Toshiba 24W33B, Service Manual

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AK37 CHASSIS MANUAL ADJUSTMENT PROCEDURE
In order to enter service menu, first enter the main menu and then press the digits 4, 7, 2 and 5 respectively.
To select adjust parameters, use Ù or Ú buttons. To change the selected parameter, use < or > buttons.
Selected parameter will be highlighted.
Entire service menu parameters of AK37 CHASSIS are listed below. For some of parameters the default values are
given on the same table.
REGISTER PARAMETER NOTE
OSD OSD Horizontal Position ADJUST HORIZONTAL POSITION FOR OSD
IF1 IF Coarse Adjust
IF2IF Fine Adjust
IF3
IF Coarse Adjust for L-Prime
IF4 IF Fine Adjust for L-Prime
AGC Automatic Gain Control
VLIN Vertical Linearity ADJUST VERTICAL LINEARITY
VS1A Vertical Size for 50 Hz / 4:3 (AK30)
VS1B Vertical Size for 50 Hz / 16:9 (AK30)
VP1 Vertical Position for 50 Hz (AK30)
HP1 Horizontal Position for 50 Hz (AK30)
VS2A Vertical Size for 60 Hz / 4:3 (AK30)
VS2B Vertical Size for 60 Hz / 16:9 (AK30)
VP2Vertical Position for 60 Hz (AK30)
HP2Horizontal Position for 60 Hz (AK30)
RGBH
RGB Horizontal Shift Offset CVBS – RGB HORIZONTAL POSITION COMPENSATION
VSOF Vertical Size Offset for 60Hz (AK37) ADJUST AFTER SETTING ALL GEOMETRY VALUES IN 50 HZ
VPOF Vertical Position Offset for 60 Hz (AK37) ADJUST AFTER SETTING ALL GEOMETRY VALUES IN 50 HZ
HSOF Horizontal Size Offset for 60 Hz (AK37) ADJUST AFTER SETTING ALL GEOMETRY VALUES IN 50 HZ
HPOF Horizontal Position Offset for 60 Hz (AK37) ADJUST AFTER SETTING ALL GEOMETRY VALUES IN 50 HZ
HTOF Horizontal Trap Correction Offset for 60 Hz (AK37) ADJUST AFTER SETTING ALL GEOMETRY VALUES IN 50 HZ
WR White Point Adjust for RED
WG White Point Adjust for GREEN
WB White Point Adjust for BLUE
BR Bias for RED
BG Bias for GREEN
APR APR Threshold
FMP1 FM Prescaler when AVL is OFF STEREO ONLY
NIP1 NICAM Prescaler when AVL is OFF STEREO ONLY
SCP1 SCART Prescaler when AVL is OFF STEREO ONLY
FMP2FM Prescaler when AVL is ON STEREO ONLY
NIP2NICAM Prescaler when AVL is ON STEREO ONLY
SCP2 SCART Prescaler when AVL is ON STEREO ONLY
S1V SCART1 Volume STEREO ONLY
S2V SCART2 Volume STEREO ONLY
F1H High Byte of crossover frequency for VHF1-VHF3 MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
F1L Low Byte of crossover frequency for VHF1-VHF3 MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
F2H High Byte of crossover frequency for VHF3-UHF MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
F2L Low Byte of crossover frequency for VHF3-UHF MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
BS1 Band Switch Byte for VHF1 Meaningful for only MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
BS2Band Switch Byte for VHF3 Meaningful for only MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
BS3 Band Switch Byte for UHF Meaningful for only MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
CB Control Byte Meaningful for only PLL Tuner MEANINGFUL FOR ONLY PLL TUNER (see tuner setting table)
OP1 Option 1 (see the Option List) PERIPHERAL OPTIONS (see option table)
OP2Option 2 (see the Option List) RECEPTION STANDART OPTIONS (see option table)
OP3 Option 3 (see the Option List) VIDEO OPTIONS (see option table)
OP4 Option 4 (see the Option List) TV FEATURE OPTIONS (see option table)
OP5 Option 5 (see the Option List) CHANNEL TABLE OPTIONS (see option table)
TX1 Teletext Option 1 (see the Option List) TELETEXT OPTIONS (see option table)
GEOM Geometry Option (see the Option List) (AK37) GEOMETRY OPTIONS (see option table)