Electrical Adjustment After Replacing The At Head - Sony DNW-A100 Maintenance Manual

6-4. Electrical Adjustment after Replacing the AT Head

Adjustment Items
No. Item
1 Preparation
2 LAU PB frequency response adjustment (Audio head dumping adjustment)
OXIDE
METAL
(DNW-A100P/A50P/A45P only)
3 LAU Dolby level adjustment
4 LAU PB level Adjustment
5 LAU PB phase adjustment
6 LTC Erasure current adjustment
7 LTC PB level check
8 LTC OA check
9 LTC Erase ratio check
Dolby is registered trademark of Dolby Laboratories Licensing Corporation.
n
When AES/EBU I/F kit BKNW-105 is equipped in the DNW, substitute MONITOR OUTPUT L/R
connectors for AUDIO OUTPUT CH1/CH2 connectors respectively to measure.
To perform the electrical adjustments, the following equipment and fixtures are required.
. Audio signal generator:
. Audio analyzer:
n The audio analyzer should be filtered through 80 kHz LPF throughout adjustment.
. Audio level meter:
. Band-pass filter (1 kHz)
. Time code generator:
. Time code reader:
. Oscilloscope:
. Extension board:
. Alignment tapes
For DNW-A100/A50/A45:
For DNW-A100P/A50P/A45P: CR8-1A PS (Part No. 8-960-098-45),
. Recording tape:
n For this recording tape, prepare the virgin tape or no recorded tape that erased using the tape
eraser, etc. in advance.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
Adjustment point
CH1 1RV501/APR-12, 1RV500/APR-12
[S500/APR-12(A-1)]
1RV601/APR-12, 1RV600/APR-12
CH2
[S600/APR-12(G-1)]
CH1 1RV502/APR-12(A-1)
CH2 1RV602/APR-12(G-1)
CH1 1RV503/APR-12(C-1)
CH2 1RV604/APR-12(E-1)
CH1 1RV504/APR-12(B-1)
1RV605/APR-12(F-1)
CH2
1RV603/APR-12(F-1)
1LV300/TC-96(A-1)
check
check
check
TEKTRONIX SG505-option 02 or equivalent
TEKTRONIX AA501A-option 02 or equivalent
HEWLETT-PACKARD HP3400A or equivalent
SONY BVG-1600 (for NTSC) / BVG-1600PS (for PAL) or equivalent
SONY BVG-1500 (for NTSC) / BVG-1500PS (for PAL) or equivalent
TEKTRONIX 2465B or equivalent
EX-556 (Part No. A-8277-212-A)
CR8-1A (Part No. 8-960-097-45) and
SR5-1 (Part No. 8-960-075-01)
CR8-1B PS (Part No. 8-960-096-86), and
SR5-1P (Part No. 8-960-075-51)
BCT-SX series (Betacam SX cassette: SONY standard products)
6-4. Electrical Adjustment after Replacing the AT Head
Test point
AUDIO OUTPUT CH1
AUDIO OUTPUT CH2
AUDIO OUTPUT CH1
AUDIO OUTPUT CH2
TP501/APR-12 (C-1)
TP601/APR-12 (E-1)
AUDIO OUTPUT CH1
AUDIO OUTPUT CH2
AUDIO OUTPUT CH1/CH2
TP301/TC-96 (B-1)
TP102/TC-96 (A-2)
TP100/TC-96 (A-2)
TP101/TC-96 (A-3)
TP102/TC-96 (A-2)
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