Sony DVCAM DSR-PDX10 Service Manual page 235

DSR-PDX10/PDX10P
3-3. SERVO AND RF SYSTEM ADJUSTMENT
Before perform the servo and RF system adjustments, check that
the specified value of "66MHz/54MHz Origin Oscillation
Adjustment" of "CAMERA SYSTEM ADJUSTMENT" is satisfied.
And check that the data of page: 0, address: 10 is "00". If not, set
data: 00 to this address.
Adjusting Procedure:
1. CAP FG duty adjustment
2. PLL f & LPF f pre-adjustment
0 0
3. Switching position adjustment
4. AGC center level and APC & AEQ adjustment
5. PLL f & LPF f fine adjustment
0 0
1. Cap FG Duty Adjustment (VC-318 Board)
Set the Cap FG signal duty cycle to 50% to establish an appropriate
capstan servo. If deviated, the uneven rotation of capstan and noise
can occur.
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note1: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1
2 0 01
3 3 01
4 3 02
5 3 03
6 0 01
Note2: If the data is "01", adjustment has errors or the mechanism deck is
defective.
Display data of page: 3, address: 02, 03
Adjustment remote commander
C
16
Data of page: 3, address: 02 is "00".
Data of page: 3, address: 03 is "00".
Procedure
Close the cassette compartment
without inserting a cassette.
01 Set the data.
1B Set the data, and press PAUSE
button.
Check that the data changes in
the following order.
"1B" t "2B" t "00"
Check that the data is "00".
(Note2)
00 Set the data.
2. PLL f & LPF f Pre-Adjustment (VC-318 Board)
0 0
Mode
Measurement Point
Measuring Instrument
Adjustment Page
Adjustment Address
Specified Value
Note1: The data of page: 0, address: 10 must be "00".
Adjusting method:
Order Page Address Data
1 0 01
2 C 21
3 3 01
4 3 02
5 3 03
6 0 01
Note2: If it isn't satisfied, select page: C, address: 21, set the following
data, and press the PAUSE button, and repeat steps 3 to 5.
When the data of page: C, address: 21 is "DC".
When the data of page: C, address: 21 is "E0".
When the data of page: C, address: 21 is "D8".
When the data of page: C, address: 21 is "E4"
There are errors when it isn't satisfied even if the above treatment
is done.
If bit2, bit3, bit4, bit5 or bit 6 of the data of page: 3, address: 03 is
"1", there are errors. For the error contents, see the following table.
(For the bit values, refer to "6-4. SERVICE MODE", "4-3. 3. Bit
value discrimination".)
Bit value of page: 3,
address: 03 data
bit 2 = 1 or bit 3 = 1
bit 4 = 1 or bit 5 = 1
bit 6 = 1
6-80
VTR stop
Display data of page: 3, address: 02, 03
Adjustment remote commander
C
1F, 20, 22, 29
Data of page: 3, address: 02 is "00".
Data of page: 3, address: 03 is "00".
Procedure
01 Set the data.
DC Set the data, and press PAUSE
button.
30 Set the data, and press PAUSE
button.
Check that the data changes to
"00" with in 5 sec. (Note2)
Check that the data is "00".
(Note2)
00 Set the data.
Setting data
Error contents
PLL f fine adjustment is defective
0
PLL f adjustment is defective
0
LPF f adjustment is defective
0
E0
D8
E4
D4