Electro-Voice Precision Series Service Manual page 12

DIM 100
11. Frequency Response
3.0000
2 2
0.0
-3.000
-6.000
-9.000
1 1
-12.00
-15.00
-18.00
-21.00
10 100
Plot 1: HI/LO-Cut on Plot 2: HI/LO-Cut off
12. Noise Interference
- U(F) = external voltage un-weighted with B = 22 Hz ... 22 kHz, effective value (IEC 268-1)
- U(G) = noise voltage, frequency-weighting filter according to CCIR-468-3, quasi peak weighted (IEC 268-1)
- U(A) = interference voltage A-weighted, dB(A), effective value (IEC 268-1)
- Signal-to-noise ratio referenced to a nominal output voltage of 69.3 V (1200W/4ohms)
- HI/LO-CUT ON, GND LIFT = GROUNDED, input sensitivity = 0 dBu
Interference
output voltage
U(F) < 615µV
< 3.65mV
U(G)
U(A) < 490µV
13. Crosstalk
- at f = 1 kHz
14. DAMPING FACTOR - internal
- internal with f = 1 kHz
15. SLEW RATE
- internal
16. Factory Defaults
• Caution: make sure to ckeck these settings:
Function
Input Sensitivity L & P
Limiter Off Switch
Limiter Service
Fan Service
Input Routing
HI/LO-Cut Filter
Bridged Mode
Limiter
CIR.GND to Chassis
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< 0.009 %
AMPL(dBr) vs FREQ(Hz)
1k
S/N ratio Equivalent input
interference
voltage
> 101 dB < 6.9µV
> 85.5 dB < 41µV
> 103 dB < 5.5µV
Location Control
86207/86211 Jumper J11/J21
86207/86211
86207/86211 S101 / S201
86207/86211
rear panel slide switch
rear panel slide switch
rear panel slide switch
rear panel slide switch
rear panel slide switch
7
< 0.005 %
21 JUN 94 10:06:59
10k 100k
Equivalent input
interference level
< -101 dBu
< -85.5 dBu
< -103 dBu
< -70 dB
>300
>40 V/µs
State
plugged in
S102 open
open
S001 open
Dual/Stereo
on
Normal
Slow
Grounded
3.15 kHz, 15 kHz
Residual
interference
output voltage
< 435µV
< 1.55mV
< 345µV
Setting
0 dBu
Limiter on
Dual Mode
Filter on
Dual Mode
Limiter slow