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AUDIOACCESS
PX-603
MULTI-ROOM EXPANDER
PRELIMINARY SERVICE MANUAL
Harman Consumer Group
250 Crossways Park Dr.
Woodbury, New York 11797
TROUBLESHOOTING
GUIDE
MARCH 9, 2000
Madrigal Audio Laboratories
P.O. Box 781
Middletown, CT 06457-0781
(860) 346-0896 FAX (860) 347-6251 # XXXXXXX
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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. Most system failures, however, are not catastrophic. Once
problems are isolated through the process of elimination, most system malfunctions may be repaired in the field.
Some will require reprogramming or terminations, some may require replacing components in the field, while
others will need factory service. The following guide lists some specific problem descriptions, describes some
basic diagnostics, and offers some common solutions.
Note - For any control related problems, first disconnect the keypad bus from the PX-
600. If the PX-600 operates normally through the front panel, there is a problem with the
keypads or their connections. If the PX-600 does not operate with keypads
disconnected, their may be a problem in the PX-600.
KEYPAD RELATED
Problem Encountered Find the problem component solution
Keypad locked up - lights Unplug (isolate) all keypad wires Set DIP switches for correct zone,
come on but no functions. from control unit and test unit room, & system.
functions from front panel.
System locked up Check Keypad (data bus) wire insulation
Test each keypad on system is not inserted in between the wire and
Zone or system locks up individually. the connectors.
after ON button is
pressed. Test using an alternate KPS Insure data bus wires polarity.
addressed for the same zone.
Intermittent keypad lock Replace KPS Processor assembly.
up or control. For alternate front panel control of
zones use the "ROOM" button for Check front panel Volume knob is not
MRX and "ZONE" button on PX-600 rubbing on Motor Pot bracket. Gently
th
programmer. When zone # is called pull out knob 1/16 ".
up the front panel controls that zone.
Keypad has no functions On back panel of head unit. Check Replace bus fuse w/ 1.5 A slo-blo.
and no lights bus fuse - Use ohmmeter to
measure for 0 ohms. Check data bus wires termination and
polarity.
Check bus voltage -Use voltmeter
across pin 1 & 4 DC voltage is Replace KPS Processor assembly.
unregulated and should be between
8 13 volts DC.
Slow reaction time from Check KPS terminator switches. Change to opposite direction and test
keypad, front panel or RT- system speed.
A remote.
Check wire terminations. Make sure there are no cut or frayed
wires, that there are no intermittent
shorts in wiring.
Check for IR interference (Ambient Disable IR on keypad - DIP switch 9 UP.
light source)
Audioaccess Trouble Shooting Page 2
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MARCH 9, 2000 [PART NUMBER]
Check for other high current draw Use dedicated electric circuit.
electrical components on the same
circuit. IE: Refrigerator, Large
amplifiers, etc.
Keypad turns on but there This usually indicates the wrong zone Check DIP switch address settings and
is Audio in the wrong zone or system address on the KPS make sure the proper zone, system,
or more than one zone. keypad and room codes are set.
Change wiring to correct amplifier input.
Preamp output is connected to the
wrong channels on the amplifier.
Test Zone again but do not issue a
All on group is active. press and hold command at turn on
from keypad.
Check PX-600 back panel outputs. Variable audio comes out of the preamp
section and NOT the zone outputs. All
zone outputs become HOT when any
zone is active.
LED source indicator Check DIP Switch settings. Use correct settings for system and
changes on keypad but zone.
audio does not follow Check data bus wiring.
change. Correctly connect wiring.
IR input on keypad does Check position of DIP Switch 9 To enable IR put DIP switch 9 in the
not respond to commands down position.
issued from hand held IR
remote. Does the remote have good Replace batteries in remote.
batteries?
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.
KP3 keypad lights up but Check DIP switch settings on back Use correct settings for system and
controls the wrong room. panel of PX-603 zone and room.
Check data bus wiring. Correctly connect wiring.
