Printed Circuit Board Connectors; Ferrite Bead Rings; Service Illustrations; Optional Accessories - Shure Pro Master 700 Service Manual

To check LEDs, connect the cathode (notch or flat) of
the LED to the negative terminal of a 9V transistor radio bat-
tery. Connect the positive battery terminal through a 4.7k
resistor to the LED anode. Replace any LED that does not
light.
C A U T I O N
Do not check LEDs with an ohmmeter. The LEDs may
be damaged or erroneous readings may be obtained.
To check transistors, the ohmmeter should be set to the
100- or 1,000-ohm scale. Transistors and diodes must be
removed from the circuit before testing. If all conditions
in the following table are met, the transistor may be con-
sidered free of any major defect; if any of the following
conditions are not met, the transistor should be replaced.
See NOTES TO SERVICE ILLUSTRATIONS, Figure 4, for
transistor lead codes.
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OHMMETER CONNECTIONS
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"PIYs" Lead 64Minus" Lead
Emitter
Collector
Emitter
Collector
Collector Base
Base
Emitter
Base Collector
Base Emitter
'Not a significant measurement.

PRINTED CIRCUIT BOARD CONNECTORS

All printed circuit board connectors use the Molex KK
Modular Interconnection System. To replace a lead and its
associated connector contact, proceed as follows. Using a
scribe or other pointed instrument, depress the contact
through the slot at the side of the connector housing. This
will free the contact and allow it to be removed from the
rear of the connector housing. Trim a new lead so that
inch of wire appears. lnsert the trimmed lead in a new
contact (Shure Part No. 56A235 or 56A251). Crimp the
wire to the contact and solder the wire to the crimped con-
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OHMMETER READING
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Transistor PNP
Transistor NPN
High High
High High
Low
High
Low
Low High
*
Low
nection. Insert the new contact (with attached lead) in the
connector housing, pushing firmly to lock the contact.

FERRITE BEAD RINGS

All input and output connectors in the console contain
ferrite bead rings (L701-L711 and L801-L816). Be sure to
replace any ferrite bead rings removed during servicing.

SERVICE ILLUSTRATIONS

Immediately following the parts list on the pages that
follow are circuit diagrams, parts locating photographs,
and board foil drawings. Once a board has been located
through the parts location photo (Figure
on that board can be located from the corresponding parts
location photo. The function of the part is shown on the
adjacent circuit diagram. NOTE: Each circuit diagram
applies to all 700 Series consoles. Portions shown in red
only apply to Models 700 and 700E6. Further differences
are shown in notes at the bottom of each diagram.

OPTIONAL ACCESSORIES

The following optional accessories are specially de-
signed for use with the Shure 700 Series Power Consoles:
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A700C Protective Cover
A7S Console Stand

GUARANTEE

This Shure product is guaranteed in normal use to be
free from electrical and mechanical defects for a period of
one year from date of purchase. Please retain proof of
purchase date. This guarantee includes all parts and labor.
This guarantee is in lieu of any and all other guarantees or
warranties, express or implied, and there shall be no re-
covery for any consequential or incidental damages.

SHIPPING INSTRUCTIONS

Carefully repack the unit and return it prepaid to:
Shure Brothers Incorporated
Attention: Service Department
1501 West Shure Drive
Arlington Heights, Illinois 60004
If outside the United States, return the unit to your dealer
or Authorized Shure Service Center for repair. The unit
will be returned to you prepaid.
I ) , the components