Test Cables ............................................................................................................................ 127-129
Figure 11. Amplifier Output Test Cable Wiring Diagram .................................................................127
PS1 Power Stand Software Update Procedure .......................................................................... 130
Service Manual Revision History.................................................................................................131
1
Page 2
Safety Information
1. Parts that have special safety characteristics are identified by the symbol on schematics
or by special notes on the parts list. Use only replacement parts that have critical characteristics
recommended by the manufacturer.
2. Make leakage current or resistance measurements to determine that exposed parts are
acceptably insulated from the supply circuit before returning the unit to the customer.
Use the following checks to perform these measurements:
A. Leakage Current Hot Check-With the unit completely reassembled, plug the AC line cord
directly into a 120V AC outlet. (Do not use an isolation transformer during this test.) Use a
leakage current tester or a metering system that complies with American National Standards
Institute (ANSI) C101.1 "Leakage Current for Appliances" and Underwriters Laboratories (UL)
6500 / IEC 60056 paragraph 9.1.1. With the unit AC switch first in the ON position and then in
OFF position, measure from a known earth ground (metal waterpipe, conduit, etc.) to all exposed metal parts of the unit (antennas, handle bracket, metal cabinet, screwheads, metallic
overlays, control shafts, etc.), especially any exposed metal parts that offer an electrical return
path to the chassis. Any current measured must not exceed 0.5 milliamp. Reverse the unit
power cord plug in the outlet and repeat test. ANY MEASUREMENTS NOT WITHIN THE
LIMITS SPECIFIED HEREIN INDICATE A POTENTIAL SHOCK HAZARD THAT MUST BE
ELIMINATED BEFORE RETURNING THE UNIT TO THE CUSTOMER.
B. Insulation Resistance Test Cold Check-(1) Unplug the power supply and connect a jumper
wire between the two prongs of the plug. (2) Turn on the power switch of the unit. (3) Measure
the resistance with an ohmmeter between the jumpered AC plug and each exposed metallic
cabinet part on the unit. When testing 3 wire products, the resistance measured to the product
enclosure should be between 2 and infinite MOhms. Also, the resistance measured to exposed
input/output connectors should be between 4 and infinite MOhms. When testing 2 wire products, the resistance measured to exposed input/output connectors should be between 4 and
infinite MOhms. If it is not within the limits specified, there is the possibility of a shock hazard,
and the unit must be repaired and rechecked before it is returned to the customer.
CAUTION: The Bose® Personalized Amplification SystemTM contains
no user-serviceable parts. To prevent warranty infractions,
refer servicing to warranty service stations or factory service.
PROPRIETARY INFORMATION
THIS DOCUMENT CONTAINS PROPRIETARY INFORMATION OF
BOSE CORPORATION WHICH IS BEING FURNISHED ONLY FOR
THE PURPOSE OF SERVICING THE IDENTIFIED BOSE PRODUCT
BY AN AUTHORIZED BOSE SERVICE CENTER OR OWNER OF
THE BOSE PRODUCT, AND SHALL NOT BE REPRODUCED OR
USED FOR ANY OTHER PURPOSE.
2
Page 3
Specifications
MECHANICAL
External Dimensions
L1 Cylindrical Radiator:Height:86.0 in (2184 mm)
Width: 3.5 in (89 mm)
Depth: 4.0 in (105 mm)
PS1 Power Stand:Height: 5.0 in (127 mm)
Width: 26.0 in (660 mm)
Depth: 26.0 in (660 mm)
B1 Bass Module:Height: 15.3 in (380 mm)
Width: 10.3 in (257 mm)
Depth: 18.0 in (457 mm)
R1 Remote:Height:1.6 in (40 mm)
Width: 2.8 in (71 mm)
Depth: 5.6 in (141 mm)
Weight
L1 Cylindrical Radiator:14.5 lbs (6 kg) Upper
16.0 lbs (7 kg) Lower
PS1 Power Stand:35 lbs (16 kg)
B1 Bass Module:28 lbs (13 kg)
R1 Remote:0.6 lbs (0.27 kg)
Transducer Complement
L1 Cylindrical Radiator:12 x 2.25 in (57 mm) Drivers - 4 ohms
B1 Bass Module:2 x 5.25 in (133 mm) Drivers - 8 ohms
ACOUSTICAL
Frequency Response
L1 Cylindrical Radiator:120 Hz to 15 kHz
B1 Bass Module:40 Hz to 250 Hz
PAS System (with system EQ):40 Hz to 15 kHz
Port Tuning
L1 Cylindrical Radiator:114 Hz
B1 Bass Module:44 Hz
3
Page 4
Specifications
ELECTRICAL
Impedance
L1 Cylindrical Radiator:4 ohms nominal
B1 Bass module:8 ohms nominal
System Power Handling
(Continuous full power per IEC-268-5 for duration of 100 hours)
L1 Cylindrical Radiator:250 W (each section)
B1 Bass module:125 W
PS1 Power Stand
Rated Power:3 x 250 W/Ch/4 ohm. (all channels operating)
Efficiency:80% minimum
THD at Rated Power:1.0% Max @ 30 Hz - 15 KHz @ 4 ohms/Ch.
THD at -3dB (~125W):0.25% Max @ 30 Hz - 15 KHz @ 4 ohms/Ch.
S/N ratio:-80dB minimum, referenced to full power
Frequency Response:40 Hz-15 KHz +/-3 dB @ R load = 4-16 ohms
Thermal:Operate 3Ch. x 83 W Continuous @ 4 ohms,
50°C ambient with No Shut-Down
Operating AC Input Voltage:120V Range, Approx. 80-136 VAC, Full Load
Protected against short circuited load and AC
line fluctuations of +20% and –25%
Max Power Draw:1400 watts 50/60 Hz
Peak In Rush Current:32 A @ 120V, 60 Hz
Power Supply Voltages:Channels 1,2,3 SMPS 27.5 VDC +/-2%
Auxiliary supply #1 +5 VDC/1 A +/- 3%
Auxiliary supply #2 +3.3 VDC/1.5 A +/- 3%
Auxiliary supply #3 +/-15 VDC/1.5 A +/- 3%
Fan 1.2.3.4 Voltage:+24 VDC +/-1V
4
Page 5
PS1 Power Stand Version 1.0 and 1.1 Differences
The PS1 power stand currently has two versions, Version 1.0 and Version 1.1, referred to in this
manual as V1.0 and V1.1. Version 1.0 was built in a US/Canada version only until June 2005.
Version 1.1 units were built in both US and non-US versions, starting in June 2005. The Version
1.1 units have a “V1.1” designation on the product label on the bottom of the power stand. The
Version 1.0 units do not have this designation.
The circuit board assemblies used in both versions of the power stand are not compatible with
each other. You cannot use a V1.0 board in a V1.1 power stand, and vice-versa. Both units act
the same from the perspective of the end customer, meaning that all input and output connections are the same and that it is the same operationally. The biggest difference between these
units is that the V1.1 units have significantly improved EMI performance. This improved performance required changes in the boards that made them incompatible with the V1.0 power stand.
Electrostatic Discharge Sensitive (ESDS)
Device Handling
This unit contains ESDS devices. We recommend the following precautions when repairing,
replacing or transporting ESDS devices:
• Perform work at an electrically grounded work station.
• Wear wrist straps that connect to the station or heel straps that connect to conductive
floor mats.
• Avoid touching the leads or contacts of ESDS devices or PC boards even if properly
grounded. Handle boards by the edges only.
• Transport or store ESDS devices in ESD protective bags, bins, or totes. Do not insert
unprotected devices into materials such as plastic, polystyrene foam, clear plastic bags,
bubble wrap or plastic trays.
Warranty
®
The Bose
able warranty. The line array and the bass module are covered by a 5-year limited warranty.
Personalized Amplification SystemTM electronics are covered by a limited 1-year transfer-
Part List Notes
1. This part is not normally available from Customer Service. Approval from the Field Service
Manager is required before ordering.
2. The individual parts located on the PCBs are listed in the Electrical Part List.
3. This part is critical for safety purposes. Failure to use a substitute replacement with the
same safety characteristics as the recommended replacement part might create shock, fire
and/or other hazards.
4. This part is referenced for informational purposes only. It is not stocked as a repair part. Refer
to the next higher assembly for a replacement part.
5
Page 6
Packaging Part List
Item
Description Qty. Bose® Part
Vendor Part
Note
PS1 Power Stand (see Figure 1)
Number
- Carton Kit, Includes Carton,
Cardboard A & B, and Packing
PE Foams 1 – 4.