Check that KP3 bus wire is directly PX-603 has provision for attaching up to
connected to PX-603 and plugged 3 KP3 keypads that are port dependent.
into the correct room port.
PX-600 software to work w/ PX-603 is
Check Software of PX-600. Ver. 2.04 or higher.
Audioaccess Trouble Shooting Page 3
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MARCH 9, 2000 [PART NUMBER]
AUDIO RELATED
Problem Encountered Find the problem component solution
No Audio in one zone Identify Zone. Turn all zones off but the problem zone.
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.
Check Preamp output.
Is there preamp line level signal. If so,
check amp channel.
Check amp outputs. What type of
Amp is powering this zone? Is it Feed a direct signal into the amp If it
signal sensing turn on/off? does not power up look to the amp for
the problem.
Check Fuse
Replace fuse with same value.
Source dependent? - Check source
input continuity and line level signal. Change source or it's wiring connection.
No Audio in any zone Amplifier ON? Insure AC power to Amp. Is not
Is the amp plugged into a switched switched unless system is designed to
outlet that is not on? use installed amp in this fashion.
Check main power fuse in Amp and Replace fuse with same value.
Preamp.
Audio always very loud in Check PX-600 back panel outputs. Variable audio comes out of the preamp
all zones. Sources can be section and NOT the zone outputs.
controlled but volume can Use preamp output not zone outputs.
not.
Audio drops out then What volume level does this occur? With PX-612 check by slowly adjusting
returns the volume level to a softer point. Use
Does this happen when music has the Zone button on PX-600 programmer
soft passages in it? to see what the actual level is. If the
threshold is below "10" the amp needs
Does it always happen at the same to be modified.
volume level?
Is it source dependent? Check sources output for drop out.
Repair or replace source.
Cross talk between inputs Is the Audioaccess system used in Disconnect the local system if the
and zones. conjunction with a local system? problem is not present use a ground
IE: source sharing. loop isolator in line with the local system
feed.
Some MRX units inherently have this
problem. How to minimize. Install an SMM (Speaker Mute Module).
In MRX, zones 1&4, 2&3, 5&6 are
grounded together. If these pairs are the
frequently used zones, reallocate
combinations so that frequently used
zones are not the pairs described.
Hum in speakers Is there a cable system integrated Remove the cable connection. If the
Audioaccess Trouble Shooting Page 4
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MARCH 9, 2000 [PART NUMBER]
with this unit? problem is not present then use an IN-
LINE ground loop isolator or make your
own using 2pcs. of 75 to 300 ohm
transformers back to back on the 300-
ohm side. This effectively makes an
isolation transformer.
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. problem is not present use a ground
loop isolator in line with the local system
feed.
Popping sound in Check terminations for bad Terminate wires correctly.
speakers associated connections and loose wiring.
with switching lights,
motors, etc. Cabling routed too close to AC Re-rout cables away from AC wiring.
wiring, dimmers or electric motors.
Systems connected to same AC Use different AC circuit for either the
circuit as electromechanical devices system or electromechanical device.
causing noise on system.
SYSTEM RELATED
Problem Encountered Find the problem component solution
System or zone turns on Is there an extra ordinary amount of Disable IR receiver in KPS keypad by
by itself. light shining on any keypad or the putting DIP switch 9 in the UP position.
front panel of the system? If it is coming in through the front panel
PX-600 use a pigtailed 1/8" mono jack
and plug it into the IR input on the back
panel. MRX use a piece of Black tape to
cover the IR receiver.
Check for stuck button on keypad. Make sure buttons do not stick in the
down position.
If using an outboard control system, Disconnect control system and test. If
check parameters of control system. operational, the problem lies in the
Does it have functions for timed control system
operations?
MRX tuner has little or no Is the antenna connected? Connect antenna.
reception.
Powered Antenna? Make sure powered unit is supplied with
the correct voltage (AC or DC).
Check for Proper tuner set up. US frequencies should be set at .2MHz.
Data Reset Will erase all programming.
