2 - 2
SERVICE MEASUREMENT
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
Tuner FW
Use a bandpass filter to eliminate hum (50Hz, 100Hz) and disturbance from the pilottone (19kHz, 38kHz).
Ri=50
½
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 250kHz) to eliminate hum (50Hz, 100Hz).
RF Generator
e.g. PM5326
Ri=50
½
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
DUT
CD
RECORDER
Use Audio Signal Disc SBC429 4822 397 30184
(replaces test disc 3)
Use Universal Test Cassette Fe SBC420 4822 397 30071
L
R
LEVEL METER
e.g. Sennheiser UPM550
with FF-filter
S/N and distortion meter
e.g. Sound Technology ST1700B
DUT
LF Generator
e.g. PM5110
Ri=50
½
Summary of Contents for MAS65
Page 2: ...1 1 HANDLING CHIP COMPONENTS ...
Page 3: ...1 2 ...
Page 6: ...3 1 CONNECTION AND CONTROLS ...
Page 7: ...3 2 CONNECTION AND CONTROLS ...
Page 11: ...5 1 BLOCK DIADRAMS ...
Page 12: ...5 2 5 2 SET WIRING DIAGRAM ...
Page 13: ...6 1 6 1 CIRCUIT DIAGRAM RADIO BOARD ...
Page 14: ...6 2 6 2 IC101 LAYOUT DIAGRAM RADIO BOARD COMPONENT SIDE COPPER SIDE ...
Page 15: ...7 1 7 1 CIRCUIT DIAGRAM CASSETTE BOARD ...
Page 16: ...7 2 LAYOUT DIAGRAM CASSETTE BOARD 7 2 COMPONENT SIDE COPPER SIDE ...
Page 17: ...8 1 8 1 CIRCUIT DIAGRAM CD BOARD ...
Page 18: ...8 2 8 2 LAYOUT DIAGRAM CD BOARD COMPONENT SIDE COPPER SIDE ...
Page 19: ...9 1 9 1 CIRCUIT DIAGRAM CONTROL BOARD ...
Page 20: ...9 2 9 2 CIRCUIT DIAGRAM MAIN BOARD ...
Page 21: ...9 3 9 3 LAYOUT DIAGRAM CONTROL AND MAIN BOARD ...
Page 22: ...10 1 10 1 CIRCUIT DIAGRAM POWER BOARD ...
Page 23: ...10 2 10 2 LAYOUT DIAGRAM FUSE BOARD LAYOUT DIAGRAM POWER BOARD ...
