23
24
10. LEVEL DIAGRAM
NC3FBH1
MIC/Line
Lch.
GND
Ref.
MIC
Line
1
3
2
SOURCE
MIC ATTEN.
ANC
Input
Ref
RCA2
1
2
3
VR
Internal Speaker
HP/SPK Mode
Power Amp.
Phone Output
Line Output
GND
GND
GND
A to D
D to A
AK4512
Balanced Amp
ALC/Limiter
GND
L.P.Filter
ALC / Limiter
Input
REC LEVEL
Converter
Converter
QG10(1/2)
QG10(2/2)
QG08
QG03
QG01
QG02
QG04
QE01
QE11
QE04
QE10
QE02
QG06
QE91,QE93
QD20
QD30
QK04
QK01
QK06
QK03
QK05(1/2)
QK05(2/2)
QK09
QK10
SEL
Level
Output Level
+20dBu
+10dBu
0dBu
-10dBu
-20dBu
-30dBu
-40dBu
-50dBu
-60dBu
GND
GND
GND
GND
GND
GND
VR Level = 2
Line Out
1-1'
2
3
4
5
6
7
+48v
GND
1
1'
2
3
4
7
6
8
9
10
11
12
13
14
15
16
5
Phone Amp.
(4 ohm Load)
(60 ohm Load)
0dBu=0.775v
VR Max
HP/SPK VR
Speaker Out
Phone Out
8
9
10
11
12
13
14
15
16
(Test Disk 0dB Playback)
= Level 2
Play Mode
Rec Mode
PQ01
16mV
52mV
46mV
720mV
630mV
2000mV
17mV
36mV
165mV
3mV
85mV
60mV
43mV
1.75mV
200mV
1
2
3
1
2
3