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P1000S/P2500S/P3500S
POWER AMPLIFIER
SERVICE MANUAL
P1000S (J model only)
P2500S
P3500S
A manufacture number should use this The service manual of PA 011690 should be used
manual with goods of 9 or more figures. for the goods whose manufacture number is 7 figures.
9 7 PA 011690
The example of a manufacture number The example of a manufacture number
UCCKX01001 KL01001
9-11 figures 7 figures
9 11 7
CONTENTS
SPECIFICATIONS ............................................... 3/4
DIMENSIONS .......................................................... 5
PERFORMANCE GRAPHS ..................................... 5
PANEL LAYOUT .................................... 6
CIRCUIT BOARD LAYOUT & WIRING
........................... 8
DISASSEMBLY PROCEDURE ............................ 10
IC BLOCK DIAGRAM IC ................................. 16
CIRCUIT BOARDS ...................................... 16
INSPECTIONS ..................................................... 26/30
PARTS LIST
BLOCK DIAGRAM
WIRING DIAGRAM
OVERALL CIRCUIT DIAGRAM
PA 011753
P1000S: 200412-72450
P2500S: 200412-93450 HAMAMATSU, JAPAN 1
P3500S: 200412-131250 Copyright (c) Yamaha Corporation. All rights reserved. PDF-K149 04.12
P1000S/P2500S/P3500S
IMPOR TANT NOTICE
This manual has been provided for the use of authorized Yamaha Retailers and their service personnel. It has been assumed
that basic service procedures inherent to the industry, and more specifically Yamaha Products, are already known and under-
stood by the users, and have therefore not been restated.
WARNING : Failure to follow appropriate service and safety procedures when servicing this product may result in per-
sonal injury, destruction of expensive components and failure of the product to perform as specified. For
these reasons, we advise all Yamaha product owners that all service required should be performed by an
authorized Yamaha Retailer or the appointed service representative.
IMPORTANT : This presentation or sale of this manual to any individual or firm does not constitute authorization certifi-
cation, recognition of any applicable technical capabilities, or establish a principal-agent relationship of
any form.
The data provided is belived to be accurate and applicable to the unit(s) indicated on the cover. The research engineering, and
service departments of Yamaha are continually striving to improve Yamaha products. Modifications are, therefore, inevitable
and changes in specification are subject to change without notice or obligation to retrofit. Should any discrepancy appear to
exist, please contact the distributor's Service Division.
WARNING : Static discharges can destroy expensive components. Discharge any static electricity your body may have
accumulated by grounding yourself to the ground bus in the unit (heavy gauge black wires connect to
this bus.)
IMPORTANT : Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power
to the unit.
WARNING: CHEMICAL CONTENT NOTICE!
The solder used in the production of this product contains LEAD. In addition, other electrical/electronic and/or plastic (Where
applicable) components may also contain traces of chemicals found by the California Health and Welfare Agency (and possibly
other entities) to cause cancer and/or birth defects or other reproductive harm.
DO NOT PLACE SOLDER, ELECTRICAL/ELECTRONIC OR PLASTIC COMPONENTS IN YOUR MOUTH FOR ANY REASON WHAT
SO EVER!
Avoid prolonged, unprotected contact between solder and your skin! When soldering, do not inhale solder fumes or expose
eyes to solder/flux vapor!
If you come in contact with solder or components located inside the enclosure of this product, wash your hands before handling
food.
WARNING
Components having special characteristics are marked and must be replaced with parts having specification equal to those
originally installed.
