BOSE 1800V S2REV01 Schematic
Contents
Safety Information ............................................................................................................................3
Electrostatic Discharge Sensitive (ESDS) Device Handling .........................................................4
Supplement Description ...................................................................................................................4
Theory of Operation ..................................................................................................................... 5-6
Equalizer Card Curve Diagrams ...................................................................................................... 7
Figure 1. FreeSpace® 360 Surface EQ Curve ..................................................................................7
Figure 2. FreeSpace 360 In-Ground Soft Ground EQ Curve ............................................................ 7
Figure 3. FreeSpace 360 In-Ground Hard Ground EQ Curve ..........................................................7
Disassembly/Assembly Procedures ...............................................................................................8
Figure 4. Screw Location .................................................................................................................. 8
Figure 5. EQ Card Placement ...........................................................................................................8
Test Set up Procedures ....................................................................................................................9
Test Procedures ........................................................................................................................ 10-17
Part List Notes .................................................................................................................................18
EQ Card PCB Part Numbers and Product Codes........................................................................ 18
402® Series I Electrical Part List .............................................................................................. 19-20
402 Series II Electrical Part List .............................................................................................. 21-22
®
802
Series II Electrical Part List ............................................................................................ 23-24
802 Series III Electrical Part List ............................................................................................. 25-26
502®A Electrical Part List ......................................................................................................... 27-28
502B Electrical Part List ........................................................................................................... 29-30
502BEX Electrical Part List ...................................................................................................... 31-32
Model 1B Electrical Part List .................................................................................................... 33-35
Model 8 Electrical Part List ...................................................................................................... 36-37
Model 25/32 Electrical Part List................................................................................................ 38-39
Freespace 360 In Ground Electrical Part List......................................................................... 40-42
FreeSpace 360 Surface Electrical Part List ............................................................................ 43-44
Panaray® 3202® II Electrical Part List ..................................................................................... 45-47
Panaray 4402® II Electrical Part List ....................................................................................... 48-50
Panaray 9702® II Electrical Part List ....................................................................................... 51-53
Panaray LT II Electrical Part List............................................................................................. 54-55
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.
1
Contents (continued)
Packaging Part List .........................................................................................................................56
Figure 6. Packaging Exploded View ................................................................................................56
Figure 7. Bottom Side PCB Part Number 184844 ........................................................................... 57
Figure 8. Top Side PCB Part Number 184844 .................................................................................57
Figure 9. Bottom Side PCB Part Number 178860 ........................................................................... 58
Figure 10. Top Side PCB Part Number 178860...............................................................................58
Figure 11. Bottom Side PCB Part Number 190675 ......................................................................... 59
Figure 12. Top Side PCB Part Number 190675...............................................................................59
Figure 13. Bottom Side PCB Part Number 183071 ......................................................................... 60
Figure 14. Top Side PCB Part Number 183071...............................................................................60
Figure 15. 402
Figure 16. 402 Series II Schematic Diagram .................................................................................. 62
Figure 17. 802
Figure 18. 802 Series III Schematic Diagram.................................................................................64
Figure 19. 502®A Schematic Diagram.............................................................................................65
Figure 20. 502B Schematic Diagram ..............................................................................................66
Figure 21. 502BEX Schematic Diagram ......................................................................................... 67
Figure 22. Model 1B Schematic Diagram........................................................................................68
Figure 23. Model 8 Schematic Diagram ..........................................................................................69
Figure 24. Model 25/32 Schematic Diagram ...................................................................................70
Figure 25. FreeSpace® 360 Surface Schematic Diagram ...............................................................71
Figure 26. FreeSpace 360 In Ground Schematic Diagram ............................................................. 72
Figure 27. Panaray® 3202® LT II Schematic Diagram ..................................................................... 73
Figure 28. Panaray 4402® LT II Schematic Diagram ....................................................................... 74
Figure 29. Panaray 9702® LT II Schematic Diagram ....................................................................... 75
Figure 30. Panaray LT II Schematic Diagram .................................................................................76
®
Series I Schematic Diagram .................................................................................61
®
Series II Schematic Diagram ................................................................................ 63
CAUTION: THE EQ PCB ASSEMBLIES CONTAIN NO USER-SERVICEABLE PARTS. TO
PREVENT WARRANTY INFRACTIONS, REFER SERVICING TO WARRANTY SERVICE
STATIONS OR FACTORY SERVICE.
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. Refer to Paragraph 84 of UL 1270. 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) 1492 (71). With the unit AC switch first in the ON position, then in the
OFF position, measure from a known earth ground (metal water pipe,
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 HAZ ARD 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 be-
tween the jumpered AC plug and each exposed metallic cabinet part on the
unit. When the exposed metallic part has a return path to the chassis, the
reading should be between 1 and 5.2 Megohms. When there is no return path
to the chassis, the reading must be “infinite”. If it is not within the limits specified,
there is the possibility of a shock hazard, and the unit must be repaired and re checked before it is returned to the customer.
3
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.
SUPPLEMENT DESCRIPTION
This supplement should be used along with either the 1800V service manual part number
181812 or the 1600 VI/1800 VI service manual part number 199747. The disassembly/assembly procedures, and packing part list should be used along with the information in this manual.
The test procedures were included in this manual for your convenience.
This supplement replaces the following supplements: 181812-S2, 181812-S3, 181812-S6
and 181812-S7.
4
THEORY OF OPERATION
These Equalizer cards are designed to be installed into the AmPlus™ 50 and 100 amplifiers
and the Bose® 1600 Series VI and 1800 Series V/VI amplifiers. The EQ cards included in this
service manual are as follows; 402
III, Model 1B, Model 8, Model 25/32, Panaray
FreeSpace® 360 Surface and In Ground.
