AUDAC SMA Series User manual

SMA500
Service Manual
V1.0
www.audac.eu

2
Service Manual
SMA500
All items within the bill of material (BOM) list that has a corresponding Audac part number (AU) can
be ordered within PVS dealershop https://my.pvs.global/ if any of these parts can not found within
the dealer shop please contact the Support & Training department [email protected]
©
This document and all information contained herein is the sole property of PVS (and/or its affiliated companies). No intellectual property rights are granted by the
delivery of this document or the disclosure of its content. This document shall not be reproduced by a third party without the express written consent of PVS (and/or the
appropriate affiliated company).
The SMA Series are dual channel (stereo) power amplifiers providing a new standard for affordable audio
amplification in both fixed and mobile audio installations. Their advanced features and availability in different
output powers for 350 Watt, 500 Watt and 750 Watt provide an enormous flexibility for numerous applications.
The WaveDynamics™ DSP processor in combination with the 2.5” LCD display gives an unmatched user expe-
rience with intuitive functions overview for easy configuration.
PVS reserves the right to change product specifications or this publication without notice.
The PVS Support & Training department maintains a continuous effort to improve the quality and usefulness of its
publications. To do this effectively, we encourage user feedback.
Please comment on the completeness, accuracy, organization, usability, and readability of this manual by an
e-mail to [email protected]

3
Revision History
Date Rev From Rev To Description
003/19 - V1.0 Frist release

4
Index
GENERAL OVERVIEW: 2
REVISION HISTORY 3
EXPLODED VIEW 5
EXPLODED VIEW PARTS LIST 6
BLOCK DIAGRAM 8
POINT TO POINT 9
TECHNICAL SPECIFICATIONS 10
PERSONAL NOTES 11
SCHEMATIC
AMPLIFIER 12
FRONT CPU 13
FRONT CODEC 14
INPUT 15
OUTPUT 16
POWER SUPPLY 17
POWER LED 18
POWER SW 18
BOM
PCBA AMPLIFIER SMA/SMQ 500 AU513501500 19
PCBA DSP BOARD FOR SMA V1.25 AU513502132 22
PCBA XLR INPUT SMA SERIES AU513503102 24
PCBA TERM. BLOCK INPUT SMA SERIES AU513503112 24
PCBA OUTPUT (SET) FOR SMA SERIES AU513504202 24
PCBA POWER LED 25
PCBA POWER SW 25
PCBA POWER SUPPLY SMA500 AU513505502
PCB VIEW
PCBA AMPLIFIER SMA/SMQ500 30
PCBA DSP BOARD FOR SMA V1.25 32
PCBA XLR INPUT SMA SERIES 34
PCBA TERM. BLOCK INPUT SMA SERIES 36
PCBA OUTPUT (SET) FOR SMA SERIES 38
PBCA POWER SUPPLY SMA500 42

5
EXPLODED VIEW

6
REF NO. DESCRIPTION AUDAC Part code Q'TY
BOX KIT 548X512X159MM 1
1 PLA POWER BUTTON KNOB AU061626004 1
2 PLA SQUARE BUTTON FOR PUSH KNOB AU063500012 2
3 PLA BIG KNOB MWX65/DW5066/WP523 AU065065102 1
4, 5 FRONT KIT (FILTER, 8XM4) SMA500 1
6 PCBA AMPLIFIER SMA/SMQ 500 AU513501500 2
7 PCBA DSP BOARD FOR SMA V1.25 AU513502132 1
8 SWITCH BRACKET 1
9 SW SWITCH POWER AU442204000 1
10 SUPPORT 1
11 FUSE HOLDER
FUSE (T8AH 250V) 1
FUSE (12A/250V) 1
FUSE (5,2*20mm.T16AH/250V) 1
12 AC INLET 1
13 POWER LED PCB ASS'Y 1
14 LED HOLDER 1
15 CONNECTOR WIRE(CON ASS'Y 1P UL1015 #18) 1
16 FAN DC 80x80x25MM 24VDC 0.17A AU352480170 1
17 PCBA XLR INPUT SMA SERIES AU513503102 1
18 PCBA TERM. BLOCK INPUT SMA SERIES AU513503112 1
19 RACK EAR 2
20 SIDE PANEL 2
21 FAN COVER 1
22 BOTTOM BASE ASS’Y 1
23 PULLEY WASHER 1
24 VFS COVER PLATES 1
25 EURO-TER OUT PCB ASS'Y 1
26 REAR KIT (7 SCREW) SMA350 1
27 TOP COVER 1
28 PCBA OUTPUT (SET) FOR SMA SERIES AU513504202 1
29 AIR GUIDE 1
30 SELF-LOCKING NUT 2
31 PCBA POWER SUPPLY SMA500 AU513505502 1
32 5P 2,5CONNECTOR WIRE(L=100mm,AWM2468
AWG26)
AMP PCB WA104 TO SMPS PCB WA104A,WA104B 2
33 5P 2,5CONNECTOR WIRE(L=200mm,AWM2468
AWG26)
SMPS PCB WA104C TO AMP PCB WA104 1
34 5P 2,5CONNECTOR WIRE(L=280mm,AWM2468
AWG26)
SMPS PCB WA104D TO AMP PCB WA104 1
35 12P 1,0 FFC CABLE(L=70mm,+/-) DSP PCB P201 TO AMP PCB WA103B 1
36 CAB 12P FFC P1.0 OPPOSITE SIDE 200-
210MM
DSP PCB P200 TO AMP PCB WA103B AU523501221 1
EXPLODE VIEW PART LIST

