Electro-Voice CONTRACTOR PRECISION SERIES, Service Manual

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3
N. DIMENSIONS
Height : 132.5 mm (3 HU)
Width : 483 mm
Depth : 426 mm
O. WEIGHT m = 27 kg
P. EXTENSIONS optionally available 2 x input transformer NRS 90176
MEASURED SPECIFICATIONS: CPS3 entire unit
Measurement conditions, unless differently specified:
• tolerance of measured values:
∆
X = ±1.5 dB
• measuring frequency: f = 1 kHz
• stated levels refer to: U = 775 mV (0 dBu)
• level controls set to their clockwise limits
• pin assignment of the XLR-type connectors: PIN 1: GROUND
PIN 2: + INPUT
PIN 3: - INPUT
• source resistance for the induction via the XLR-type connector: R(Q) = 50
Ω
• MAIN-PCB numbers relate to the models as follows:
MAIN - PCB
CPS3 / 120 V 86212
CPS3 / 230V 86208
• MAIN-PCB and POWER-AMP-PCB are provided with service connectors.
The Pin-assignment of these service connectors is as follows:
84158 86208
86212 86208
86212
CNSERV Assignment CNASERV Assignment CNBSERV Assignment
1 Kodierung 1
Limiter A
&
B OFF
1 n.c.
2 BIAS Hot - Side + 2 Service Limiter A 2 Service Limiter B
3 BIAS Hot - Side - 3 -15V 3 - 15 V
4 Hot - Out 4 GND 4 Fan voltage
5 BIAS Cold - Side + 5 + 15 V 5 Service Fan
Switch
6 BIAS Cold - Side - 6 heat sink temperature
A
&
B
6 Service Fan
Switch
7 GND 7 + U1 front-end A 7 + U1
front-end B
8 floating v 8 - U1 front-end A 8 - U1
front-end B
9 floating voltage - 9 coding 9 coding
1. Operating voltage: U(B) = 100V/ 120V/ 230V/ 240V
depending on the model: 50Hz ... 60Hz
2. Deviation limit of the operation voltage: ±10%
3. Power consumption (both channels driven):
3.1. at idling condition P(B) = 140 - 200 W
3.2. at standard operation (80W/4
Ω
) P(B) = 1000 W
3.3. at nominal condition (800W/4
Ω
) P(B) = 2950 W
3.4. at 1/8 of the nominal power (100W/4
Ω
) P(B) = 1100 W
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