The FreeSpace 360 loudspeaker requires equalization, and this equalization is a function of the
installation. There are two variants of the card that implement EQ curves for these
installation situations:
• In Ground (when the FreeSpace 360 loudspeaker is mounted in the ground).
The appropriate EQ curve for soft or hard ground is selected with a slide switch on the card.
When S1 is in the SOFT position, the Soft Ground EQ is used; when S1 is in the HARD
position, the Hard Ground EQ is used.
• In the Surface variant, S1 is omitted and jumpered to the SURFACE position.
Note: Refer to the FreeSpace 360 Surface or In-Ground schematic diagrams, as appropriate,
for the following explanation. The designators inside the brackets "[ ]" are the schematic grid
coordinates which are provided in order to make it easier to locate components on the
schematic sheet indicated in the description. Components shown on the schematic as
OPT (optional) are not used in that particular configuration. Also refer to the EQ curves on
page 7 of this manual for an overview of the frequency response of each of the 360 applications.
The input signal is applied to these cards at JP1 pin 4. The first section at the input, U2-B [D7],
combines a first order high-pass filter with one section of a parametric cut filter. The parametric
is set for -15dB at 27 Hz and provides a steep slope below about 80 Hz The equalization is
segmented, with one block (U2 and U1), all sections [D1-8] dedicated to bass region equalization. Following the output of this section, U2-A [D1], the signal is presented to two parallel
equalization paths, one comprised of U3 [B4-7], U4-B [C3], and dedicated to EQ for mounting in
soft ground of the FreeSpace 360 loudspeaker. The other path, comprised of U5 [B4-7],
U4-A [B3] provides equalization for the FreeSpace 360 loudspeaker in hard ground installations. In the case of the FreeSpace Surface EQ card, the bottom leg of the equalizer card is not
used.
The operation of all three equalizers is similar. Considering the bass equalizer, we see U2-B's
[D7] output passed through R8 [D7] and into the non-inverting input of U2-A [D2]. This input is
extended as a bus to which EQ sections Bass 1 [D6] and Bass 2 [D5] are connected. These
will introduce dips into the audio response to provide bass cut as required. Sections Bass 3
[D4] and Bass 4 [D3] are connected to a bus extended from the inverting input of U2-A [D2]
and provide bass boost. See Figures 1,2 and 3 for the EQ curves for the various equalizer
cards.
Each of the EQ sections utilizes a gyrator-connected op-amp in conjunction with a series
capacitance to simulate an LCR series tuned circuit. The values of the capacitors and resistors
are chosen to implement EQ dips and/or peaks at the appropriate frequency, amplitude and Q
to realize the desired EQ curves. On the In-Ground EQ card, S1 [B2] selects either the HARD
or the SOFT mount EQ curve.
The output signal is taken from JP1 pin 5, and returns to the amplifier. The equalizer cards are
sensed by the amplifiers as follows. In the AmPlus 50 and 100 amplifiers, Pin 12 of J1 [B2] is
grounded and is sensed by the dynamic EQ circuit on sheet 2 of the AmPlus 50 and 100
schematic diagrams. In the 1600/1800 amplifiers, the input module detects the presence of EQ
cards via J7-6 and J6-6. Without the card installed these pins are pulled high (+15V). This logic
high signal is also applied to the control pins of the switch ICs which selects the A
(unequalized) input. When an EQ is plugged into J7 and/or J6 pin 6, the EQ is detected and
pulls the control pin low (+7.5V), turning on the corresponding LED(s) and switching the IC to
the B input which will then select the output of the EQ card to be passed on to the amplifier.
®
series I and II, 502®A, 502B, 502BEX, 802® series II and
®
LT series II 3202®, 4402®, 9702®, and
5
THEORY OF OPERATION
The Model 1B EQ card is intended for use in the AmPlus™ 50 and 100 amplifiers as well as the
1800 V, 1600 and 1800 VI professional amplifiers. It accepts a full range (50 Hz to 16 kHz)
signal, equalizes it, and passes a full range signal back to the main amplifier signal path.
®
Refer to the FreeSpace
information.
Note: The designators inside the brackets “[ ]” are the schematic grid coordinates which are
provided in order to make it easier to locate components on the schematic sheet indicated in
the description.
The equalization is segmented, with one block (U2 and U1, all sections [D1-8]) dedicated to
bass region equalization for the Model 1B Bass module. Following the output of this section,
U2A [D1], the signal is presented to two parallel equalization paths, one comprised of U3 [B47], U4A [4-7], U4B [C3], and dedicated to EQ for surface mounted Bose
satellite speakers (Model 25 and 32). The other path, comprised of U5 [B4-7], U4A [B3] provides equalization for Bose Model 8 flush-mount satellite speakers.
The operation of all three equalizers is similar. Considering the bass equalizer, we see U2B’s
[D7] output passed through R8 [D7] and the non-inverting input of U2A [D2]. This input is
extended as a bus to which EQ sections bass 1 [D6] and Bass 2 [D5] are connected. These
will introduce dips into the audio response. Section Bass 3 [D4] is connected to a potentiometer
straddling U2A non-inverting and inverting inputs. When the wiper is moved toward the noninverting input, the section introduces a dip; when moved toward the inverting input, a peak.
Model 1B EQ card schematic diagram, sheet 1 of 1 for the following
®
FreeSpace System
Each of the EQ sections utilizes a gyrator-connected op amp in conjunction with a series
capacitor to simulate an LCR series tuned circuit. The values of the capacitors and resistors
are chosen to implement EQ curves. Each EQ section has optional steering resistors that
could allow other curves to be implemented in the future with the same card. There are also
some spare sections not currently used.