Front Panel "talk back" Is there an extra ordinary amount of Front panels PX-600 use a pigtailed
LED lit or blinking no light shining on the front panel? 1/8" mono jack and plug it into the IR
intentional input. input on the back panel.
Use programmer screen to check
status identifiers: MRX use a piece of Black tape to cover
Audioaccess Trouble Shooting Page 5
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I = Front Panel is receiving IR. the IR receiver.
K = Information from A keypad is
being received at head unit. Either a
button press or receiving IR.
P = head unit is send IR to sources.
Front Panel LCD (MRX) LCD intensity potentiometer needs Remove the top cover of the MRX and
has no font adjustment. find the small hole directly behind and to
the right of the LCD screen. Use a small
#1 blade screwdriver to gently move the
potentiometer till the font is visible on
the LCD screen.
Front Panel LCD (MRX) Check ribbon connections to front Make sure there is a complete
has no back light or is panel. connection and there are no shorted
split wires inside the MRX chassis.
Programmer LCD (PX- LCD intensity potentiometer needs Remove the top cover of the
600) has no font adjustment. programmer and find the only
potentiometer on this circuit. Use a
small #1 blade screwdriver to gently
move the potentiometer till the font is
visible on the LCD screen.
Programmer LCD (PX- Check ribbon connections to front Make sure there is a complete
600) has no back light or panel connection and there are no shorted
is split wires or broken connectors.
Characters remain on After PX-connect or MRX-connect If this happens at any other time call
LCD after back light goes this is normal. Customer Support
off.
Tuner frequency Check that tuner set up is set for US US frequencies should be set at .2MHz.
displayed on LCD (MRX) standards.
does not match station Use the tuner preset button 1 and
being listed to. MUTE to activate main menu.
PX-600 or MRX Remove keypads. Test from front panel.
constantly resets.
If the problem still exists then it is an Change RS-485 Transceiver.
RS-485 Transceiver failure.
If the problem stops then look for Put one Keypad on the data bus at a
failed RS-485 transceivers on time until the bad keypad is found.
keypads. Replace KPS processor board or entire
keypad.
MRX Overheats Does the fan run? Remove cover and find the power wire
to the fan. Use a multi meter to see if
the fan's windings are still in tact. NO-
replace fan.
Is the unit installed in cabinet w/no
ventilation? Ventilate cabinet.
PX-600 Overheats Is the unit installed in cabinet w/no Ventilate cabinet.
ventilation?
MRX main fuse blown Check for shorted wiring. Repair faulty wiring.
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. up?
Audioaccess Trouble Shooting Page 6
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Change fuse w/ correct value.
Check fuse on Power supply.
No power on PX-600 Does the AC relay click on power Change relay.
switched outlet. up?
Change fuse w/ same value.
Check external fuse for Power
supply. Install a jumper wire 24 ga. at location
F1301 To replace this fuse.
Check internal fuse link at location
F1301 near power supply.
Problems encountered Check that the IC is seated correctly Reinstall software correctly.
after changing software. and installed in the correct direction. Perform DATA reset to system.
Follow proper Electrostatic Discharge Make sure you are grounded to prevent
procedures while installing software. ESD damage.
IR emitter blows Check to make sure the emitter is If using the ALL output on PX-600 then
plugged into an emitter port and not remove cover and set jumper to emitter
the All or Blaster port. @ location P120. If using an MRX
Blaster output then install in line with the
emitter a 100Ohm ¼ watt 5 %resistor to
shunt the voltage.
MRX fan always runs. Check thermo-couple on amplifier If always closed then replace.
heat sink.
MRX fan never runs. Check thermo-couple on amplifier If always open when hot replace.
heat sink.
Check fan windings. Use an ohmmeter to check for
continuity. If open replace fan.
PX-603 RELATED
Problem Encountered Find the problem component solution
PX-603 room does not Check DIP Switch settings on KPS or Use correct settings for system, zone
come on. PX-603. and room.
