PIONEER BE3110
Instrukcja Serwisowa

BE-3110

4.2 Adjusting the Clamp Voltage
1. Connect the digital voltmeter to TP1 of the RF ASSY as shown in Connection Diagram 1. 2. Adjust control VR9 (RV9) of the RF ASSY so that the voltage value on the digital voltmeter becomes within DC+2.7 to 2.9V.

Video SG

Video in TP1

BE-3110

Digital voltmeter

Fig. 4-2 Connection Diagram 1

4.3 Adjusting the Video Output
1. Connect the devices as shown by the dotted in Connection Diagram 2. 2. Set the devices as follows. ¶ Oscilloscope 0.1 V/div 5 µs/div H-SYNC TRG. ¶ Video SG All white signal (1 Vp-p/75�) 3. Adjust the oscilloscope using the VARIABLE level knob, etc. so that the p-p value of the signal is at the 6th mark on the oscilloscope screen. (Refer to the video adjustment waveform diagram in Fig. 4-4.) 4. Connect the devices as shown by the solid line in Connection Diagram 2. 5. Adjust control VR8 (RV8) of the RF ASSY so that the p-p value (within 0.97 to 1.03 Vp-p) set in step 3 is obtained.

Video SG

Video in

BE-3110

Video out

Oscilloscope

All white signal (1 Vp-p/75�)

Terminated at 75�

Fig. 4-3 Connection Diagram 2

1 Vp-p/75�

V: 5µs/div

Fig. 4-4 Video Adjustment Waveform Diagram

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