S1 [B2] selects either the FLUSH or the SURFACE mount EQ curve, while potentiometer R33
[D1] provides a boost/cut range of adjustment of the 90 Hz bass region.
6
EQUALIZER CARD CURVE DIAGRAMS
Figure 1. FreeSpace® 360 Surface EQ Curve
Figure 2. FreeSpace 360 In-Ground Soft Ground EQ Curve
Figure 3. FreeSpace 360 In-Ground Hard Ground EQ Curve
7
DISASSEMBLY/ASSEMBLY PROCEDURES
1. Input Panel Removal
1.1 Remove the two screws (see figure 4)
holding the panel assembly to the chassis.
1.2 Slide the input panel assembly out of
the chassis to access the EQ cards.
2. Input Panel Replacement
2.1 Slide the input panel assembly back into
the chassis (see figure 5. for proper alignment).
2.2 Secure the input panel to the chassis
using the two screws that had been removed in procedure 1.1.
3. EQ Card Placement
Figure 4. Screw Location
Note: Refer to figure 5. for EQ Card place-
ment.
3.1 Perform procedure 1.
3.2 Place the EQ card into the channel 1 or
2 connector. The connector can be inserted
in only one direction.
3.3 Perform procedure 2.
Figure 5. EQ Card Placement
8
TEST SET UP PROCEDURES
1. Install the equalizer card under test into one of the equalizer card jacks located on the input
module of the Bose® 1600 or 1800 series amplifier. Refer to the disassembly/assembly procedures on the previous page.
2. On the amplifier input module, place switch SW1 to the NORM position. Place switch S2 to
the FULL BANDWIDTH position.
3. The input voltage shall be the actual input voltage present at the input, not the open circuit
generator input.
9
TEST PROCEDURES
1. Panaray
4402®, 9702®,LT Frequency Response Test
1.1 Apply a 100 mVrms, 700 Hz signal to
the input jack of the amplifier channel under
test.
1.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
1.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
1.4 Turn on the amplifier and measure the
response according to the gain chart listed
below.
1.5 Reference a dB meter to the output after
step 1.4 and measure the response of the
EQ card according to the corresponding
chart on this page.
3202 II
4402 II
9702 II
LT II
3202 II EQ Frequency Response
®
Series II EQ PCB 3202®,
EQ Gain Response
+7.0 dB ± 1.0 dB
+5.0 dB ± 1.0 dB
+2.6 dB ± 1.0 dB
+2.7 dB ± 1.0 dB
4402 II EQ Frequency Response
Frequency Output Level
50 Hz -27.4 dB ± 3 dB
150 Hz -2.2 dB ± 1.5 dB
250 Hz 1.7 dB ± 1.5 dB
500 Hz -0.9 dB ± 1.5 dB
700 Hz 0 dB
Reference
1 kHz 1.3 dB ± 1.5 dB
2 kHz -0.3 dB ± 1 dB
3 kHz 0.6 dB ± 1 dB
7 kHz -1.5 dB ± 1.5 dB
13 kHz 0 dB ± 1.5 dB
30 kHz -26 dB ± 3 dB
9702 II EQ Frequency Response
Frequency Output Level
50 Hz -23 dB ± 3 dB
100 Hz -2.4 dB ± 1.5 dB
180 Hz +5.2 dB ± 2 dB
550 Hz -1.5 dB ± 1 dB
700 Hz 0 dB
Reference
1.1 kHz +2.3 dB ± 1 dB
1.8 kHz +3.8 dB ± 1 dB
3 kHz +4.8 dB ± 1 dB
6.5 kHz +4.5 dB ± 1.5 dB
11.5 kHz +3.8 dB ± 1.5 dB
30 kHz -22 dB ± 3 dB
Frequency Output Level
50 Hz -27 dB ± 3 dB
100 Hz -6.0 dB ± 1.5 dB
200 Hz 3.0 dB ± 1.5 dB
400 Hz -1.5 dB ± 1 dB
700 Hz 0 dB
Reference
900 Hz 0.5 dB ± 1 dB
3,250 Hz -6.5 dB ± 1.5 dB
6.4 kHz -6.5 dB ± 1.5 dB
13 kHz -4.3 dB ± 1.5 dB
30 kHz -27 dB ± 3 dB
LT II System EQ Frequency Response
Frequency Output Level
40 Hz -31.7 dB ±3 dB
100 Hz -1.9 dB ±1 dB
190 Hz 7.0 dB ±2dB
300 Hz 2.5 dB ±1 dB
700 Hz 0 dB
Reference
2 kHz -0.4 dB ±1 dB
4 kHz -2.0 dB ±2 dB
10 kHz -30.7 dB ±3 dB
10
TEST PROCEDURES
2. 402® EQ PCB Frequency Response Test
2.1 Apply a 100 mVrms, 850 Hz signal to
the input jack of the amplifier channel under
test.
2.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
2.3 Shut off the amplifier. Open the input panel
and switch the high frequency/full range
switch (S2) to the full range position.
Insert the EQ card.
2.4 Turn on the amplifier and measure the
gain. There should be a - 3.4 dB ± 1.0 dB
change in gain at the output.
2.5 Reference a dB meter and measure
the response of the EQ card according to
the 402 EQ Full Range Response chart.
3. 402 II EQ PCB Frequency Response Test
3.1 Apply a 100 mVrms, 850 Hz signal to
the input jack of the amplifier channel under
test.
3.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
3.3 Shut off the amplifier. Open the input panel
and switch the high frequency/full range
switch (S2) to the full range position. Insert
the EQ card.
3.4 Turn on the amplifier and measure the gain.
There should be a - 4.2 dB ± 1.0 dB change in
gain at the output.