7
REF NO. DESCRIPTION AUDAC Part code Q'TY
37 CAB 12P FFC P1.0 OPPOSITE SIDE 200-
210MM
DSP PCB P101 TO AMP PCB WA103B AU523501221 1
38 12P 1,0B TYPE FFC WIRE(L=280mm) DSP PCB P100 TO AMP PCB WA103B 1
39 12P 1,0 FFC WIRE(12P*470mm*1,0A TYPE,+/+) DSP PCB P103 TO XLR JACK INPUT PCB WA102A 1
40 CAB 10P 28AWG 2* XH CON 470MM DSP PCB P2 TO EURO-TER INPUT PCB CN501 AU523501047 1
41 12P 1,0 FFC WIER(L=50mm) XLR JACK INPUT PCB WA101B TO EURO-TER
INPUT PCB WA101A
1
42 AC CORD(L-1900mm, 18AWG LP-34A H05VV-
FLS VDE)
1
43 BAR CODE LABEL SMA350 1
CON CBL 2P TERM. BLOCK 5.08MM GREEN AU710802021 2
CON CBL 3P TERM. BLOCK 3.81MM GREEN AU710804031 2
S1 SCREW(TTS ø3*8) 10
S2 SCREW(C-1018,B,M3) 2
S3 SCREW(TTS 4*4,0) 1
S4 SCREW(M4*10) 1
S5 SCREW(M3*8) 33
S6 SCREW(STB,4*8,TTS) 2
S7 SCREW(TTS4*6 B-HEAD BLACK) 31
S8 SCREW(BTB,3*5,ZB) 10
S9 SCREW(TTB 5*8) 4
S10 SCREW(TTS3*6 B-HEAD BLACK) 12
S11 SCREW(3*8mm TTB) 8

8
BLOCK DIAGRAM
7 Band
EQ
Time
Alignment Lockable
Speaker
Protection
Dynamic
Bass
Speaker
Presets
Energy
Limiter
Digital
Audio Filters
Energy
Input 1 Input 2 Input 3 Input 4
OFF
ANALOGUE
GAIN
INPUT SELECT
Level
AMP
TEMP
CPU
DSP
VU READ
RS232
Front
USB
ADC ADC ADC ADC
ADC
ADC
FUNCTIONProt
Clip
-20dB
Sig
CH1 CH2
POWER
ON
SMA750
AUDAC
7 Band
EQ
Time
Alignment
Speaker
Protection
Speaker
Presets
Dynamic
Bass
Limiter
Digital
Audio Filters
CHANNEL 1
CHANNEL 2
CHANNEL 3
CHANNEL 4
DAC

9
POINT TO POINT
XLR JACK INPUT PCB SPEAKCON OUT PCB
AC
SMPSPCB
DSP PCB
EURO-TER OUT PCB
EURO-TER INPUT PCB
WA101A
WA101B WA102A
CN501
WA103B
WA103B
T102
T101
WA104 WA105
T102
T101
WA104 WA105
AMP1 PCB
AMP2 PCB
DC FAN
P2
P101
P100
P3
P103
P1
CN601
POWER SW
POWER LED PCB
WA301
CN301
CN302
WA105C WA105A
WA103
W101A W102A W201A W202A
W101 W102 W201 W202
RED BLACK RED BLACK

10
Technical specifications
Frequency Response (± 3 dB) 20 Hz - 20 kHz
Signal / Noise > 95 dB
THD+N (@ 1 kHz) < 0.05% (1/2 Rated Power)
Crosstalk (@ 1 kHz) > 70 dB
Technology Class-D
Inputs Sensitivity (1W/1m) -19.5 dB ~ 27 dB
Impedance 10 kΩbalanced
Connector XLR & 3-pin Euro Terminal Block (3.81 mm)
Outputs Connector Speakon & 2-pin Euro Terminal Block (5.08mm)
Common mode rejection ratio 70 dB
Damping factor > 200
Protection Amplifier DC Short circuit
Over heating
Over load
Signal limiting
Loudspeaker Power limiter
Access Password and USB key protection
Cooling Temperature controlled FAN
Operating temperature 0° ~ 40° @ 95% Humidity
Power Supply Switching mode
Source 230 ~ 240 V AC / 50 ~ 60 Hz
RMS Power @ 4 ΩStereo 2 x 500 W
@ 8 ΩBridge 1000 W
@ 8 ΩStereo 2 x 300 W
Dimensions (W x H x D) 482 x 88 x 420 mm
Weight 7.400 kg
Mounting 19”
Unit height 2 HE
Construction Steel
Colours Black
Packaging Cardboard box
Shipping weight & volume 10.400 kg - 0.046 Cbm