Used ICs: TDA7056A (Audio Amplifier) –LA7841 (Vertical scan output) – 2SK2671 (SMPS switching output FET) – DPM001T1 (SMPS control) – DW8632CM1 (Microprocessor) – 24LC04B (Memory) – DCT812 (NT/PAL Chroma Jungle) - Daewoo DTH-14V1FS,
DTH-20V1FS, DTH-21V1FS, DTH-14V3FS, DTH-20V3FS, DTH-21V3FS, DTH-14V4FS, DTH-20V4FS,
DTH-21V4FS.
* Turn
the set on.
* Direct the remote control to the reception window of TV.
* Push buttons of remote control in sequence as follows.
1 => MUTE => DISPLAY => MUTE
The service mode screen will appear.
* Direct the remote control to the reception window of TV.
* Push buttons of remote control in sequence as follows.
1 => MUTE => DISPLAY => MUTE
The service mode screen will appear.
* Using
the channel up or channel down button, select the item you wish to adjust. (The color of selected item turns into the
red.)
* Press the volume up or down button to enter in the service mode you wish to adjust.
* Press the volume up or down button to enter in the service mode you wish to adjust.
* Press
DISPLAY button the state which the screen is displaying each of service menus after
all adjustments are completed each of all service menu.
SCREEN ADJUSTMENT (S2)
Enter the service mode and select service adjustment S2.
Adjust the Screen Control Volume (located on FBT) so that the horizontal line onscreen may be disappeared.
Press the volume up or down button to exit in the screen adjustment mode.
Power supply Circuit diagram (SMPS Split)
Full schematic
Click on the pictures to magnify