3.5 Reference a dB meter and measure
the response of the EQ card according to the
402 II EQ Full Range Response chart.
2.6 Shut off the amplifier. Open the input panel
and switch (S2) to the high frequency position.
2.7 Measure the response according to
the 402 EQ High Frequency Response chart.
402 EQ Full Range Frequency Response
Frequency Output Level
60 Hz -3.7 dB ± 1.5 dB
105 Hz +8.5 dB ± 1.5 dB
220 Hz +3.5 dB ± 1.5 dB
850 Hz 0 dB
Reference
4 kHz +5.8 dB ± 1.5 dB
14.5 kHz +13.3 dB ± 1.5 dB
402 EQ High Frequency Response
Frequency Output Level
60 Hz -16.4 dB ± 1.5 dB
105 Hz -5.2 dB ± 1.5 dB
220 Hz +2.8 dB ± 1.5 dB
850 Hz 0 dB
Reference
4 kHz +5.8 dB ± 1.5 dB
14.5 kHz +13.3 dB ± 1.5 dB
3.6 Shut off the amplifier. Open the input panel
and switch (S2) to the high frequency position.
3.7 Measure the response according to the
402 II EQ High Frequency Response chart.
402 II EQ Full Range Frequency Response
Frequency Output Level
60 Hz +3.2 dB ± 1.5 dB
90 Hz +10.0 dB ± 1.5 dB
220 Hz +7.3 dB ± 1.5 dB
600 Hz -2.4 dB ± 1.5 dB
850 Hz 0 dB
Reference
4 kHz +5.6 dB ± 1.5 dB
13.5 kHz +15.5 dB ± 1.5 dB
402 II EQ High Frequency Response
Frequency Output Level
60 Hz -13.0 dB ± 1.5 dB
90 Hz -5.6 dB ± 1.5 dB
220 Hz +6.8 dB ± 1.5 dB
600 Hz -2.4 dB ± 1.5 dB
850 Hz 0 dB
Reference
4 kHz +5.6 dB ± 1.5 dB
13.5 kHz +15.5 dB ± 1.5 dB
11
TEST PROCEDURES
®
4. 502
Test
502A EQ Full Range Frequency Response
A EQ PCB Frequency Response
4.1 Apply a 100 mVrms, 600 Hz signal to
the input jack of the amplifier channel under
test.
4.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
4.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
4.4 Turn on the amplifier and measure the
gain. There should be a +2.5 dB ± 1.0 dB
change in gain at the output.
4.5 Reference a dB meter and measure
the response of the EQ card according to
the 502A Full Range Response chart.
4.6 Shut off the amplifier. Open the input
panel and switch (S2) to the high frequency
position.
4.7 Measure the response according to
the 502A High Frequency Response chart.
502A EQ High Frequency Response
Frequency Output Level
40 Hz -28.5 dB ± 2.0 dB
140 Hz +2.9 dB ± 1.5 dB
600 Hz 0 dB
Reference
2.2 kHz +3.5 dB ± 1.5 dB
5 kHz +12.5 dB ± 1.5 dB
15 k Hz +19.0 dB ± 1.5 dB
5. 502B EQ PCB Frequency Response Test
5.1 Apply a 100 mVrms, 80 Hz signal to the
input jack of the amplifier channel under test.
5.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
5.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
5.4 Turn on the amplifier and measure the
gain. There should be an +8.5 dB ± 1.0 dB
change in gain at the output.
5.5 Reference a dB meter and measure
the response of the EQ card according to
the 502B EQ Response chart.
Frequency Output Level
40 Hz -24.5 dB ± 2.0 dB
140 Hz +4.3 dB ± 1.5 dB
600 Hz 0 dB
Reference
2,2 kHz +3.5 dB ± 1.5 dB
5 kHz +12.5 dB ± 1.5 dB
15 kHz +18.4 dB ± 1.5 dB
502B EQ PCB Frequency Response
Frequency Output Level
40 Hz -5.8 dB ± 2.0 dB
80 Hz 0 dB
Reference
100 Hz +1.3 dB ± 1.0 dB
300 Hz -17.5 dB ± 2.0 dB
12
TEST PROCEDURES
®
6. 502
Test
502BEX EQ PCB Frequency Response
BEX EQ PCB Frequency Response
6.1 Apply a 200 mVrms, 100 Hz signal to
the input jack of the amplifier channel under
test.
6.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
6.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
6.4 Turn on the amplifier and measure the
gain. There should be an +4.2 dB ± 1.0 dB
change in gain at the output.
6.5 Reference a dB meter and measure
the response of the EQ card according to
the 502B EQ Response chart.
7.4 Place the switch (S1) on the Model 1B
EQ PCB to the FLUSH position. Rotate the
pot R33 fully CW.
7.5 Turn on the amplifier and measure the
gain. There should be an +2.8 dB ± 1.0 dB
change in gain at the output.
7.6 Reference a dB meter and measure
the response of the EQ card according to
the Model 1B Flush EQ Response chart.
Model 1B EQ PCB Flush Frequency
Response
Frequency Output Level
60 Hz +4.25 dB ± 1.5 dB
100 Hz +3.3 dB ± 1.5 dB
200 Hz +0.5 dB ± 1.5 dB
500 Hz +5.25 dB ± 1.5 dB
1 kHz 0 dB
Reference
2 kHz -1.0 dB ± 1.5 dB
8 kHz +7.75 dB ± 1.5 dB
10 kHz +9.5 dB ± 2.5 dB
Frequency Output Level
30 Hz -15.2 dB ± 2.0 dB
55 Hz +2.3 dB ± 1.4 dB
100 Hz 0 dB
Reference
160 Hz - 6.8 dB ± 1.0 dB
240 Hz -0.8 dB ± 1.2 dB
500 Hz -11.6 dB ± 2.0 dB
7. Model 1B EQ PCB Flush Frequency
Response Test
7.1 Apply a 200 mVrms, 100 Hz signal to
the input jack of the amplifier channel under
test.
