Table of Contents
Advertisement
4-7. RETURN VIDEO Cable
Compensation System Adjustment
4-7-1. RETURN VIDEO Carrier Frequency
Adjustment
Adjustment category:
C
Note:
Section 4-5-14. RETURN VIDEO Level Adjustment must
have already been finished.
Measuring instruments: Spectrum analyzer, Video
signal generator (10 STEP
signal)
Extended board:
TR-133B board
Preparation:
. Input 1.0 V p-p linearity signal (10 STEP) to the RET-1
input terminal on the CCU rear panel.
. Press the RET-1 switch on the CA-590/590P rear panel.
Measurement point:
TP701 (GND: E701)/TR-133B
board
Adjustment point:
1CT701 (RET FREQ)/TR-
133B board
69.000 ± 0.005 MHz
Specification:
SYNC tip
69.0
MHz
B
A
1
TP701
TP901
E701
CT701
S1
TP1
LV1
2
TP21
E101
LV21
RV41
LV41
TP41
3
LV101
RV101
TP101
E102
4
4-32
C
D
RV901
LV901
TP801
E801
LV902
RV902
RV701
TP201
LV201
LV601
LV602
LV401
LV402
LV301
LV302
TR-133B BOARD (SIDE A)
4-7-2. RETURN VIDEO Deviation Adjustment
Adjustment category:
Measuring instruments: Spectrum analyzer, Video
Extended board:
Preparation:
. Input 1.0 V p-p linearity signal (10 STEP) to the RET-1
input terminal on the CCU rear panel.
. Press the RET-1 switch on the CA-590/590P rear panel.
Measurement point:
Adjustment point:
Specification:
SYNC tip
White 100 %
T = 2.0 MHz
69.0
MHz
Perform the adjustments of 4-7-1 and 4-7-2 repeatedly to
meet the respective specifications.
E
F
RV801
RV201
TP202
RV601
RV401
TP402
TP401
RV301
E300
TP302
S363
TP301
C
signal generator (10 STEP
signal)
TR-133B board
TP701 (GND: E701)/TR-133B
board
1RV701 (RET DEV)/TR-133B
board
T = 2.000 ± 0.005 MHz
71.0
MHz
G
E1
CN902
S2
CCU-590/P/V1(E)
Hide quick links:
Advertisement
Table of Contents