2
P1000S/P2500S/P3500S
SPECIFICATIONS
P2500S P3500S
Power Output Level (Rated Power) 8 /STEREO 275 W x 2 390 W x 2
1 kHz 4 /STEREO 390 W x 2 590 W x 2
THD + N = 1% 8 /BRIDGE 780 W x 1 1180 W x 1
8 /STEREO 250 W x 2 350 W x 2
20 Hz 20 kHz 4 /STEREO 310 W x 2 450 W x 2
THD + N = 0.1% 8 /BRIDGE 620 W x 1 900 W x 1
1 kHz 2 /STEREO 650 W x 2 1000 W x 2
20 ms non-clip 4 /BRIDGE 1300 W x 1 2000 W x 1
Power Bandwidth Half Power 10 Hz 40 kHz (THD + N = 0.5 %)
Total Harmonic Distortion (THD + N) 4 8 /STEREO
0.1 %
20 Hz 20 kHz, Half Power 8 /BRIDGE
Frequency Response RL = 8 , Po = 1 W 0 dB, +0.5 dB, 1 dB f = 20 Hz 50 kHz
Intermodulation distortion (IMD) 4 8 /STEREO
0.1 %
60 Hz:7 kHz, 4:1, Half Power 8 /BRIDGE
Channel Separation Half Power RL = 8 1 kHz
70 dB
Vol. max input 600 shunt
Residual Noise Vol. min. 20 Hz 20 kHz (DIN AUDIO) 70 dBu
SN Ratio 20 Hz 20 kHz (DIN AUDIO)
100 dB 102 dB
input 600 shunt
Damping Factor RL = 8 , f = 1 kHz 200
Sensitivity (Vol. max.) Rated Power 8 +3 dBu +4 dBu
Voltage Gain (Vol. max.) 32.1 dB
Input Impedance 30 k/balanced, 15 k/unbalanced
Controls Front Panel POWER switch (Push on/Push off)
Two 31-step Volume control knobs (one per ch)
Rear Panel MODE switch (STEREO/PARALLEL/BRIDGE)
Two FILTER switches (SUBWOOFER/LOW CUT/OFF)
Two fc knobs (25 to 150 Hz,12dB/octave)
YS Processing switch (ON/OFF)
Connectors INPUT XLR-3-31 jacks (one per ch)
1/4-inch balanced TRS phone jacks (one per ch)
OUTPUT Speakon jacks (one per ch)
5-way binding posts
1/4-inch phone jacks (one per ch)
Indicators POWER x 1 (Green)
PROTECTION x 1 (Red)
TEMP x 1 (Red) (heatsink temp 85 °C)
CLIP x 2 (Red)
SIGNAL x 2 (Green)
YS Processing x 1 (Yellow)
Load protection POWER switch ON muting, DC detection
Amp. protection Temp. detection (heat sink temp 90°C), VI limiter (RL 1 )
Limiter Comp: THD 0.5 %
Cooling Single variable-speed fan
Power Requirements United States & Canada 120 V, 60 Hz
Europe 230 V, 50 Hz
Australia 240 V, 50 Hz
Power Consumption Idling 25 W 30 W
Output power, 4 320 W 450 W
Dimensions (W x H x D) 480 x 88 x 456 mm
Weight 14 kg 15 kg
Included Accessories Security cover (with a hex wrench), Owner's Manual
0 dBu=0.775 Vrms, Half Power=1/2 Power Output Level (Rated Power)
3
P1000S/P2500S/P3500S
P1000S P2500S P3500S
8 /STEREO 110 W 2 275 W 2 390 W 2
1 kHz 4 /STEREO 120 W 2 390 W 2 590 W 2
THD N = 1% 8 /BRIDGE 240 W 1 780 W 1 1180 W 1
8 /STEREO 100 W 2 250 W 2 350 W 2
20 Hz 20 kHz 4 /STEREO 105 W 2 310 W 2 450 W 2
THD N = 0.1% 8 /BRIDGE 210 W 1 620 W 1 900 W 1
1 kHz 2 /STEREO 200 W 1 650 W 2 1000 W 2
20 ms nonclip 4 /BRIDGE 400 W 1 1300 W 1 2000 W 1
Half Power 10 Hz 40 kHz (THD N = 0.5 %)
THD N 4 8 /STEREO
0.1 %
20 Hz 20 kHz Half Power 8 /BRIDGE
RL = 8 , Po = 1 W 0 dB +0.5 dB 1 dB f = 20 Hz 50 kHz