7.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
7.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
7.7 Shut off the amplifier and place the
switch (S1) on the Model 1B EQ PCB to the
SURFACE position.
7.8 Replace the input card into the amplifier
and turn the amplifier on.
7.9 Reference a dB meter and measure
the response of the EQ card according to
the Model 1B EQ Surface Frequency
Response chart.
Model 1B EQ Surface Frequency
Response
Frequency Output Level
200 Hz +0.5 dB ± 1.5 dB
500 Hz +0.6 dB ± 1.5 dB
1 kHz 0 dB
Reference
2 kHz -1.3 dB ± 1.5 dB
8 kHz +7.6 dB ± 1.5 dB
10 kHz +7.8 dB ± 2.5 dB
13
TEST PROCEDURES
8. 802
®
EQ PCB Frequency Response Test
8.1 Apply a 100 mVrms, 700 Hz signal to the
input jack of the amplifier channel under test.
8.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
8.3 Shut off the amplifier. Open the input panel
and switch the high frequency/full range
switch (S2) to the full range position. Insert
the EQ card.
8.4 Turn on the amplifier and measure the
gain. There should be a +1. 7 dB ± 1.0 dB
change in gain at the output.
8.5 Reference a dB meter and measure the
response of the EQ card according to the 802
Full Range Response chart on this page.
8.6 Shut off the amplifier. Open the input panel
and switch the high frequency/full range
switch (S2) to the high frequency position.
8.7 Measure the response according to the
802 EQ High Frequency Response.
802 EQ PCB Full Range Frequency
Response
Frequency Output Level
40 Hz +8.0 dB ± 1.5 dB
55 Hz +13.5 dB ± 1.5 dB
140 Hz +6.6 dB ± 1.5 dB
700 Hz 0 dB
Reference
2.5 kHz +2.1 dB ± 1.5 dB
6 kHz +9.6 dB ± 1.5 dB
14.5 kHz +16.7 dB ± 1.5 dB
802 EQ PCB High Frequency Response
Frequency Output Level
40 Hz -21.0 dB ± 1.5 dB
60 Hz -11.5 dB ± 1.5 dB
700 Hz 0 dB
Reference
2.5 kHz +2.1 dB ± 1.5 dB
6 kHz +9.6 dB ± 1.5 dB
14.5 kHz +16.7 dB ± 1.5 dB
9. 802 III EQ PCB Frequency Response Test
9.1 Apply a 100 mVrms, 700 Hz signal to the
input jack of the amplifier channel under
test.
9.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
9.3 Shut off the amplifier. Open the input panel
and switch the high frequency/full range
switch (S2) to the full range position. Insert
the EQ card.
9.4 Turn on the amplifier and measure the gain.
There should be a +1. 7 dB ± 1.0 dB change
in gain at the output.
9.5 Reference a dB meter and measure
the response of the EQ card according to the
802 III Full Range Response chart.
9.6 Shut off the amplifier. Open the input panel
and switch the high frequency/full range
switch (S2) to the high frequency position.
9.7 Measure the response according to
the 802 III EQ High Frequency Response.
802 III EQ PCB Full Range Frequency
Response
Frequency Output Level
40 Hz +1.9 dB ± 1.5 dB
70 Hz +13.5 dB ± 1.5 dB
140 Hz +7.5 dB ± 1.5 dB
700 Hz 0 dB
Reference
2.5 kHz +1.8 dB ± 1.5 dB
6 kHz +6.9 dB ± 1.5 dB
13 kHz +13.8 dB ± 1.5 dB
802 III EQ PCB High Frequency Response
Frequency Output Level
40 Hz -24.9 dB ± 1.5 dB
70 Hz -10.6 dB ± 1.5 dB
140 Hz +5.2 dB ± 1.5 dB
700 Hz 0 dB
Reference
2.5 kHz +1.9 dB ± 1.5 dB
6 kHz +7.0 dB ± 1.5 dB
13 kHz +13.9 dB ± 1.5 dB
14
TEST PROCEDURES
10. Model 8 EQ PCB Frequency Response
Test
10.1 Apply a 100 mVrms, 1 kHz signal to
the input jack of the amplifier channel under
test.
10.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
10.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
10.4 Turn on the amplifier and measure the
gain. There should be a -3.5 dB ± 1.0 dB
change in gain at the output.
10.5 Reference a dB meter and measure
the response of the EQ card according to
the Model 8 Full Range Response chart
below.
11. Model 25/32 EQ PCB Frequency
Response Test
11.1 Apply a 100 mVrms, 1 kHz signal to
the input jack of the amplifier channel under
test.
11.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed..
11.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Insert the EQ card.
11.4 Turn on the amplifier and measure the
gain. There should be a -4.8 dB ± 1.0 dB
change in gain at the output.
11.5 Reference a dB meter and measure
the response of the EQ card according to
the Model 25/32 Full Range Response.
Model 8 Frequency Response
Frequency Output Level
95 Hz +11.3 dB ± 1.5 dB
250 Hz +4.5 dB ± 1.5 dB
1 kHz 0 dB
Reference
2 kHz +3.0 dB ± 1.5 dB
4 kHz +7.0 dB ± 1.5 dB
8 kHz +10.5 dB ± 1.5 dB
12.5 kHz +11.75 dB ± 2.5 dB
Model 25/32 Frequency Response
Frequency Output Level
95 Hz +12.3 dB ± 1.5 dB
250 Hz +4.4 dB ± 1.5 dB
1 kHz 0 dB
Reference
2 kHz +1.7 dB ± 1.5 dB
4 kHz +7.6 dB ± 1.5 dB
8 kHz +12.0 dB ± 1.5 dB
12.5 kHz +15.0 dB ± 2.5 dB
15
TEST PROCEDURES
12. FreeSpace® 360 In Soft Ground
Frequency Response Test
12.1 Apply a 100 mVrms, 1 kHz signal to
the input jack of the amplifier channel under
test.
