AUDIOACCESS
PX-603
MULTI-ROOM EXPANDER
PRELIMINARY SERVICE MANUA L
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
[TITLE]
Problem Encountered Find the problem component solution
Keypad locked up - lights
come on but no functions.
System locked up
Zone or system locks up
after ON button is
pressed.
Intermittent keypad lock
up or control.
Keypad has no functions
and no lights
Slow reaction time from
keypad, front panel or RTA remote.
Unplug (isolate) all keypad wires
from control unit and test unit
functions from front panel.
Test each keypad on system
individually.
Test using an alternate KPS
addressed for the same zone.
For alternate front panel control of
zones use the “ROOM” button for
MRX and “ZONE” button on PX-600
programmer. When zone # is called
up the front panel controls that zone.
On back panel of head unit. Check
bus fuse - Use ohmmeter to
measure for 0 ohms.
Check bus voltage -Use voltmeter
across pin 1 & 4 – DC voltage is
unregulated and should be between
8 – 13 volts DC.
Check KPS terminator switches.
Check wire terminations.
Check for IR interference (Ambient
light source)
Set DIP switches for correct zone,
room, & system.
Check Keypad (data bus) wire insulation
is not inserted in between the wire and
the connectors.
Insure data bus wires polarity.
Replace KPS Processor assembly.
Check front panel Volume knob is not
rubbing on Motor Pot bracket. Gently
pull out knob 1/16
Replace bus fuse w/ 1.5 A slo-blo.
Check data bus wires termination and
polarity.
Replace KPS Processor assembly.
Change to opposite direction and test
system speed.
Make sure there are no cut or frayed
wires, that there are no intermittent
shorts in wiring.
Disable IR on keypad - DIP switch 9 UP.
th
”.
Audioaccess Trouble Shooting Page 2
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MARCH 9, 2000
Check for other high current draw
electrical components on the same
circuit. IE: Refrigerator, Large
amplifiers, etc.
Keypad turns on but there
is Audio in the wrong zone
or more than one zone.
This usually indicates the wrong zone
or system address on the KPS
keypad
Preamp output is connected to the
wrong channels on the amplifier.
All on group is active.
Check PX-600 back panel outputs.
LED source indicator
changes on keypad but
audio does not follow
change.
IR input on keypad does
not respond to commands
issued from hand held IR
remote.
Check DIP Switch settings.
Check data bus wiring.
Check position of DIP Switch 9
Does the remote have good
batteries?
KP3 keypad does not
function.
Check data bus wiring.
Is the PX-603 connected to the Data
bus of the PX-600?
KP3 keypad lights up but
controls the wrong room.
Check DIP switch settings on back
panel of PX-603
Check data bus wiring.
Check that KP3 bus wire is directly
connected to PX-603 and plugged
into the correct room port.
Check Software of PX-600.
[TITLE]
[PART NUMBER]
Use dedicated electric circuit.
Check DIP switch address settings and
make sure the proper zone, system,
and room codes are set.
Change wiring to correct amplifier input.
Test Zone again but do not issue a
press and hold command at turn on
from keypad.
Variable audio comes out of the preamp
section and NOT the zone outputs. All
zone outputs become HOT when any
zone is active.
Use correct settings for system and
zone.
Correctly connect wiring.
To enable IR put DIP switch 9 in the
down position.
Replace batteries in remote.
Data wires are 6 conductor and must be
home run to PX-603. This is a one to
one connection.
Insure PX-603 data bus connection
integrity to PX-600.
Use correct settings for system and
zone and room.
Correctly connect wiring.
PX-603 has provision for attaching up to
3 KP3 keypads that are port dependent.
PX-600 software to work w/ PX-603 is
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.
Check Speaker continuity.
Check Preamp output.
Check amp outputs. – What type of
Amp is powering this zone? Is it
signal sensing turn on/off?
Check Fuse
Source dependent? - Check source
input continuity and line level signal.
No Audio in any zone Amplifier ON?
Is the amp plugged into a switched
outlet that is not on?
Check main power fuse in Amp and
Preamp.
Audio always very loud in
Check PX-600 back panel outputs. Variable audio comes out of the preamp
all zones. Sources can be
controlled but volume can
not.
Audio drops out then
returns
What volume level does this occur?
Does this happen when music has
soft passages in it?
Does it always happen at the same
volume level?
Is it source dependent?
Cross talk between inputs
and zones.
Is the Audioaccess system used in
conjunction with a local system? –
IE: source sharing.
Some MRX units inherently have this
problem. How to minimize.
Hum in speakers Is there a cable system integrated Remove the cable connection. If the
Turn all zones off but the problem zone.
Use program screen in Zone or Room
mode to identify active zone.
