For entering into Service Mode: * Set 30 minutes by pressing the "TIMER" button on the remote handset. * Now Simultaneously press "RECALL" button on remote handset and "VOL-"button on the front panel of TV. ** Panasonic Colour TV Chassis: MX-3, MX-3C Models: TS-2150T, TS-2150TS, TC-14S10M, TC-14S10A For entering into Service Mode : Settings > (various menus) > highlight channel tuning> press 1 five times. Select "more" on bottom right for additional HDMI/Video info. Press green button 8 times. Small popup with basic video info, including VRR. Press mute 3 times quickly. Service menu, notably the LG Logo display option and AV Power sync options. Here is a picture below for reference: The following are given some firmware/software files free download links of most common brands of Digital CRT TV available in the market. Show entries. Search: S.No. TV Brand Name. Download Link. 1. Toshiba CRT TV. COLOR TV CIRCUIT DIAGRAM – USING ICs TDA9361 – KA5Q0765H LCD-39XZ12F PAL-B/G NTSC(AV) (New Zealand) _ Sanyo LCD TV_ Main Power Factory Reset_Service Mode _ HITACHI UT42X902 / D8MW – UT42V702 / D8MW Hitachi P42H401 Plasma TV Service menu · HITACHI TV Panasonic TV Lg Crt Tv Circuit Diagram.pdf Free Download Here TV Trouble Shooting Manual Here we go, Step by Step: 1. Open up the front panel. 2. PRESS AND HOLD DOWN the MENU KEY on the front panel of the tv. 3. WHILE HOLDING DOWN THE MENU KEY ON THE FRONT OF THE TV UNDER THE FLIP DOWN PANEL, PRESS and HOLD DOWN THE MENU KEY on your SUPPLIED ZENITH remote. 4. This will ACCESS what I think is the first menu of the Zenith Service Menu. Service Menu Code For LG TV: Press and hold buttons on remote as well as TV panel for a few seconds and the service menu will appear on your TV screen. For some TV models, you might need to press 'Menu' buttons on remote and TV panel simultaneously for a few seconds to access the service menu. All TV Service Menu Code. 9,628 likes · 1 talking about this. http://tvservicemenu.blogspot.com/p/content.html TV Service Menu, Service Mode, Factory Mode Setting x0nCK.