Prompter Adjustment - Sony HDC1000 Maintenance Manual

3-8-7. MX-109 Prompter Adjustment
Perform this adjustment to the following serial numbers.
. Serial No. 11001 and Higher: HDC1550 (UC)
. Serial No. 410001 and Higher: HDC1550 (CE)
Prompter Frequency Adjustment
1. Measuring equipment:
Waveform monitor
Test point: HDC1550 PROMPTER connector
HDFX setting: S1: "1"
TRIAX cable: 400 m
Adjusting point: 1LV302 (PROMPT TUNE)/
MX-109 board
Specification: A waveform shall appear.
1.5 MHz
2. Measuring equipment:
Waveform monitor
Test point: HDC1550 PROMPTER connector
HDFX setting: S1: "1"
TRIAX cable: 400 m
Adjusting point: 1LV301 (PROMPT FREQ)/
MX-109 board
Specification: A waveform shall be maximized.
B
A C
LV301
E1
LV201
1
TP201
RV301
LV302
TP301
RV201
E3
RV302
TP203
2
TP302
TP202
E4
MX-109 BOARD (SIDE A)
HDC1000/V1(E)
D
E
TP101
LV101
3. Measuring equipment:
Waveform monitor
Test point: HDC1550 PROMPTER connector
HDFX setting: S1: "1"
TRIAX cable: 400 m
Adjusting point: 1LV302 (PROMPT TUNE)/
MX-109 board
Specifications: The back porch shall be flat.
If this specification is not met,
perform "Prompter AGC Adjust-
ment (See step 5)," and then per-
form this adjustment.
A
Flat
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