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3-9-5. PGM 1 Demodulation/Output Level
Adjustments
Preparation
1. Set S701-8 to ON on the DPR-263 board in HDFX100.
n
A 1-kHz sine wave is output from the test signal
generator in HDFX100.
HDFX100
DPR-263 board
S701
PGM 1 Demodulation Adjustment
2. Measuring equipment:
Oscilloscope
Input mode: DC
Test point:
TP207 (GND: E4)/TR-136 board
Adjusting point: 1LV207/TR-136 board
A = 0.00 ± 0.05 V dc
Specification:
3. Change the input mode of the oscilloscope to AC.
3-36
4. Measuring equipment:
Test point:
Adjusting point: 1LV208/TR-136 board
Specification:
5. Repeat steps 2 to 4 to meet the specifications A and B.
PGM 1 Output Level Adjustment
6. Measuring equipment:
Test point:
Adjusting point: 1RV203/TR-136 board
Specification:
7. Re-set S701-8 to OFF on the DPR-263 board in
HDFX100.
A
GND
A
B
TP605
S1
RV761
1
RV601
RV602
TP801
2
RV721
TP721
3
E1
TR-136 BOARD (SIDE A)
Oscilloscope
Input mode: AC
TP208 (GND: E4)/TR-136 board
B = minimum
Oscilloscope
Input mode: AC
TP208 (GND: E4)/TR-136 board
C = 200 ± 5 mV p-p
C
D
LV102
LV209
E2
RV102
TP604
LV207
LV103
RV103
LV203
LV105
RV801
LV205
RV105
TP401
TP106
E200
LV202
TP201
LV104
RV104
LV101
TP602
TP603
TP601
B
C
RV204
LV210
TP210
TP209
RV203
LV208
TP208
TP207
RV201
LV204
TP204
TP203
RV202
LV206
TP206
TP205
TP202
E4
HDC1000/V1(E)
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