4 8 /STEREO
0.1 %
60 Hz:7 kHz 4:1 Half Power 8 /BRIDGE
Half Power RL = 8 1 kHz
70 dB
. max. 600
min. 20 Hz 20 kHz (DIN AUDIO) 70 dBu
SN 20 Hz 20 kHz (DIN AUDIO)
96 dB 100 dB 102 dB
600
RL = 8 , f = 1 kHz 200
max. Rated Power 8 1 dBu +3 dBu +4 dBu
max. 32.1 dB
30 k / 15 k /
POWER : ON/OFF
: 31 2
MODE : STEREO/PARALLEL/BRIDGE
: SUB WOOFER/
HPF
LOW CUT/OFF) 2
fc = (40 Hz,12dB
fc = (25 Hz 150 Hz,12dB/octave) 2
/octave) 1
YS Processing (ON/OFF)
INPUT XLR-3-31
1/4 TRS
OUTPUT
5
5
1/4
POWER 1
PROTECTION 1
TEMP 1 85
CLIP 2
SIGNAL 2
YS Processing P1000S 1
Power / DC
90 VI RL 1
: THD 0.5
100 V 50/60 Hz
20 W 25 W 30 W
4 150 W 320 W 450 W
W H D 480 88 456 mm
12 kg 14 kg 15 kg
6
0 dBu = 0.775 Vrms Half Power = 1/2 Power Output Level (Rated Power)
4
P1000S/P2500S/P3500S
DIMENSIONS
30
374.5
456
5.5
30 362 30
480
88
Units: mm
PERFORMANCE GRAPHS
P1000S Mode: STEREO P2500S Mode: STEREO
Both ch Driven Both ch Driven
RL=4 , f=1 kHz RL=4 , f=1 kHz
1000 10000
Power Consumption [W]
Power Consumption [W]
1000
100
100
10
10
1 1
1 10 100 1000 1 10 100 1000
Output Power [W] Output Power [W]
P3500S Mode: STEREO
Both ch Driven
RL=4 , f=1 kHz
10000
Power Consumption [W]
1000
100
10
1
1 10 100 1000
Output Power [W]
5
P1000S/P2500S/P3500S
PANEL LAYOUT
Front Panel
P1000S
P2500S, P3500S
1 [POWER] switch and indicator 1 [POWER] /
2 [TEMP] indicator 2 [TEMP]
3 [PROTECTION] indicator 3 [PROTECTION]
4 [CLIP] indicator 4 [CLIP]
5 [SIGNAL] indicator 5 [SIGNAL]
6 Volume control knobs 6
7 [ ] indicator 7 [ ]
(P2500S, P3500S only) P2500S P3500S
8 Air intakes 8
6
P1000S/P2500S/P3500S
Rear Panel
P1000S
HPF 40Hz
ON OFF
STEREO BRIDGE PARALLEL
SPEAKERS
INPUT
(-) (+)
BRIDGE
P2500S, P3500S
SUB
LOW CUT WOOFER OFF
SUB
OFF WOOFER LOW CUT LOCK LOCK SPEAKERS
3 2 3 2
90 90
ON OFF
50 50
125 125
25 150 25 150 + 1+ 1+ +
Hz STEREO BRIDGE PARALLEL Hz
- 1- 1- -
FREQUENCY FREQUENCY 2+ +
2- -
- 1 + + 1 -
INPUT
(-) (+)
BRIDGE
1 FILTER switch and [FREQUENCY] adjustment knob 1 FILTER [FREQUENCY]
(One pair for each channel) (P2500S, P3500S only) P2500S P3500S A B
2 [ ] ON/OFF switch 2 [ ]
(P2500S, P3500S only) P2500S P3500S
3 [INPUT] jacks (Channels A, B) 3 [INPUT] A B
4 [STEREO/PARALLEL/BRIDGE] switch 4 [STEREO/PARALLEL/BRIDGE]
5 [SPEAKERS] jacks 5 [SPEAKERS]
6 GND terminal 6 GND
7 [HPF 40Hz] switch (P1000S only) 7 [HPF 40Hz] P1000S
7
P1000S/P2500S/P3500S
CIRCUIT BOARD LAYOUT & WIRING
Top view
OUT2 OUT1 (Upper side) (P2500S, P3500S only)
(Lower side)
IN
COIL-L PA unit
(J destination PA
only) +
PA
DC
Power transformer
PSW LED VR
Front view
Whole wiring drawing
Cord holder (V3272800)
B
J destination only
Cord holder (V3272800)
C
A
8
P1000S/P2500S/P3500S
Detail drawing A A Detail drawing B B
* The shape of the cannon connector (XLR-301J)
is different from the product.
