Hisense HSM 515AV TV Service mode.
Main power +B setting
Receive standard color pattern RF signal，set picture to “ Standard Mode” . Adjust VR501，to get +B (VD542 -) voltage =110 V
I2C bus control adjustment methed: How to enter Hisense HSM 515AV factory mode Use TVs remote controller, Press [menu] key -> display picture menu Press digital key “ 6” “ 4” “ 8” “ 3” -> display “ M” .
Push [standby] key one time to exit factory mode and return to normal.
How to select menus in factory mode: In factory mode ( “M” mode), there are ten menus totally. Menu1 to Menu4 can be selected directly, but Menu 5 to Menu0 must be select by these steps:
Press “CALL ” button, to call “M”.
Press “LOCK” button, then press any one numeric key from 5 to 0.
For example, to select Menu 7, you should press “call” key and LOCK key in turns, then press the numeric key 7.
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