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 Use correct settings for system, zone
controls main room (0) PX-603. and room.
and not the attached
room. Check data bus wiring. Correctly connect wiring.
Check PX-600 software PX-600 software to work w/ PX-603 is
Ver. 2.04 or higher.
PX-603 has no output. Check feed to PX-603 from PX-600. Use Zone output from PX-600.
Check continuity of interconnects from
PX-600 to PX-603.
Check speaker connection. Connect speaker.
Check speaker continuity. Replace speaker or wiring as
Audioaccess Trouble Shooting Page 7
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necessary.
Check AC power.
The PX-603 requires constant power
and should not be plugged into the PX-
600 switched outlet.
PX-603 LED indicator Check AC line voltage. Requires 110VAC constant.
light always stays RED.
Unit is in protect mode. Check that speakers are not shorted. No lower than 8 Ohms per channel.
Check data bus connection. Connect data bus with correct polarity.
PX-603 LED indicator Check line level signal feed Insure continuity to PX-603 input.
light always stays Yellow. continuity.
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.
PX-603 LED indicator Check DIP switch settings. Set switches to correct system, zone,
light always stays Green. and room address on PX-603 (and KPS
Unit is always ON. 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.
Check ALL ON group settings.
All On commands are set in "Group set
up" for single systems and in "Multi set
up" in multi configurations.
Was the room turned on by issuing
an "All On" command? Issue "ON" command with momentary
press. To issue an All On command
press and hold the ON button from a
keypad that is not currently on.
Audioaccess Trouble Shooting Page 8
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PX-612 RELATED
Problem Encountered Find the problem component solution
PX-612 LED indicator Check AC line voltage. Requires 110VAC constant.
light always stays RED.
Amp is in protect mode. Check that speakers are not shorted No lower than 4 Ohms per channel.
and that the impedance is correct.
Check for DC offset for sources or Change or repair source.
Preamp. Change or repair Preamp.
Check for overheating. Ventilate cabinet.
PX-612 LED indicator Check input signal from Preamp. Feed a direct signal to Amplifier such as
light always stays Yellow. from a CD player to see if it turns on
IE: unit does not come out and off with signal sensing.
of stand-by.
Check continuity of cabling feeding Change or repair defective cable.
amp.
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.
Is there a local system sharing Disconnect wiring feeding the local
sources with the system? Some system. If problem goes away use an in
receivers short the input to ground line (RCA style) ground loop isolator to
when in the stand-by condition. bring the signal to the local system.
MULTI SYSTEM RELATED
Problem Encountered Find the problem component solution
Subsequent units in multi PX-connect or MRX-connect After running the connect sequence be
system (other than sequence was not performed sure to press the "ALL OFF" button on
system 1) always jump correctly. front panels from the highest system
back to FM after another number to the lowest system number.
source key has been
pressed.
Subsequent units in multi Check Data bus connection. Connect with correct polarity while not
system do not respond to connecting the RED (or power) wire
any commands other than between systems.
front panel.
Check keypad connections. Make sure keypads are correctly
connected for polarity.
Check bus fuse on back panel.
Voltage between pins 1 & 4 should Change fuse w/ 1.5 amp slo-blo
be between 8 to 13 VDC.
Audioaccess Trouble Shooting Page 9
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MARCH 9, 2000 [PART NUMBER]
MCI RELATED
Problem Encountered Find the problem component solution
MCI is not passing Check Green LED is flashing when Issue a command fro0m a keypad you
commands commands are sent. should see the Green LED flash.
Check Data bus connection. Connect w/ correct polarity.
Check that MCI is receiving power The RED indicator LED should be lit if
from Data bus. there is power at the MCI. Voltage
between pins 1 & 4 should read
between 8 to 13VDC.
Check outboard control systems Insure correct connection and polarity
connection and polarity. (RS-232) from RS-232 connection.
MCI Red LED does not Check Data bus connection. Connect w/ correct polarity.
light
Check data bus voltage at head unit. The RED indicator LED should be lit if
there is power at the MCI. Voltage
between pins 1 & 4 should read
between 8 to 13VDC.
