SHARP 29BFX1
Instrukcja Serwisowa

PAL SECAM CHROMA ADJUSTMENT

No. point Adjusting procedure/conditions Waveform and others

SUB COLOUR E-10CH "PAL Color Bar" 1 SECAM 1. Receive "SECAM colour bar" signal.

2

BLACK LEVEL Select SECAM black level adjustment R-Y mode. I C BUS 2. Make pictur normal with the remote control2

ler. R-Y/B-Y 3. Connect the oscilloscope to pin(20) of ADJUSTMENT (RF Signal) 3. Connect the oscilloscope to TP802...(ky) 4pin. I C BUS ADIC800(TP802/R out).

75% Y 100% W Mg R

(Using 10:1 Probe) JUSTMENT » Range : 10mV/Div. (AC)(Use Probe 10:1) Range 2 V/Div » Sweep time : 20 µsec/Div.

OFF SET Sweep Time : 20 µ sec/Div 4. Vary R-Y data to minimize offset between the non-signal and signal line as shown in Fig.104. Set the sub-colour "SUB-COL" adjustment mode

with remote controller, and vary the sub col1(b) Fig. 10-1(a) our data to make 75% W of the PAL colour bar 5. Select SECAM black level adjustment B-Y mode. Cy G B and RED at same level for adjustment shown 6. Reconnect the oscilloscope to TP801...(KY) 6pin Fig. 8-1 in Fig.8-1. » Range : 10mV/Div. (AC)(Use Probe 10:1)

» Sweep time : 20 µsec/Div. 7. Vary B-Y data to minimize offset between the 100% W R 2 SUB COLOUR 1. Receive DVD signal. (Half Colour Bar Signal)
W Y DVD) ler.

Mg

2(b)

non-signal and signal line as shown in Fig.10(SUB COL 2. Make pictur normal with the remote control-

2

I C BUS 3. Connect the oscilloscope to TP802...(ky) 4pin.

ADJUSTMENT (Using 10:1 Probe) Fig. 10-1(b) (DVD Signal) Range : 2 V/Div Cy G R B Fig. 8-2

Sweep Time : 20 µ sec/Div

4. Set the sub-colour "SUB-COL DVD" adjustment

mode with remote controller, and vary the sub data to make 100% W of the PAL colour bar and RED at the same level for adjustment shown in Fig.8-2.

(Use colour bar pattern of the signal generator for adjustment)

OFF SET Fig. 10-2(a)

13
A W Y Cy G Mg R B Blk 3. Vary sub tint data adjust the waveform to

NTSC CHROMA ADJUSTMENT

No. point Adjusting procedure/conditions Waveform and others

1 SUB-TINT 1. Select the sub-tint adjustment mode (automatic

2

(SUB-TINT) I C Y cut) to receive the "NTSC Colour Bar" signal

BUS ADJUSTwith AV input. MENT (RF 2. Connect the oscilloscope to TP801 Fig. 10-2(b) B SIGNAL) » Range : 50mV/Div. (AC)(Use Probe 10:1) C

» Sweep time : 10 µsec/Div.

be gained as shown in Fig.9-1. Fig. 9-1 TP801......(KY) 6pin

2 SUB-TINT 1. Select the "SUB TINT DVD" adjustment mode (auC

(SUB-TINT tomatic Y cut) to receive the DVD colour bar sigA DVD) I C BUS nal. 2 B

ADJUSTMENT 2. Connect the oscilloscope to TP801 (DVD SIGNAL) » Range : 50mV/Div. (AC)(Use Probe 10:1)

» Sweep time : 10 µsec/Div.

W Y Cy G Mg R B Blk

3. Vary sub tint data adjust the waveform to Fig. 9-2

be gained as shown in Fig.9-2.

4. Release/off the adjustment mode.

TP801......(KY) 6pin

(Use colour bar pattern of the signal generator for adjustment.)

29B-FX1

13-1 13-2