Panasonic TC-29G12P PAL SUB-COLOR Adjustment, Ntsc SUB-TINT Adjustment, Sub-Brigh Pre-Adjustment

Service Adjustments and Calibrations TC-20G12P / TC-29G12P / TC-29G12PU

REQUIRED EQUIPMENTS / CONNECTIONS: Oscilloscope bigger than 5MHz: Connect to TP2 or TP35.

PROCEDURE:

1.Position a jumper between TP38 and GND (COLD).

2.Apply a COLOURBAR pattern with 100IRE level.

3.Adjust the SUB-BRIGHT (DAC:B2) to that black level can’t be compressed.

4.Adjust the SUB-CONTRAST (DAC:B3) to obtain [A] between black level and white level on TP2 (E-board) or TP35 (Y-board).

White level (100 IRE)

TC-20G12P [A]=3,6±0,1Vp-p

TC-29G12P [A]=3,2±0,1Vp-p

TC-29G12PU [A]=3,2±0,1Vp-p

Black level

5. Remove the jumper on TP38

PAL SUB-COLOR ADJUSTMENT

REQUIRED EQUIPMENTS / CONNECTIONS: Oscilloscope: Connect to TP2 .

PREPARATION:
1.	Picture Menu	DYNAMIC
2.	CONTRAST	Max. or Normal
3.	BRIGHT	Center or Normal
4.	SHARPNESS	Center or Normal
5.	COLOR	Center or Normal

PROCEDURE:

1.Position a jumper between TP38 and GND (COLD)

2.Apply a COLORBAR pattern.

3.Check if the image is on DYNAMIC mode.

4.Adjust the SUB-BRIGHT (DAC: B2) to [A] of threshold level to the wave form doesn’t be compressed.

5.Adjust the SUB-COLOR (DAC: B0) to obtain [B] as showed below.

TC-20G12P [B]=3,2±0,05Vp-p

TC-29A12P [B]=2,7±0,05Vp-p

TC-29G12PU [B]=2,7±0,05Vp-p

[A]

NTSC SUB-TINT ADJUSTMENT

REQUIRED EQUIPMENTS / CONNECTIONS: Oscilloscope: Connect to TP1 (E-board) or (Y-board)

PREPARATION:
1.	BRIGHT	Center or Normal
2.	COLOR	Center or Normal
3.	TINT	Center or Normal
4.	CONTRAST	Max. or Normal
5.	COLOR SYSTEM	AUTO or NTSC

PROCEDURE:

1.Position a jumper between TP38 and GND (COLD)

2.Apply a Rainbow pattern.

3.Adjust the SUB-TINT (DAC: B1) to get, on TP1 or TP36 a waveform like showed below

4.On user mode, check that the TINT control move the phase TINT more than ±30°.

SUB-BRIGH PRE-ADJUSTMENT

PREPARATION:
1.	SYSTEM MODE	NTSC or Auto
2.	COLOR	Center or Normal
3.	CONTRAST	Max. or Normal
4.	BRIGHT	Center or Normal

PROCEDURE:

1.Apply a standard SUB-BRIGHT (DAC: B2) to the center of PART 6 and PART 7 became black.

(PART 7=Black and PART 6=Lightly Illuminated)

6. Remove the jumper on TP38

- 20 -