JBL JSR-400 Service Manual page 6

Dolby Pro-Logic A/V Receiver
Ò
Measuring methods in conformity with IEC standard 315
Measurement conditions AM - MW: Radio frequency = 1000/999kHz
Reference level = 5mV/m, 10mV/m on 50ohms
Modulation = 30%
Test Point: MW TP1 = (600)kHz
LW TP1 = 162kHz
AM Section
NO. DESCRIPTION
TUNING RANGE
MW
1
STEP
USABLE SENSITIVITY
S/N = 20dB
2
S/N RATIO
3
4
TOTAL HARMONIC DISTORTION
5 OVER LOAD DISTORTION 5mV 80% MOD
FREQUENCY RESPONSE at -6dB MW
6
SELECTIVITY 10KhZ/9KhZ
7
8
AGC FIGURE OF MERIT
IMAGE REJECTION
9
10 FREQUENCY RESPONSE AT ± 1.5dB
AUTO STOP LEVEL
11
TUNED LEVEL
12
13
OUTPUT LEVEL
Audio frequency = 400Hz
LW: Radio frequency = 207kHz
Audio frequency = 400Hz
TP2 = (1000)kHz
TP2 = 207kHz
UNIT
kHz
LOW ~ HIGH
kHz
LW
kHz
AUTO/Man.
uV/m
MW TP 1
uV/m
TP 2
uV/m
TP 3
LW TP 1
uV/m
TP 2
uV/m
TP 3
uV/m
MW
LW
LW
MW
LW
INPUT 100mV
MW = TP 3
LW = TP 3
uV/m
MW
LW
uV/m
uV/m
MW
LW
uV/m
TP3 = (1400)kHz
TP3 = 252kHz
LIMIT L/R
520~1710
£ 800
£ 800
£ 800
dB ³ 35
dB
% £ 1.5
% £ 10
Hz 100~2k
Hz
dB ³ 20
dB
³ 40
dB
dB ³ 30
dB
£ 15
%
% £ 15
800(± 6dB)
800(± 6dB)
mV
120± 40
NOMINAL L/R
10
£500
£500
£500
³45
£1.0
£5
80~2.3k
³25
³45
³35
£10
£10
800(±5dB)
800(±5dB)
120±30
JSR-400
6