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Crown PIP-ISO Reference Manual

Crown pip-iso input processors: reference guide
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P.I.P.-ISO
ISO
CH-2 INPUT
Programmable
Input Processor (P.I.P.)
E106377
®
Applies only to North
American units.
+
–
—WARNING—
THIS P.I.P. PROVIDES FULL ISOLATION
FOR ISO-MODIFIED AMPLIFIERS ONLY!
DO NOT CONNECT THE OUTPUT GROUND
LUG TO THE INPUT COMMON OR CHASSIS
GROUND. REFER TO P.I.P.–ISO OWNER'S
MANUAL FOR FURTHER INFORMATION.
© 1997 by Crown International, Inc., P.O. Box 1000,
Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294-
8000. Crown
Professional Audio Division of Crown International, Inc.
Trademark Notice: Com-Tech
®
Macro-Tech
Crown International, Inc. Other trademarks are the
property of their respective owners.
P.I.P. modules are produced by the
®
and P.I.P.
are registered trademarks of
CH-1 INPUT
+
–
®
, Crown
®
, Amcron
125354-1
®
,
10/97

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Summary of Contents for Crown PIP-ISO

  • Page 1 P.I.P.-ISO CH-2 INPUT – Programmable Input Processor (P.I.P.) © 1997 by Crown International, Inc., P.O. Box 1000, E106377 Elkhart, Indiana 46515-1000 U.S.A. Telephone: 219-294- 8000. Crown Professional Audio Division of Crown International, Inc. Trademark Notice: Com-Tech ® Macro-Tech Crown International, Inc. Other trademarks are the Applies only to North property of their respective owners.
  • Page 2 P.I.P.-ISO Page 2...
  • Page 3 Fig. 1.1 P.I.P.-ISO ISO . (It is also possible to iso- modify a Macro-Tech plifier but the procedure is differ- ent. Contact the Crown Technical Support Group for more informa- tion, if required, at 219/294-8200 or 800/342-6939.) An iso-modified amplifier with a P.I.P.-ISO has completely isolated...
  • Page 4 subsonics or low frequencies and a RFI (Radio Frequency Interference) filter to attenuate ultrasonic frequen- cies. You should find the following items when you unpack: P.I.P.-ISO module Two 8-32 Phillips Machine Screws Two Lock Washers Two Quick-Disconnect Barrier Blocks This Owner’s Manual One ISO-MOD KIT containing: One Isolation Network One P.I.P.

  • Page 5: Balanced Input

    P.I.P.-ISO Fig. 2.2 Bottom View Fig. 2.3 Side View 2 Facilities A. Balanced Input With these special quick-connect barrier-block connectors, it’s quick and easy to attach each in- put cable with just three screws. Once the cable is attached, the connector can be quickly un- plugged and, if desired, moved to a different amplifier.

  • Page 6: Installation Procedures

    P.I.P. -compatible amplifier but it will only provide output isolation with an amplifier that has been ISO-MODIFIED. Only a Crown-authorized service technician should attempt to modify an amplifier. Instructions for iso-modifying Com-Tech ampli- fiers are included in each ISO- MOD KIT.
  • Page 7 (see Figure 3.2). PIP2 Amplifiers: (Requires a PIP2 input adaptor. Crown part number Q43528-1.) Connect the PIP2 input adapter to the two input cables of the amplifier (see Figure 3.3). Notice that the PIP2 input adapter should be positioned with the P.I.P.
  • Page 8 Remember: Crown is not liable for any damage resulting from over- driving other components in your sound system. Figure 3.5 shows how to wire a bal- anced and unbalanced source or daisy-chain output to the barrier block connectors. Important: If the amplifier is used in either Bridged-Mono or Parallel- –...

  • Page 9: Specifications

    P.I.P.-ISO E106377 ® Applies only to North American units. 4 Specifications Note: All specifications referenced to a 0.775 V input signal. Signal to Noise: Better than –90 dB (equivalent input noise) 20 Hz to 20 kHz. Common Mode Rejection: 85 dB at 1 kHz;...