(XLR-301J)
Connector assembly B&B Black (WD359800)
Bundle by cord holder.
(WD361600, WD359600, Fan wiring)
Connector assembly C&C 8P Connector assembly ATT 7P
(WD361400) (WD359600)
Bundle by cord holder.
Need pass a hole of circuit board.
(WD36110, WD36230, WD36240)
< > : They are not service parts.
* : P3500S only Soldering
(WD359800)
Bundle by cord holder.
(WD361700, WD359600, )
Bundle by cord holder.
Need pass a hole of circuit board.
(WD361700, , )
Detail drawing C C
Bundle by cord holder. Bundle by cord holder.
(, <*WD36060>, Transformer wiring) (WD361700, WD359600, )
Detail drawing OUT2 circuit board
OUT2
Soldering earth film.
(H, B, A, W, K, T, O destination only)
H, B, A, W, K, T, O
Bundle by cord holder. Need twist of five rotations.
5
(WD361700, WD359600, WD362000, (WD362000, WD361900, WD362100)
WD361900, WD362100, )
9
P1000S/P2500S/P3500S
DISASSEMBLY PROCEDURE
1. Top Cover (Time required: About 2 minutes) 1. 2
1-1 Remove the eleven (11) screws marked [500]. The 1-1 [500] 11
top cover can then be removed. (Fig.1) 1
· Top view [500]
[500] [500]
Top cover
[500]: Bind Head Tapping Screw-B ( B ) 4.0X8 MFZN2BL (EG340190)
Fig.1 1
2. DC Circuit Board 2. DC 4
(Time required: About 4 minutes) 2-1 1
2-1 Remove the top cover. (See procedure 1.) 2-2 [110] 9 [115] 1
2-2 Remove the nine (9) screws marked [110] and the DC 1
screw marked [115]. The DC circuit board can then 2-3 DC
be removed with the diode stack. (Photo.1) D401 1
2-3 Remove the diode stack (D401) soldered to the DC DC
circuit board. (Photo.1) DC DC
The diode stack is not part of the DC circuit board.
When you replace the DC circuit board, you should DC
remove the diode stack from the DC circuit board,
and install in the new DC circuit board.
3. Power Transformer, COIL-L Circuit Board 3. COIL-L
(Time required: About 2 minutes) 2
3-1 Remove the top cover. (See procedure 1.) 3-1 1
3-2 Remove the hexagonal nut marked [A]. The power 3-2 [A] 1
transformer can then be removed. (Photo.1) 1
3-3 (J destination only) Remove the two (2) screws 3-3 (J )[60] 2 COIL-L
marked [60].The COIL-L circuit board can then be 1
removed.(Photo.1)
4. IN Circuit Board 4. IN 4
(Time required: About 4 minutes) 4-1 1
4-1 Remove the top cover. (See procedure 1.) 4-2 [290] 4 [330] 2 [B]
4-2 Remove the four (4) screws marked [290], the two 2 IN 1, 2, 3
(2) screws marked [330] and the two (2) hexagonal
nuts marked [B]. The IN circuit board can then be
removed. (Photo.1, 2, 3)
10
P1000S/P2500S/P3500S
4-3 Remove the two (2) volume knobs from the IN circuit 4-3 IN VR 2 2
board. (Photo.2) VR IN
The volume knobs are not parts of the IN circuit IN IN VR
board. When you replace the IN circuit board, you IN
should remove the volume knobs from the IN circuit
board, and install in the new IN circuit board. IN OUT2 W301
The IN circuit board and the OUT2 circuit OUT2
board are connected with the connector
assembly (W301). Remove the solder of the
OUT2 circuit board.