1 Packing Cardboard A 2 275437 1450-7370-0
2 Carry Bag for Power Stand 1 275468 8901-4920-0
3 Poly Bag for Carry Bag 1 - 1497-7572-0
4 Poly Bag for Owner’s Manual 1 - 1497-1062-0
5 Owner’s Manual, 1 Language 1 263976 4301-7108-0 US/Can
10 Packing PE Foam 2 1 275440 1493-0401-0
11 PS1 Power Stand Assembly 1 - REF
12 Poly Bag for Power Stand 1 - 1497-7572-0
13 Packing PE Foam 3 2 275441 1493-0411-0
14 R1 Remote Control Assembly
15 Packing PE Foam 1 1 275439 1493-0391-0
16 Packing Cardboard B 4 275438 1450-7410-0
17 Carton 1 275846 1436-4301-0-3
18 AC Line Cord, 120V, 15A,
AC Line Cord, 230V, 15A,
AC Line Cord, 230V, 15A,
AC Line Cord, 230V, 15A,
19 Poly Bag for Fuse 1 - 1497-0332-0
20 Fuse, T15A, 125V/250V,
Fuse, T10A, 125V/250V,
- Owner’s Manual, CD, 8 Language 1 279081 - Euro/Aus
Foams 1 - 5
1 Packing PE Foam 4 1 275462 1493-0461-0
2 Packing PE Foam 2 2 275460 1493-0441-0
3 Poly Bag 2 - 1497-7562-0 4
4 Packing PE Foam 1 1 275459 1493-0431-0
5 Packing Cardboard A 2 275457 1450-7380-0
6 Packing PE Foam 5 1 275463 1493-0471-0
7 Line Source Lower Assembly 1 REF -
8 Line Source Upper Assembly 1 REF -
9 Line Source Carry Bag 2 275470 -
10 Poly Bag for Carry Bag 2 - - 4
11 Packing Cardboard B 1 275458 1450-7400-0
12 Packing PE Foam 3 1 275461 1493-0451-0
13 Carton, no fillers 1 275848 1436-3801-0-3
- Declaration of Conformity 1 278823 - Euro
Note
1
2
3
3
4
2
5
6
7
8
9
10
11
12
5
Figure 2. L1 Line Array Packaging View
8
13
Page 9
Packaging Part List
B1 Bass Module (see Figure 3)
Item
Number
- Carton Kit – Includes All Fillers 1 263994 -
1 Carton Filler, PE Foam 2 275464 145A-7570-0
2
3
4 Bass Module Carton, No Fillers 1 275849 145B-0170-0
5
6
7
8
-
Poly Bag, 12x16x49”
B1 Bass Module
Bubble Bag for Cable
4-Wire Speakon Cable Assembly
Poly Bag for Instruction Manual
Owner's Manual, US/Canada
Owner's Manual, 8 Language
Carry Bag for Bass Module
consists of:
Plate, Base, Power Stand - 1404-9601-0 1 4
PS1 Slide Spring - 2510-3611-0 1 4
Screw, Flat-CS, M2.6x8, BZ - 2901-2608-3001 4 4
Screw, Mach, M6x35mm, Blk, Zinc,
Slide Block
Screw, Mach, M4x8 276997 2904-4008-3000 2 4
Cavity, Aluminum, Power Stand - 4135-3731-0 1 4
Guide, Cavity, Power Stand - 4135-3741-0 1 4
Latch, Power Stand - 4135-3751-0 1 4
Slide, Power Stand - 4135-3761-0 1 4
Plate, Latch, Power Stand - 4135-3771-0 1 4
Post, Copper, Power Stand - 4135-3971-0 1 4
Pedal, Foot, Power stand - 4154-6921-0 1 4
Screw, Mach, M4x14, Blk, Zinc 276999 2904-4014-3000 4 Screw, Mach, M3x8, Blk, Latch Plate 277001 2901-3008-3000 4
Gasket, EVA, 5x500mm - 4153-3331-0 2 4
5 Power Box Assembly, includes PCBs
US/Canada, 120V (version 1.0 only)
US/Canada, 120V (version 1.1 only)
Euro, UK, Aus, 230V (version 1.1)
6 Screw, Mach, M3x10, Blk, Zinc 277005 2900-3010-3030 16
7 Housing, Upper, PS1 264034 1466-4801-0 1
8 Power Stand Protective Plug 273828 4154-7251-0 1
9 Power Stand Foot Pedal 264039 4154-6921-0 1
10 PS1 DSP PCB Assembly,
US/Canada, 120V (version 1.0)
US/Canada, 120V (version 1.1 only)
and Euro, UK, Aus, 230V (vers. 1.1)
11 PS1 MCU PCB Assembly,
US/Canada, 120V (version 1.0 only)
US/Canada, 120V (version 1.1 only)
and Euro, UK, Aus, 230V (vers. 1.1)
12 PS1 Input PCB Assembly,
US/Canada, 120V (version 1.0 only)
US/Canada, 120V (version 1.1 only)
and Euro, UK, Aus, 230V (vers. 1.1)
13 Input Panel Assembly, includes DSP,
MCU and Input PCBs
US/Canada, 120V (version 1.0 only)
US/Canada, 120V (version 1.1 only)
Euro, UK, Aus, 230V (vers. 1.1)
14 Power Stand Push Button 263979 2446-4901-0 4
15 Screw, Mach, M3x10, Input Panel 277004 2911-3010-3000 18
16 Power Stand V/R Knob 263986 2446-5501-0 4
17 Power Stand Door Assy, includes: 273727 - 1
D101 LL4148, SM 4804-1480-3 4
D102 LL4148, SM 4804-1480-3 4
D103 LL4148, SM 4804-1480-3 4
D104 LL4148, SM 4804-1480-3 4
D105 LL4148, SM 4804-1480-3 4
D106 LL4148, SM 4804-1480-3 4
D107 LL4148, SM 4804-1480-3 4
D108 LL4148, SM 4804-1480-3 4
D109 LL4148, SM 4804-1480-3 4
D110 LL4148, SM 4804-1480-3 4
D113 LL4148, SM 4804-1480-3 4
D114 LL4148, SM 4804-1480-3 4
D115 LL4148, SM 4804-1480-3 4
D116 LL4148, SM 4804-1480-3 4
D117 LL4148, SM 4804-1480-3 4
D118 LL4148, SM 4804-1480-3 4
D119 LL4148, SM 4804-1480-3 4
D120 LL4148, SM 4804-1480-3 4
D121 LL4148, SM 4804-1480-3 4
D122 LL4148, SM 4804-1480-3 4
D123 LL4148, SM 4804-1480-3 4
D124 LL4148, SM 4804-1480-3 4
D125 LL4148, SM 4804-1480-3 4
D126 LL4148, SM 4804-1480-3 4
D127 LL4148, SM 4804-1480-3 4
D127A LL4148, SM 4804-1480-3 4
D128 LL4148, SM 4804-1480-3 4
D128A LL4148, SM 4804-1480-3 4
D129 LL4148, SM 4804-1480-3 4
D130 LL4148, SM 4804-1480-3 4
D131 LL4148, SM 4804-1480-3 4
D132 LL4148, SM 4804-1480-3 4
D133 LL4148, SM 4804-1480-3 4
D134 LL4148, SM 4804-1480-3 4
D135 LL4148, SM 4804-1480-3 4
D136 LL4148, SM 4804-1480-3 4
Description Vendor Part
Number
Note
24
Page 25
Electrical Part List
Input Panel PCB Assembly
Diodes (continued)
Reference
Designator
D137 LL4148, SM 4804-1480-3 4
D138 LL4148, SM 4804-1480-3 4
D139 LL4148, SM 4804-1480-3 4
D140 LL4148, SM 4804-1480-3 4
D141 LL4148, SM 4804-1480-3 4
D142 LL4148, SM 4804-1480-3 4
D143 LL4148, SM 4804-1480-3 4
D144 LL4148, SM 4804-1480-3 4
D341 LL4148, SM 4804-1480-3 4
D342 LL4148, SM 4804-1480-3 4
D343 LL4148, SM 4804-1480-3 4
D344 LL4148, SM 4804-1480-3 4
D345 LL4148, SM 4804-1480-3 4
D346 LL4148, SM 4804-1480-3 4
D347 LL4148, SM 4804-1480-3 4
D348 LL4148, SM 4804-1480-3 4
D801 LL4148, SM 4804-1480-3 4
D802 LL4148, SM 4804-1480-3 4
D803 LL4148, SM 4804-1480-3 4
D804 LL4148, SM 4804-1480-3 4
D805 LL4148, SM 4804-1480-3 4
D806 LL4148, SM 4804-1480-3 4
D807 LL4148, SM 4804-1480-3 4
D808 LL4148, SM 4804-1480-3 4
D809 LL4148, SM 4804-1480-3 4
D810 LL4148, SM 4804-1480-3 4
D811 LL4148, SM 4804-1480-3 4
D812 LL4148, SM 4804-1480-3 4
D813 LL4148, SM 4804-1480-3 4
D814 LL4148, SM 4804-1480-3 4
D815 LL4148, SM 4804-1480-3 4
U801 TDA8 927J, DIGITAL P OWER ST A GE 3 14867 (BO S E P/ N) 4
U802 TDA8 927J, DIGITAL P OWER ST A GE 3 14867 (BO S E P/ N) 4
U803 TDA8929T , A NALOG CONT ROLLER 3 14868 (BOSE P/ N) 4
U804 TDA8 927J, DIGITAL P OWER ST A GE 3 14867 (BO S E P/ N) 4
U805 TDA8 927J, DIGITAL P OWER ST A GE 3 14867 (BO S E P/ N) 4
U806 TDA8929T , A NALOG CONT ROLLER 3 14868 (BOSE P/ N) 4
U807 TDA8 927J, DIGITAL P OWER ST A GE 3 14867 (BO S E P/ N) 4
U808 TDA8 927J, DIGITAL P OWER ST A GE 3 14867 (BO S E P/ N) 4
U809 TDA8929T , A NALOG CONT ROLLER 3 14868 (BOSE P/N) 4
Z501 ZENER, 18V, 1/2W, AT 4837-18V6-2 4
Z502 ZENER, 18V, 1/2W, AT 4837-18V6-2 4
Z503 ZENER, 18V, 1/2W, AT 4837-18V6-2 4
Z504 ZENER, 18V, 1/2W, AT 4837-18V6-2 4
Z505 ZENER, 18V, 1/2W, AT 4837-18V6-2 4
Z506 ZENER, 30V, 1/2W, 5%, AT 4837-30V6-2 4
Z601 ZENER, 18V, 1/2W, AT 4837-18V6-2 4
Z602 ZENER, 15V, 1/2W, 5%, AT 4837-15V6-2 4
Reference
De signator
D501 RECTIFIER, UF4006, GI, AT 317433-000S
D502 RECTIFIER, UF4006, GI, AT 317433-000S
D503 DUAL ULTRAFAST RECTIFIERS, BYV32-200,
D504 DUAL, ULTRAFAST RECTIFIERS, BYV32-200,
D509 RECTIFIER, UF4003, GI, AT 4840-8520-2 4
D601 RECTIFIER, UF4006, GI, AT 317433-000S