PDM RELATED
Problem Encountered Find the problem component solution
Page Doorbell Module Check jumper settings. Set jumpers for correct triggering. See
chimes constantly. top cover of PDM
Check trigger wiring. Is trigger wire connected correctly at
both PDM and trigger device location.
Continuity, shorts?
Insure door station is powered. If using one Panasonic door station,
only the trigger input used should be
configured for this device. The other
jumpers should be set for contact
closure.
IF ALL ELSE FAILS
Source control and audio problems can sometimes be fixed by performing a data reset. System
programming will lost but the problem may be resolved. 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. We will be glad to help you find the problem.
Audioaccess Trouble Shooting Page 10
PX-603
PX-603
PARTS CROSS-REFERENCE
DESCRIPTION
667-0000-004 2X2 SPK, TERMINATOR
935-0603-200-C0 ASS'Y MAIN BOARD W/ HEATSINKS
620-3000-000 BRIDGE RECTIFIER, 1A
620-3100-000 BRIDGE RECTIFIER, 25A
640-4900-102 CAP, AX, CER, .001uF, 50V
640-7000-001 CAP, AX, CER, 1uF, 50V
640-4900-220 CAP, AX, CER, 220pF 200V
640-4900-022 CAP, AX, CER, 22pF, 200V
640-4900-033 CAP, AX, CER, 33pF, 200V
135-30147-00 CAP, AX, CER, 470pF, 100V
145-34433-00 CAP, CER, RAD, .33uF, 100V
640-2800-048 140-42247-00 200077 CAP, ELEC, 4.7uF-NPO, 25V
640-2800-100 CAP, ELEC, RAD, 10uF, 35V
640-3000-150 CAP, ELEC, RAD, 15000uF, 35V
640-2900-220 CAP, ELEC, RAD, 2200uF, 25V
143-68410-00 CAP, X-RATED, X.100uF, 250V
640-2800-011 200083 CAP.ELEC, RAD, 100uF, 35V
641-2700-330 COP, POLY, RAD, .33uF, 100V
631-2207-011 CRYSTAL, 11.0592 MHZ
780-0600-051 END CAP, LEFT
780-0600-050 END CAP, RIGHT
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
605-2213-541 IC, 74HC541, OCTAL BUFFER, TRI-STATE
605-2213-573 IC, 74HC573N, LATCH, TRI-STATE
605-2213-575 IC, 74HC574N, FLIP FLOP, TRI-STATE
605-2213-008 IC, 78HC08, QUAD, 2-IN, AND GATE
605-4052-000 IC, CD4052, MLTIPLXR / DEMLTIPLXR
605-0353-000 IC, LF353, OP-AMP
610-2401-000 IC, LH5168D-10L,STATIC CMOS RAM
605-1973-000 IC, LM1973, DIG ATTENUATOR
605-0339-000 IC, LM339, QUAD COMPARATOR
605-3876-000 IC, LM3876, 40W AUDIO PWR AMP
605-0485-008 IC, LTC485CN8, 484 DRIVER
605-7813-000 IC, P80C31-BH, uP WATCHDOG TIMER
606-8031-001 IC, X24C01P, EEPROM
621-2007-000 LED, GREEN
621-2009-000 LED, YEL
645-1000-100 MOV, 400V
750-2800-000-CO PCB, MAIN BOARD
664-2300-020 POLYSWITCH, RXE020
760-4603-005-A PX-603, TOP COVER
Page 1
667-3600-306 PX-603 RA, MOD, JACK
667-3000-400 RCA JACK, 2X2
633-3400-005 REGULATOR, 78L05, 5V, TO-92
633-7905-000 REGULATOR, 79L05, -5V, TO-92
633-7805-003 REGULATOR, LM7805, 5V
633-7812-002 REGULATOR, LM7812, +12 V, 1A
633-7912-002 REGULATOR, LM7912, -12V, 1A
651-0030-100 RES, CARBON FILM, 10K OHM, 1/8W, 5%
651-0010-120 RES, CARBON FILM, 120 OHM, 1/8W, 5%
650-2348-005 RES, CARBON FILM, 4.7 OHM, 1W, 5%
654-0040-100 RES, METAL FILM, 100K OHM, 1/8W, 1%
654-0020-100 RES, METAL FILM, 1K OHM, 1/8W, 1%
651-0000-000 RES, METAL WIRE, 0 OHM, 1/8W
654-0030-100 RES, MF, 10.0K OHM, 1/8W, 1%
654-0030-110 RES, MF, 11.0K OHM, 1/8W, 1%
654-0020-249 RES, MF, 2.49K OHM, 1/8W, 1%
654-0020-240 RES, MF, 2.4K OHM, 1/8W, 1%
