Sony DNW-A100 Maintenance Manual page 65

CH1 adjustment (OXIDE)
2. Connect the audio analyzer's input to AUDIO OUT-
PUT CH1 connector.
When the VTR is equipped with BKNW-105 (optional
kit), connect the audio analyzer to MONITOR OUT-
PUT L connector.
3. During play back the 1 kHz, _20 VU portion (5:00 to
5:55) of the following alignment tape in PLAY mode,
measure the audio level on the audio analyzer.
For DNW-A100/A50/A45:
For DNW-A100P/A50P/A45P: CR8-1A PS
This measured audio level is a reference level (0 dB).
4. During play back the following specified portions
(_20 VU) of the CR8-1A / CR8-1A PS in PLAY
mode, check or adjust the dB ratio in response to each
frequency portion.
n
If the specification for RV500 adjustment is not
satisfied, readjust after changing the setting of
S500(A-1) on the APR-12 board.
Specification [dB]
Playback portion DNW-A100/A50/45
5:00 to 5:55 (1 kHz) Measured audio level is a reference level (0 dB).
+0.7
6:00 to 6:25 (40 Hz) C.V.
_1.7
C.V. ±0.3
6:30 to 6:55 (7 kHz)
C.V. ± 0.3
7:00 to 7:25 (10 kHz)
+0.3
7:30 to 7:55 (15 kHz) C.V.
_1.0
The correction values (C.V.) are given on the label of the alignment tape.
DNW-A100/A50/A45
DNW-A100P/A50P/A45P
http://getMANUAL.com
CH2 adjustment (OXIDE)
5. Connect the audio analyzer's input to AUDIO OUT-
6. During play back the 1 kHz, _20 VU portion (5:00 to
CR8-1A
7. During play back the following specified portions
DNW-A100P/A50P/45P
+0.7
C.V.
_1.7
C.V. ±0.4
C.V. ± 0.4
+1.0
C.V.
_1.7
3-6. Audio System Adjustment (APR-12/13 Boards)
3-6-9. LAU PB System Adjustment (APR-12 Board)
PUT CH2 connector.
When the VTR is equipped with BKNW-105, connect
the audio analyzer to MONITOR OUTPUT R connec-
tor.
5:55) of the CR8-1A / CR8-1A PS in PLAY mode,
measure the audio level on the audio analyzer.
This measured audio level is a reference level (0 dB).
(_20 VU) of the CR8-1A / CR8-1A PS in PLAY
mode, check or adjust the dB ratio in response to each
frequency portion.
n
If the specification for RV600 adjustment is not
satisfied, readjust after changing the setting of
S600(G-1) on the APR-12 board.
Adjustment point
—
(Check only)
CH-1: 1RV501/APR-12 (A-1)
CH-2: 1RV601/APR-12 (G-1)
(Check only)
CH-1:1RV500/APR-12 (A-1)
CH-2:1RV600/APR-12 (G-1)
A B C D
A No.
E500
RV504
RV502
TP501
TP500
S500
RV503
RV501
RV500
COR100
RV103
TP101
RV100
COR101
+4 –3
0 –20
20 18 16
RV101
RV102 E100
TP100
COR300
16 18 20
COR301
UNITY (L) VAR (L) UNITY (R)
COR302
+4
TP300 TP400
0
–3 >EP–GW<
–20
RV300
E300
APR-12 Board (Side A)
APR–12 E F G
LOTNO, S NO,
E600
RV605
TP601
1
RV602
TP600
RV603
S600
RV604
RV601
RV600
2
COR200
RV203
TP201
RV200
COR201
+4 –3
0 –20
3
E200
20 18 16
RV201
RV202
TP200
TP700 TP560
4
COR400
16 18 20
COR401
VAR (R)
5
COR402
+4
0
–3
–20
RV400
E400
TP701 6
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