D602 RECTIFIER, UF4003, GI, AT 4840-8520-2 4
D604 RECTIFIER, UF4006, GI, AT 317433-000S
D6 05 U F5 404 , ULT R AF A ST R E CT, AT , 3A , 400V 31743 2-000 S
SCR501 RECTIFIER, SCR, MCR100-6 4840-1700-0 4
IC50 1 UC 284 2B , DIP , 8 PIN, ST, PW M C ONT 3132 -1 210-1 4
IC60 1 UC 284 2B , DIP , 8 PIN, ST, PW M C ONT 31781 2- 000 S
IC60 2 PHOT O COUP LE R , HIG H D EN S ITY, P C8 17A 4 81C - 817 A- 3 4
IC603 TL431CLP, TI/MOT 485L-431C-5 4
IC60 4 CD 409 3B CN, DIP, QUA D NAN D G ATE 3130 -7 140 -0 4
IC60 5 CD 401 5, ST ATIC SH IF T RE G IS TE R 3 132-0 750 -0 4
IC60 6 PHOT O COUP LE R , HIG H D EN S ITY, P C8 17A 4 81C - 817 A- 3 4
IC601 UC2843B, DIP, 8 PIN, ST, PWM CONTROLLER 317812-000S
IC602 PC81 7A, PHOTOCOUPLER, HIGH DENSITY 481C-817A-3 4
IC603 TL431CLP, TI/MOT 485L-431C-5 4
IC60 4 C D409 3B CN , DI P, QU AD NA ND GA T E 3 130-7140 -0 4
IC605 CD4015, STATIC SHIFT REGISTER 3132-0750-0 4
IC606 PC81 7A, PHOTOCOUPLER, HIGH DENSITY 481C-817A-3 4
TH 601 NTC TH E R M IS TOR, S CK -0512 (V ersion 1.1) 31 743 7- 000S
TH601 THERMISTOR, NTC, SCK-2R515, 215 OHM,
TH 602 NTC TH E R M IS TOR, S CK -0512 (V ersion 1.1) 31 743 7- 000S
TH602 THERMISTOR, NTC, SCK-2R515, 215 OHM,
D701 LL4148, SM 4804-1480-3 4
D702 LL4148, SM 4804-1480-3 4
D705 LL4148, SM 4804-1480-3 4
D706 LL4148, SM 4804-1480-3 4
D707 LL4148, SM 4804-1480-3 4
D708 LL4148, SM 4804-1480-3 4
D709 1N4001, AT 4804-0010-2 4
Figure 9. PS1 Power Stand Electronics Module with Top Cover Removed
77
Page 78
Disassembly Procedures
Power Stand Procedures
Note: Refer to Figure 9 for the following
procedures.
1. Lower Housing Removal
1.1 Place the power stand on a soft surface
so that the line array opening faces down.
1.2 Using a Phillips-head screwdriver,
remove the 19 screws that secure the lower
housing to the upper housing. Lift off the
lower housing.
2. Amplifier Housing Removal
2.1 Perform procedure 1.
2.2 Make a note of the wiring, and discon-
nect the wiring harnesses and connectors
that run to the amplifier housing. The amplifier housing is the large metal box with the
four fans.
2.3 Using a Phillips-head screwdriver,
remove the four screws that secure the
power stand base plate to the bottom of the
line array cavity. Lift it off of the cavity. Be
careful not to damage any wires.
2.4 Once all of the wiring is disconnected,
use a Phillips-head screwdriver to remove
the 16 screws that secure the amplifier
housing to the power stand upper housing.
Carefully lift the amplifier housing out of the
power stand upper housing.
3. Line Array Cavity Removal
3.1 Perform procedure 2.
3.2 Using a Phillips-head screwdriver,
remove the three screws that secure the line
array cavity to the upper housing. Lift the line
array cavity off of the upper housing. The
power stand foot pedal will disengage from
the shaft.
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Disassembly Procedures
4. Amplifier PCB Removal
4.1 Perform procedure 2.
4.2 Make a note of the wiring and disconnect
all of the wiring harnesses that connect the
power supply box to the DSP PCB and to the
microprocessor PCB.
4.3 Using a Phillips-head screwdriver,
remove the 24 screws that secure the power
supply box top cover in place. Lift off the top
cover.
4.4 Once you have the top cover off, make a
note of the wiring configuration and unplug
the wiring harnesses that connect to the
amplifier PCB.
4.5 Using a Phillips-head screwdriver,
remove the 6 screws that secure amplifier
PCB in place. Lift the amplifier PCB out of
the chassis.
5. Switching DC Power Supply Removal
5.1 Perform procedure 2.
5.2 Make a note of the wiring and disconnect
all of the wiring harnesses that connect the
power supply box to the DSP PCB and to the
microprocessor PCB.
5.3 Using a Phillips-head screwdriver,
remove the 24 screws that secure the power
supply box top cover in place. Lift off the top
cover.
5.4 Once you have the top cover off, make a
note of the wiring configuration and unplug
the wiring harnesses that connect to the
switching DC power supply PCB you wish to
remove.
5.5 Using a Phillips-head screwdriver,
remove the 4 screws that secure power
supply PCB in place. Lift the power supply
PCB out of the chassis.
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Disassembly Procedures
6. Auxiliary Power Supply Removal
6.1 Perform procedure 2.
6.2 Make a note of the wiring and disconnect
all of the wiring harnesses that connect the
power supply box to the DSP PCB and to the
microprocessor PCB.
6.3 Using a Phillips-head screwdriver,
remove the 24 screws that secure the power
supply box top cover in place. Lift off the top
cover.
6.4 Once you have the top cover off, make a
note of the wiring configuration and unplug
the wiring harnesses that connect to the
switching DC power supply PCB you wish to
remove.
6.5 Using a Phillips-head screwdriver,
remove the 4 screws that secure power
supply PCB in place. Lift the power supply
PCB out of the chassis.
7. EMI Filter PCB Removal
7.1 Perform procedure 2.
7.2 Make a note of the wiring and disconnect
all of the wiring harnesses that connect the
power supply box to the DSP PCB and to the
microprocessor PCB.
7.3 Using a Phillips-head screwdriver,
remove the 24 screws that secure the power
supply box top cover in place. Lift off the top
cover.
7.4 Once you have the top cover off, make a
note of the wiring configuration and unplug
the wiring harnesses that connect to the EMI
Filter PCB.
7.5 Using a Phillips-head screwdriver,
remove the 4 screws that secure the EMI
Filter PCB in place. Lift the EMI Filter PCB
out of the chassis.
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Disassembly Procedures
8. Chassis Fan Removal
8.1 Perform procedure 2.
8.2 Using a Phillips-head screwdriver,
remove the 24 screws that secure the power
supply box top cover in place. Lift off the top
cover.
8.3 Using a Phillips-head screwdriver,
remove the 4 screws that secure the fan to
the chassis.
8.4 Follow the wire harness for the fan you
are removing to the auxiliary power supply
PCB and unplug it. Lift the fan out of the
chassis.
Re-assembly note: When installing the new
fan, be sure to match the orientation of the
fan next to it so that it will move air in the
proper direction when in use.
9. Microprocessor PCB Removal
9.1 Perform procedure 1.
9.2 Make a note of the wiring configuration
and unplug the six wire harnesses from the
connectors on the board.
9.3 Lift the microprocessor PCB off of the
connectors that engage it on the bottom of
the board and the pins that connect to the
preset switches.
Re-assembly note: When re-installing this
PCB, be sure that all of the pins from the
preset switches are straight and properly
engage the connectors on the bottom of the
microprocessor PCB.
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Disassembly Procedures
10. DSP PCB Removal
10.1 Perform procedure 1.
10.2 Make a note of the wiring configuration
and unplug the six wire harnesses from the
connectors on the board.
