Philips AZ380, Руководство по обслуживанию

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TECHNICAL SPECIFICATION
TUNER PART
TECHNICAL description:
AM (circuitry) FMAM (active components) FM
RF
Si4831 Si4831
1
IF
Si4831 Si4831
2
Detector 3
Decoder 4
GENERAL part:
WAVE RANGE TOLERANCES TUNING STEP
5
FM (05/12/96/55
version)
87.5 –108MHZ LOW : +0/-0.3MHZ
HIGH: +0.5/-0MHZ
na 6
AM / 96
530 – 1 KHZ
LOW: +0/-23KHZ
HIGH: +60KHZ/-0
na 7
MW / 55
530 – 1 07 KHZ
LOW: +0/-23KHZ
HIGH: +60KHZ/-0
na 8
AERIAL:
MW Ferrite : 60 mm /D 10mm FM telescope : 430
mm
11
FM wire :
N/A
Execution -
N/A
12
INDICATORS:
Pointer stroke: Execution pointer: 13
Knob indication over: Field Strength: 14
ELECTRICAL DATA:
AM: Nom. limit FM: nom. limit
RATED OUTPUT POWER
10%THD 80%MOD120dB
1W -6DB
AM Suppression 30 25 dB 15
-3dB limiting point 12 18 dBf 16
Amplification reserve 2 +/- 3dB Amplification reserve 2 +/-2 dB 17
AGC figure of merit 31 25 dB
Distortion (RF 74 to 94 dBuV/m,
m=80%)
5 7%Distortion
(RF 32 to 72 dBuV,
mono ' f 100kHz, Stereo : 90% + 9%)
5 7 % 19
Stereo -46dB quieting 40 44 dBuV 20
Cross-talk (RF 1mV, ' f 40kHz,
400Hz /1kHz / 5kHz)
21/25/18 18/20/15 dB 21
Strong S/N radio
RF 94dBuV/m, m=80%
45 40 S/N radio (A-Weighted, RF 4mV) 53 50 dBA 22
Channel difference 0 3 dB Channel unbalance (250Hz to 6300Hz) 0 3 dB 23
Modulation hum (30% mod) 45 40 Modulation hum (22.5kHz dev) 44 40 dB 24
2, 3th IF harmonics rejection
(RF 64 to 94dBuV/m)
21 18 8, 9,10
th
harmonics whistle 35 30 dB 25
Overall frequency response (-
3dB)
60
1.5
120 Hz
1.3k Hz
Overall frequency response (+/- 3dB, 1kHz ref)
- 50us
-
70
12k
80 Hz
10k Hz
26
Oscillator stop voltage
120V setting
230V setting
90
190
96 Vac
192 Vac
Oscillator stop voltage
120V setting
230V setting
90
190
96 Vac
192 Vac
27
Search tuning sensitivity / N/A Search tuning sensitivity / N/A 28
Search tuning stop accuracy
RF t D 26 to 1mV
RF t 1V/m
/
/
/
/
N/A
Search tuning stop accuracy
- 20uV ~ 20mV
- 20mV ~ 500mV with step size = 50kH
- 20mV ~ 500mV with step size > 50kHz
/
/
/
N/A
29
Search time of total tuning range / N/A Search time of total tuning range N/A 30
IF 45KHZ
r 1kHz
IF 2.18MHZ
r 0.2MHz
31
Frequency drift vs temp.
-10 q C to 10 q C
10 q C to 30 q C
30 q to 50 q C
0.7 / 1000 * operating
frequency
Frequency drift vs temp.
15KHZ/
e
C
10KHZ/
e
C
15KHZ/
e
C
32
Dial calibration 5 7% Dial calibration -1.2 +/- 1.5MHz 33
Stereo On point (Pilot deviation : 6kHz) 14 15.5 dBuV 34
Switching on – 6dB 35
wave range Sensitivity for
50mW
noise limited sensitivity
(26dB)
Image
rejection
IF rejection large
signal
Selectivity
S9/300kHz
ban3dB
FM
nom. 19 21 55 130dBf 21 36
lim.
21 19 50 125dBf 19 37
MW
nom.
68 35 28 1000 21 3.0 38
lim. 72 28 24 500 16 >2.5 39
unit
P V/m P V
dBf
P V/m
dBf dB dB dB mV/m dB kHz