Table of Contents
Advertisement
5. LAU PB Level Adjustment
Measuring equipment: Audio analyzer (dBm measurement mode, 80 kHz LPF)
CH1 adjustment
(1) Connect the input of audio analyzer to MONITOR OUTPUT L connector.
(2) Playback the 1 kHz, 0 VU portion (0:00 to 2:55) of alignment tape CR8-1A or CR8-1B PS, and
perform the level adjustment.
(DNW-A22: CR8-1A, DNW-A22P: CR8-1B PS)
Adjustment point: 1RV504/APR-12(B-1)
+4.0 ± 0.2 dBm (at 600 Z load)
Specification:
CH2 adjustment
(1) Connect the input of audio analyzer to MONITOR OUTPUT R connector.
(2) Playback the 1 kHz, 0 VU portion (0:00 to 2:55) of alignment tape CR8-1A or CR8-1B PS, and
perform the level adjustment.
(DNW-A22: CR8-1A, DNW-A22P: CR8-1B PS)
Adjustment point: 1RV605/APR-12(F-1)
+4.0 ± 0.2 dBm (at 600 Z load)
Specification:
A
B
C
A No.
RV504
E500
RV502
TP501
TP500
RV500
S500
RV503
RV501
RV103
TP101
COR101
20 18 16
E100
COR300
16 18 20
COR301
UNITY (L)
VAR (L)
COR302
+4
TP300
0
–3
>EP–GW<
–20
RV300
E300
APR-12 Board (Side A)
DNW-A22/A22P
D
APR–12
E
F
G
LOTNO,
S NO,
RV605
E600
TP601
RV602
TP600
RV603
RV600
S600
RV604
RV601
RV203
TP201
COR201
E200
20 18 16
TP700 TP560
COR400
16 18 20
COR401
UNITY (R)
VAR (R)
COR402
+4
TP400
0
–3
–20
RV400
E400
TP701
1
2
3
4
5
6
7
6-2. APR-12 Board Replacement
6-17
Advertisement
Table of Contents
