SONY BKV-100
Instrukcja Serwisowa

2-1. Free-run Frequency Adjustment 2-2. Overlay Output Level Adjustment

2-1. Free-run Frequency Adjustment
Adjustment 1. Set S1(A-6) on the VPR-36 board to ON. 2. Set the oscilloscope as follows. CH2 : 1.0 V/DIV AC TIME : 20 ns/DIV TRIG : CH2 3. Connect the frequency counter to CH2 OUT of the oscilloscope. 4. Connect CH2 probe of the oscilloscope to TP1(A-5) on the VPR-36 board. Connect GND of the probe to E1(A-2) on the VPR-36 board. 5. Adjust the frequency to meet the specification by turning RV1(A-6) on the VPR-36 board. Measuring : TP1(A-5)/VPR-36 Adjustment : 1RV1(A-6)/VPR-36 Specification : 26.3 ± 0.1 MHz 6. After adjustment is completed, set S1(A-6) on the VPR-36 board to OFF.

2-2. Overlay Output Level Adjustment
Adjustment 1. Reset the brightness, contrast, and saturation in the �BKV-100 Overlay Setup� dialog box in the �BKV100 Setup Utility� window. (Refer to Section 6-4 of Installation Manual.) 2. Set the oscilloscope as follows. CH2 : 0.1 V/DIV TIME : 10 us/DIV TRIG : CH2 3. Connect CH2 probe of the oscilloscope to TP5(A-3) on the VPR-36 board. Connect GND of the probe to E1(A-2) on the VPR-36 board. 4. Adjust the ramp signal level to meet the specification by turning RV2(B-3) on the VPR-36 board. (Fig.1) R output level Measuring : TP5(A-3)/VPR-36 Adjustment : 1RV2(B-3)/VPR-36 Specification : 700 ± 35 mV p-p 5. Connect CH2 probe of the oscilloscope to TP6(A-2) on the VPR-36 board. Connect GND of the probe to E1(A-2) on the VPR-36 board. 6. Adjust the ramp signal level to meet the specification by turning RV3(B-2) on the VPR-36 board. (Fig.1) B output level Measuring : TP6(A-2)/VPR-36 Adjustment : 1RV3(B-2)/VPR-36 Specification : 700 ± 35 mV p-p 7. Connect CH2 probe of the oscilloscope to TP7(A-1) on the VPR-36 board. Connect GND of the probe to E1(A-2) on the VPR-36 board. 8. Adjust the ramp signal level to meet the specification by turning RV4(B-1) on the VPR-36 board. (Fig.1) G output level Measuring : TP7(A-1)/VPR-36 Adjustment : 1RV4(B-1)/VPR-36 Specification : 700 ± 35 mV p-p
A RV1 S1 TP1

J 6 5 4 3 2 1

H

G

F

E

D

C

B

A

A = 700 ± 35 mV p-p
E1
Fig.1 Oscilloscope

RV2 RV3 RV4
VPR-36 board (A side)

TP5 TP6 TP7

2-2(E)

BKV-100