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Describe your sanyo cm21fs2. THE MODEL TV ABOVE HAS THE PICTURE BUT HAS NO SOUND TILL I SHOT THE VOLUME IC 1LA1116N PINS FOR VCC AND VDD

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6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

SOURCE: tv has sound but picture is black

good day.
The crt circuit of the unit might be loose or the the parts inside the board is loose. Have it hecked by a technician first. Minor parts inside might caused the problem.

Response is highly appreciated.


chris

Posted on Mar 29, 2008

SOURCE: sanyo vizon dp42746 problem

me too i bought mine like 11/2 years ago

Posted on Jul 20, 2008

jingjao
  • 252 Answers

SOURCE: SANYO TV MODEL CM20SP8S CHASSIS AC3-A20

try to fine tune your tv using the remote control, or, if you had knowleged in electronics adjust the sound IF transformer using a wood stick or plastic don't use a metal in adjusting the IF

Posted on Oct 10, 2008

  • 75 Answers

SOURCE: I have a Sanyo 32 inch tv, model # DS31650, that has no sound

My book says no audio, storm damage need to replace ic 3601 (CXA1279AS part number 409 279 3109) this is probley a surface mount ic on the bottom of board.

Posted on Mar 09, 2009

  • 1 Answer

SOURCE: my sanyo tv has no picture no sound 31"color tv

my grand son unplugged my sanyo tv 32in from wall while on no wi have no picture and no sound

Posted on Aug 05, 2009

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1 Answer

Samsung TV, after being on ~ 30 seconds, produces a sound from the speakers as if a sound buffer is stuck repeating a snippet. TV will cycle power; the above repeats ad infinitum. How do a fix this?


Hi
Please check aoudio output section . it's may by transister or ic becomes heats. If so need to replace it or may check audio section vcc voltage may be more then normal.

Sep 10, 2015 | Samsung Televison & Video

2 Answers

Sanyo DP58D33 has no picture but has audio


This can be from your main board or your power supply unit. To test which one is bad simply try putting your volume up or down while the TV is on. If the volume changes it is most likely your power supply unit, If nothing happens then it is most likely your main unit. Both are available here: 1LG4B10Y11900 Z7GB Sanyo Power Supply Unit for DP58D33 1LG4B10Y117000 Z7GB Sanyo Main Board for DP58D33

Apr 21, 2014 | Sanyo DS24425 24" TV

1 Answer

I HAVE A SANYO MODEL 31590 NO PICTURE SOUND JUST A LINE IN THE CENTER


hi..hope this help you....a horizontal line in the center is an indication of defective vertical IC...its looks like a tab w/ 10-12 pins and has heatsink...your TV would works out fine when you replace the IC....but its better if let a technician replace this....pls. don't forget to rate and vote....thanks...

Feb 17, 2011 | Sanyo DS31590 31" TV

1 Answer

My Panasonic TC-21Z88RBN doesn’t displays the total picture vertically ,when the picture is display it like not in the center of the screen sum of it is disappear in the bottom


Hello

Your TVs vertical output section has the fault. You just open your TV after disconnecting it from the AC mains wall socket, and locate the vertical output section. This section uses an Ic marked as part [IC 401] on the board and its number is LA7840. Just look for any loose soderings around its components legs, and the solderings at the IC legs, which has 7 of them. The IC stated above will be screwed onto a heatsink to radiate heat out of it when it works.
If all soldering point are fine, come towards the IC legs and measure the voltages at each leg. The voltages must be
pin 1= Ground
pin 2= 12.6
pin 3= 24.7
pin 4= 4.4
pin 5= 4.4
pin 6= 24v [vcc]
pin 7= 1.8
All voltages stated above are DC voltages with respect to ground. If any of this voltage is missing, find out the reason for that. If all of them are noted abnormal, IC may be defective, and replace it.
[vcc] stands for main input voltage to the IC.
If you need any more assistance, feel free to contact me through Fixya. Ok.

Dec 07, 2010 | Panasonic TC-21Z88R 21" TV

1 Answer

The volume on my television keeps going down by itself. I have a picture on the screen but no sound


Audio circuit is not getting supply voltage. Dry solder, weak capacitor could lead to this problem.

Check the audio IC no and search in Google. Check the Vcc, Vss, Vdd pins and check the voltages. Trouble shoot accordingly. Check speaker capacitors also .

Aug 22, 2010 | Curtis-Mathis Televison & Video

1 Answer

SOUND BUT NO PICTURE WHEN DVD IS PLAYING


Need to check an av switching ic. Make sure you got the 12v going to the ic, if missing troublle shoot power supply. If it is there, bad ic. Or if it is low, unsolder vcc pin and check for right voltage to see if the ic is bringing down the voltage.

Aug 31, 2009 | Sony KP-46V35 TV

1 Answer

Sound But No Picture


The problem as you describe it usually means a vertical problem for a standard TV and the solution is either to resolder the pins of the IC or to replace it. I am not familiar with the board layout of your model, but there should be a small flat IC attached to a heat sinh with about 9-11 pins. It may be marked LA7837 or something similar. Try resoldering the pins first. If that fails to resolve the problem, replace the IC.

Please note that there are potentially dangerous high voltages present even with the set unplugged.

Dan

Jul 17, 2009 | Hitachi 51F59 51" HDTV Projection...

2 Answers

Horizonal picture 4 inches high across middle of screen


Hello jpm1lo, your problem needs someone with some repair skills to assist you, firstly your TV has both a horizontal and a vertical circuit,your problem is in the vertical circuit. The IC (integrated circuit) in the vertical area should be changed together with the 2 or 3 cylindrical capacitors ( number will vary in different brand names) also in the same circuit. This will rectify your problem.....Rudney

Mar 22, 2009 | Sanyo DS27800 27" TV

1 Answer

36"toshiba tv


sound is produced by so many components, but i will mention criticle ones. take your tv to w/shop
and let them check the following
speaker continuity resistance
capacitor coupling ( electrolitic) feeding a speaker
final amplifier IC
Vcc voltage feeding the IC
or a jack which seperates speaker and external sound. im positive it will work

May 22, 2008 | Toshiba CX36F84 TV

2 Answers

Sony TA-F210 amplifier no sound


bring data sheet of this ic from the net-check supply voltage(vcc or vdd)-check ground.apply audio signal and test if it is present in input pins after that check your signal in output pins.have a visual inspection around the ic for burnt resistors or bad capacitor. if every thing is fine replace the IC.

Oct 05, 2007 | Audio Players & Recorders

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