Daewoo TP-501G, Service Manual

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ʳʽʽʳ ʳ ʳ ʳ ʳ ʳ ʳ
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ʳ ʳ ʳ ʳ ʳ ʳ ˠ˴́̈˹˴˶̇̈̅˸̅̅ˍˍʳ ʳ
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ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ʳ ˠ̂˷˸˿ˍˍʳ ʳ ˧ˣˀˈ˃˄˚
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ʳ ʳ ʳ ʳ ʳ ʳ ˖̈̆̇̂̀˸̅
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̆ʳˡ˴̀˸ˍʳ ʳ ʳ ʳ ʳ ʳ ʳʳ ʳ ˧˸̆̇ʳ˖̂́˷˼̇˼̂́̆ˍˍʳ ʳ ʳ ˄ˁʳ˦̈̃̃˿̌ʳ ʳ ˩̂˿̇˴˺˸ˍʳ˅˅ˆ˃ʳ˩ʳ˔˖ʳ ʳ ʳʳ ˈ˃ʳ˛̍ʳ˄˄˅˩ʳ˗˖ʳ
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ʳ ʳ ʳ ʳ ʳ ˆˁʳ˟̂˴˷ʳ˜̀̃˸˷˴́˶˸ʳʳˍʳ ʳ ˋʳ
ˢ˻̀
ʳ ʳ ʳ ʳ ʳ ʳ ʳ
4
No.
Description Brand Name Model No.
1 Digital Signal Generator KENWOOD SG-5150
2 Distortion Meter MEGURO MAK-6571C
3 Millivolt Meter LODESTAR MV-3201B
4 Low-Frequency Generator KENWOOD AG-203A
5
Oscilloscope GW GOS-653G
6 Wow-and-Flutter KIKUSUI 677D
BAND: FM/EUROPE
NO
.
ITEMS Measurement Conditions
UNIT
NOMINA
L
LIMIT
13 Limiting Sensitivity 86 MHz Input Urf=1mV Vol Control to Ref. Output Power, Measure MIN. Urf for Output Decrease -3dB dB 20 30
14 AFC Holding Range (60 dB) 86 MHz
Urf=1mV, Measure Range for Output -3dB, Difference to Center Frequency, Record to outband
(+
Ϧ
f)+(-
Ϧ
f)
KHz 450 ±100
15 Am Suppression 86 MHz
Urf=1mV DEV.=22.5KHz 1KHz Out =Ref. Output, Change to 30% Am Mod. (1KHz), Measure The
Output Level: Ref. Output / Am Mod. Output
dB 40 30
16
Modulation Hum
86 MHz
Urf=1mV AF =22.5KHz 98MHz Pilot, Vol Control to Ref. Output Measure (S+N)/N, Measure With AC
Supply
dB -38 -30
17 Random Noise All Band No Input Vol =MAX. Measure Noise Level
(Rms)
mV
100 500
0 +6
18
Frequency Response 86 MHz Urf=1mV Eq= Centre BASS BOOST= OFF Stereo LED OFF
125Hz
dB
4k
0 +6
19 Distortion 86 MHz Urf=1mV, MOD.=22.5KHz AF=1KHz,Volume Control Vol to Ref. Output, Measure Distortion % 0.9 2
20 MAX. Distortion 86 MHz Urf=1mV, MOD.=75KHz AF=1KHz,Volume=MAX. Measure Output Power % 20 30
21 10% THD Output Power 86 MHz Urf=1mV MOD.=75KHz 1KHz, Control Vol to10% THD, Measure Output Power mW 1500 1200
22 Maximum Output Power 75KHz (60 dB) 86 MHz Urf=1mV MOD.=75KHz 1KHz, Vol= MAX. Measure Output Power mW 2000 1500
23 Overload Distortion 100 mV (100 dB) 86 MHz
Urf=100 mV(100dB) MOD.=75KHz, Vol=Ref. Output
% 4 6
24 Oscillation Drop Voltage 68/104 MHz Urf=1 mV MOD.=22.5KHz, Vol= Ref. Output Measure Limit Low Supply Osc Stop Voltage V / /
25 Channel Balance ALL BAND Urf=1mV DEV.=22.5KHz Vol = MIN. to MAX. dB / /
Level dB / /
26 Record Playback
Urf=1mV DEV.= 22.5KHz VS MTT-112B 1KHz
AC Bias
% / /
Distortion
DC Bias
;
% 6 10