Mar 31, 2016 - Is there a firmware update for the Olevia LCD TV 237-T12 - Answered by a. 40 years experience as audio,video repair and installation tech. I haven't tried updating the firmware, but I haven't gotten around to registering on the olevia site to see if there are any firmware updates anyway. So when I went home and tried it, it installed fine and low and behold, it WORKS!! It's printed in the back of your TV to download the correct firmware for it. Olevia 232-S12 SM.

Whenever I switch to a channel number of 40 and above I loose my picture and quite often sound too. After a while (sometimes after a day being unplugged) I get the TV picture and sound back. I suspect it to be a firmware problem. However to be able to download the latest level firmware from the Olevia site I need an FM number (Example: FM 1-XXX-XXXXXXXXX above the model number) I cannot find the sticker with either number on the set that HeartlandRV installed. Any suggestions on the label or even better the problem? Has anyone discovered a way to reset the TV (none of the controls on the unit or remote control work when I have this problem)? Yes, the setup is fine.

The reception is fine. Everything is fine for days until I get into the 40's channels then it sometimes quits. When I get it going again all picture settings are screwed up. I am suspicious of the firmware, it really smells like a typical programming error or maybe a CMOS problem.

Does everyone have a sticker with FM number and Serial number on the unit? Am I the only one without one? Maybe the sticker is behind the steel mounting plate? I hate to dismount the TV and not find anything there either. I am using Air and I am receiving both analogue and digital transmissions. The high channels seem to be all digital (I don't want to go check and maybe have no TV for the rest of the day!) Very weird, when this all happens and I remove the coax of the TV set and switch the set back on, I have a couple of seconds the channel back (colors are screwed up) with a picture! Maybe what's still left in memory??

After a few seconds I lose the picture but not always the sound. Does sound like witchcraft doesn't it? On another forum (avsforum.com) I found the same problem for the Olevia 232v 32' series 2 TV with the same TV station WWSB. I quote from it 'Came with A21 firmware. Only one problem with the set so far. In Tampa, FL there's a channel out of Sarasota (channel 40). Analog 40.0 works great, but both 40.1 and 40.2 with two different antennas lock up the TV.

It'll play for about 4-5 seconds, go black, then audio drops out. I have to unplug the TV and plug it back in. And disconnect the antenna to get No Signal, or else the problem repeats as soon as you turn it on since 40.1 was the last channel. All other OTA channels work fine.

Updated to the newest firmware. There were no reactions to the posting.

Obviously there is something in the digital signal of this station that creates havock with the Olevia firmware. I took the easy way out and placed 40.1 and 40.2 on the skip list.

Service Manu Version TITLE LCD TV For 232-S12 Page 1/44 Service Manual LCD TV For 232-S12 Doc No.： Version：1.0 Total Pages：41 Revise by Revise by Approval Made by Daniel Villa Randal J. Cook Hans Chung Kanzi Lee 12/8/06. Service Manual TITLE Version LCD TV For 232-S12 Page 2/44 Table of Contents 1. Introduction.3 1-1 Preface.3 1-2 Caution.3 1-3 Warning.3 2.

Specifications.4 3. Wiring Diagram.5 4. Trouble shooting flow chart.6 4-1 Abnormal Display.6 4-2 Abnormal Power On/Off.7 4-3 LED Light Abnormal Display、Keypad Problem.8.

Service Manual TITLE Version LCD TV For 232-S12 Page 3/44 1. Introduction 1-1 Preface This service manual describes module-level LCD TV repair for qualified service personnel. This service manual also includes selected production troubleshooting information for electronic technicians and engineers.

Service Manual TITLE Version LCD TV For 232-S12 Page 4/44 2. Specifications PRODUCT SPECIFICATIONS LCD Panel 32' TFT Power Management ＜ 1W (Standby Mode) Displayable Resolution VGA 1360*768 max. Pixel Pitch 0.17025mm x 0.51075mm x RGB LCD Display Color 16.7M colors(8-bits colors). Service Manual TITLE Version LCD TV For 232-S12 Page 5/44 3. Wiring Diagram. Service Manual TITLE Version LCD TV For 232-S12 Page 6/44 4.

Trouble shooting flow chart 4-1 Display Problems Note: Refer to the Wiring Diagram during troubleshooting for a visual of inter-connections when indicated by this symbol. Trouble Condition. Service Manual TITLE Version LCD TV For 232-S12 Page 7/44 4-2 Abnormal Power On/Off Trouble Condition Check Item Replace Material Test Abnormal Power On/Off Step1: Check Power Supply, Con. Fail Replace Power No Power CN904–pin 7 to ground = 5VS supply Con.CN904 pin 8 to ground =. Service Manual TITLE Version LCD TV For 232-S12 Page 8/44 4-3 LED is Malfunctioning、Keypad Problem Trouble Condition Check Item Replace Material Test Step1： Check CN 1 on system Fail Secure connection or board to CN 1 on Keypad. Service Manual TITLE Version LCD TV For 232-S12 Page 9/44 4-4 Image Problems Trouble Condition Check Item Replace Material Test 1. Reconnect cable Step1： No picture through Fail 2.