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Shure U4D Dual Diversity UHF Receiver
18
25D1062 (AG)
Service Procedures
Test Equipment
Most test equipment needed is described in the Shure Wireless
Service Equipment Manual. The following test equipment (or approved
equivalent) is also needed.
Table 2
Test Equipment
Equipment Type
Model
Audio analyzer
*Hewlett-Packard 8903B
Digital multimeter
Fluke 87
Rf signal generator
HP 8656B or E440B
Frequency counter
Hewlett-Packard 53181A
Spectrum analyzer
HP 8590L or E4403B
Shure U4D receiver
Shure U4D
*Audio levels in dBu are marked as dBm on the HP8903B.
LCD Back Light
Brightness Adjustment
Adjust R531 on the display board to achieve desired brightness
level.
This adjustment is only possible on G and later versions of the
printed circuit board.
Summary of Contents for U4D
Page 11: ...Shure U4D Dual Diversity UHF Receiver 10 25D1062 AG Preliminary Tests Audio Rf Board Side 2...
Page 46: ...Shure U4 UHF Diversity Receiver 25D1062 TL 45 U4 Rf Audio Printed Circuit Board Legend Side 1...
Page 47: ...Shure U4 Diversity UHF Receiver 46 25D1062 TL U4 Rf Audio Printed Circuit Board Legend Side 2...