Download AUSTRALIAN MONITOR DCM500 - Service manual
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DCM500 Service Manual Product Description Set-Up/Test Procedures Component Lists Full Schematics PCB Overlays DCM Series Circuit Description The DCM series are power amplifiers designed for commercial installations. They can be used for either low impedance (4 ohm/8 ohm) or constant voltage line speakers (100v/70v). These amplifiers can be mounted in a standard 19” equipment rack or they can be used on a shelf or table. The DCM series feature line level input (with parallel output) and are normally used with mixers, mixer amplifiers or other power amplifiers. The DCM series will operate from mains voltage or 24VDC. The DCM series also feature a DC battery trickle charge facility, auto-sensing fan cooling, plus overload, short circuit and over temperature protection. Power Switch This switch controls the switching of AC power to the amplifier. A blue ‘On’ LED will indicate whether the amplifier is switched on or off. This switch will not switch DC power on or off in DC operation. In DC operation mode, the amplifier is always on and the blue power LED will always be illuminated. If both AC and DC voltage supply are connected and the AC power switch is in the off position, the amplifier will continue to operate normally from the DC supply and the mains fail LED will indicate. Level Control The output level control is located in the centre of the front panel. It is a fully recessed screwdriver adjustable pot. Turning this pot cw will increase the gain of the amplifier. At maximum setting the input sensitivity is 300mV. The amplifier ships from the factory with the sensitivity set to 1V. Amplifier Status Display This VU meter indicates the output level of the amplifier. The sensing for the circuit is taken on the amplifier side of the output transformer. The 0dB level is referenced to 100V. This is an RMS meter, not a peak meter. Protect The protect LED will illuminate when the amplifier cuts out because of either over current or high temperature. The amplifier will switch back on after approx 4 sec for an over current trip. The amplifier will switch back on after the amplifier has cooled to 60degC for a thermal trip. Limiter The limiter is a hard limiter with an attack time of about 1msec. It is defeatable by removing the jumper on the solder side of the front pcb. This however is not recommended as voltage overload and speaker transformer current saturation may cause the amplifier to cut out under normal program material. Current Limit and Setup Current limit is controlled by a microprocessor (PIC12C509A). The detection is done by sensing voltage across the emitter resistors. Trimpot P1 on the front pcb is accessible through the hole in the top right of the chassis return (only visible with the lid off). Turning the trimpot ccw will decrease the point at which the amp cuts out ie the amp will cut out earlier. (P1 resistance is increased.) To set the current limit: 1. Reset the trimpot P1 turning fully clockwise. 2. Connect the amplifier to half it’s minimum load (10ohm for DCM500, 20ohm for DCM250, 40ohm for DCM120). 3. Run an rms 1kHz sine wave into the amplifier and set the input level so that you read 425mVDC (DCM250/500) or 825mVDC (DCM120) across the emitter resistor, measuring the side which has the higher current (measured as a voltage across the emitter resistors). 4. Turn the trimpot P1 ccw till the amplifier cuts out. The amplifier is set to the factory default. Thermal and Fan control and Setup The thermal cutout and fan is controlled by a microprocessor (PIC12C509A). The temperature is sensed using a 10k@25degC NTC. The fan is normally off and turns on to full speed at 60degC. This temperature is fixed and not adjustable. The thermal cutout temperature is set using the trimpot accessible through the hole in the top left side of the chassis return (only visible with the lid off). Turning the trimpot cw will decrease the point at which the amp cuts out ie the amp will cut out earlier. Power Amp The power amplifier is a push pull single supply amplifier driven by a class A transformer coupled front end. The drive is provided by HEXFETs (RF9520/9530) into NPN BJTs (TIP35C). When replacing the FETs it is recommended that you replace both FETs. The matching of these FETs determines the balancing of the emitter currents in the output devices. For optimum performance the emitter currents in each side should match to within 30% of each other. Bias Setup The amplifier is set with a bais setting of 1mV measured across the emitter resitors. Bias is set using the trimpots located on the power pcbs on each side of the amplifier. Turning the trimpots cw increases the bias. If the HEXFETs have been replaced the resistor in series with the pot may need to be changed. Use a lower value resistor if the bias cannot be turned off or a higher value if the bias cannot be turn on. AC Power Inlet The operating voltage is 230/240 VAC @ 50 Hz. The 3 pin IEC power inlet is located on the bottom left of the rear panel and accepts a standard mains power lead fitted with an IEC connector. Before plugging in a power lead, please check the rear panel of the amplifier to ensure that the voltage switch is set correctly for your part of the world. The inlet is equipped with an in-built AC fuse containing the rated fuse and a spare. 