10.3 Using a pair of needle-nose pliers,
compress the bottoms of the plastic standoff
posts used to attach the DSP PCB to the
Input/Output PCB. Lift the DSP PCB off of
the I/O PCB.
11. Input/Output PCB Removal
11.1 Perform procedures 9 and 10.
11.2 On the front panel of the power stand,
remove the four knobs for the mic trim and
level controls.
11.3 Using a nut driver, remove the nine nuts
and washers for the 1/4 inch phono jacks.
11.4 Using a Phillips-head screwdriver,
remove the 16 screws that secure the XLR,
Data in/out and Neutrik connectors to the
front panel.
11.5 Lift the I/O PCB off of the input panel.
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Disassembly Procedures
Line Array Procedures
Note: The line arrays are divided into a
lower line array, which plugs directly into the
power stand, and an upper line array, which
uses a bayonet arrangement to align the
upper array to the lower array for connection. All electrical connections are automatically made when the arrays are mounted
into the power stand and the upper array is
mounted to the lower array.
Note: Refer to Figure 7 for the following
procedures.
1. Grille Removal
1.1 Using a Phillips-head screwdriver,
remove the six screws that secure the end
cap to the line array enclosure. Lift off the
end cap. Unplug the molex connector from
the speaker harness.
1.2 Grasp the edge of the grille and gently
lift it away from the enclosure.
2. Nameplate Removal
2.1 Perform procedure 1.
2.2 On the back of the grille, unbend the
legs of the logo. Lift off the nameplate.
4. Upper Line Array Top End Cap Removal
4.1 Using a Phillips-head screwdriver,
remove the seven screws that secure the
end cap to the line array enclosure. Lift off
the end cap.
Re-assembly note: Make sure that the end
cap gasket is properly aligned to achieve an
airtight seal.
5. Upper Line Array Bottom End Cap
Removal
5.1 Using a Phillips-head screwdriver,
remove the seven screws that secure the
end cap to the line array enclosure. Lift the
end cap away from the enclosure. Unplug
the molex connector from the speaker
harness.
Re-assembly note: Make sure that the end
cap gasket is properly aligned to achieve an
airtight seal.
6. Lower Line Array Top End Cap Removal
6.1 Using a Phillips-head screwdriver,
remove the six screws that secure the end
cap to the line array enclosure. Lift off the
end cap. Unplug the molex connector from
the speaker harness.
3. Driver Removal
3.1 Perform procedure 1.
3.2 Using a Phillips-head screwdriver,
remove the four screws that secure the
driver to the enclosure.
3.3 Lift the driver out of the enclosure. Note
the wiring configuration and cut the wires as
close to the driver terminals as possible.
Re-assembly note: Make sure that the end
cap gasket is properly aligned to achieve an
airtight seal.
7. Lower Line Array Bottom End Cap
Removal
7.1 Using a Phillips-head screwdriver,
remove the seven screws that secure the
end cap to the line array enclosure. Lift the
end cap away from the enclosure. Unplug
the molex connector from the speaker
harness.
Re-assembly note: Make sure that the end
cap gasket is properly aligned to achieve an
airtight seal.
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Disassembly Procedures
8. Front Cap Removal
8.1 Using a Phillips-head screwdriver,
remove the four screws that secure the front
cap to the bottom front of the line array
enclosure. Lift the end cap away from the
enclosure.
Bass Module Procedures
Note: Refer to Figure 8 for the following
procedures.
1. Grille Removal
1.1 Using an allen wrench, remove
the four screws that secure the grille to the
upper and lower speaker end caps.
1.2 Lift off the grille.
2. Nameplate Removal
4. Input Panel Removal
4.1 Using a Phillips-head screwdriver,
remove the four screws that secure the
input panel to the bass module enclosure.
4.2 Lift the input panel away from the bass
module enclosure.
4.3 Make a note of the wiring configuration
and un-solder the speaker harness wires
from the input panel.
2.1 Perform procedure 1.
2.2 On the back of the grille, remove the
retaining nut and spring from the post of the
nameplate. Lift the nameplate off of the
grille.
3. Driver Removal
3.1 Perform procedure 1.
3.2 Using a Phillips-head screwdriver,
remove the four screws that secure the
driver to the bass module enclosure.
3.3 Lift the driver out of the enclosure. Note
the wiring configuration and cut the wires as
close to the driver terminals as possible.
Re-assembly notes:
- When soldering the speaker harness wires
to the new driver, be sure to observe polarity
of the driver harness wires.
- Be sure to properly align the gasket behind
the new driver to ensure an airtight fit.
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Figure 10. PS1 Power Stand Block Diagram
+24v
Off
Ch2 In
Ch1 In
User EQPreset EQNoiseGate
User EQPreset EQNoiseGate
PHANTOM
DSP Processing Block Diag
Ch1/2 Preset
Remote
S-DATA Out
(to SPDIF)
Ch 3 In
Ch 4 In
L
R
Master Vol. Range: -80 to +22dB (+10 @ 12:00)
Sys. EQ+X-Over, Hi
Sys. EQ+X-Over, LoLimiter
Limiter
Knee=+1.5dBV
Bass Out
Hi Out
Remote
-1
3
+24
Input-MIC
+1
12
Ch2
12
3
+8 to +50 dB
Mic (XLR) input
+21dB @ ctr
INA163
5K 10C
Ch2 Line Out
Nom.: +6dBV (Balanced)
Clip@+24dBV "
Tip = Return
S3PC8475
µC
-20dB
Line (1/4") input
Sig/OL
Trim
Ring = Send
Data-Out
(SPDIF)
CS8406
Xmiter
SPDIF
Input-LINE
+1
-12 to +30 dB
+1dB @ ctr
Ch2 Insert
Data In
(SPDIF)
CS8416
SPDIF
Rcvr
Max. Level = +10dBV
Nom. Level = -21dBV(Trim ctr)
Min. Level = -66dBV for full output
(Trim, Ch1 Vol+Master @ Max)
Input-MIC
PHANTOM
Off
+24v
+24
Volume
Control
Digital
2-Ch.
Max. Gain = 0dB
Nom. Gain = -10dB (12:00)
Min. Gain = -40dB
+1
0dB
Nom. -10dBV
Clip@+6dBV
+1
0dB
A/D
+1
A/D
+1
0dB
3
INA163
Clip@+18dBV
Nom.: 0dBV
TCA9459F
0dB
Nom. -10dBV
Clip@+6dBV
CS5361
DSP
Ch1
12
+8 to +50 dB
Mic (XLR) input
+21dB @ ctr
5K 10C
Trim
Green=Signal= -30dBV
Ring = Send
Tip = Return
A/D
A/D
+1
-20dB
-12 to +30 dB
Line (1/4") input
+1dB @ ctr
Sig/OL
Red=Clip=+6dBV
-1
Ch1 Insert
Nom. -10dBV
Clip@+6dBV
CS5361
ADS21065L
Max. Level = +18dBV [input buffer clips]
Nom. Level = -1dBV
Min. Level = -46dBV for full output
Input-LINE
(Ch1 Vol+Master @ Max)
Ch1 Line Out
+1
3
12
Nom.: +6dBV (Balanced)
Clip@+24dBV "
BLOCK DIAGRAM - Signal Processing + Routing
Master
Level
Sig/OLSig/OL
Clip= -4dBV into A/D
Signal= -40dBV into A/D
Persistence = 100msec
BASS SPEAKER SENSING:
R=Open: Amp1&2 Wider-Band EQ
R=10K: 40-150Hz X-Over on Bass, >150Hz-Hi
R=5K: X-Over on Bass Ch, -6dB Hi Range
R<5K: Debug Mode: All outs flat, Limiter Off
Low
Mid
High
Amp In 3
250W@4 Ohms
+1dBV (1.1V) for
8/4 ohm Sense
2+
Rev:
+29dB
+5
1-
2-
0dB
+1
Power
Amp
Clip @ +30dBV
1+
(250W 4ohms)
Bass
Ch1 Ch2
8/4 ohm Sense
Amp3
2+
Ch1Ch2
PRESET
Amp In 2
+1
Amp
+29dB
1-
1+
2-
0 1
Bass Slave Sense
0 1
Amp In 1
0dB
Amp2
Power
LineSource Bottom
2+
+29dB
1-
2-
+1
Amp
1+
Power / Protect / Diagnostic
Master Vol Ctrl
+5
5
432
678
9
All-Amps
Input
5
9
Bass
Hi/Full Range
0dB
Amp1
Power
LineSource Top
Bass Send
1
432
678
+1
0dB
D/A
D/A
LPF
-1+1
1
-1.5dB
LPF
CS4392
-1.5dB
+20dB
+2.6dB @ 12:00
Level
20K 15A
Ch 4 IN
Ch 3 IN
Max. Level = +40dBV+
Nom. Level = -13dBV (pot @ ctr)
Min. Level = -30dBV for full output
+20dB
Level
20K 15A
U
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Test Procedures
PS1 Power Stand Tests
Equipment Required
•dB Meter
•Digital Multi-meter
•Audio Signal Generator
•Distortion Meter
•3 - 4 Ohm, 250 Watt Load Resistors
•Test cables, see Appendix
Overall PS1 System Tests
Notes:
1. Do not connect the R1 remote control for
the following tests, unless specified. Powering up the PS1 power stand without the
remote has the same effect as setting all of
the controls on the remote to the midpoint.
