Hitachi CP2896TA, Service Manual

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8
Service␣ mode␣ selection
1. Switch the TV set to stand-by mode.
2. Press
e
- (volume minus) button on local control unit
and at the same time start entering password: MENU,
TV and i with remote control. Release
e - button after
the MENU button is pressed. The record led will light
up to indicate that service mode is enabled.
3. Switch on the receiver by pressing the TV button twice
and select service mode by pressing the i button.
In service mode an adjustment menu is shown on the
screen.The adjustment number and name, initializing
(left) and adjustment (right) values are shown in the
menu.
4. Exit service mode by switching off the receiver with
the mains switch.
Configuration and fault diagnosis
The set must be configured after adding or removing
some options. By pressing the RED button in service
mode, the processor checks the configuration of the TV
set and shows the settings on the screen. The
configuration can be stored by pressing the OK button.
This feature can also be used in fault diagnosis. If an
option bit is not ’1’ when it should be, the IC (or feature)
is either not present or faulty.
Changing the option bytes
1. Select the configuration mode by pressing the RED
button in service mode.
SERVICE
IIC DEV 1 11111001
IIC DEV 2 00000110
IIC DEV 3 00010100
IIC DEV 4 00000001
IF OPT 00000001
TXT OPT 00000001
SYS OPT 1 00111111
SYS OPT 2 00000000
DSP OPT 00000000
UIF FLAGS 00110010
SW VER. MCABxx.x
NVM VER. MCA1-xx
SW VER. = µP software version.
NVM VER. = NVM software version.
2. Select IIC Device byte 1 - 4, Option byte 1 - 5 or uif
flags byte with cursor button (up-/downwards).
Selected byte is shown highlighted.
3. Set the bits with number buttons (0 ... 7).
4. Store the settings by pressing the OK button.
5. Return to normal service mode by pressing the RED
button.
7 6 5 4 3 2 1 0
Option byte description
Bit Description ‘1’ ‘0’
IIC DEV 1 11111001
0 TV tuner Yes No
1 IF Output, HEF4094 Yes No
3 Decoder synch. processor, TDA9143 Yes No
4 Deflection controller, TDA9151 Yes No
5 RGB processor, TDA4780 Yes No
6 IQTV processor Yes No
7 DPLL Yes No
IIC DEV 2 00000110
0 VGA Yes No
1 Main video switch, TDA6417 Yes No
2 Audio processor, MSP3410 Yes No
3 16:9 picture tube Yes No
4 Comb filter Yes No
5 PIP processor, S TDA9141 Yes No
6 PIP tuner Yes No
7 SCART 3 installed Yes No
IIC DEV 3 00010100
0 Virtual sound (3D Sound) Yes No
1 Dolby processor Yes No
2 SDA30C264 processor Yes No
3 Subwoofer Yes No
4 Megatext, SDA5273/75 Yes No
5 External text memory Yes No
6 Level 2.5 Megatext Yes No
7 One field memory (DB711 Module) Yes No
IIC DEV 4 00000001
0 Nicam enabled Yes No
1 Control lead (Xata) to AR7xx module Yes No
IF OPT 00000001
0 B/G system Yes No
1 I system Yes No
2 D/K system Yes No
3 L/L’ system Yes No
TXT OPT 00000001
0 Top enabled Yes No
1 Flof enabled Yes No
2 P26 disabled Yes No
3 Text sync mode Yes No
4 Automatic text subpage rolling Yes No
5 EPG (nexTView) enabled Yes No
6 EPG record enabled Yes No
SYS OPT 1 00111111
0 E0 (A/V connector) installed Yes No
1 E0 S-video Yes No
2 RGB enabled only in E1 Yes No
3 ACI enabled Yes No
4 Micro power supply installed Yes No
5 Carrier mute enabled Yes No
SYS OPT 2 00000100
0 Picture Tilt enabled Yes No
1 Autostart (Hotel TV) Yes No
2 Hitachi VCR remote enabled Yes No
7 Hotel TV functions enabled (manual) Yes No
UIF FLAGS 00110010
0-2 Logo bit
000 = no logo, go direct to APSi
001 = no logo, go to language menu
3 TV set not used before Yes No
4 Volume bar enabled Yes No
5 On screen programme number enabled Yes No
6 Front panel lock Yes No
7 Off timer active Yes No
SERVICE
00 V-AMPL. 38 36