LF Generator
e.g. PM5110
Recorder
Use Universal Test Cassette CrO2
SBC419 4822 397 30069
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
or Universal Test Cassette Fe
SBC420 4822 397 30071
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
L
R
DUT
CD
Use Audio Signal Disc
(replaces test disc 3)
SBC429 4822 397 30184
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
S/N and distortion meter
e.g. Sound Technology ST1700B
Frame aerial
e.g. 7122 707 89001
Tuner AM (MW,LW)
To avoid atmospheric interference all AM-measurements have to be carried out in a Faraday´s cage.
Use a bandpass filter (or at least a high pass filter with 250Hz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50
Ω
Bandpass
250Hz-15kHz
e.g. 7122 707 48001
LF Voltmeter
e.g. PM2534
DUT
RF Generator
e.g. PM5326
S/N and distortion meter
e.g. Sound Technology ST1700B
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50
Ω
Tuner FM
MEASUREMENT SETUP
1-4
Содержание FWC170
Страница 14: ...4 1 BLOCK DIAGRAM 4 1 FW C155 Block diagram dd wk142 5 ...
Страница 15: ...5 1 SET WIRING DIAGRAM 5 1 FWC170 Wiring Diagram ...
Страница 16: ......
Страница 21: ...6 5 6 5 AM FRAME AERIAL FM 75Ω FM FRONTEND B A COMBI PART COMPONENT LAYOUT ONLY FOR 22 25 ...
Страница 22: ...6 6 6 6 COMBI PART SMD LAYOUT ONLY FOR 22 25 ...
Страница 25: ...SUPPLY CIRCUIT 6 9 6 9 ...
Страница 26: ...TAPE CIRCUIT 6 10 6 10 ...
Страница 27: ...POWER AMPLIFIER ECO CIRCUIT 6 11 6 11 ...
Страница 28: ...FRONT PART COMPONENT LAYOUT 6 12 6 12 ...
Страница 29: ...6 13 6 13 FRONT PART SMD LAYOUT ...
Страница 30: ...FRONT CIRCUIT 6 14 6 14 ...
Страница 34: ...ECO POWER AMPLIFIER CIRCUIT 7 2 7 2 ...
Страница 38: ...9 2 EXPLODED VIEW Motor Assembly ...
Страница 42: ...10 4 Service Position ...