Sony CA-755 Maintenance Manual page 38

2-4. TR-101 Board Adjustment
2-4-5. MIC 1 Level Adjustment
2-4-6. MIC 2 Level Adjustment
2-4-5. MIC 1 Level Adjustment
Preparations :
. Connect the CA-755/755P to a completely-adjusted CCU.
. Supply an 1 kHz, 2.2 mV p-p (_60 dBu) sine wave from
the low frequency oscillator to the AUDIO IN CH-1 on
the camcoder.
. LINE/MIC switch (Camcoder) → MIC
. AUDIO IN switch (Camcoder) → REAR
. AUDIO SELECT switch (Camcoder) → AUTO
Equipment : Audio analyzer
Low frequency oscillator
Test point : MIC 1 OUT connector (CCU)
Adjustment point : 1RV1 (MIC 1 DEV)/TR-101 board
: 0 ± 0.2 dBm (600Z)
Specifications
2-12 (E)
2-4-6. MIC 2 Level Adjustment
Preparations :
. Connect the CA-755/755P to a completely-adjusted CCU.
. Supply an 1 kHz, 2.2 mV p-p (_60 dBu) sine wave from
the low frequency oscillator to the AUDIO IN CH-2 on
the camcoder.
. LINE/MIC switch (Camcoder) → MIC
. AUDIO IN switch (Camcoder) → REAR
. AUDIO SELECT switch (Camcoder) → AUTO
Equipment : Audio analyzer
Low frequency oscillator
Test point : MIC 2 OUT connector (CCU)
Adjustment point : 1RV12 (MIC 2 DEV)/TR-101 board
: 0 ± 0.2 dBm (600Z)
Specifications
9 8 7 6
A
TP6
TP7
B
RV11
C
RV14
D
TP10
RV16
TP15
E
E2
TP14
F
RV15
TP11 LV6
G
TP12
H
LV8
TP8
LV7
J
RV5
TP4
K
LV4
RV4
L
LV3 TP1
M
RV2
RV12
N
TR-101 BOARD (A SIDE)
5 4 3 2 1
RV6
RV9
RV8 RV3
TP13
CN1
TP9
TP16
LV5
E1
TP2
TP5
LV1
TP3
LV2
RV1
CA-755/755P