[115] OUT1 OUT2
· Top view
Diode stack P2500S, P3500S only
P2500S P3500S IN
PA unit
PA
+
COIL-L PA
J destination only
J
[60] [110]
D401
Soldering
[A]
Power transformer
PSW DC VR DC fan DC
[60]: Bind Head Tapping Screw-S ( S ) [115]: Bind Head Tapping Screw-S ( S )
3.0X6 MFZN2BL (EP630210) 3.0X8 MFZN2BL (EP600530)
[110]: Bind Head Tapping Screw-S ( S ) [A]: Hexagonal Nut ( )
3.0X6 MFZN2BL (EP630210)
Photo.1 1
· Rear view Volume knob VR [330]
Latch Latch
IN
[B] [B]
[290]
[290]: Bonding Tapping Screw-B ( B ) [330]: Bind Head Tapping Screw-S ( S )
3.0X10 MFZN2BL (VQ049800) 3.0X6 MFZN2BL (EP630210)
[B]: Hexagonal Nut ( )
Photo.3 3
Photo.2 2
11
P1000S/P2500S/P3500S
5. OUT2 Circuit Board (P1000S model) 5. OUT2 P1000S 3
(Time required: About 3 minutes) OUT1/OUT2 P2500S P3500S
OUT1/OUT2 Circuit Boards (P2500S,P3500S models) 4
(Time required: About 4 minutes) 5-1 1
5-1 Remove the top cover. (See procedure 1.) 5-2 [530] 2 SP
5-2 Remove the two (2) screws marked [530]. The 4
speaker terminal cover can then be removed. 5-3 OUT2 P1000S
(Photo.4) 5-3-1 [340] 2 5
5-3 OUT2 Circuit Board (P1000S model): 5-3-2 W301B OUT2
5-3-1 Remove the two (2) screws marked [340]. (Photo.5) 1
5-3-2 Remove the solder of W301B (earth wire). The 5-4 OUT1/OUT2 P2500S P3500S
OUT2 circuit board can then be removed. (Photo.1) 5-4-1 [340] 2 [350] 4 [C]
5-4 OUT1/OUT2 Circuit Boards 2 5
(P2500S,P3500S models): 5-4-2 W301B OUT1/OUT2
5-4-1 Remove the two (2) screws marked [340], the four 1
(4) screws marked [350] and the two (2) hexagonal 5-4-3 H,B,A,W,K,T,O OUT2
nuts marked [C]. (Photo.5) 6
5-4-2 Remove the solder of W301B (earth wire). The OUT2 SP
OUT1/OUT2 circuit boards can then be removed.
(Photo.1) OUT2
5-4-3 With H,B,A,W,K,T,O models, remove the earth film OUT2 OUT2
soldered to the OUT2 circuit board. (Photo.6)
When you replace the OUT2 circuit board, be sure OUT2
to attach the speaker terminal cover as before.
The earth film is not part of the OUT2 circuit board.
· Rear view
When you replace the OUT2 circuit board, you P2500S, P3500S only P2500S, P3500S only
should remove the earth film from the OUT2 circuit [C] [C]
P2500S P3500S P2500S P3500S
board, and install in the new OUT2 circuit board. P2500S, P3500S only
[350]
P2500S P3500S
· Rear view Speaker terminal cover
SP OUT1
P2500S,
P3500S only
P2500S
P3500S
OUT2
[340]
[340]: Bonding Tapping Screw-B ( B )
[530]
3.0X10 MFZN2BL (VQ049800)
[530]: Bind Head Tapping Screw-S ( S ) [350]: Flat Head Tapping Screw-B ( B )
3.0X6 MFZN2BL (EP630210) 3.0X8 MFZN2BL (EP600790)
[C]: Hexagonal Nut ( )
Photo.4 4
Photo.5 5
Soldering
OUT2
Earth film
H, B, A, W, K, T, O destination only
H, B, A, W, K, T, O
Photo.6 6
12
P1000S/P2500S/P3500S
6. Front Panel 1 (Time required: About 4 minutes) 6. 1 4
6-1 Remove the top cover. (See procedure 1.) 6-1 1
6-2 Remove the two (2) cord holders and disconnect the 6-2 2 DC
connector from the DC circuit board. (Photo.7, 8) 7, 8
6-3 Remove the six (6) screws marked [440] and the 6-3 [440] 6 [460] 6
six (6) screws marked [460]. The front panel 1 can 1
then be removed with the left and right rack angle 9, 10
brackets. (Photo.9, 10)
Cord holder DC Cord holder VR
Power transformer
DC
Photo.8 8
Photo.7 7
· Top view Front panel 1 1 · Right side view · Left side view
Front panel 1 1
[440]
Rack angle bracket
[460] [460]
