Hue Adjustment (Ntsc Model); Burst Cleaning Adjustment (Pal Model) - Sony CCD-TRV32 Service Manual

20-8.

HUE adjustment (NTSC MODEL)

Purpose : Adjust for standard hue.
Adjustment Error : Unnatural hue.
Mode Playback
Signal Color bar signal (with chroma and
burst signals)
CN804 〈CN1804〉 pin 2 (VG)
Measurement point
Measuring equipment Oscilloscope
[External trigger : CN804 〈CN1804〉
pin 4 (HDB) 〈HSY〉]
Adjustment page F
Adjustment address DA
Type 3 : A=0.08 ± 0.05Vp-p
Specification
Type 4 : A=0.13 ± 0.05Vp-p
Cyan level with reference to yellow
Adjustment procedure:
Order Page Address
1 6 00
2 F DA
3
4 6 00
Note : To adjust the type 3, 4 machine, increase the data of page :
F, address : DD by 10h before starting adjustment. After
adjustment is completed, return the data to the original value.
(Remove the effect of gamma.)
20-9.

BURST CLEANING adjustment (PAL MODEL)

Purpose :
Adjust for standard hue.
Adjustment Error : Unnatural hue.
Mode Playback
Signal Color bar signal (with chroma and
burst signals)
CN804 〈CN1804〉 pin 3 (VB)
Measurement point
Measuring equipment Oscilloscope
[External trigger : CN804 〈CN1804〉
pin 4 (HDB) 〈HSY〉]
Adjustment page F
Adjustment address DA
Specification Minimum amplitude of the flicker of
the red position.
Adjustment procedure:
Order Page Address
1 6 00
2 F DA
3
4 6 00
Data
01 After setting the data, press the PAUSE button. (Preparation)
Change data using the PLAY and STOP buttons until the amplitude (A) has the specified
value.
Press the PAUSE button.
00 After setting the data, press the PAUSE button. (End)
Data
01 After setting the data, press the PAUSE button. (Preparation)
Change data using the PLAY and STOP buttons until the amplitude (A) has the specified
value.
Press the PAUSE button.
00 After setting the data, press the PAUSE button. (End)
Note 1 : Set the BRIGHT control volume to their mechanical
center during adjustment.
Procedure
LCD size
Type 1
2.5 inch (PAL only)
Type 2
Type 3
3.0 inch (NTSC)
Type 4
3.5 inch (NTSC/PAL)
No mark : Type 1, Type 4
〈 〉 : Type 2, Type 3
Note 1 : Perform this adjustment before COLOR adjustment.
Note 2 : Set the BRIGHT control volume to their mechanical
center during adjustment.
Procedure
6-40
Yellow
Cyan
A
Standard
level
2H
LCD board
PD-74/SD-24
PD-75/SD-25
PD-77
PD-76
Red
(A)
(A)