12.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
12.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
Switch the switch on the EQ card to the
SOFT position and insert the EQ card.
12.4 Turn on the amplifier and measure the
gain. There should be a 0.0 ± 1.0 dB
change in gain at the output.
12.5 Reference a dB meter and measure
the response of the EQ card according to
the In Soft Ground Frequency Response
chart.
In Soft Ground Frequency Response
Frequency Output Level
30 Hz -10.3 dB ± 1.5 dB
180 Hz +9.5 dB ± 1.5 dB
190 Hz +7.8 dB ± 1.5 dB
1 kHz 0 dB
Reference
3 kHz +8.1 dB ± 1.0 dB
4 kHz +7.8 dB ± 1.0 dB
10 kHz +16.4 dB ± 2.5 dB
13.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
NOTE: Switch the switch (S1) on the EQ
card to the HARD position and insert the
EQ card.
13.4 Turn on the amplifier and measure the
gain. There should be a -2.1 ± 1.0 dB
change in gain at the output.
13.5 Reference a dB meter and measure
the response according to the In Hard
Ground Frequency Response chart.
In Hard Ground Frequency Response
Frequency Output Level
30 Hz -8.3 dB ± 1.5 dB
90 Hz +9.8 dB ± 1.5 dB
180 Hz +11.2 dB ± 1.0 dB
800 Hz +0.8 dB ± 1.0 dB
1 kHz 0 dB
Reference
3 kHz +8.1 dB ± 1.0 dB
4 kHz +8.7 dB ± 1.0 dB
10 kHz +18.2 dB ± 2.5 dB
13. FreeSpace 360 In Hard Ground
Frequency Response Test.
13.1 Apply a 100 mVrms, 1 kHz signal to
the input jack of the amplifier channel under
test.
13.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
16
TEST PROCEDURES
14. FreeSpace® 360 Surface EQ PCB
Frequency Response Test.
14.1 Apply a 100 mVrms, 1 kHz signal to
the input jack of the amplifier channel under
test.
14.2 Adjust the amplifier volume controls to
maximum and reference a dB meter to the
output. No EQ card installed.
14.3 Shut off the amplifier. Open the input
panel and switch the high frequency/full
range switch (S2) to the full range position.
NOTE: Switch the switch (S1) on the EQ
card to the SOFT position and insert the
EQ card.
14.4 Turn on the amplifier and measure the
gain. There should be a +1.0 ± 1.0 dB
change in gain at the output.
14.5 Reference a dB meter and measure
the response of the EQ card according to
the Surface Frequency Response chart.
15. Distortion Test
15.1 Apply a signal from the chart below to
the input jack of the amplifier channel under
test.
15.2 Measure the distortion level at the
output of the amplifier. It should be £ 0.1%
THD.
Product Input Level Frequency
402
402
II
802
II
802
III
502A
502B 700 mVrms 80 Hz
502BEX 4.5 Vrms 100 Hz
M 1B 750 mVrms 1 kHz
M 8 750 mVrms 1 kHz
M 25/32 750 mVrms 1 kHz
3202
4402
9702
1.4 Vrms 850 Hz
1.4 Vrms 850 Hz
750 mVrms 700 Hz
750 mVrms 700 Hz
730 mVrms 600 Hz
II
II
II
4 Vrms 320 Hz
4 Vrms 320 Hz
4 Vrms 320 Hz
360 Surface Frequency Response
Frequency Output Level
30 Hz -8.8 dB ± 1.5 dB
90 Hz +7.2 dB ± 1.5 dB
180 Hz +11.0 dB ± 1.5 dB
900 Hz +0.2 dB ± 1.5 dB
1 kHz 0 dB
Reference
2 kHz +0.4 dB ± 1.5 dB
5 kHz +6.7 dB ± 1.0 dB
10 kHz +17.9 dB ± 2.5 dB
17
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 connector is used on the 502®B EQ PCB only.