· Bottom view Front panel 1 1 Rack angle bracket (Right side) Rack angle bracket (Left side)
( ) ( )
[460]: Bind Head Screw ( )
4.0X10 MFZN2BL (VA221600)
Photo.10 10
[440]
Rack angle bracket
[440]: Bind Head Tapping Screw-B ( B )
4.0X8 MFZN2BL (EG340190)
Photo.9 9
7. VR Circuit Board 7. VR 4
(Time required: About 4 minutes) 7-1 1
7-1 Remove the top cover. (See procedure 1.) 7-2 1 6
7-2 Remove the front panel 1. (See procedure 6.) 7-3 2 [D] 2
7-3 Remove the two (2) attenuation knobs and the two VR 1, 11
(2) hexagonal nuts marked [D]. The VR circuit board
can then be removed. (Photo.1, 11)
8. DC Fan (Time required: About 4 minutes) 8. DC 4
8-1 Remove the top cover. (See procedure 1.) 8-1 1
8-2 Remove the front panel 1. (See procedure 6.) 8-2 1 6
8-3 Remove the two (2) screws marked [170]. The DC 8-3 [170] 2 DC
fan can then be removed. (Photo.1, 12) 1, 12
13
P1000S/P2500S/P3500S
9. LED Circuit Board 9. LED 4
(Time required: About 4 minutes) 9-1 1
9-1 Remove the top cover. (See procedure 1.) 9-2 1 6
9-2 Remove the front panel 1. (See procedure 6.) 9-3 [230] 2 LED
9-3 Remove the two (2) screws marked [230]. The LED 13
circuit board can then be removed. (Photo.13)
· Front view VR · Front view [170]
DC fan
[D] [D] DC
[170]
Attenuation knob
[D]: Hexagonal Nut ( ) [170]: Bind Head Screw ( )
Photo.11 11 SP 4.0X16 MFZN2Y (VB764900)
Photo.12 12
· Rear view
LED
[230] [230]
Front panel 1 1
[230]: Bind Head Tapping Screw-S ( S ) 3.0X6 MFZN2BL (EP630210)
Photo.13 13
10. PSW Circuit Board 10. PSW 6
(Time required: About 6 minutes) 10-1 1
10-1 Remove the top cover. (See procedure 1.) 10-2 1 6
10-2 Remove the front panel 1. (See procedure 6.) 10-3 [420] 4
10-3 Remove the four (4) screws marked [420]. The 14, 15
handles and the handle angles in left and right can 10-4 [390] 8 2
then be removed. (Photo.14, 15) 15
10-4 Remove the eight (8) screws marked [390]. The front 10-5 PSW 1 [200] 2 PSW
panel 2 can then be removed. (Photo.15) 1, 16
10-5 Remove the power switch knob and the two (2)
screws marked [200]. The PSW circuit board can
then be removed. (Photo.1, 16)
11. PA Unit (Time required: About 3 minutes) 11. PA 3
11-1 Remove the top cover. (See procedure 1.) 11-1 1
11-2 Remove the six (6) screws marked [30]. The PA 11-2 [30] 6 PA
unit can then be removed. (Photo.1, 17) 1, 17
12. PA Circuit Board 12. PA 10
(Time required: About 10 minutes) 12-1 1
12-1 Remove the top cover. (See procedure 1.) 12-2 PA 11
12-2 Remove the PA unit. (See procedure 11.) 12-3 [P40] 6
12-3 Remove the six (6) screws marked [P40] and the FET
screws fixing the diode stack, diode, positive [P70] P1000S 26
thermistor, transistor, FET and pair transistor P2500S 30 P3500S 36 PA
marked [P70] (26 screws for P1000S, 30 screws 2
for P2500S, 36 screws for P3500S). The PA circuit
board can then be removed. (Fig.2)
14
P1000S/P2500S/P3500S
· Rear view Front panel 1 · Front view Front panel 2 2
[420] 1 [420] Front panel 1 1
[390] [390]
[420] [420] [390] [390]
Handle angle Handle angle
Handle angle Handle angle
[390] [390]
[420] [420] Handle Handle
[420]: Bind Head Screw ( ) [390]: Hexagonal Socket Set Screw ( S )
SP 5.0X16 MFZN2BL (VU688000) 3.0X10 MFZN2BL (WD345200)
Photo.14 14 Photo.15 15
· Front view · Front view · Bottom view
[200] Main chassis
[30]
Power switch knob PSW
PSW Front panel 1
1
* The shape of the power switch knob is different from the product.