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.
Is there preamp line level signal. If so,
check amp channel.
Feed a direct signal into the amp – If it
does not power up look to the amp for
the problem.
Replace fuse with same value.
Change source or it’s wiring connection.
Insure AC power to Amp. Is not
switched unless system is designed to
use installed amp in this fashion.
Replace fuse with same value.
section and NOT the zone outputs.
Use preamp output not zone outputs.
With PX-612 check by slowly adjusting
the volume level to a softer point. Use
the Zone button on PX-600 programmer
to see what the actual level is. If the
threshold is below “10” the amp needs
to be modified.
Check sources output for drop out.
Repair or replace source.
Disconnect the local system – if the
problem is not present use a ground
loop isolator in line with the local system
feed.
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.
[TITLE]
Audioaccess Trouble Shooting Page 4
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MARCH 9, 2000
with this unit?
Check for DC offset at source inputs.
Is the Audioaccess system used in
conjunction with a local system? –
IE: source sharing.
Popping sound in
speakers – associated
with switching lights,
motors, etc.
Check terminations for bad
connections and loose wiring.
Cabling routed too close to AC
wiring, dimmers or electric motors.
Systems connected to same AC
circuit as electromechanical devices
causing noise on system.
[TITLE]
[PART NUMBER]
problem is not present then use an INLINE ground loop isolator or make your
own using 2pcs. of 75 to 300 ohm
transformers back to back on the 300ohm side. This effectively makes an
isolation transformer.
There should be no DC voltage coming
from your source.
Disconnect the local system – if the
problem is not present use a ground
loop isolator in line with the local system
feed.
Terminate wires correctly.
Re-rout cables away from AC wiring.
Use different AC circuit for either the
system or electromechanical device.
SYSTEM RELATED
Problem Encountered Find the problem component solution
System or zone turns on
by itself.
MRX tuner has little or no
reception.
Front Panel “talk back”
LED lit or blinking – no
intentional input.
Is there an extra ordinary amount of
light shining on any keypad or the
front panel of the system?
Check for stuck button on keypad.
If using an outboard control system,
check parameters of control system.
Does it have functions for timed
operations?
Is the antenna connected?
Powered Antenna?
Check for Proper tuner set up.
Data Reset
Is there an extra ordinary amount of
light shining on the front panel?
Use programmer screen to check
status identifiers:
Disable IR receiver in KPS keypad by
putting DIP switch 9 in the UP position.
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.
Make sure buttons do not stick in the
down position.
Disconnect control system and test. If
operational, the problem lies in the
control system
Connect antenna.
Make sure powered unit is supplied with
the correct voltage (AC or DC).
US frequencies should be set at .2MHz.
Will erase all programming.
Front panels – PX-600 use a pigtailed
1/8” mono jack and plug it into the IR
input on the back panel.
MRX use a
iece of Black tape to cover
Audioaccess Trouble Shooting Page 5
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MARCH 9, 2000
I = Front Panel is receiving IR.
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)
has no font
Front Panel LCD (MRX)
has no back light or is
LCD intensity potentiometer needs
adjustment.
Check ribbon connections to front
panel.
split
Programmer LCD (PX-
600) has no font
Programmer LCD (PX-
600) has no back light or
LCD intensity potentiometer needs
adjustment.
Check ribbon connections to front
panel
is split
Characters remain on
LCD after back light goes
After PX-connect or MRX-connect
this is normal.
off.
Tuner frequency
displayed on LCD (MRX)
Check that tuner set up is set for US
standards.
does not match station
being listed to.
PX-600 or MRX
constantly resets.
Remove keypads.
If the problem still exists then it is an
RS-485 Transceiver failure.
If the problem stops then look for
failed RS-485 transceivers on
keypads.
MRX Overheats Does the fan run?
Is the unit installed in cabinet w/no
ventilation?
PX-600 Overheats Is the unit installed in cabinet w/no
ventilation?
MRX main fuse blown
PX-600 main fuse blown
Check for shorted wiring.
Check for source input DC offset.
Check correct wall voltage.
No power on MRX
switched outlets.
Does the AC relay click on power
up?
[TITLE]
[PART NUMBER]
the IR receiver.
Remove the top cover of the MRX and
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.
Make sure there is a complete
connection and there are no shorted
wires inside the MRX chassis.
Remove the top cover of the
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.
Make sure there is a complete
connection and there are no shorted
wires or broken connectors.
If this happens at any other time call
Customer Support
US frequencies should be set at .2MHz.
Use the tuner preset button 1 and
MUTE to activate main menu.
Test from front panel.
Change RS-485 Transceiver.
Put one Keypad on the data bus at a
time until the bad keypad is found.
Replace KPS processor board or entire
keypad.
