Question about Panasonic CT-20G13 20" TV

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Tuner and AV problem

Hi....i have two problem on my panasonic tv....first, can't find channel at VHF-H and UHF band, only channel that using VHF-L was ok. second, i've lost my AV sound, but for tv sound is ok....the picture for AV also good. please someone to help me........what component are in trouble?

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Re: Tuner and AV problem


Posted on Jul 05, 2007

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I have an rca G36705 and I just need to know if it has a digital tuner or if o need a converter box to hook an antenna to it?

Its inputs include "Composite" and "S-Video".

Itttkk Its *ANALOG* tuner has channel coverage:
VHF:2-13, UHF:14-69, Cable:1-125, VHF:2-13, UHF:14-69, Cable:1-125

So, you will need a digital tuner.


Jun 05, 2015 | RCA Standard (CRT) Televisions

1 Answer

Why will my tv not tune in bbc chanels

HI. It might be that your set is not equipped for S-band reception.
Some channels are in this S-band. Sometimes, you must choose between H/S band scanning. (The H stands for the normal VHF-UHF channels 2-62. )

Oct 12, 2014 | Bush Standard (CRT) Televisions

1 Answer

Okay, here I am again, wanting to know how to add cable channels to my Hitachi C21 F800S TV. It currently only shows one channel, BET. Please help! Thanks!

1 Press menu button to enter the menu screens for the following optional adjustable settings.choose
3-AUTO SEARCH (Activate to auto search & preset receivable broadcast stations)

-if it don't work change this
4Press menu button to enter the menu screens for the following optional adjustable settings.choose
6-BAND (change the band system for tuning (i.e. VHF-L,VHF-H or UHF).

if VHF-L don't work try VHF-H or UHF and restart all over

good luck

Oct 05, 2014 | Standard (CRT) Televisions

1 Answer

I have a Curtis Mathes tv/CZ2026RE I need to get to channel 97 for my DVD/VCR to work but cannot get to it, HELP PLEASE

Channel 97 comes in UHF band. If you do not able to tune this channel, the tuner of your TV may need repalce ment. Now it is OK with respect to VHF bands.

Feb 04, 2012 | Standard (CRT) Televisions

1 Answer

Tuner will not pick up cable box on channel 3, front and rear AV

In order for the TV to work with the cable box by using a piece of coax and tuning the TV to channel 3, you must make sure the TV is in "Cable" mode on the tuner and not "AIR or Antenna" the frequency maps are different between these types of service and channel 3 cable will not be the same as channel 3 on Air or UHF/VHF.

Often there is an auto program feature on TV's that will "scan" for all available channels, and this should select the proper input type.

Hope this helps!

Mar 29, 2009 | Philips Magnavox MS3652S 36" TV

1 Answer

Sanyo ds 31350 tv

Hi there!

Assuming that you tried to tune stations onto the UHF bandwidth and received nothing,Commonly the tuner box is probably at fault and needs replacement. The VHF and UHF signals are split inside the tuner so if you receive VHF fine then UHF should as well unless faulty of course. Some circuits require an external IC to do the switching, but more on the older models. Regards and good luck, JUS004

Apr 02, 2008 | Standard (CRT) Televisions

2 Answers

No cable

try going into the menu of the tv and changing the tuner type from ANT to Cable

Jan 28, 2008 | Sony FD Trinitron WEGA KV-20FS120 20" TV

1 Answer

Can not pick up uhf frequencies and only 3 channels from vhf

Replace tuner, get number and order from MCM, or Bluestar-online, Tritronics.

Aug 22, 2007 | Zenith SY2031S TV

1 Answer

Will not show channels below 51

The GE (actually RCA) 35GT690 uses the CTC187 series chassis. The tuner uses the VHF circuits for cable channels lower then 51 and the UHF circuits for the higher channels. This means that the VHF circuits have stopped working in your set. I usually find that this is caused by a defective U7301 IC in the tuner, the SIP IC labeled CXA1594L. This is a very difficult IC to change and all tuner ground solder joints should be resoldered too, so that should be done by someone with experience in the CTC187 chassis.

Jul 05, 2007 | GE 35GT690 35" TV

1 Answer

VHF stations WILL NOT display. UHF stations WILL display. Have tried both the remote and the controls on the TV. What is the solution?

a no ufh channels would be a setting in the menu, but when your vhf channels go, the problem is typically the tuner itself, or the band switching ic. could be either. you will need a schematic to know what voltage is supposed to be on the pins.

Jan 24, 2007 | Zenith B25A10Z 25" TV

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