the HOT to see if it's broken.

Thanks in advance.


Thank you for reporting this comment. Undo

Since you have already determined, although not measured, anode cap voltage was present and some other voltages derived were present, I would not suspect the HOT.

Look for correct screen voltages to the CRT grids - usually around 160 volts - (could be related to HOT derived supply voltage rectification/filtering), proper blanking waveforms during the VBI, and any video blanking/muting circuits on the input side.

Don't know anything about the brand, chassis, or if it's NTSC or PAL - just standard troubleshooting on CRT displays.

Good luck!

    Bookmark   March 20, 2012 at 11:20PM
Sign Up to comment
More Discussions
plug-in 15w bulb caused sticky mess (wax melt)
Stupid me, I bought a plug-in wax melter / tart-warmer...
Need a new Tv, thoughts on led/plasma
Im in the market to get a new tv. I have always preferred...
POTS phone extension over local ethernet?
Through a mess up in communication I got a gigabit...
we have cinemax on our cable tv service. we dont pay...
Headphone jack
Dug up a sub-mini plug for my home phone earphone jack....
Sponsored Products
Palmer Entertainment Console - OAK
$1,199.00 | Horchow
AICO Furniture - The Sovereign Media Cabinet - 57000TV3-51
Great Furniture Deal
Rebecca Console
$379.99 | Dot & Bo
Authentic Models KA038 Avalon Telescope
Beyond Stores
George Kovacs Polished Chrome Arc Floor Lamp
Euro Style Lighting
Cattelan Italia | Altea Credenza
People viewed this after searching for:
© 2015 Houzz Inc. Houzz® The new way to design your home™