HITACHI 32LD8A20 - 37LD8A20
SERVICE MODE AND POWER SUPPLY CIRCUIT
SERVICE MENU SETTINGS
In order to reach service menu,
First Press “MENU” then press the remote control code, which is “4725”
In order to reach service menu,
First Press “MENU” then press the remote control code, which is “4725”
Picture Mute
If “Yes” selected, “Picture mute” feature is active.
Blue Screen
If “Yes” selected, “Blue Background” item is seen in “Feature” menu.
YC Delay
Tuner PAL <.....> Value between -8 to+7
Ext PAL <.....> Value between -8 to+7
SECAM <.....> Value between -8 to+7
If “Yes” selected, “Picture mute” feature is active.
Blue Screen
If “Yes” selected, “Blue Background” item is seen in “Feature” menu.
YC Delay
Tuner PAL <.....> Value between -8 to+7
Ext PAL <.....> Value between -8 to+7
SECAM <.....> Value between -8 to+7
NTSC
<.....> Value between -8 to+7
AGC (dB) <.....> Value between 0 to+8
AudioSetup
Equaliser
If “Yes” selected, “Equaliser” item is seen in “Sound” menu.
AudioSetup
Equaliser
If “Yes” selected, “Equaliser” item is seen in “Sound” menu.
BBE
SRS WOW
Virtual Dolby Surround
If “Yes” selected, Virtual Dolby Surround feature is seen in “Sound” menu with selected Virtual Dolby Text.
SRS WOW
Virtual Dolby Surround
If “Yes” selected, Virtual Dolby Surround feature is seen in “Sound” menu with selected Virtual Dolby Text.
Virtual Dolby Text The selected item is seen as
Virtual Dolby Srround Text.
3DS
Virtual Dolby
3D Panorama
AVL
If “Yes” selected, “AVL” item is seen in “Sound” menu.
3DS
Virtual Dolby
3D Panorama
AVL
If “Yes” selected, “AVL” item is seen in “Sound” menu.
Carrier Mute
If “Yes” selected, “Carrier mute” feature is active.
Audio Delay Offset
Prescale
FM Presc. AVL On <.......> Value between 0 to +127
AM Presc. AVL On <.......> Value between 0 to +127
NICAM Presc. AVL On <.......> Value between 0 to +127
I2S Presc. AVL On <.......> Value between 0 to +127
SCART Presc. AVL On <.......> Value between 0 to +127
FM Presc. AVL Off <.......> Value between 0 to +127
AM Presc. AVL Off <.......> Value between 0 to +127
NICAM Presc. AVL Off <.......> Value between 0 to +127
I2S Presc. AVL Off <.......> Value between 0 to +127
SCART Presc. AVL Off <.......> Value between 0 to +127
Dynamic Bass
If “Yes” selected, “Dynamic Bass” item is seen in “Sound” menu.
Subwoofer
If “Yes” selected, “Subwoofer” item is seen in “Sound” menu.
If “Yes” selected, “Carrier mute” feature is active.
Audio Delay Offset
Prescale
FM Presc. AVL On <.......> Value between 0 to +127
AM Presc. AVL On <.......> Value between 0 to +127
NICAM Presc. AVL On <.......> Value between 0 to +127
I2S Presc. AVL On <.......> Value between 0 to +127
SCART Presc. AVL On <.......> Value between 0 to +127
FM Presc. AVL Off <.......> Value between 0 to +127
AM Presc. AVL Off <.......> Value between 0 to +127
NICAM Presc. AVL Off <.......> Value between 0 to +127
I2S Presc. AVL Off <.......> Value between 0 to +127
SCART Presc. AVL Off <.......> Value between 0 to +127
Dynamic Bass
If “Yes” selected, “Dynamic Bass” item is seen in “Sound” menu.
Subwoofer
If “Yes” selected, “Subwoofer” item is seen in “Sound” menu.
Options 1
VCTP Version
Basic+
Basic
Double Digit
If “Yes” selected, “Double Digit” button is active for channel selection.
TEA6415C Available
If “Yes” selected, video switch IC is active on hardware.
TEA642X Available
If “Yes” selected, audio switch IC is active on hardware.
Power-Up Mode
StandBy If selected, TV opens in stand by mode.
L.State If selected, TV opens in Last State mode.
TV Open Mode
Source
1st TV
Last TV
VCTP Version
Basic+
Basic
Double Digit
If “Yes” selected, “Double Digit” button is active for channel selection.
TEA6415C Available
If “Yes” selected, video switch IC is active on hardware.
TEA642X Available
If “Yes” selected, audio switch IC is active on hardware.
Power-Up Mode
StandBy If selected, TV opens in stand by mode.
