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Audioaccess PX-603 Preliminary Service Manual

Multi-room expander
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Download this manual See also: Installation Manual
AUDIOACCESS
PX-603
MULTI-ROOM EXPANDER
PRELIMINARY SERVICE MANUAL
Harman Consumer Group
250 Crossways Park Dr.
Woodbury, New York 11797

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Summary of Contents for Audioaccess PX-603

  • Page 1 AUDIOACCESS PX-603 MULTI-ROOM EXPANDER PRELIMINARY SERVICE MANUAL Harman Consumer Group 250 Crossways Park Dr. Woodbury, New York 11797...

  • Page 31: Troubleshooting

    TROUBLESHOOTING GUIDE MARCH 9, 2000 Madrigal Audio Laboratories P.O. Box 781 Middletown, CT 06457-0781 # XXXXXXX (860) 346-0896 FAX (860) 347-6251...
  • Page 32 [TITLE] MARCH 9, 2000 [PART NUMBER] AUDIOACCESS TROUBLE SHOOTING GUIDE Isolation of individual components is the key to successful system diagnostics The vast majority of system failures in the field are due to installation difficulties and not component failure. Although easy to install and program, a small installation mistake such as a keypad not terminated correctly, may cause a failure that affects overall system operation.
  • Page 33 KP3 keypad does not Check data bus wiring. Data wires are 6 conductor and must be function. home run to PX-603. This is a one to one connection. Is the PX-603 connected to the Data Insure PX-603 data bus connection bus of the PX-600? integrity to PX-600.
  • Page 34 Use program screen in Zone or Room mode to identify active zone. Check Speaker continuity. PX-612 – min. 4 ohms load, PX-603 min. 8 ohm load. MRX – min. 4 ohm load. Do not fall below rated impedance for amplifiers.

  • Page 35: System Related

    Check for DC offset at source inputs. There should be no DC voltage coming from your source. Is the Audioaccess system used in conjunction with a local system? – Disconnect the local system – if the IE: source sharing.
  • Page 36 PX-600 main fuse blown Check for source input DC offset. Change or repair source. Check correct wall voltage. Connect to 110VAC. No power on MRX Does the AC relay click on power Change relay. switched outlets. Audioaccess Trouble Shooting Page 6...
  • Page 37 Check data bus wiring. Make sure Correctly connect wiring. PX-603 is connected to PX-600. PX-600 software to work w/ PX-603 is Check PX-600 software Ver. 2.04 or higher. PX-603 KPS keypad Check DIP Switch settings on KPS or...
  • Page 38 Unit is always in stand-by Set switches to correct system, zone, Check DIP switch settings. and room address on PX-603 (and KPS if used). Check Data bus connection. Insure correct connection and polarity to data bus. When using KP3 keypads a 6- conductor wire must be home run.
  • Page 39 PX-612 LED indicator Is there a cable system attached to Disconnect cable. If the problem goes light always stays Green. the Audioaccess controller? away then use a ground loop isolator in IE: Amp is always ON line with the cable input feed.

  • Page 40: If All Else Fails

    A data reset should be done before sending units to Audioaccess service. If the problem you encounter is not in this list or you are unsure of how to completely diagnose the system please call our Customer Support at 888-691-4171 or fax 860-346-1540.

  • Page 51: Parts Cross-Reference

    610-2712-001 EPROM BLANK, 27C512 610-1101-000 EPROM, VERSION 1.1 PROGRAMMED 640-3000-150 FILTER CAP, 15000uF @ 35V 720-2500-010 FOOT SNAP IN GOLD 760-4603-003-B FRONT PANEL, PX-603 664-2204-000 FUSE, 5X20mm, 4A, SB 664-2220-150 FUSE, PICO, 15A 680-2000-000 HEATSINK, TO-220 605-2202-138 IC, 74HC138, DECODER...
  • Page 52 RES/IND, 1.0uH W/ 10OHM CF, 2W, 5% 745-1000-003 SW, 3POS DIP 745-1000-008 SW, 8POS, DIP 745-1000-203 SW, DPDT, PC ROCKER 625-3000-030-A TRANSFORMER, PX-603, 120V 624-0006-000 TRANSISTOR, MPSA06 NPN, TO-92 624-0056-000 TRANSISTOR, MPSA56 PNP, TO-92 644-1000-107 TRANSORB, 5V, 1.5KE6.8 Page 2...
  • Page 53 PX603 PARTS LIST 800-3160-000-00 600/612/603 BOX 805-3000-007 600/612/603 FOAM SET 610-1101-000 ICS DIG PROG EPROM PX-603 V1.01 610-1102-000 ICS DIG PROG EPROM PX-603 V1.02 PX-603SW1.02 AA PX-603 V1.02SW FIELD UPDATE KIT...

  • Page 54: Identifying Software

    PX-700 systems where the PX-603 is connected to the PX-700 during PX-700 programming. This condition can be avoided in PX-700 / PX-603 systems with older software if the PX-603 is not connected to the PX-700 during Programming as described in Tech Bulletin # A0003 –...
  • Page 55 Page 2 of 2 RS-232 The following RS-232 controller commands would cause this condition when sent by an RS-232 controller. The software in the PX-603 should be updated to v1.02 in systems that are using Controller external RS-232 devices. Commands...
  • Page 56 Page 1 of 1 OVERVIEW The KP3 three button keypad is exclusively used with the Audioaccess PX-603 multi-room expander. This keypad uses a six conductor (24AWG) wire with a one to one style connection using RJ11 modular plugs. WIRING THE KP3 KEYPAD TO THE PX-603 ROOM EXPANDER The wire is homerun between the keypad and the PX-603.
  • Page 57 Overview It has come to our attention that a PX-603 expansion room volume cannot be set when a PX-603 is used in a PX- 700 system containing v1.1 firmware. A new soon to be released version of the Installation Manager (IM) v2.0.1.2 will add a feature to set the PX-603 Expansion Room turn on volume.
  • Page 58 STEP 3: Set Expansion Room Level. a. Go to the Keypad that is addressed to the PX-603 expansion room you wish to set. b. Turn the Room ON from the keypad and lower the volume to the desired “Turn On” level.

  • Page 59: Eprom Replacement

    PX-603 EPROM Replacement...
  • Page 60 Table of Contents ....................1 VERVIEW CAUTIONS! B ..............1 EFORE EGINNING ....................1 OOLS EQUIRED EPROM.................1 EPLACING THE EPROM L ..................2 OCATION ................3 ONTACTING UPPORT Table of Contents PX-603 EPROM Replacement...

  • Page 61: Tools Required

    EPROM Puller Replacing the EPROM 1. Turn OFF the Main Power switch on the back of the PX-603 and unplug the unit. 2. Disconnect any source equipment from the unit. 3. Remove the top cover using a #2 Phillips screwdriver.
  • Page 62 EPROM Location Diagram 1 – EPROM Location Keypad Dipswitches Microprocessor Software EPROM Location U711 Heat Sink Front of PX-603 Page 2 PX-603 EPROM Replacement...
  • Page 63 Turn on PX-603 Power Switch while observing the front panel LED. It should initially be Yellow/Amber flicker Green and then stay Yellow/Amber. Press the button on the KP3. The Red LED on the KP3 should light, the Front Panel light of the PX-603 should change to Green and you should now hear your Audio Source.
  • Page 66 MADRIGAL AUDIO LABS Procedure No: Revision: Title: PX-603 TESTING PROCEDURE XII. Move Audio Inputs, Speaker Outputs and KP3 to #2 and #3 in succession and repeat steps IX through XI. MP10.01-F1...