2. On the front panel of the PS1, set the
Channel 1 and Channel 2 Preset Select
switches to 00. Short out the 2+ and 2connections on the Amp 3 out connector
using the test cable described in section 1 of
the appendix of this manual. This will put the
PS1 into debug mode for the following tests.
In this mode the crossover, the compressor
and the EQ are disabled. The DSP will pass
a flat response. The level controls and the
clip indicators still operate in this mode.
3. Refer to Figure 10, PS1 Block Diagram,
for the following procedures.
1.4 Reference a dB meter to the input level.
Measure the gain output at the Amp 1 OUT
jack. It should be +48.5 dB
1.5 Move the shorting plug from the Amp 2
IN jack to the Amp 1 IN jack and repeat
steps 1.1 to 1.4 for the channel 2 Mic input.
2. Channel 1 and 2 Mic Input Frequency
Reponse and Distortion Tests
2.1 Place a 1/4” mono shorting plug into the
Amp 2 IN and Amp 3 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 2 and 3 amplifiers while
testing the channel 1 amplifier.
2.2 On the left hand side of the input/output
panel, set the channel 1 Mic Trim control to
the 6 setting. Ensure that the Phantom
Power push button is not pushed in.
2.3 Using a balanced XLR male input cable,
apply a 1 kHz, 31.6mVrms (-30dBV) signal
to the channel 1 input.
2.4 Use an 80kHz low-pass filter on your
measuring equipment. Reference a dB
meter to the input level. Measure the frequency response at the Amp 1 OUT jack. It
should be 0 dB + 3 dB from 30 Hz to 15 kHz.
+ 3 dB.
1. Channel 1 and 2 Mic Input Gain Tests
1.1 Place a 1/4” mono shorting plug into the
Amp 2 IN and Amp 3 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 2 and 3 amplifiers while
testing the channel 1 amplifier.
1.2 On the left hand side of the input/output
panel, set the channel 1 Mic Trim control to
the 6 setting. Ensure that the Phantom
Power push button is not pushed in.
1.3 Using a balanced XLR male input cable,
apply a 1 kHz, 31.6mVrms (-30dBV) signal
to the channel 1 input.
2.5 Measure the Total Harmonic Distortion
(THD) level at the Amp 1 OUT jack.
It should be 0.25% max at 1 kHz and 1.5%
max at 15 kHz.
2.6 Move the shorting plug from the Amp 2
IN jack to the Amp 1 IN jack and repeat
steps 2.1 to 2.5 for the channel 2 Mic input.
3. Channel 1 and 2 Mic Input Signal to
Noise Ratio (Dynamic Range) Tests
3.1 Place a 1/4” mono shorting plug into the
Amp 2 IN and Amp 3 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 2 and 3 amplifiers while
testing the channel 1 amplifier.
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Test Procedures
3.2 On the left hand side of the input/output
panel, set the channel 1 Mic Trim control to
the 6 setting. Ensure that the Phantom
Power push button is not pushed in.
3.3 Using a balanced XLR male input cable,
apply a 1 kHz, 31.6mVrms (-30dBV) signal
to the channel 1 input.
3.4 Reference a dB meter to the output level
at the Amp 1 OUT jack. Remove the input
signal and measure the A-Weighted output
level. It should be -80 dB minimum.
3.5 Move the shorting plug from the Amp 2
IN jack to the Amp 1 IN jack and repeat
steps 3.1 to 3.4 for the channel 2 Mic input.
4. Channel 1 and 2 Mic Input Phantom
Power Test
4.1 Plug an XLR connector into the channel
1 Mic input. Do not connect any cables to
the channel 1 or channel 2 Mic inputs.
Power on the unit.
4.2 Press the channel 1 phantom power
switch. Verify that the LED lights. Using a
DMM, measure the DC voltage level across
pins 1 and 2 of the XLR connector. Verify
that the DC level is +24Vdc + 1Vdc relative
to pin 1.
4.3 Measure the DC voltage level across
pins 1 and 3 of the XLR connector. Verify
that the DC level is +24Vdc + 1Vdc relative
to pin 1.
4.4 Repeat steps 4.1 to 4.3 for channel 2.
5. Channel 1 and 2 Line Input Gain Tests
5.1 Place a 1/4” mono shorting plug into the
Amp 2 IN and Amp 3 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 2 and 3 amplifiers while
testing the channel 1 amplifier.
5.2 On the left hand side of the input/output
panel, set the channel 1 Mic Trim control to
the 6 setting. Ensure that the Phantom
Power push button is not pushed in.
5.3 Using an unbalanced 1/4” phono jack
input cable, apply a 1 kHz, 316mVrms
(-10 dBV) signal to the channel 1 input.
5.4 Reference a dB meter to the input level.
Measure the gain output at the Amp 1 OUT
jack. It should be +28.5 dB + 4 dB.
5.5 On the signal generator, turn the input
level all the way down. Verify that the channel 1 Signal/OL LED is off. Increase the
signal generator level. Verify that the LED
lights green. Increase the signal level again
and verify that the LED lights red.
Note: You may have to increase the Mic
Trim level on the PS1 channel 1 input as
well to get the LED to light red.
5.5 Move the shorting plug from the Amp 2
IN jack to the Amp 1 IN jack and repeat
steps 5.1 to 5.5 for the channel 2 Line input.
6. Channel 1 and 2 Line Input Frequency
Reponse and Distortion Tests
6.1 Place a 1/4” mono shorting plug into the
Amp 2 IN and Amp 3 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 2 and 3 amplifiers while
testing the channel 1 amplifier.
6.2 On the left hand side of the input/output
panel, set the channel 1 Mic Trim control to
the 6 setting. Ensure that the Phantom
Power push button is not pushed in.
6.3 Using an unbalanced 1/4” phono jack
input cable, apply a 1 kHz, 316mVrms
(-10 dBV) signal to the channel 1 input.
6.4 Use an 80 kHz low-pass filter on your
measuring equipment. Reference a dB
meter to the input level. Measure the frequency response at the Amp 1 OUT jack.
It should be 0 dB + 3 dB from 30 Hz to
15 kHz.
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Test Procedures
6.5 Measure the Total Harmonic Distortion
(THD) level at the Amp 1 OUT jack. It should
be 0.25% max at 1 kHz and 1.5% max at
15 kHz.
6.6 Move the shorting plug from the Amp 2
IN jack to the Amp 1 IN jack and repeat
steps 6.1 to 6.5 for the channel 2 Line input.
7. Channel 1 and 2 Line Input Signal to
Noise Ratio (Dynamic Range) Tests
7.1 Place a 1/4” mono shorting plug into the
Amp 2 IN and Amp 3 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 2 and 3 amplifiers while
testing the channel 1 amplifier.
7.2 On the left hand side of the input/output
panel, set the channel 1 Mic Trim control to
the 6 setting. Ensure that the Phantom
Power push button is not pushed in.
7.3 Using an unbalanced 1/4” phono jack
input cable, apply a 1 kHz, 316mVrms
(-10 dBV) signal to the channel 1 input.
7.4 Reference a dB meter to the output level
at the Amp 1 OUT jack. Remove the input
signal and measure the A-Weighted output
level. It should be -80 dB minimum.
7.5 Move the shorting plug from the Amp 2
IN jack to the Amp 1 IN jack and repeat
steps 7.1 to 7.4 for the channel 2 Line input.
8. Channel 3 and 4 Line Input Gain Tests
8.1 Place a 1/4” mono shorting plug into the
Amp 1 IN and Amp 2 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 1 and 2 amplifiers while
testing the channel 3 amplifier.
8.3 On the left hand side of the input/output
panel, set the channel 3 Level control to the
6 setting.
8.4 Using an unbalanced 1/4” phono jack
input cable, apply a 1 kHz, 100mVrms
(-20 dBV) signal to the channel 3 Line input.
8.5 Reference a dB meter to the input level.
Measure the gain output at the Bass/Amp 3
OUT jack. It should be +40.1 dB + 3 dB.
8.6 Repeat steps 8.1 to 8.5 for the channel
4 Line input.
9. Channel 3 and 4 Line Input Frequency
Reponse and Distortion Tests
9.1 Place a 1/4” mono shorting plug into the
Amp 1 IN and Amp 2 IN jacks on the right
hand side of the input/output panel. This will
disable the channel 1 and 2 amplifiers while
testing the channel 3 amplifier.
9.2 Place a short across pins 2+ and 2- of
the bass module test cable. This will put the
power stand into the correct mode for this
test.
9.3 On the left hand side of the input/output
panel, set the channel 3 Mic Trim control to
the 6 setting.
9.4 Using an unbalanced 1/4” phono jack
input cable, apply a 1 kHz, 100mVrms
(-20 dBV) signal to the channel 3 Line input.
9.5 Use an 80 kHz low-pass filter on your
measuring equipment. Reference a dB
meter to the input level. Measure the frequency response at the Amp 1 OUT jack.
It should be 0 dB + 3 dB from 30 Hz to
15 kHz.
8.2 Place a short across pins 2+ and 2- of
the bass module test cable. This will put the
power stand into the correct mode for this
test.
