Yamaha CL3 Service Manual page 354

W V U T S
■ HAAD 001 CIRCUIT DIAGRAM (CL3/CL1)
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28CC1-2001089251-1
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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
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 *1
Sensitivity Nominal
+66dB –82dBu (61.6μV) –62dBu (0.616mV)
10k
+18dB 50-600 Mics –34dBu (15.5mV) –14dBu (155mV)
OMNI IN 1-8
& 600 Lines
+17dB –33dBu (17.4mV) –13dBu (174mV)
3k
–6dB –10dBu (245mV) +10dBu (2.45V)
+64dB 50-600 Mics –70dBu (0.245mV) –60dBu (0.775mV)
TALKBACK 10k
& 600 Lines
+20dB –26dBu (38.8mV) –16dBu (0.123V)
*1. Sensitivity is the lowest level that will produce an output of +4dBu (1.23V) or the nominal output level when the unit is set to maximum gain.
(all faders and level controls are maximum position.)
*2. XLR-3-31 type connectors are balanced. (1= GND, 2= HOT, 3= COLD)
*3. In these specifications, 0dBu= 0.775 Vrms.
*4. All input AD converters are 24bit linear, 128times oversampling.
*5. +48V DC ( phantom power ) is supplied to OMNI IN (1-8) and TALKBACK XLR type connectors via each individual software controlled switches.
ADC
HEAD AMP AND AD CONVERTER
■ HAAD 001 CIRCUIT DIAGRAM (CL3/CL1)
CL3/CL1
Connector
Max. before clip
–42dBu (6.16mV)
+6dBu (1.55V) XLR-3-31 type
*2
+7dBu (1.74V) (Balanced)
+30dBu (24.5V)
–40dBu (7.75mV) XLR-3-31 type
*2
+4dBu (1.23V) (Balanced)