How to enter service mode – Hitachi 26LD6200, service mode adjustments, schematic

Applicable to Hitachi 26LD6200, 32LD6200, 26LD6200IT

SERVICE MENU SETTINGS
All system, geometry and white balance alignments are performed in production service mode. 

Before starting the production mode alignments, make sure that all manual adjustments are done correctly. 

To start production mode alignments enter the MENU by pressing “M” button and then press the digits 4, 7, 2 and 5 respectively. The following menu appears on the screen.

There are 3 submenu in service menu. These are display, calibration and deinterlacer menus. 

Press “◄/►” buttons to select a menu title and then “▲/▼” buttons to select a menu item and “◄/►” or “OK” button to set the menu item to the desired option. To exit the service menu press “M” button.
Entire service menu parameters of Plasma TV are listed below.

Blank color
By pressing c/d button, select blank color. Press e/f button to set the blank color. The options are:
black, red, green and blue.
panel
Displays panel resolution
power on time
Displays total working time of the set
backlight on time
Displays total backlight on time of the set.

Scart prescale
By pressing c/d button, select scart prescaler. Press e/f button to set the scart prescaler. Scart prescale can be adjusted between 0 and 127.
Nicam prescale
By pressing c/d button, select nicam prescaler. Press e/f button to set the nicam prescaler. 

Nicam prescale can be adjusted between 0 and 127.

fm/am prescale
By pressing c/d button, select fm/am prescaler. Press e/f button to set the fm/am prescaler. 

Fm/am prescale can be adjusted between 0 and 127.
subwoofer corner
By pressing c/d button, select subwoofer corner. 

Press e/f button to set the subwoofer corner.
Subwoofer corner can be adjusted between 0 and 7.
subwoofer level
By pressing c/d button, select subwoofer level. Press e/f button to set the subwoofer level.
Subwoofer level can be adjusted between 0 and 32.
AGC adjustment
Adjustment forAutomatic Gain Control of tuner. 

By pressing c/d button, select agc adjustment. 

Press Up/Dn  button to set the agc adjustment. Agc adjustment can be adjusted between 0 and 31.

calibration menu

By pressing “◄/►” buttons select the second icon. calibration menu appears on the screen.

color temp
By pressing up/dn button, select color temp. Press L/R button to set the color temperature. 

The options are: 5500K, 6500K, 7500K, 9300K and user.
user color temp
By pressing up/dn button, select user color temp. 

Press the Right button to increase the user color temperature. 

Press Left button to decrease the user color temperature. 

User color temperature can be adjusted between 5000K and 9300K.
video format
By pressing up/dn button, select video format. 

Press Left/Right button to set the video format. 

The options are: auto, ntsc, pal, secam and NTSC japan.
color space
Displays the current color space used. RGB, YPbPr SMPTE240, YPbPr REC709 and YCbCr REC601.
test pattern
By pressing Up/Dn button, select test pattern. 

Press Left/Right  button to set the test pattern. 

The options are:
none, solid color and vert bars.

color components
By pressing Up/Dn button, select color components. 

Press Left/Right button to set the color components.
The options are: all, red, green and blue.
solid field level
By pressing Up/Dn button, select solid field level. 

Press Right button to increase or Left button to decrease the solid field level. Solid field level can be adjusted between 0 and 64.
adc calibration
Not used for this model.
initial APS
By pressing Up/Dn button, select initial APS. 

Initial aps is selected on or off. If initial aps is wanted on startup, this item should be made on.
factory reset
By pressing Up/Dn button, select factory reset. 

Press “OK” button to return to the factory setting values.

deinterlacer menu
By pressing “◄/►” buttons select the third icon. 

Deinterlacer menu appears on the screen

blank expansion
By pressing Up/Dn button, select blank expansion. 

Blank expantion can be set to on or off by pressing Left/Right button.

DCTI
Digital Colour Transition Improvement: 

By pressing Up/Dn button, select dcti. DCTI can be adjusted between 0 and 255 by pressing Left/Right  button.
DLTI
Digitial luma Transition Improvement: 

By pressing c/d button, select dlti. DLTI can be adjusted between 0 and 255 by pressing e/f button.
luminance peaking
By pressing Up/Dn button, select luminance peaking. 

Luminance peaking can be set to on or off by pressing Left/Right button.
Film mode
By pressing Up/Dnbutton, select film mode. 

Film mode speed can be set to on or off by pressing Left/Right button.

Film mode speed
By pressing Up/Dn button, select film mode speed. 

Film mode speed can be set to 0, 1, 2 or 3 bypressing Left/Right button.
vof
video on film. By pressing Up/Dn button, select vof. VOF can be set to on or off by pressing Left/Right button.
bad cut
By pressing Up/Dn button, select vof. Bad cut can be set to on or off by pressing Left/Right button.
NR threshold
By pressing Up/Dn button, select nr threshold. 

Nr threshold can be set to low or high by pressing Left/Right button.
noise reduction
By pressing Up/Dn  button, select noise reduction. 

Noise reduction can be adjusted between 0 and 255 by pressing Left/Right button.
lai level by pressing Up/Dn button, select lai level. Lai level can be set to 0, 1 or 2 by pressing Left/Right button.
sharpness
By pressing Up/Dn button, select sharpness. 

Sharpness can be adjusted between 0 and 255 by pressingLeft/Right  button.
sparkle
By pressing Up/Dn button, select sparkle. Sparkle can be adjusted between 0 and 255 by pressing Left/Right button.

Factory reset values

Schematic