5-37
6. APC & AEQ Adjustment (MR-40 board)
Mode Camera record and playback
Subject Arbitrary
Measurement Point Pin @º of CN2904 (RF MON) on VC-
210 board (Note 1)
Measuring Instrument Oscilloscope
Adjustment Page C
Adjustment Address 18, 19, 1B, 1C, 21, 73
Specified Value The display data of page: 3, address:
03 is “00”
Note 1: Connect a 75 Ω resistor between Pin @º and Pin !ª (GND) of
CN2904.
75 Ω resistor (Parts code: 1-247-804-11)
Note 2: The “5. AGC Center Level Adjustment” must have already been
completed before starting this adjustment.
Adjusting Method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 2, address: 30, and set data: 40.
3) Record the camera signal for a minute.
4) Playback the recorded segment.
5) Select page: 3, address: 33, and set data: 08.
6) Check that the playback RF signal is stable.
7) Select page: 3, address: 01, set data: 07, and press the PAUSE
button of the adjustment remote commander.
8) Check that the data of page: 3, address: 02 changes from “07”
to “00” in about 15 seconds after pressing the PAUSE button.
9) Select page: 3, address: 03, and check that the data is “00”.
Note: If data of page: 3, address: 03 is other than “00”, adjustment
has errors. (Take an appropriate remedial measures according
to the errors referring to the following table.)
10) Select page: 3, address: 33, and set data: 00.
11) Select page: 2, address: 30, and set data: 00.
12) Select page: 0, address: 01, and set data: 00.
Note 3: If this data is displayed twice successively, the machine is defective.
7. PLL f0 & LPF f0 Final Adjustment (MR-40 board)
Mode VTR playback
Signal Arbitrary
Measurement Point Display data of page: 3, address: 03
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 1F, 20, 22, 47
Specified Value 00
Adjusting Method:
1) Select page: 0, address: 01, and set data: 01.
2) Select page: 3, address: 01, set data: 30, and press the PAUSE
button of the adjustment remote commander.
3) Select page: 3, address: 02, and check that the data changes to
"00".
4) Select page: 3, address: 03, and check that the data is “00”.
Note: If the data of page: 3, address: 03 is other than "00", there are
errors. (For the error contents, see the following table. For the
bit values, refer to “5-4. SERVICE MODE”, “4-3. 3. Bit value
discrimination”.
5) Select page: 0, address: 01, and set data: 00.
Data of page: 3,
address: 03
20
30
50
60
80
Remedial measures
Perform re-adjustment. (Note 3)
The machine is defective
Perform re-adjustment. (Note 3)
The machine is defective
The machine is defective
Bit value of page: 3,
address: 03
bit 4 = 1
bit 5 = 1
bit 6 = 1
bit 3 = 1
Error contents
PLL f0, even channel is defective
PLL f0, odd channel is defective
LPF f0 is defective
PLL f0 final adjustment is defective
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