Service manual

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KLV-26/32/40/46V300A
RM-GA008
3-2-2. Y signal calibration 1 adjustment for
terrestrial analog
1. Input color bar via terrestrial analog
2. Send ECS command: ADJUST_TCD3_CONT_RF. Wait success
receive data.
3. Read value of S-REG_APL_LUMA via ECS. Then confirm that
the value is within the range of below table.
4. Read value of S-REG_TCD3_CONTRAST via ECS.
Note :
Y signal calibration adjustment target of terrestrial analog input.
3-2-3. C signal of terrestrial analog Input/HUE
calibration 1 adjustment
1. Send command: ADJUST_TCD3_HUE_RF from ECS. Wait
success receive data.
2. Read S-REG_AVE_VAL_B_AREA0 via ECS
(READ_AREA = 0)
3. Read S-REG_AVE_VAL_B_AREA6 via ECS
(READ_AREA = 6)
4. Confirm that 8 bits of MSB of 2) and 3) are in the range of below
table.
5. Read S-REG: TCD3_SATURATION via ECS.
6. Restore the original value SREG_NR = 4 (high)
7. Send ECS command: ADJUST_LEVEL_SETTING_CLR blue
level only.
As for READ_AREA number and position.
Note:
If it is adjusted other signal (other color system), it needs restoring the
value for changed SREGS and sending the ADJUST_LEVEL_
SETTING_CLR before signal changing.
3-2-4. Step before AD calibration-1 adjustment of
video Input
1. Send ECS command: ADJUST_LEVEL_SETTING_INIT. Wait
success recieve data
2. Set SREG_NR=1 (low), hreg_P4_cvd2_85 [2:0] = 0
SREG_ADJ_COLOR_PAL = 4 (for GA)
3. Set up correspond value to following resistors
SREG_TARGET_Y_V
[For AEP, GA (Video-PAL)]
SREG_TCD3_CONT_PAL_V
SREG_TCD3_SAT_PAL_V
SREG_TCD3_HUE_PAL_V
3-2-5. Y signal calibration-1 adjustment of video
input. (PAL for AEP, GA)
1. Input 75% color bar signal via Video1 input.
2. Send ECS command: ADJUST_TCD3_CONT_V. Wait success
receive data.
3. Read value of S-REG: APL_LUMA via ECS and confirm that
the values are in corresponding range of below table.
4. Read value of S-REG: TCD3_CONTRAST via ECS. Set offset
of V input for S input setting by u-com internal.
Note: When both S video and video (CVBS) are connected, select
video (CVBS) by setting SREG_S_INPUT <0> = 0
Change back this data after adjustment
Note for Input signal
[GA model] (PAL, NTSC)
Included black and white, 75% Y and 75% C, without set up.
3-2-6. C signal of video Input/HUE calibration 1
adjustment (PAL for AEP, GA)
1. Input 75% color bar signal via video1 input.
2. Send command: ECS_ADJUST_TCD3_HUE_V via ECS. Wait
success receive data
3. Read S-REG_AVE_VAL_B_AREA0 via ECS
4. Read S-REG_AVE_VAL_B_AREA6 via ECS
5. Confirm that 8 bits of MSB of 3) and 4) are in the range of below
table
6. Read S-REG_AVE_VAL_B_AREA2 via ECS (GA-NTSC)
7. Read S-REG_AVE_VAL_B_AREA4 via ECS
8. Confirm that 8 bits of MSB of 6) and 7) are in the range of below
table (GA-NTSC)
9. Read S-REG_TCD3_SATURATION via ECS
10. Read S-REG_TCD3_HUE via ECS. (GA-NTSC)
As for READ_AREA number and position
AD-AdjustRF Spec. Spec.
Reference register name
SREG_TARGET
_Y_RF±2
S-REG_APL_LUMA
Reference item Specification
±2
SREG_AVE_VAL_B
_AREA* difference
01234567
AD-AdjustVideo Spec. Spec.
Reference register name
S-REG_APL_LUMA
SREG_TARGET
_Y_V±2
Reference item Specification
±2
SREG_AVE_VAL_B
_AREA* difference
Reference item Specification
±2
SREG_AVE_VAL_B
_AREA* difference
01234567