Read Harman Kardon AVR 134 Service Manual online
Measuring methods in confirmity with IEC standard 315
Measurements condition FM : Ref. frequency = ( 98.1 MHz), Audio frequency = 1kHz
Reference level = 1 mV on (75ohms, 300ohms) Deviation :
Filter = B.P.F at STEREO and MONO
Filter = B.P.F at STEREO and MONO
Test Point : TP1 = 90.1 MHz, TP2 = 98.1 MHz, TP3 = 106.1 MHz (50kHz STEP)
MOD:40 kHz(Mono)/40 kHz±7.5 kHz (STEREO)
9. FM SECTION
NO
UNIT
NOMINAL
LIMIT
1
TUNING COVER RANGE
LOW ~ HIGH
MHz
STEP
AUTO/MANUAL
kHz
2
USABLE SENSITIVITY
TP 1
dBu
12
15
S/N = 30
TP 2
dBu
12
15
TP 3
dBu
12
15
3
AUTO STOP LEVEL
dBu
25±6
25±8
4
S/N RATIO
MONO
dBu
55
50
IHF "A"
STEREO
dBu
50
45
5
T.H.D
MONO 1, 1kHz
ポ
0.7
1.2
STEREO 1, 1kHz
ポ
1.0
1.5
6
OVER LOAD DISTORTION (120dBu,75kHz)
MONO
dB
2
3
7
STEREO SEPARATION
250ภ
dBu
30
25
(MAIN 53.5%, PILOT 10%)
dBu
30
25
EXT 19kHz FILTER
6.3
dBu
20
15
8
FREQUENCY RESPONSE (50us, -3dB)
TP 2
Hz
60~8k
70~7k
9
IF REJECTION
TP 1
dB
75
70
10 IMAGE REJECTION
TP 3
dB
75
70
11 AM SUPRESSION (at AM 30% 1kHz)
dB
40
35
12 OUPUT LEVEL(MONO)
TP 2
mV rms
280±50
280±100
DESCRIPTION
87.5~108
50/50(200/200 Brasil)
7
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