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. NOreplace fan.
Ventilate cabinet.
Ventilate cabinet.
Repair faulty wiring.
Change or repair source.
Connect to 110VAC.
Change relay.
Audioaccess Trouble Shooting Page 6
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MARCH 9, 2000
Check fuse on Power supply.
No power on PX-600
switched outlet.
Does the AC relay click on power
up?
Check external fuse for Power
supply.
Check internal fuse link at location
F1301 near power supply.
Problems encountered
after changing software.
Check that the IC is seated correctly
and installed in the correct direction.
Follow proper Electrostatic Discharge
procedures while installing software.
IR emitter blows Check to make sure the emitter is
plugged into an emitter port and not
the All or Blaster port.
MRX fan always runs. Check thermo-couple on amplifier
heat sink.
MRX fan never runs. Check thermo-couple on amplifier
heat sink.
Check fan windings.
[TITLE]
[PART NUMBER]
Change fuse w/ correct value.
Change relay.
Change fuse w/ same value.
Install a jumper wire 24 ga. at location
F1301 To replace this fuse.
Reinstall software correctly.
Perform DATA reset to system.
Make sure you are grounded to prevent
ESD damage.
If using the ALL output on PX-600 then
remove cover and set jumper to emitter
@ 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.
If always closed then replace.
If always open when hot replace.
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
come on.
PX-603 KPS keypad
controls main room (0)
and not the attached
room.
PX-603 has no output. Check feed to PX-603 from PX-600.
Check DIP Switch settings on KPS or
PX-603.
Check data bus wiring. Make sure
PX-603 is connected to PX-600.
Check PX-600 software
Check DIP Switch settings on KPS or
PX-603.
Check data bus wiring.
Check PX-600 software
Check speaker connection.
Check speaker continuity.
Use correct settings for system, zone
and room.
Correctly connect wiring.
PX-600 software to work w/ PX-603 is
Ver. 2.04 or higher
.
Use correct settings for system, zone
and room.
Correctly connect wiring.
PX-600 software to work w/ PX-603 is
Ver. 2.04 or higher.
Use Zone output from PX-600.
Check continuity of interconnects from
PX-600 to PX-603.
Connect speaker.
lace speaker or wiring as
Re
Audioaccess Trouble Shooting Page 7
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MARCH 9, 2000
Check AC power.
PX-603 LED indicator
light always stays RED.
Unit is in protect mode.
Check AC line voltage.
Check that speakers are not shorted.
Check data bus connection.
PX-603 LED indicator
light always stays Yellow.
Unit is always in stand-by
Check line level signal feed
continuity.
Check DIP switch settings.
Check Data bus connection.
PX-603 LED indicator
light always stays Green.
Unit is always ON.
Check DIP switch settings.
Check Data bus connection.
Check ALL ON group settings.
Was the room turned on by issuing
an “All On” command?
[TITLE]
[PART NUMBER]
necessary.
The PX-603 requires constant power
and should not be plugged into the PX600 switched outlet.
Requires 110VAC constant.
No lower than 8 Ohms per channel.
Connect data bus with correct polarity.
Insure continuity to PX-603 input.
Set switches to correct system, zone,
and room address on PX-603 (and KPS
if used).
Insure correct connection and polarity to
data bus. When using KP3 keypads a 6conductor wire must be home run.
Set switches to correct system, zone,
and room address on PX-603 (and KPS
if used).
Insure correct connection and polarity to
data bus. When using KP3 keypads a 6conductor wire must be home run.
All On commands are set in “Group set
up” for single systems and in “Multi set
up” in multi configurations.
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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MARCH 9, 2000
PX-612 RELATED
Problem Encountered Find the problem component solution
PX-612 LED indicator
light always stays RED.
Amp is in protect mode.
PX-612 LED indicator
light always stays Yellow.
IE: unit does not come out
of stand-by.
PX-612 LED indicator
light always stays Green.
IE: Amp is always ON
Check AC line voltage.
Check that speakers are not shorted
and that the impedance is correct.
Check for DC offset for sources or
Preamp.
Check for overheating.
Check input signal from Preamp.
Check continuity of cabling feeding
amp.
Is there a cable system attached to
the Audioaccess controller?
Is there a local system sharing
sources with the system? Some
receivers short the input to ground
when in the stand-by condition.
Requires 110VAC constant.
No lower than 4 Ohms per channel.
Change or repair source.
Change or repair Preamp.
Ventilate cabinet.
Feed a direct signal to Amplifier such as
from a CD player to see if it turns on
and off with signal sensing.
Change or repair defective cable.
Disconnect cable. If the problem goes
away then use a ground loop isolator in
line with the cable input feed.
