JBL JSR-400 Service Manual page 5

Dolby Pro-Logic A/V Receiver
Ò
Measuring methods in conformity with IEC standard 315
Measurement conditions FM:
Radio frequency = 98.1 MHZ,
Audio frequency = 1 kHz
Reference level = 1mV on ( 75ohms, 300ohms)
Test Point: TP 1 = 90.1MHz, TP 2 = 98.1 MHz, TP 3 = 106.1 MHz
Filter = B.P.F at STEREO
Power Supply: 120V, 60Hz
FM Section
NO. DESCRIPTION
TUNING RANGE
1
STEP
USABLE SENSITIVITY
2
S/N = 30dB
FULL LIMITING SENSE
3
-3dB
4
AUTO STOP LEVEL
S/N RATIO
5
IHF-A FILTER
TOTAL HARMONIC DISTORTION
6
50dB QUIETING SENS.
7
CHANNEL SEPARATION
8
9 FREQUENCY RESPONSE AT ± 1.5dB
10
SPURIOUS RESPONSE
11 IF REJECTION
12
IMAGE REJECTION
13
AM REJECTION RATIO
14
ALTERNATIVE CH SELECTIVITY
15
OUTPUT LEVEL MONO
TUNER
UNIT
MHz
LOW ~ HIGH
AUTO/Man. kHz
dBf
TP 1
dBf
TP 2
TP 3
dBf
OUTPUT =
dBf
dBf
dBf
MONO
STEREO dBf
%
MONO
STEREO %
dBf
MONO
STEREO
dBf
dBf
250Hz
dBf
1kHz
6.3kHz
dBf
Hz
dB
dB
TP 1
dB
TP 3
dB
dB
± (400)KhZ
mV
LIMIT L/R NOMINAL L/R
87.5~107.9M
100
£ 23.2
£17.2
£ 23.2
£17.2
£ 23.2
£17.2
£ 15.2 £12.2
31.2± 5 31.2±3
³ 65 ³72
³ 59
³70
£ 1
£0.5
£ 1.5
£1
£ 23.2
£20.2
£ 45.2
£43.2
³ 20
³40
³ 26
³45
³ 18
³35
30~12.5k
20~15k
³ 60
³70
³ 60
³70
³ 30
³40
³ 25
³30
³ 55 ³65
500± 200 500± 150
JSR-400
5