9.6 Measure the Total Harmonic Distortion
(THD) level at the Bass/Amp 3 OUT jack.
It should be 0.25% max at 1 kHz and 1.5%
max at 15 kHz.
9.7 Repeat steps 9.1 to 9.6 for the channel
4 Line input.
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Test Procedures
10. Channel 3 and 4 Line Input Signal to
Noise Ratio (Dynamic Range) Tests
10.1 Place a 1/4” mono shorting plug into
the Amp 1 IN and Amp 2 IN jacks on the
right hand side of the input/output panel.
This will disable the channel 1 and 2 amplifiers while testing the channel 3 amplifier.
10.2 Place a short across pins 2+ and 2- of
the bass module test cable. This will put the
power stand into the correct mode for this
test.
10.3 On the left hand side of the input/
output panel, set the channel 3 Level
control to the 6 setting.
10.4 Using an unbalanced 1/4” phono jack
input cable, apply a 1 kHz, 316mVrms
(-10 dBV) signal to the channel 1 input.
10.5 Reference a dB meter to the output
level at the Bass/Amp 3 OUT jack. Remove
the input signal and measure the AWeighted output level. It should be -80 dB
minimum.
10.6 Repeat steps 10.1 to 10.5 for the
channel 4 Line input.
11. Channel 1 and 2 Remote Control,
Preset Switch and Insert Function Tests
11.4 With the audio playing, change the
channel 1 preset to 97 and back to 00. The
channel should mute gracefully when the
preset switch is operated. The audio should
fade back in again about a second after the
switch has stopped operating.
Note: Preset 97 is a 1 kHz band pass
(telephone-type sound). Preset 00 should
sound normal.
11.5 Operate all channel 1 controls on the
remote (high, mid, low, volume and master
volume). All tone controls should have a
clearly audible effect and operate smoothly.
Channel volume may display a little “zipper”
noise, which is normal.
Note: Channel volume all the way down
does not mute the channel, but the output
level should be very low. There is a small,
but noticeable time delay between operating
the control and the audible effect. This is
normal. The master volume control should
operate smoothly without any artifacts.
11.6 Insert a 1/4 inch phono jack all the way
into the channel 1 Insert jack. The audio
should sound normal.
11.7 Insert a 1/4 inch phono jack into the
channel 3 Line IN jack and operate the
volume control on the power stand. The
audio should sound normal.
11.1 Connect the PS1 power stand to a
known good L1 line array. Set the channel 1
preset switch to 00. Connect the remote
control to the unit using the remote control
MIDI cable supplied with the PS1.
11.2 Connect an analog audio source to the
Channel 1 line input 1/4 inch jack. This
source can be a CD player with a music
disc.
11.3 Adjust the trim level so that the LED is
lit mostly green. The audio should sound
normal.
11.8 Repeat steps 11.1 to 11.7 for the channel 2 input.
12. Channel 1 Send, Line Output and
Digital Output Tests
Note: For these tests you will need an
external device that can accept both 1/4
inch and XLR inputs. A small mixer, such
as a Mackie or Behringer with headphones
connected works well for this. The master
volume control on the PS1’s remote control
should be set all the way down to mute all
sound coming from the unit under test.
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Test Procedures
12.1 Connect the PS1 power stand to a
known good L1 line array. Set the channel 1
preset switch to 00. Connect the remote
control to the unit using the remote control
MIDI cable supplied with the PS1.
12.2 Connect an analog audio source to the
Channel 1 Line IN 1/4 inch jack. This source
can be a CD player with a music disc.
12.3 Adjust the trim level so that the LED is
lit mostly green. The audio should sound
normal.
12.4 Insert a 1/4 inch plug halfway into the
channel 1 Insert jack. The audio should
sound normal.
12.5 Connect the PS1 channel 1 XLR Line
OUT jack to the XLR input of the mixer. The
audio should sound normal.
Note: The PS1 puts out a “professional”
+4dBu level. You may have to turn the the
input trim control on the mixer all the way
down to prevent overloading the signal and
distorting it.
12.6 Connect the Data Out jack of the PS1
to a device that accepts a 48 kHz S/PDIF
data stream. The audio should sound normal.
13.4 Connect the audio source to the Amp 2
IN 1/4 inch phono jack. Verify that the audio
comes from the lower section of the L1 line
array. The audio should sound clean and
undistorted.
13.5 Connect a B1 bass module to the PS1
power stand at the Bass/Amp 3 OUT jack.
Connect the audio source to the Amp 3 IN
1/4 inch phono jack. Sound should come
from the bass module only and be clean and
undistorted.
13.6 Connect the audio source to the All
Amps IN 1/4 inch phono jack. Sound should
come from both of the L1 line array sections
and the bass module simultaneously. The
audio should be clear and undistorted.
14. High SPL System Sweep Test
CAUTION: This test will be extremely loud.
Hearing protection is advised.
14.1 Connect a R1 remote control to the
PS1 power stand under test. Set the channel 1 controls to mid-level. Set the master
volume control on the remote to the 1
o’clock position. Set the channel 1 Mic Trim
control on the PS1 to 6. Connect a L1 line
array to the PS1. Connect a B1 bass module to the PS1.
13. Power Amplifier Tests
13.1 Connect the PS1 power stand to a
known good L1 line array. Set the channel 1
preset switch to 00. Connect the remote
control to the unit using the remote control
MIDI cable supplied with the PS1.
13.2 Connect an analog audio source to the
Amp 1 IN 1/4 inch phono jack. This source
can be a CD player with a music disc.
13.3 Verify that the audio comes from the
upper section of the L1 line array. The audio
should sound clean and undistorted.
14.2 Connect a signal generator to the
channel 1 input on the PS1. Adjust the
signal generator and/or trim control so that
the Signal/OL LED is just below red.
14.3 Sweep the input frequency from 40 Hz
to 14 kHz. Listen for any unusual noises and
excessive distortion or drop-outs.
15. Bass Module Auto-EQ Test
15.1 Connect a L1 line array to the PS1
power stand. Connect an R1 remote control
to the power stand. Connect a B1 bass
module to the Bass/Amp 3 OUT jack on the
power stand. Connect an audio source to
the channel 1 and 2 inputs of the power
stand.
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Test Procedures
15.2 Set the channel 1 and 2 level controls
to identical settings so that both LEDs are
mainly green.
15.3 While the audio is playing, disconnect
the B1 bass module from the power stand.
The system should mute and un-mute and
audio should resume. The audio should
sound normal, but not punchy (no deep
bass).
15.4 Plug a dummy 1/4 inch phono jack into
the Bass Line Out jack. The system should
mute and un-mute again, but the audio
should sound thinner than before.
15.5 Remove the dummy plug. The system
should mute and un-mute and the audio
should sound normal again.
15.6 Re-connect the B1 bass module to the
power stand. The audio should mute and unmute again and sound normal.
15.7 Connect a second B1 bass module to
the first one. The audio should mute and unmute. The audio will sound very similar to
having only one bass module attached.
Disconnect the second bass module. The
system should mute and un-mute and the
audio should sound normal again.
L1 Line Array Tests
Set up the unit under test as shown below.
1. Air Leak Test
1.1 Apply a 100 Hz, 10 Vrms sine wave to
the unit under test.
1.2 Listen carefully for air leaks from around
the end cap, the transducers and the grille.
Air leaks will be heard as a hissing or sputtering sound. All repairs must be hidden.
Test duration should be 5 seconds minimum.
2. Transducer Rub and Tick Test
2.1 Remove the transducer you wish to test
using the disassembly procedures in this
manual. Do not unplug the wires at the
transducer assembly terminals.
2.2 Connect a signal generator directly to
the terminals of the transducer assembly
under test.
2.3 Apply a 20 Hz, 5 Vrms signal to the
transducer assembly.
2.4 Listen carefully for any extraneous
noises such as rubbing, scraping or ticking.
Note: To distinguish between normal suspension noise and rubs or ticks, displace the
cone slightly with your fingers. If the noise
stays the same, it is normal suspension
noise and the driver is good. Suspension
noise will not be heard with program material.
Audio Signal
Generator
Power Amplifier
INPUTOUTPUT
Upper or Lower
L1 Line Array
Upper or Lower L1
Line Array Test Cable
3. Transducer Phase Test
3.1 Apply a DC voltage of 10V, positive
applied to the positive tab of the dual
banana jack on the line array test cable and
negative applied to negative (gnd) tab.
3.2 All of the driver cones should move
outward when the DC voltage is applied.
3.3 Rewire any incorrectly connected transducers.
91
Page 92
Test Procedures
4. L1 Line Array Sweep Test
4.1 Set up the upper or lower line array
section as shown in the figure on the previous page.
4.2 Apply a 100 Hz, 10 Vrms sine wave to
the input.
4.3 While listening to the output of the
system, sweep the input frequency slowly
from 100 Hz to 15 kHz.
4.4 Listen carefully for any extraneous
noises such as buzzing and ticking.
B1 Bass Module Tests
Set up the unit under test as shown below.
Audio Signal
Generator
B1 Bass Module
2.2 Connect a signal generator directly to
the terminals of the transducer assembly
under test.
2.3 Apply a 10 Hz, 10 Vrms signal to the
transducer assembly.