Disconnect wiring feeding the local
system. If problem goes away use an in
line (RCA style) ground loop isolator to
bring the signal to the local system.
[TITLE]
[PART NUMBER]
MULTI SYSTEM RELATED
Problem Encountered Find the problem component solution
Subsequent units in multi
system (other than
system 1) always jump
back to FM after another
source key has been
pressed.
Subsequent units in multi
system do not respond to
any commands other than
front panel.
PX-connect or MRX-connect
sequence was not performed
correctly.
Check Data bus connection.
Check keypad connections.
Check bus fuse on back panel.
Voltage between pins 1 & 4 should
be between 8 to 13 VDC.
After running the connect sequence be
sure to press the “ALL OFF” button on
front panels from the highest system
number to the lowest system number.
Connect with correct polarity while not
connecting the RED (or power) wire
between systems.
Make sure keypads are correctly
connected for polarity.
Change fuse w/ 1.5 amp slo-blo
Audioaccess Trouble Shooting Page 9
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MARCH 9, 2000
MCI RELATED
Problem Encountered Find the problem component solution
MCI is not passing
commands
MCI Red LED does not
light
Check Green LED is flashing when
commands are sent.
Check Data bus connection.
Check that MCI is receiving power
from Data bus.
Check outboard control systems
connection and polarity. (RS-232)
Check Data bus connection.
Check data bus voltage at head unit.
Issue a command fro0m a keypad – you
should see the Green LED flash.
Connect w/ correct polarity.
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.
Insure correct connection and polarity
from RS-232 connection.
Connect w/ correct polarity.
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.
[TITLE]
[PART NUMBER]
PDM RELATED
Problem Encountered Find the problem component solution
Page Doorbell Module
chimes constantly.
Check jumper settings.
Check trigger wiring.
Insure door station is powered.
Set jumpers for correct triggering. See
top cover of PDM
Is trigger wire connected correctly at
both PDM and trigger device location.
Continuity, shorts?
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 RA, MOD, JACK
PX-603
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 LIS
T
800-3160-000-00
805-3000-007
610-1101-000
610-1102-000
PX-603SW1.02
600/612/603 BOX
600/612/603 FOAM SET
ICS DIG PROG EPROM PX-603 V1.01
ICS DIG PROG EPROM PX-603 V1.02
AA PX-603 V1.02SW FIELD UPDATE KIT
Overview
JANUARY 23, 2001 No.A0101
Madrigal Audio Laboratories, Inc.
2081 South Main Street
Middletown, CT 06457.07081
Phone: 860.346.0896
Fax: 860.346.1540
T
ECHNICAL
B
ULLETIN
PX-603 Software v1.02
Page 1 of 2
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
New Software
The software in the PX-603 is contained on a pre-programmed EPROM available from
Audioaccess Technical Support. Please have part number and serial number available when
ordering.
Software v1.02 Part #
Audioaccess Technical Services
Condition Updates
Condition
Example
Solution
System
Parameters
PX-603 rooms function erratically after receiving status request command
• Sources taking a long time to switch
• Sources do not switch
• Volume control inoperative
• Volume control slow to respond
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.
o PX-600 or PX-700 systems controlled by an external RS-232 control device.
PX-603SW1.02
888-691-4171
PX-603 Software v1.02-A0101
WB-DW CR / FB-DW
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.
JANUARY 23, 2001 No.A0101
T
ECHNICAL BULLETIN
RS-232
Controller
Commands
PX-700
Commands
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
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
The following commands sent by the PX-700 would cause the erratic behavior when a PX-603 is
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
Page 2 of 2
PX-603 Software v1.02-A0101
Madrigal Audio Laboratories
Page
1
of
1
Page
1
WB-TS / FB-DW
P.O. Box 781
Middletown, CT 06457-0781
(860) 346-0896
FAX (860) 347-6251
Technical Services
Information Sheet
KP3 WIRING TO PX-603
JULY 30, 1998
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
DOC# AA73098
FEBRUARY 7, 2002 No.A0201
Madrigal Audio Laboratories, Inc.
2081 South Main Street
Middletown, CT 06457.07081
Phone: 860.346.0896
Fax: 860.346.1540
TECHNICAL BULLETIN
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 PX700 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.
PX-603 any
PX-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! B
T
OOLS REQUIRED............................................................................................1
EFORE BEGINNING....................................................................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
Software EPROM
Location U711
Keypad
Dipswitches
Microprocessor
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: Wayn e M ergel
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
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:
player)
Approved By:
Page 1 of 2
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 Switch es a s 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 Arr ow (up) and ar row (down),
b.) Mute Audio by pressing both (up) & (down) arrows together,
c.) Turn unit off by pressi ng “on” aga in.
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
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