5-42
DCR-TRV240/TRV340
3-3. SERVO AND RF SYSTEM ADJUSTMENT
Before perform the servo and RF system adjustments, check that
the specified value of “27 MHz Origin Oscillation Adjustment” of
“VIDEO 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. REEL FG adjustment
2. PLL f0 & LPF f0 adjustment
3. Switching position adjustment
4. AGC center level and APC & AEQ adjustment
5. PLL f0 & LPF f0 fine adjustment
6. Hi8/Standrd8 switching position adjustment
7. Cap FG duty adjustment
1. REEL FG Adjustment (VC-276 board)
Compensates the dispersion of the hall elements.
Measurement Point Display data of page: 3, address: 03
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 17, 2F
Specified Value 00 or 01 or 04 or 05
Note: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page
Address
Data Procedure
1 Close the cassette compartment
without inserting a cassette.
2 0 01 01 Set the data.
3 3 01 1C Set the data, and press PAUSE
button.
4 3 02 Check that the data changes to
“00”,
5 3 03 Check that the data is “00” or “01”
or “04” or “05”. (Note)
6 0 01 00 Set the data.
Note: If the data is other value, adjustment has errors. (Take an appropriate
remedial measures according to the errors referring to the following
table.)
Data Contents of defect
02, 03, 06, 07 T reel is defective
08, 09, 0C, 0D S reel is defective
0A, 0B, 0E, 0F S reel and T reel are defective
2. PLL f
0 & LPF f0 Adjustment (VC-276 board)
Mode VTR stop
Measurement Point Display data of page: 3, address: 02, 03
Measuring Instrument Adjustment remote commander
Adjustment Page C
Adjustment Address 1F, 20, 22, 29
Specified Value Data of page: 3, address: 02 is “00”.
Data of page: 3, address: 03 is “00”.
Note1: The data of page: 0, address: 10 must be “00”.
Adjusting method:
Order Page
Address
Data Procedure
1 0 01 01 Set the data.
2 C 21 CA Set the data, and press PAUSE
button.
3 3 01 00 Set the data, and press PAUSE
button.
4 3 01 30 Set the data, and press PAUSE
button.
5 3 02 Check that the data changes to
“00” with in 10 sec. (Note2)
6 3 03 Check that the data is “00”.
(Note2)
7 0 01 00 Set the data.
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 6.
Setting data
When the data of page: C, address: 21 is “CA”.CE
When the data of page: C, address: 21 is “CE”.C6
When the data of page: C, address: 21 is “C6”.D2
When the data of page: C, address: 21 is “D2” C2
RadarWRadarWRadarW
RadarWRadarWRadarW
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 “5-4. SERVICE MODE”, “4-3. 3. Bit
value discrimination”.)
Bit value of page: 3, Error contents
address: 03 data
bit 2 = 1 or bit 3 = 1 PLL f0 fine adjustment is defective
bit 4 = 1 or bit 5 = 1 PLL f0 adjustment is defective
bit 6 = 1 LPF f0 adjustment is defective
To Next Page