654-0010-200 RES, MF, 200 OHM, 1/8W, 1%
654-0020-324 RES, MF, 3.24K OHM, 1/8W, 1%
654-0010-681 RES, MF, 681 OHM, 1/8W, 1%
654-0020-910 RES, MF, 9.1K OHM, 1/8W, 1%
654-0020-124 RES, MF,1.24K OHM, 1/8W, 1%
656-2237-100 RES, SIP, 9, 10K
650-1000-001 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
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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
JANUARY 23, 2001 No.A0101
Madrigal Audio Laboratories, Inc.
TECHNICAL BULLETIN
2081 South Main Street
Middletown, CT 06457.07081
Phone: 860.346.0896
Fax: 860.346.1540
PX-603 Software v1.02
Page 1 of 2
Overview
Madrigal has released software v1.02 for the Audioaccess PX-603. This new software corrects erratic
behavior of a PX-603 room after receiving a STATUS REQUEST command from the PX-700 or
outboard RS-232 control system.
This condition does not occur in PX-600/PX-603 or PX-700/PX-603 during normal KPS / KP3
operation.
See Condition Below for More Details.
Identifying Software
Release Date 5/1/00 Starting Serial Number 603001421
Obtaining The software in the PX-603 is contained on a pre-programmed EPROM available from
New Software Audioaccess Technical Support. Please have part number and serial number available when
ordering.
Software v1.02 Part # PX-603SW1.02
Audioaccess Technical Services 888-691-4171
Condition Updates
Condition PX-603 rooms function erratically after receiving status request command
Example · Sources taking a long time to switch
· Sources do not switch
· Volume control inoperative
· Volume control slow to respond
Solution This condition has been corrected in v1.02.
This condition will only occur under certain system setup parameters. Systems meeting the
following parameters should have the PX-603 software upgraded.
System
o PX-600 or PX-700 systems controlled by an external RS-232 control device.
Parameters
o 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
PX-700 Programming Notes.
PX-603 Software v1.02-A0101
WB-DW CR / FB-DW
JANUARY 23, 2001 No.A0101
TECHNICAL BULLETIN PX-603 Software v1.02
Page 2 of 2
RS-232 The following RS-232 controller commands would cause this condition when sent by an RS-232
Controller controller. The software in the PX-603 should be updated to v1.02 in systems that are using
Commands external RS-232 devices.
n PX-603 ROOM STATUS REQUEST hex value 63 Device type 06
n MAIN ROOM STATUS REQUEST hex value 63 Device type 04
PX-700 The following commands sent by the PX-700 would cause the erratic behavior when a PX-603 is
Commands connected to a PX-700 while programming the PX-700.
n Downloading the installation into a PX-700
n Learning IR into the installation manager IR library
n Playing IR from the installation manager IR library
n Pressing REFRESH while the installation manager virtual installation is being used
PX-603 Software v1.02-A0101
Madrigal Audio Laboratories
P.O. Box 781
Middletown, CT 06457-0781 Technical Services
Information Sheet
(860) 346-0896
FAX (860) 347-6251
KP3 WIRING TO PX-603
JULY 30, 1998 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.
Note : Pre-terminated off the shelf phone style wire will not work.
