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E
1999, Shure Incorporated
Printed in U.S.A.
25D1062 (AG)
Service Manual
25D1062 (AG)
U4D Dual Diversity UHF Receiver
General
Characteristics
The Shure Model U4D Dual Diversity UHF Receiver is a microprocessor con-
trolled dual diversity receiver operating in the UHF frequency range. This product
is intended for use in high-end installed sound, rental, and concert sound mar-
kets. Different frequency variations are available in various countries.
Controls and Connectors
5
15
14
18
13
16 17
17
18
16
19
15
7
1
2
3
5
6
8
9 10 11
12
4
7
1
2
3
6
8
4
1.
MENU Button
2.
SELECT Button
3.
RF Level Indicators
4.
AUDIO Level Indicators
5.
Programmable Display
6.
+ Button
7.
– Button
8.
Volume Control
9.
Headphone Monitor Volume Control
10. Headphone Monitor Status
11. Headphone Input Connector
12. POWER On/Off Switch
13. Power Input Connector
14. Power Output Connector
15. Antenna Input Connectors
16. HIGH Z (Unbalanced) Output Connector
17. Mic/Line Slide Switch
18. LOW Z (Balanced) Output Connector
19. Networking Interface
Figure 1.
U4D Receiver Controls and Connectors
Service Note: Shure recommends that all service procedures be performed by a Factory-Authorized
Service Center or that the product be returned directly to Shure Brothers Inc.
Licensing: Operation may require a user license. Frequency or power-output modifications may
violate this product’s approvals. Contact your country’s communications authorities.
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...