L.State If selected, TV opens in Last State mode.
TV Open Mode
Source
1st TV
Last TV
Select Languages
“Yes”
selected languages are seen as option under the “Language” item in “Feature” menu
Language Set 1
German
Language Set 1
German
French
Spanish
Italian
Danish
Finnish
Swedish
Spanish
Italian
Danish
Finnish
Swedish
Language Set 2
Greek
Norwegian
Dutch
Portuguse
Polish
Turkish
Russian
Czech
Language Set 3
Hungarian
Slovak
Slovenian
Romanian
Bulgarian
Croatian
Serbian
Hebrew
Greek
Norwegian
Dutch
Portuguse
Polish
Turkish
Russian
Czech
Language Set 3
Hungarian
Slovak
Slovenian
Romanian
Bulgarian
Croatian
Serbian
Hebrew
First APS
If “Yes” selected, first time TV opens by asking APS.
APS Volume
If “Yes” selected, first time TV opens by asking APS.
APS Volume
value between 0 to+63
Burn In Mode
If “Yes” selected, TV opens with Burn-In mode. This mode is used in manufacturing.
HDMI WP
If “Yes” selected, HDMI EDID ROM is write protected.
Options 2
Autostore
If “Yes” selected, Channel is automatically stored.
Led Type
1 Led 1 Colour
1 Led 2 Colours
2 Led 2 Colours
PC PIP
PC Stand By
Burn In Mode
If “Yes” selected, TV opens with Burn-In mode. This mode is used in manufacturing.
HDMI WP
If “Yes” selected, HDMI EDID ROM is write protected.
Options 2
Autostore
If “Yes” selected, Channel is automatically stored.
Led Type
1 Led 1 Colour
1 Led 2 Colours
2 Led 2 Colours
PC PIP
PC Stand By
Service Scan/Tuning Setup
Search for L/L’
Pref. Search Standard
BG, DK, I
L/L’
M
Station Ident
ATS Delay Time (ms) Value between 20 to 250
Color Killer Threshold Value between 0 to +255
Tuner Options
Control Byte Value between 0 to +255
Low-Mid – Low Byte Value between 0 to +255
Low-Mid – High Byte Value between 0 to +255
Mid-High – Low Byte Value between 0 to +255
Mid-High – High Byte Value between 0 to +255
BSW1 Value between 0 to +255
BSW2 Value between 0 to +255
BSW3 Value between 0 to +255
Search for L/L’
Pref. Search Standard
BG, DK, I
L/L’
M
Station Ident
ATS Delay Time (ms) Value between 20 to 250
Color Killer Threshold Value between 0 to +255
Tuner Options
Control Byte Value between 0 to +255
Low-Mid – Low Byte Value between 0 to +255
Low-Mid – High Byte Value between 0 to +255
Mid-High – Low Byte Value between 0 to +255
Mid-High – High Byte Value between 0 to +255
BSW1 Value between 0 to +255
BSW2 Value between 0 to +255
BSW3 Value between 0 to +255
External Source Settings
DTV
DVD
Ext 2 S-Video
Ext 3
Ext 3 S-Video
FAV
BAV
S-Video
HDMI 1
HDMI 2
YPbPr
PC
DTV
DVD
Ext 2 S-Video
Ext 3
Ext 3 S-Video
FAV
BAV
S-Video
HDMI 1
HDMI 2
YPbPr
PC
Picture Mode
Sources
Tuner
CVBS
RGB
SVHS
HDMI
YPbPr
PC
PIP
Picture Mode
Dynamic
Sources
Tuner
CVBS
RGB
SVHS
HDMI
YPbPr
PC
PIP
Picture Mode
Dynamic
Natural
Cinema
Cinema
Colour Temp
Cool
Normal
Warm
Contrast <.......> Value between 0 to +63
Brightness <.......> Value between 0 to +63
Sharpness <.......> Value between 0 to +15
Colour <.......> Value between 0 to +63
Backlight <.......> Value between 0 to +255
R <.......> Value between -63 to +63
G <.......> Value between -63 to +63
B <.......> Value between -63 to +63
Reset TV-Set
Initialise NVM from ROM
Press green button to reset the NVM from RO
Cool
Normal
Warm
Contrast <.......> Value between 0 to +63
Brightness <.......> Value between 0 to +63
Sharpness <.......> Value between 0 to +15
Colour <.......> Value between 0 to +63
Backlight <.......> Value between 0 to +255
R <.......> Value between -63 to +63
G <.......> Value between -63 to +63
B <.......> Value between -63 to +63
Reset TV-Set
Initialise NVM from ROM
Press green button to reset the NVM from RO
POWER SUPPLY CIRCUIT
CLICK ON THE IMAGE TO ZOOM IN