Pre-terminated cords are internally wired with a cross connection. If used, one end of the cable must have the connector cut
off and then re-terminated in a one to one connection. To determine if your wiring is correct, look at both connectors together.
The visible color code should be identical from left to right.
Installing the Connectors
· Terminate wire ends with RJ11 six pin, six conductor modular plugs.
Standard six conductor wire is color coded in: orange
green
blue
green with white
white with green
orange with white
white with orange
blue with white
white with blue
· With the squeeze tab of the connector pointing downward and the pin end of the connector pointing away from you,
crimp the plug left to right with the green, orange and blue pairs. Remember both ends must be identical.
Figure 1 taken from the PX-603 manual.
If you have any questions about this or any other Audioaccess related items please contact the Audioaccess Customer Support
Department at 888-691-4171.
KP3 Wiring Page 1
DOC# AA73098 WB-TS / FB-DW
FEBRUARY 7, 2002 No.A0201
Madrigal Audio Laboratories, Inc.
TECHNICAL BULLETIN
2081 South Main Street
Middletown, CT 06457.07081
Phone: 860.346.0896
Fax: 860.346.1540
PX-603 TURN ON VOLUME
Page 1 of 2
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. If the older v1.1.0.5 IM version is used, the
following steps will allow for setting of a PX-603 Expansion Room turn on volume.
Condition Summary
The procedure formally used to set a PX -603 expansion room TURN ON volume does not work with PX-700
firmware v1.1. This procedure was normally to turn on the room, set to the desired level, turn the room OFF and
the HOLD the VOLUME UP and VOLUME DOWN buttons which is mute. In a PX-700 system containing v1.1
firmware, this mute command is not sent and must be sent by other means. The procedure below allows for setup
of the Installation Manager v1.1.0.5 to be used to send the mute command. Installation Manager v2.0.1.2 includes
the ability to set the turn on level of any expansion room.
Software Versions
While this condition affects the PX -603 it is affected by software within other units. The table below shows the
software from these units that will experience the turn on volume not being set.
P X-603 any
P X-700 v1.1
Installation Manager v1.1.0.5
NOTE: A new version of the Installation Manager v2.0.1.2 allows for the turn on volume of a PX-603 expansion
room to be set from the Installation Manager. Once you download the new version of the Installation Manager, you
will no longer need to perform this procedure.
Setting the Turn On Volume
STEP 1: Reconfiguring Installation Manager for Developer Mode
In order to send the needed MUTE command the Installation Manager must be set to Developer Mode. This mode
is a special mode within the Installation Manager that is not normally used and is set in the Installation Managers
INI file. Follow these steps to set the Installation Manager to Developer Mode.
a. Open NOTEPAD from the START menu within Windows. This is usually under START >
PROGRAMS > ACCESSORIES.
b. After Notepad is open, select FILE > OPEN and open the AUADIOACCESS.INI file located under
c:\Program Files\Audioaccess. To view the INI file Type: Audioaccess.INI in the file box at the
bottom of the OPEN FILE Window.
a. NOTE: If you changed the directory when the Installation Manager was installed you will find the
file in the location you choose when Installation Manger was installed.
b. Press CNTRL and HOME at the same time to place the cursor at the upper left hand corner of the
text.
PX-603 Turn On Volume
WB-CR / FB-DW
FEBRUARY 7, 2002 No.A0201
TECHNICAL BULLETIN PX-603 Turn On Volume
Page 2 of 2
c. Type in the following 2 lines exactly as shown here.
[General]
DeveloperMode=1
d. Note that there is NO SPACE between Developer and Mode, and that the =1 ends the line.
e. Save and close the file.
STEP 2: Prepare Installation Manager Program to send MUTE command.
a. After completing step 1, open the Installation Manager.
b. Select TOOLS > BUS MONITOR to open the bus monitor.
c. While in the Bus Monitor select TOOLS > SEND MESSAGE. This will allow you to send a
command to the system.
d. Set the SYSTEM, ZONE and ROOM to the room use wish to set the volume in.
e. Select Device Type : 06 Px603, and Command : F1 Mute. NOTE: If the command is not available
close the Installation Manger and repeat step 1.
f. Leave the SEND MESSGAE window open and go to STEP 3: Set Expansion Room Level.