2.4 Listen carefully for any extraneous
noises such as rubbing, scraping or ticking.
Note: To distinguish between normal suspension noise and rubs or ticks, displace the
cone slightly with your fingers. If the noise
stays the same, it is normal suspension
noise and the driver is good. Suspension
noise will not be heard with program material.
3. Transducer Phase Test
3.1 Apply a DC voltage of 20V, positive
applied to the positive tab of the dual
banana jack on the bass module test cable
and negative applied to negative (gnd) tab.
Power Amplifier
INPUTOUTPUT
B1 Bass Module
Test Cable
1. Air Leak Test
1.1 Apply a 100 Hz, 20 Vrms sine wave to
the unit under test.
1.2 Listen carefully for air leaks from around
the end cap, the transducers and the grille.
Air leaks will be heard as a hissing or sputtering sound. All repairs must be hidden.
Test duration should be 5 seconds minimum.
2. Transducer Rub and Tick Test
2.1 Remove the transducer you wish to test
using the disassembly procedures in this
manual. Do not unplug the wires at the
transducer assembly terminals.
3.2 Notice carefully that all driver cones
should move outward when the DC voltage
is applied.
3.3 Rewire any incorrectly connected transducers.
4. System Sweep Test
4.1 Set up the system as shown in the
figure at left.
4.2 Apply a 10 Hz, 20 Vrms sine wave to the
input.
4.3 While listening to the output of the
system, sweep the input frequency slowly
from 10 Hz to 400 Hz.
4.4 Listen carefully for any extraneous
noises such as buzzing and ticking.
92
Page 93
A
20A 125V
SW601
CN601
IEC
!
!
B
15A 125VAC
DT-4-3P
F601
!
CN602
!
C
D
12
L
E
N
L601
70uH 6Ts
!
L
E
N
( Earth GND)
EGND
C601
1uF 300V
VDR601
14D271K
!
220K 3W
R601
!
!
!
(16A)
L602
!
C602
1uF 300V
TH602
SCK2R515
3.8mH
C604
1n5
12
!
(16A)
3.8mH
L603
!
!
1n5
C603
!
12
SCK2R515
!
TH601
!
3
120V Version 1.0 Systems
FCC Filter PCB, Rev. F
PS1 Power Stand
P/N:
Sheet 1 of 1
4
275436
!
C606
1n5
(16A)
L604
1mH
2200uF 200V
!
C608
ACGND
(TO AUX PS AND +/-27V PS)
100K 1/2W
R604
!
(CN604,606,608,610)
ACGND
!
C605
1n5
!
DB601
MB354S
!
2200uF 200V
C607
(TO AUX PS AND +/-27V PS)
100K 1/2W
R603
!
(CN603,605,607,609)
V+
321
4
A
B
C
D
93
Page 94
14D471K
VDR601
220K 3W
R601
C
D
!
10A 250VAC
F601
!
B
DT-4-3P
CN602
!
L
E
N
A
15A 250V
CN601
IEC
1234
!
L
E
N
SW601
!
!
L601
70uH,6Ts
( Earth GND)
EGND
!
SCK0512
TH602
C601
1uF 300V
C602
1uF 300V
(16A)
1mH
1nF
1
2
!
1nF
L604
!
(16A)
C604
(16A)
C606
!
3.8mH
L602
!
L603
3.8mH
!
!
!
1nF
C603
!
1
SCK0512
!
TH601
2
!
!
C605
1nF
321
!
DB601
GL3506
120V Version 1.1 Systems
FCC Filter PCB, Rev. F
PS1 Power Stand
P/N: 283370
Sheet 1 of 1
A
2200uF 200V
C608
ACGND
(TO AUX PS AND +/-27V PS)
100K 1/2W
R604
(CN604,606,608,610)
ACGND
B
94
!
!
!
2200uF 200V
C607
(TO AUX PS AND +/-27V PS)
100K 1/2W
R603
!
(CN603,605,607,609)
4
V+
C
D
Page 95
14D471K
VDR601
220K 3W
R601
C
D
!
10A 250VAC
!
F601
B
DT-4-3P
CN602
!
L
E
N
A
15A 250V
CN601
IEC
1234
!
L
E
N
SW601
!
!
L601
70uH,6Ts
( Earth GND)
EGND
SCK0512
TH602
1uF 300V
!
C602
1uF 300V
(16A)
C601
1mH
1nF
1
2
!
1nF
L604
!
(16A)
C604
(16A)
C606
!
3.8mH
L602
!
L603
3.8mH
!
!
!
1nF
C603
!
1
SCK0512
!
TH601
2
!
!
C605
1nF
321
!
DB601
GL3506
230V Version 1.0 and 1.1 Systems
FCC Filter PCB, Rev. F
PS1 Power Stand
P/N: 283369
Sheet 1 of 1
A
2200uF 200V
!
C608
ACGND
(TO AUX PS AND +/-27V PS)
100K 1/2W
R604
!
(CN604,606,608,610)
ACGND
B
!
2200uF 200V
C607
(TO AUX PS AND +/-27V PS)
100K 1/2W
R603
!
(CN603,605,607,609)
V+
C
4
D
95
Page 96
18V
100p 1KV
C501
ETD39
T503
11.12
FB509
BYV32-200
D503
47R 2W
R513
2200uF 35V
2200uF 35V
C506
7
Z502
FB502FB504
C504
1K
R501
1nF
200uH
8
FB503
L501
(FROM EMI FILTER)
D
18V
51R
47R 2W
(CN502)
Z501
R508
C502
R512
(FROM EMI FILTER )
ACGND
(CN501)
V+
22uF 400V
C507
ACGND
C513
1nF
R507
51R
FB501
IRF840
Q501
IRF840
Q502
NOTE:
This schematic can be applied to three +/-27V power supplies
100uF/50V
4K7
D514
3K
8.2K
100n
R522
R503
C520
R531
C510
C
5
6
18V
Z504
18V
Z503
R502
1K
R509
R510
51R
51R
FB505
FB507
FB506
FB508
ACGND
IRF840
IRF840
Q504
Q503
UF4006
D502
UF4006
D501
7
R511
100/2W
3
!
FB511
FB513
47R 2W
R529
FB512
13.14
1nF
BYV32-200
D504
C524
15.16
47R 2W
1nF
2200uF 35V
2200uF 35V
R528
C505
C522
C525
9.10
FB510
1nF
C503
220R
TP502
Q507
2N3906
8
VREF
COMP
1
B
!
TT-9972
T501
1
4
C523
100n
D510
1N4148
R514
560R
6
IC501
UC2842B
OUT
7
VCC
VFB
2
C518
102
R525
200K
100n
C514
BD222/100C
TH501
MCR100-6
SCR501
2N3906
Q508
R530
22K
12
1N4148
R521
39K
A
1234567
ACGND
3
1
TT-9971
T502
!
5
6
100n
C508
39R
C516
103
1uF/50V
R520
C519
UF4003
D509
R519
240R
470R
1N4148
R523
12K
47K
R516
332
R515
2N3904
1N4148
C509
Q505
D506
D505
R517
33R
C515
123
C517
222
4
RT/CT
5
GND
ISEN
3
+/-27V Power Supply PCB, Rev. F
120V Version 1.0 Systems
PS1 Power Stand
Sheet 1 of 1
P/N:
273734
8
R524
D507
1N4148
D508
1N4148
D512
1N4148
R505
1K
A
B
R504
1K
TP501
1KB
R526
12K
SYN1
(or SYN2,SYN3)
47K
Q506
2N3904
Z506
30V
47K
FAULT
(FROM AUX PS CN615 or CN616,CN617)
R532
1N4148
D513
100n
R533
470R 0.5W
D515
1N4148
-15V
+24VD
(TO D AMP CN802A or CN806A,CN810A)
123
4
CN503
C
( Earth GND)
VSS
(-27V)
18V
C512
( Digital GND)
12K
Z505
DGND
EGND
R527
1N4148
D511
750R 1W
100n
R506
12K
R518
C511
(TO D AMP CN802A or CN806A,CN810A)
7654321
VDD
(+27V)
8
D
96
Page 97
A
12345678
ACGND
3
1
TT-9971
T502
!
5
6
100n
47R
C516
103
C508
C519
1uF/50V
R520
UF4003
D509
R519
240R
470R
1N4148
R523
12K
R516
47K
R515
2N3904
Q505
D505
D506
1N4148
R517
33R
TP502
220R
C515
153
4
C517
222
RT/CT
5
GND
ISEN
3
Q507
2N3906
8
VREF
COMP
1
680R
7
Z502
FB502FB504
1K
R501
1nF
200uH
FB503
L501
D
(FROM EMI FILTER)
ACGND
(CN502)
ACGND
8
18V
Z501
R507
51R
R508
51R
FB501
C502
R512
47R 2W
(FROM EMI FILTER )
(CN501)
V+
22uF 400V
C507
C513
1nF
IRF840
Q501
IRF840
Q502
NOTE:
This schematic can be applied to three +/-27V power supplies
C520
R531
C510
C
5
6
R511
FB511
18V
100p 1KV
C501
3
ETD39
T503
9.10
11.12
FB509
BYV32-200
D503
FB510
R513
47R 2W
1nF
C503
2200uF 35V
C504
2200uF 35V
C506
18V
Z504
18V
Z503
R502
1K
R509
R510
51R
51R
FB505
FB507
FB506
FB508
ACGND
IRF840
IRF840
Q504
Q503
UF4006
D502
UF4006
D501
7
100/2W
!