EQ CARD PCB
PART NUMBERS AND PRODUCT CODES
PCB Part Number Description Product Code
177333
258111
177356
258115
177342 502A EQ Card 009082
177349 502B EQ Card 009081
191921 502BEX EQ Card 019551
183111-001
183123-001
183105-001
183117-001
190670-001E Model 1B EQ Card 019509
184825 Model 8 EQ Card 015134
183744 Model 32 EQ Card 011687
198379-0011E
198383-0011E FreeSpace 360 In-ground 021844
Panaray
Panaray 4402 II EQ Card
Panaray 9702 II EQ Card
402 EQ Card
402 II EQ Card
II EQ Card
802
802 III EQ Card
3302 II EQ Card
Panaray LT II EQ Card
FreeSpace
360 Surface
009083
026677
009080
026679
011502
011504
017929
018485
021845
18
402® SERIES I ELECTRICAL PART LIST
Resistors
Reference
Designator
R1 10.0K, 1206, 1/8W, 1% 124894-1002
R2 10.0K, 1206, 1/8W, 1% 124894-1002
R3 3.92K, 1206, 1/8W, 1% 124894-3921
R4 3.92K, 1206, 1/8W, 1% 124894-3921
R5 8.25K, 1206, 1/8W, 1% 124894-8251
R6 1.82K, 1206, 1/8W, 1% 124894-1821
R7 1.82K, 1206, 1/8W, 1% 124894-1821
R11 100K, 1206, 1/8W, 1% 124894-1003
R13 JUMPER, CHIP 124896
R14 3.92K, 1206, 1/8W, 1% 124894-3921
R17 5.11K, 1206, 1/8W, 1% 124894-5111
R19 JUMPER, CHIP 124896
R20 JUMPER, CHIP 124896
R21 JUMPER, CHIP 124896
R27 JUMPER, CHIP 124896
R30 86.6K, 1206, 1/8W, 1% 124894-8662
R31 21.5K, 1206, 1/8W, 1% 124894-2152
R32 78.7K, 1206, 1/8W, 1% 124894-7872
R33 6.49K, 1206, 1/8W, 1% 124894-6491
R34 JUMPER, CHIP 124896
R35 JUMPER, CHIP 124896
R36 JUMPER, CHIP 124896
R37 47.0K, 1206, 1/8W, 5% 124895-4735
R38 47.0K, 1206, 1/8W, 5% 124895-4735
R39 JUMPER, CHIP 124896
Description Part
Number
Note
Capacitors
Reference
Designator
C2 .1uF, BOX, 85, 50V, 5% 137127-104
C3 27uF, BOX, 85, 50V, 5% 137127-274
C4 .0047uF, BOX, 85, 100V, 5% 137127-472
C5 680pF, CER, 10%, 50V 137269-681
C6 .0022uF, BOX, 85, 100V, 5% 137127-222
C7 .047uF, BOX, 85, 63V, 5% 137127-473
C8 .047uF, BOX, 85, 63V, 5% 137127-473
C17 .068uF, BOX, 85, 63V, 5% 137127-683
C19 .068uF, BOX, 85, 63V, 5% 137127-683
C20 .022uF, BOX, 85, 100V, 5% 137127-223
C22 .022uF, BOX, 85, 100V, 5% 137127-223
C24 10000pF, CHIP, 5% 124959-103
C26 10000pF, CHIP, 5% 124959-103
C48 10000pF, CHIP, 5% 124959-103
C49 10000pF, CHIP, 5% 124959-103
C50 10000pF, CHIP, 5% 124959-103
C51 10000pF, CHIP, 5% 124959-103
Description Part
Number
Note
19
402® SERIES I ELECTRICAL PART LIST
Diodes
Reference
Designator
D1 1N4148, 52MM AXIAL 121501
D2 1N4148, 52MM AXIAL 121501
D3 1N4148, 52MM AXIAL 121501
D4 1N4746, ZEN, 18V, 1W, 5% 116995-4746A
D5 1N4148, 52MM AXIAL 121501
D6 1N4746, ZEN, 18V, 1W, 5% 116995-4746A
Reference
Designator
U1 NJM2059, OP AMP, QUAD 144008
U2 NJM2059, OP AMP, QUAD 144008
U3 BA3128N, SWITCH, ACTIVE, SIP-8 177292
Reference
Designator
J1 CONN, HEADER, 12 PIN 149538
Description Part
Number
Integrated circuits
Description Part
Number
Connectors
Description Part
Number
Note
Note
Note
20
402® SERIES II ELECTRICAL PART LIST
Resistors
Reference
Designator
R1 10.0K, 1206, 1/8W, 1% 124894-1001
R2 1.00K, 1206, 1/8W, 1% 124894-1001
R3 2.21K, 1206, 1/8W, 1% 124894-2211
R4 1.47K, 1206, 1/8W, 1% 124894-1471
R5 JUMPER, CHIP 124896
R8 182K, 1206, 1/8W, 1% 124894-1823
R9 3.83K, 1206, 1/8W, 1% 124894-3831
R10 25.5K, 1206, 1/8W, 1% 124894-2552
R12 5.76K, 1206, 1/8W, 1% 124894-5761
R13 1.00K, 1206, 1/8W, 1% 124894-1001
R14 2.00K, 1206, 1/8W, 1% 124894-2001
R17 10.0K, 1206, 1/8W, 1% 124894-1002
R19 JUMPER, CHIP 124896
R20 JUMPER, CHIP 124896
R21 30.1K, 1206, 1/8W, 1% 124894-3012
R22 JUMPER, CHIP 124896
R23 5.76K, 1206, 1/8W, 1% 124894-5761
R24 2.00K, 1206, 1/8W, 1% 124894-2001
R26 3.01K, 1206, 1/8W, 1% 124894-3011
R27 634 OHM, 1206, 1/8W, 1% 124894-6340
R30 75.0K, 1206, 1/8W, 1% 124894-7502
R31 21.5K, 1206, 1/8W, 1% 124894-2152
R32 78.7K, 1206, 1/8W, 1% 124894-7872
R33 7.15K, 1206, 1/8W, 1% 124894-7151
R35 JUMPER, CHIP 124896
R36 JUMPER, CHIP 124896
R37 47.5K, 1206, 1/8W, 1% 124894-4752
R38 47.5K, 1206, 1/8W, 1% 124894-4752
