55
CDR-830
6.7 SERVO ADJUSTMENT
6.7.1 Preparations
1. Enter the TEST mode.
2. Press the INPUT SELECTOR key so that "OPTICAL" appears on the FL display.
3. Press the ERASE key more than three seconds to initialize it.
4. Press the SYNCHRO key to perform the average process.
\
"OPTICAL" disappears on the FL display when completed.
MANUAL ADJUSTMENT
[Procedure]
1. Monitor the FOCUS ERROR waveform with VC.
2. Adjust the JOG key so that FE offset becomes zero.
3. Press the ENTER key to register the adjustment.
6.7.2 Focus Offset Adjustment
0 mV
±
30 mV
Optimizing DC offset voltage of focus-error amplifier.
Focus-in does not function, or bad RF wave shape.
CN102-pin 8 (Focus err)
Test Point
Adjustment Value
Purpose
Symptom when Out of Adjustment
Adjustment method
FL Indication
CN102
FE
VC
8
6
10: 1 prove
Oscilloscope
[Procedure]
1. Press the AUTO/MANUAL key and shift to the SRFO Offset Adjustment.
2. Monitor the RFDC waveform with VC.
2. Adjust the JOG key so that RFDC offset becomes zero.
3. Press the ENTER key to register the adjustment.
6.7.3 SRFO Offset Adjustment
0 mV
±
30 mV
CN102-pin 2 (RF)
Test Point
Adjustment Value
Optimizing DC offset voltage of RFDC output circuit when recording.
Recording does not function.
Purpose
Symptom when Out of Adjustment
Adjustment method
FL Indication
CN102
RF
VC
2
6
10: 1 prove
Oscilloscope
Summary of Contents for BurnIT CDR-830
Page 45: ...CDR 830 45 A B C D 5 6 7 8 5 6 7 8 G IC701 IC702 IC706 CN601 D SIDE A SIDE B...
Page 71: ...71 CDR 830 Pin Function 2 5...
Page 72: ...72 CDR 830 Pin Function 3 5...
Page 73: ...73 CDR 830 Pin Function 4 5...
Page 74: ...74 CDR 830 Pin Function 5 5...
Page 78: ...78 CDR 830 AK8567 CD R CORE PCB ASSY IC101 RF Processor Pin Function 1 2...
Page 79: ...79 CDR 830 Pin Function 2 2...
Page 82: ...82 CDR 830 1 FL TUBE Grid Assignment Pin Connection PEL1101 OPERATING ASSY V701 7 2 2 DISPLAY...
Page 83: ...83 CDR 830 Anode Connection...
Page 89: ...CDR 830 89 ORDER NO RRV2408M T ZZR DEC 2000 Printed in Japan...
