Internal Time Code Output Waveform Check; Internal Time Code Output Check; Arrangement Diagram For Adjustment Parts - Sony DSR-50P Service Manual

3. Internal Time Code Output Waveform Check

Mode PLAY
Signal Time code recorded tape
TC OUT (INT) terminal (600 Ω
Measurement point
load)
Measuring instrument Oscilloscope
Specified value A = 2.0 to 3.0 Vp-p (NTSC/PAL)
T1 = 20 to 30 µsec (NTSC)
T1 = 40 to 65 µsec (PAL)
T2 = 20 to 30 µsec (NTSC)
T2 = 40 to 65 µsec (PAL)
Connection of equipment
TC OUT (INT)
DSR-50/
Oscilloscope
50P
600 Ω
600 Ω: 270 (1-249-410-11) +330 (1-249-411-11)
Checking method:
1) Check that the TC output signal level (A) satisfies the specified
value.
2) Check that the TC output signal rising time (T1) satisfies the
specified value.
3) Check that the TC output signal falling time (T2) satisfies the
specified value.
90%
90%
A
10%
T1 T2
Fig. 5-3-55

4. Internal Time Code Output Check

Mode PLAY
Signal Time code recorded tape
Measurement point Counter value of timer code reader
Measuring instrument
Specified value The counter value on the front panel
must be same as the value indicated
on the time code reader.
Switch setting
Set the counter switch on the front panel to "TC".
Connection of equipment
TC OUT (INT)
DSR-50/
50P
Time code reader
1H 09M 40S
Checking method:
1) Connect the time code reader (such as BVG-1500) to the TC
OUT (INT) terminal.
2) Check that the counter value on the front panel is same as the
value indicated on the time code reader.
10%
5-97
3-8.

ARRANGEMENT DIAGRAM FOR ADJUSTMENT PARTS

JC-20 BOARD (SIDE A)
JC-20 BOARD (SIDE B)
16 9
CL1157
17 8
CL2217
IC1108
CL1122
48
24 1 49
25 32
CL1124 IC2204
64
1
CL1169
CL1170
IC1104 IC1103
CL2214
IC1102
CL1162
CL1145
CL1160 CL1161
IC1105
RV1103
CN1101
RV1102
CT2200
RV1104
RV2201
RV1101
RV1100
CT3300
Q1116
E B
IC3302 IC1101
C
33
32
17
16
CL3305
5-98 E