R39 JUMPER, CHIP 124896
Description Part
Number
Note
21
402® SERIES II ELECTRICAL PART LIST
Capacitors
Reference
Designator
C3 .0022uF, BOX, 85, 100V, 5% 137127-222
C5 .0018uF, BOX, 85, 100V, 5% 137127-182
C8 .082uF, BOX, 85, 50V, 5% 137127-823
C10 .01uF, BOX, 85, 100V, 5% 137127-103
C14 .022uF, BOX, 85, 100V, 5% 137127-223
C15 .068uF, BOX, 85, 63V, 5% 137127-683
C16 .047uF, BOX, 85, 63V, 5% 137127-473
C17 .082uF, BOX, 85, 50V, 5% 137127-823
C19 .082uF, BOX, 85, 50V, 5% 137127-823
C20 .022uF, BOX, 85, 100V, 5% 137127-223
C22 .022uF, BOX, 85, 100V, 5% 137127-223
C23 .027uF, BOX, 85, 63V, 5% 137127-273
C24 10000pF, CHIP, 5% 124959-103
C26 10000pF, CHIP, 5% 124959-103
C48 10000pF, CHIP, 5% 124959-103
C49 10000pF, CHIP, 5% 124959-103
C50 10000pF, CHIP, 5% 124959-103
C51 10000pF, CHIP, 5% 124959-103
Description Part
Number
Diodes
Note
Reference
Designator
D1 1N4148, 52MM AXIAL 121501
D2 1N4148, 52MM AXIAL 121501
D3 1N4148, 52MM AXIAL 121501
D4 1N4746, ZEN, 18V, 1W, 5% 116995-4746A
D5 1N4148, 52MM AXIAL 121501
D6 1N4746, ZEN, 18V, 1W, 5% 116995-4746A
Reference
Designator
U1 NJM2059, OP AMP, QUAD 144008
U2 NJM2059, OP AMP, QUAD 144008
U3 BA3128N, SWITCH, ACTIVE, SIP-8 177292
Reference
Designator
J1 CONN, HEADER, 12 PIN 149538
Description Part
Number
Integrated Circuits
Description Part
Number
Connectors
Description Part
Number
Note
Note
Note
22
802® SERIES II ELECTRICAL PART LIST
Resistors
Reference
Designator
R1 3.32K, 1206, 1/8W, 1% 124894-3321
R2 1.00K, 1206, 1/8W, 1% 124894-1001
R3 1.27K, 1206, 1/8W, 1% 124894-1271
R4 1.27K, 1206, 1/8W, 1% 124894-1271
R5 JUMPER, CHIP 124896
R8 9.09K, 1206, 1/8W, 1% 124894-9091
R9 6.81K, 1206, 1/8W, 1% 124894-6811
R10 3.01K, 1206, 1/8W, 1% 124894-3011
R12 9.09K, 1206, 1/8W, 1% 124894-9091
R13 5.62K, 1206, 1/8W, 1% 124894-5621
R14 54.9K, 1206, 1/8W, 1% 124894-5492
R15 61.9K, 1206, 1/8W, 1% 124894-6192
R16 2.49K, 1206, 1/8W, 1% 124894-2491
R19 JUMPER, CHIP 124896
R20 JUMPER, CHIP 124896
R22 JUMPER, CHIP 124896
R26 16.5K, 1206, 1/8W, 1% 124894-1652
R27 20.0K, 1206, 1/8W, 1% 124894-2002
R29 1.74K, 1206, 1/8W, 1% 124894-1741
R30 93.1K, 1206, 1/8W, 1% 124894-9312
R31 2.00K, 1206, 1/8W, 1% 124894-2001
R32 34.8K, 1206, 1/8W, 1% 124894-3482
R33 6.34K, 1206, 1/8W, 1% 124894-6341
R37 47.5K, 1206, 1/8W, 1% 124894-4752
R38 47.5K, 1206, 1/8W, 1% 124894-4752
R39 JUMPER, CHIP 124896
R40 JUMPER, CHIP 124896
R41 JUMPER, CHIP 124896
R44 JUMPER, CHIP 124896
Description Part
Number
Note
23
802® SERIES II ELECTRICAL PART LIST
Capacitors
Reference
Designator
C3 .0068uF, BOX, 85, 100V, 5% 137127-682
C5 .0027uF, BOX, 85, 100V, 5% 137127-272
C8 .12uF, BOX, 85, 50V, 5% 137127-124
C10 .033uF, BOX, 85, 63V, 5% 137127-333
C11 .0082uF, BOX, 85, 100V, 5% 137127-822
C12 .0056uF, BOX, 85, 100V, 5% 137127-562
C16 .1uF, BOX, 85, 50V, 5% 137127-104
C18 .1uF, BOX, 85, 50V, 5% 137127-104
C19 .1uF, BOX, 85, 50V, 5% 137127-104
C20 .47uF, BOX, 85, 50V, 5% 137127-474
C21 .15uF, BOX, 85, 50V, 5% 137127-154
C22 .15uF, BOX, 85, 50V, 5% 137127-154
C23 .033uF, BOX, 85, 63V, 5% 137127-333
C24 10000pF, CHIP, 5% 124959-103
C26 10000pF, CHIP, 5% 124959-103
C48 10000pF, CHIP, 5% 124959-103
C49 10000pF, CHIP, 5% 124959-103
C50 10000pF, CHIP, 5% 124959-103
C51 10000pF, CHIP, 5% 124959-103
Description Part
Number
Note
Diodes
Reference
Designator
D1 1N4148, 52MM AXIAL 121501
D2 1N4148, 52MM AXIAL 121501
D3 1N4148, 52MM AXIAL 121501
D4 1N4746, ZEN, 18V, 1W, 5% 116995-4746A
D5 1N4148, 52MM AXIAL 121501
D6 1N4746, ZEN, 18V, 1W, 5% 116995-4746A
Reference
Designator
U1 NJM2059OP, AMP, QUAD 144008
U2 NJM2059OP, AMP, QUAD 144008
U3 BA3128N, SWITCH, ACTIVE, SIP-8 177292
Reference
Designator
J1 CONN, HEADER, 12 PIN 149538
Description Part
Number
Integrated Circuits
Description Part
Number
Connectors
Description Part
Number
Note
Note
Note
24
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