Incom1 Deviation Adjustment; Pgm1 Deviation Adjustment - Sony CCU-590 Maintenance Manual

4-6-2. INCOM1 Deviation Adjustment

Adjustment category: C
Measuring instruments: Spectrum analyzer, Oscillo-
scope, Audio generator
Extended board:
TR-133B board
Preparation:
1. Input 1 kHz sine wave signal from the audio generator
to the pins 1 (Y), 2 (X) and 3 (GND) on the INCOM
connector (XLR pin 5)/CCU front panel.
. Fig.1 (Refer to "4-1-4. Audio Connection".)
2. Adjust audio generator output level so that the signal
level at C642 on the TR-133B board becomes 200 mV
p-p.
3. Connect the spectrum analyzer probe to the measure-
ment point.
Measurement point: TP41 (GND: E100)/TR-133B
board
Adjustment point: 1RV41 (INCOM 1 DEV)/TR-
133B board
A = B = 6.0 ± 0.4 kHz
Specification:
A B
Waveform image
CENT FREQ : 3.6 MHz
FREQ SPAN : 20 MHz
B
A
1
TP701
TP901
E701
S1
TP1
LV1
2
E101
TP21
LV21
RV41
LV41
TP41
3
LV101
RV101
E100
TP101
E102
4
CCU-590/P/V1(E)
C D
E801
RV901 LV901
TP801
LV902
RV902
RV701
TP201
LV201
LV601 LV602
LV402
LV401
LV301
LV302
TP301
TR-133B BOARD (SIDE A)

4-6-3. PGM1 Deviation Adjustment

Adjustment category:
Measuring instruments: Spectrum analyzer, Oscillo-
Extended board:
Preparation:
1. Input 1 kHz sine wave signal from the audio generator
to the pins 6 (PGM-1 (X)), 7 (PGM-1 (Y)) and 8
(PGM-1 (G)) on the INTERCOM/TALLY/PGM
connector (Dsub pin 25) of CCU rear panel.
. Fig.1 (Refer to "4-1-4. Audio Connection".)
2. Adjust audio generator output level so that the signal
level at C442 on the TR-133B board becomes 200 mV
p-p.
3. Connect the spectrum analyzer probe to the measure-
ment point.
Measurement point:
Adjustment point:
Specification:
A B
Waveform image
CENT FREQ : 4.3 MHz
FREQ SPAN : 20 MHz
E F
RV801
RV201
TP202
RV601
RV401
TP402
TP401
RV301
E300
S363
TP302
C
scope, Audio generator
TR-133B board
TP101 (GND: E100)/TR-133B
board
1RV101 (PGM DEV)/TR-
133B board
A = B = 7.0 ± 0.4 kHz
G
E1
CN902
S2
4-25