PSW
[200]: Bind Head Tapping Screw-S ( S ) [30]: Bind Head Tapping Screw-B ( B )
3.0X6 MFZN2BL (EP630210) 4.0X8 MFZN2BL (EG340190)
Photo.16 16 Photo.17 17
· PA unit PA P1000S: not installed P1000S, P2500S: not installed
· Left side view
P1000S, P2500S:
not installed
PA
[P70]
· Top view
[P40] PA
[P70]
· Right side view PA
P1000S, P2500S:
not installed
P1000S: not installed P1000S, P2500S: not installed
[P40]: Bind Head Tapping Screw-S ( S ) 3.0X6 MFZN2BL (EP630210)
[P70]: Bind Head Screw ( ) SP 3.0X12 MFZN2Y (VB763800)
Fig.2 2
15
P1000S/P2500S/P3500S
IC BLOCK DIAGRAM IC
NJM2068D-D (XA987A00) NJM2068MD-TE2 (X3505A00)
Dual Operational Amplifier Dual Operational Amplifier
DC: IC403,404 P1000S IN: IC301--303
P2500S/P3500S IN: IC301--307
Output A 1 +V 8
+DC Voltage Output A 1 +V 8
+DC Voltage
Supply Supply
Inverting Inverting
2 7 Output B 2 7 Output B
Input A - + Input A - +
Non-Inverting 3 6
Inverting Non-Inverting 3 6
Inverting
Input A + - Input B Input A + - Input B
-DC Voltage Supply 4 -V 5 Non-Inverting -DC Voltage Supply 4 -V 5 Non-Inverting
Input B Input B
CIRCUIT BOARDS
CONTENTS
COIL-L Circuit Board (J destination only)(X4988A0) .................................................................... 16
DC Circuit Board (X3499D0) ...................................................................................................... 18/20
IN Circuit Board (X3501D0) ............................................................................................................. 17
PA Circuit Board (X3500B0) ............................................................................................................ 22
SUB (LED) Circuit Board (X3895C0) .......................................................................................... 24/25
SUB (OUT1) Circuit Board (X3895C0)(P2500S, P3500S only) ................................................. 24/25
SUB (OUT2) Circuit Board (X3895C0) ....................................................................................... 24/25
SUB (PSW) Circuit Board (X3895C0) .............................................................................................. 20
SUB (VR) Circuit Board (X3895C0) ............................................................................................ 18/19
Note: See parts list for details of circuit board component parts.
COIL-L Circuit Board (J destination only)
to DC-CN419 to DC-CN418
Component side
16
P1000S/P2500S/P3500S
IN Circuit Board
P1000S: HPF 40Hz ON/OFF
P2500S, P3500S: YS Processing ON/OFF
LOW CUT/SUB WOOFER/OFF OFF/SUB WOOFER/LOW CUT
B A
(P2500S, P3500S only) (P2500S, P3500S only)
FREQUENCY B FREQUENCY A
(P2500S, P3500S only) (P2500S, P3500S only)
to VR-CN602 to DC-CN417
to OUT2-W301B
INPUT B INPUT A
STEREO/BRIDGE/PARALLEL
Component side
Pattern side
17
P1000S/P2500S/P3500S
DC Circuit Board to PA-CN102 to PA-CN103 A
to Power transformer to OUT2-W605 to PA-CN104
to LED-CN601
to Fan
to PA-CN101
A'
SUB (VR) Circuit Board
ATT B to IN-CN302 ATT A
Component side
18
P1000S/P2500S/P3500S
A to PSW-W603 to AC IN
to Power transformer to PSW-W601 to PSW-W602 (P3500S only)
to COIL-L-W701
(J destination only)
not used
(Except J destination)
to COIL-L-W702
(J destination only)
not used
(Except J destination)
to Power transformer
(CN407: P3500S only)
to IN-CN301
A'