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.
c. Press the ON button again to turn the room off.
d. Within 5 five seconds of turning the room OFF, press the SEND button on the SEND MESSAGE
Screen of the Audioaccess Installation Manager Software.
e. The desired TURN ON level is now set for that room. Repeat steps 2 and 3 for all Expansion
Rooms within the system.
PX-603 Turn On Volume
PX-603
EPROM Replacement
Table of Contents
OVERVIEW ....................................................................................................1
CAUTIONS! BEFORE BEGINNING ....................................................................1
TOOLS REQUIRED............................................................................................1
REPLACING THE EPROM.................................................................................1
EPROM LOCATION .......................................................................................2
CONTACTING TECH SUPPORT ...........................................................................3
Table of Contents PX-603 EPROM Replacement
Overview
The software for the PX-603 is contained on an EPROM located at location U711. This procedure
will allow a qualified Audioaccess dealer to replace the software EPROM in a PX-603. Please
read and understand all instructions outlined in this procedure before attempting the installation.
CAUTIONS! Before Beginning
CAUTION! Hazardous voltages inside unit. Remove AC cable from outlet before
proceeding
CAUTION! Static sensitive parts and subassemblies inside unit. Observe proper
grounding procedures before continuing.
WARNING! Be careful when handling metal as it scratches easily. Place a soft
towel under unit while doing repair.
Tools Required
o #2 Phillips Screwdriver
o 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.
4. Locate the EPROM at location U711 on the Main PCB. The EPROM is located in a socket in
front of the keypad dipswitches and to the left of the microprocessor. See Diagram 1 for
reference
5. Note the direction of the notch on the EPROM - it should be facing the front of the unit.
6. Remove the EPROM from its socket by using an IC puller.
7. Carefully place the EPROM into the socket at location U711.
NOTE: The width of the pins on the new EPROM will be a bit wider than the socket. Ensure that
all of the pins are aligned properly and that the direction of the notch is correct (it should be facing
the front of the unit).
8. Push down gently until all of the pins are well seated in the socket.
NOTE: If the above procedure is not performed correctly, the unit will not function and there is
the possibility of damage to the EPROM.
9. With the new EPROM in place, plug the unit in and turn it on. Replace the top cover.
10. You are now ready to reinstall the PX-603 into the system.
PX-603 EPROM Replacement Page 1
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
MADRIGAL AUDIO LABS
Procedure No: Revision: Title: PX-603 TESTING PROCEDURE
Prepared By: Wayne Mergel Approved By: Page 1 of 2
Purpose: The purpose of this document is to establish a procedure for testing PX-603 units.
Application: For use in the PX-603 Department
Related Documents: None Equipment Needed: 1 PX-600, 1 KPS (keypad), 1 KPT (terminator),
1 KP3 (PX-603 keypad), 1 Audio Source (i.e. CD
player)
Procedure:
I. Check PX-603 for line voltage and plug in but do not turn on.
II. Set the 3 banks of DIP Switches on the PX-603 as follows:
III. Plug Audio Source into "Audio Inputs" #1.
IV. Hook up speakers or headsets to Speaker Output #1.
V. Connect KP3 to KP-3 #1 connector.
VI. Using 3 4-wire bus cables connect the PX-603, PX-600 and the KPS to the KPS Terminator Board.
VII. Set KPS DIP Switches as follows:
VIII. Cover IR window on front of PX-600 then turn on PX-600.
IX. 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.
X. 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.
XI. Verify that you can:
a.) Control the Volume with the Arrow (up) and arrow (down),
b.) Mute Audio by pressing both (up) & (down) arrows together,
c.) Turn unit off by pressing "on" again.
MP10.01-F1
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