Haad (001-003); Head Amp And Ad Converter 001 - Yamaha RIO3224-D Service Manual

W V U T S
■ HAAD 001 CIRCUIT DIAGRAM (Rio3224-D)
28CC1-2001089251-1
4
R Q P O N M
MULTIPLEXER
OP AMP
MULTIPLEXER
not installed
OP AMP
not installed
MULTIPLEXER
OP AMP
MULTIPLEXER
not installed
OP AMP
not installed
L K J I H G
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
OP AMP
■ HAAD 001 CIRCUIT DIAGRAM (Rio3224-D)
F E D C B A
GAIN SETTING CHART
Rated Input
（定格入力）
(dB)
ADC
Analog Input Characteristics
Input Level
Input Actual Load For Use With
GAIN
Terminals Impedance Nominal
Nominal Max. before clip
+66dB –62dBu (0.616mV) –42dBu (6.16mV)
10kΩ
+18dB –14dBu (155mV) +6dBu (1.55V)
50-600Ω Mics &
INPUT 1-16
600Ω Lines
+17dB –13dBu (174mV) +7dBu (1.74V)
3kΩ
–6dB +10dBu (2.45V) +30dBu (24.5V)
+66dB –62dBu (0.616mV) –42dBu (6.16mV)
10kΩ
+18dB 50-600Ω Mics & –14dBu (155mV) +6dBu (1.55V)
*2
INPUT 17-32
+17dB 600Ω Lines –13dBu (174mV) +7dBu (1.74V)
3kΩ
–6dB +10dBu (2.45V) +30dBu (24.5V)
*1. XLR-3-31 type connectors are balanced.(1=GND, 2=HOT, 3=COLD)
*2. Rio3224-D only
* In these specifications, 0dBu = 0.775 Vrms.
* All input AD converters are 24bit linear, 128times oversampling.
* +48V DC ( phantom power ) is supplied to INPUT XLR type connectors via each individual software controlled switch.
ADC
HEAD AMP AND AD CONVERTER
Rio3224-D
1
2
3
4
5
6
7
Connector
8
XLR-3-31 type
*1
(Balanced)
XLR-3-31 type
*1
(Balanced)
9
10
11
12
13
14
15
16
17
21