Hitachi 26LD6600, 32LD6600, 37LD6600, 26LD6600A, 32LD6600A, 37LD6600A, 32LD6600B Power supply (SMPS) circuit diagram, How to enter the service mode

 

Main PWB: Vestel 17MB08, 17MB15

Service menu

To enter the service menu, first enter the MENU by pressing MENU button and then press the digit 4, 7, 2 and 5 respectively.

Picture adjust: source:  all possible sources given with the chassis as list.

Mode:  three items as a list; Natural, Dynamic, Cinema

Color temp:  three items as a list; Cool, Normal, Warm.

Contrast:  slider bar.  Changing value between 0 and 63.

Brightness: slider bar.  Changing value between 0 and 63.

Sharpness:  slider bar.  Changing value between 0 to 31.

Color: slider bar.  Changing the value between 0 to 99.

R:  slider bar. Changing the value between 0 to 31.

G:  slider bar.  Changing the value between 0 to 31.

B:  slider bar.  Changing the value between 0 to 31.

Backlight:  slider bar.  Changing the value between 0 to 255.

In this menu preset values for each mode (contrast, brightness, sharpness, color values for each mode NATURAL, DYNAMIC, CINEMA and for each color temp: R, G, B values for each color temp- COOL, NORMAL, WARM are determined for each source.

Block diagram

PCB layout

RESONANT MODE TFT POWER SUPPLY: 26, 32 and 37 inch Hitachi LCD TVs