13.14
15.16
C524
1nF
BYV32-200
R528
R529
FB512
D504
47R 2W
1nF
2200uF 35V
C522
2200uF 35V
C525
C505
FB513
47R 2W
B
!
TT-9972
T501
1
4
R514
D510
1N4148
VCC
OUT
VFB
6
2
C523
100n
IC501
UC2842B
7
BD222/100C
TH501
2
C518
102
C514
200K
R525
100n
MCR100-6
SCR501
2N3906
Q508
100uF/50V
4K7
100n
R530
22K
1
D514
1N4148
R522
3K
R521
39K
R503
8.2K
230V Version 1.0 and 1.1 Systems
+/-27V Power Supply PCB, Rev. F
120V Version 1.1 Systems
PS1 Power Stand
P/N: 283371
Sheet 1 of 1
A
1N4148
D508
1N4148
D512
D507
1N4148
R524
47K
Q506
2N3904
R504
1K
TP501
1KB
R505
1K
SYN1
B
30V
R526
12K
(or SYN2,SYN3)
Z506
R532
47K
D515
1N4148
+24VD
FAULT
(FROM AUX PS CN615 or CN616,CN617)
-15V
123
4
CN503
C
12K
D513
1N4148
C512
100n
R533
470R 0.5W
( Digital GND)
(TO D AMP CN802A or CN806A,CN810A)
( Earth GND)
VSS
(-27V)
1N4148
D511
Z505
18V
R506
DGND
12K
R518
750R 1W
100n
C511
(TO D AMP CN802A or CN806A,CN810A)
VDD
(+27V)
7654321
8
D
R527
EGND
97
Page 98
A
B
C
D
560K
C642
240K
C610
R605
R607
EC28
12
V+
T601
!
(CN613)
(FROM EMI FILTER )
ACGND
(CN614)
(FROM EMI FILTER )
R617
1K
C616
GND
C618
RT/CT
ISEN
100n
R619
8K2
4
3
C619
103
R620
1K2
C615
100P 1KV
1M
8
VREF
UC2843AN
COMP
1
100n
BD222/100C
TH603
R618
IC601
C649
12
12
C617
222
ACGND
5
300P
0.47R 3W
R621
D604
UF4006
R616
2K2 1/2W
VCC
6
OUT
VFB
2
1N4148
7
D614
1N4148
R613
100R
MCR100-6
D603
56K
SCR601
R640
22R
R614
R606
560K
UF4006
D601
11
240K
3
ACGND
R608
ACGND
FB603FB602
1nF
82uF 400V
33K 2W
R609
33K 2W
R610
47nF 630V
C611
1
7
11
ACGND
C613
100n
Z601
18V
C612
100uF 50V
R615
22K
R612
22R
UF4003
D602
C614
1nF
R611
2R2
Q601
K2645
ACGND
11
5
6
9
8
10
3
5K1
Auxiliary Power Supply PCB, Rev. F
120V Version 1.0 Systems
PS1 Power Stand
P/N:
Sheet 1 of 2
4
274637
!
IC603
TL431
51K
R627
R624
IC602
PC817A
C621
100n
R622
1K
R623
10K
R626
100R
100n
R625
3K9
EGND
AGND
(Analog gnd)(Earth gnd)
!
2N3904
3K3
C620
1N4148
D613
(Digital gnd)
PC817A
Q604
R646
DGND
12K
IC606
4K7
R647
1N4148
D615
R645
R644
4K7
C652
1uF/50V
+5VD
1000uF 35V
C638
C639
1000uF 35V
FB609
R648
12K
D609
1N5822
22R 1/2W
R628
1nF
100n
FB608
C636
470uF 25V
470uF 25V
C641
C637
C640
31DQ10
D608
C634
R629 22R 1/2W
1nF
C635
100n
L611
30uH
D607 31DQ10
L61030uH
R630 47R 1/2W
C630
1nF
1000uF 35V
C631
C632
100n
L609
FB607
30uH
470uF 35V
C633
-15V
31DQ10
D606
R631
47R 1/2W
1nF
C626
1000uF 35V
C627
C628
100n
FB606
C629
470uF 35V
R639
4K7
470uF 35V
100n
FB605
L608
30uH
470uF 35V
100n
-15V
+5VD
+3.3VD
DGND
AGND
+15V
100R 2W
R632
1nF
C623
C624
FB604
C625
C648
8
C622
UF5404
D605
L607
30uH
FB610
+24VD
PROT
+24V
CN623
1234567
321
4
(TO MCU-1C CN409B)
A
B
C
D
98
Page 99
A
B
C
D
R637
FC
-15V
4K7
R638
+24VD
Q603
BD140
(TO FAN601)(TO FAN602) (TO FAN603)(TO FAN604)
CN618
1
2
321
CN619
1
2
CN620
1
2
12
R633
47K
R634
3K9
2
RST
14
3
CLK
2K
150P
Q013Q112Q211Q3
IC605A
CD4015
D
1
15
78
TP601
C643
13
CD4093
6
CD4093
2
CD4093
11
4
3
IC604IC605 1614
12
5
1
IC604A
IC604D
IC604B
1N4148
1N4148
9
CD4093
1N4148
D612
(TO THREE +/-27V PS CN503)
CN617
CLK
C645 150P
9
SYN2
Q05Q14Q23Q3
D
7
C644
150P
IC605B
CD4015
4
100n
C651
123
10
D610
D611
150P
8
SYN3
C646
IC604C
C650
100n
Z602
15V
4
10
R
6
4K7
123
47K
R643
2N3904
Q602
750R
R636
4K7
FB611
CN616
Failure
R635
R642
SYN1
4
CN615
123
2K
(FANS CONTROL)
+5VP
Auxiliary Power Supply PCB, Rev. F
120V Version 1.0 Systems
PS1 Power Stand
P/N:
Sheet 2 of 2
4
274637
A
CN621
1
2
+5VD
PROT
(TO D AMP CN812A)
CN622
123
(CN623-2)
4
B
C
D
99
Page 100
A
B
C
D
R605
C642
R607
EC28
12
V+
(CN613)
(FROM EMI FILTER )
T601
!
ACGND
(CN614)
(FROM EMI FILTER )
1234
C617
222
ACGND
5
C618
300P
0.47R 3W
R621
D604
UF4006
R616
2K2 1/2W
4
RT/CT
GND
ISEN
3
1K2
100n
R619
8K2
103
R620
100P 1KV
C616
C619
C615
8
VREF
UC2843AN
COMP
1
BD222/100C
TH603
1
1K
1M
IC601
100n
R617
R618
C649
VCC
OUT
VFB
6
2
1N4148
D614
1N4148
D603
R613
100R
7
56K
2
MCR100-6
R640
SCR601
22R
R614
R606
560K
ACGND
C613
100n
Z601
18V
240K
C612
100uF 50V
R615
22K
R612
22R
D602
UF4003
C614
1nF
Q601
K2645
ACGND
6
11
9
2R2
5
10
R611
UF4006
D601
3
8
11
R608
FB603FB602
ACGND
ACGND
7
560K
1nF
240K
82uF 400V
C610
33K 2W
R609
33K 2W
R610
47nF 630V
C611
1
11
TL431
5K1
Auxiliary Power Supply PCB, Rev. F
230V Version 1.0 and 1.1 Systems
120V Version 1.1 Systems
PS1 Power Stand
P/N: 283368
Sheet 1 of 2
51K
R627
!
IC603
R624
IC602
PC817A
C621
100n
R622
1K
R623
10K
R626
100R
100n
3K9
EGND
(Analog gnd)(Earth gnd)
AGND
C620
R625
IC606
PC817A
!
Q604
2N3904
R646
3K3
1N4148
12K
D613
(Digital gnd)
DGND
R647
R645
4K7
D615
1N4148
R644
4K7
C652
1uF/50V
+5VD
1000uF 35V
C638
C639
1000uF 35V
FB609
R648
12K
D609
1N5822
22R 1/2W
R628
1nF
100n
FB608
C636
470uF 25V
C641
470uF 25V
C637
C640
D608
31DQ10
R629 22R 1/2W
1nF
100n
L611
30uH
C634
C635
D607 31DQ10
L61030uH
R630 47R 1/2W
1nF
1000uF 35V
C631
100n
L609
FB607
30uH
470uF 35V
C633
-15V
47R 1/2W
C630
1000uF 35V
100n
C632
31DQ10
D606
R631
1nF
C626
C627
C628
FB606
C629
470uF 35V
R639
4K7
FB605
L608
30uH
-15V
+5VD
+3.3VD
DGND
AGND
+15V
100R 2W
R632
470uF 35V
C623
C624
100n
FB604
470uF 35V
C625
C648
100n
1nF
UF5404
D605
C622
321
L607
30uH
FB610
8
+24VD
PROT
+24V
1234567
CN623
4
(TO MCU-1C CN409B)
A
B
C
D
100
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