24 Volt DC Power Inlet The DCM series feature optional 24VDC power to run off a battery back-up if required. This is connected via the rear binding posts. The front panel Power Switch will not switch DC power ‘on’ or ‘off’ in DC operation. In this mode the amplifier is always ‘on’. The trickle charge resistor across the diode is a 47ohm/5watt wire wound resistor. The maximum trickle current is 300mA supplied from internal 35V rails. 230V/240V Slide Switch The operating voltage of the amplifier is user selectable between 230V and 240V via a slide switch located on the center of the rear panel. This switch should be set to match the AC voltage of your country. The mains transformer is wound with a 230V winding plus a 10V winding internally connected. Speaker Output Terminal Strip The screw terminals located on the top left of the rear panel allow access to the direct speaker outputs of the amplifier. Reading from left to right the terminals are: COM 4 8 Common or “-” for low impedance speaker loads (4 or 8 ohms) Positive “+” for 4 ohm speaker loads (use with common) Positive “+” for 8 ohm speaker loads (use with common) DCM120 only COM 70 100 Common or “-” for 70v or100v speaker loads Positive “+” for 70v line speaker loads (use with common) DCM120/500 only Positive “+” for 100v line speaker loads (use with common) Please ensure that the correct “Common” is used. Low impedance and 70/100v loads can be used simultaneously but please pay careful attention to the overall speaker load. Note: The minimum impedance (or maximum load) at 100 volt line should be no less than DCM120 – 80 ohms DCM250 – 40 ohms DCM500 – 20 ohms XLR Audio Input and Parallel Output The DCM series includes both male and female 3 pin XLR connectors per channel. While the female is normally used as the input to the amplifier, both XLR’s are connected in parallel so either will work. The XLR’s inputs are transformer balanced and wired as: Pin 1: Shield. Pin 2: Hot, +, Positive Pin 3: Cold, -, Negative Fuse Sizes (DCM120) Mains: 230 VAC 4 Amperes Slow Blow HRC 20x5mm DC: 10 Amperes Slow Blow HRC 20x5mm (DCM250) Mains: 230 VAC 6.3 Amperes Slow Blow 20x5mm DC: 2 x 10 Amperes Slow Blow HRC 3AG (DCM500) Mains: 230 VAC 10 Amperes Slow Blow HRC 20x5mm DC: 2 x 35 Amperes Slow Blow 3AG TESTING PROCEDURE OF DCM 120/DCM 250/DCM 500 I. PRE-TESTING (of complete sets). • Check 1.1 All screw for tightness (Bridge rectifier and transistor bolts) 1.2 Earth Connection for good contact (solder and crimpling) 1.3 This setup has signal input to the Amplifier through male (XLR) 1.4 Check with Multimeter that there is a DC resistance of about 250 Ω between Pin2 & Pin3 of each of XLR’s. Also between (Pin 1 & Pin 3) and (Pin1 & Pin2). There should be very high resistance. (IE: no reading). 2. Electrical Check 2.1 Fuse Check: Mains fuse: DC fuse: DCM 120 DCM 250 DCM 500 4AT 10AT (x1) 6.3 AT 10AT (x2) 10 AT 35AT (x2) 2.2 Connect the Amplifier to the setup (Variac voltage = 0V) set all presets on front board (only) fully clockwise, voltage selector switch to 230V 2.3 Slowly increase the input voltage to 230V, keep watching the input current should not exceed 0.1A for DCM-120, 0.1A for DCM-250, 0.1A for DCM 500. 2.4 Check and reset if necessary all emitter resistor voltages with the help of preset. (Each emitter resistor voltage should be between 0.5 mV to 0.8 mV ) 2.5 Check DC voltage Main rail = 33V 7815 input = 30V 7815 output = 15.5V 2.6 Give input signal of 500 mV to get outputs as follows (@ 4Ω output load)/ 22V for DCM 120, 32VAC for DCM250, 44.7VAC for DCM 500. Check 100V O/p at 100vV line, Remove the input signal II. FINAL TESTING (This setup should have signal input to Amplifier through female (XLR) (The limiter link should be out of circuit initially.) 1. Connect the Amplifier to the setup, set voltage selector switch to 240V 2. Switch ON the set to 240VAC. 3. Slowly increase the input signal (of 1kHz) keep watching the 24dB LED, it should glow at approx 9V output. Increase the input signal to get 70VAC output. 4. Check Dc voltage of all emitter resistors, Minimum value should be within 30% of the maximum value. 5. Slowly increase the input signal, keep watching the 0db LED, it should glow at 100V ± 5V output voltage. 6. Set 100V 1kHz as 0db reference. Change frequency to 10kHz check dB level drop. It should be 2.5dB ± 0.5dB. 7. Change the frequency to 1kHz, reduce signal level to get 10VAC output. Half the output load. 8. Overload setting: - Check the DC voltage at the emitter resistors having the maximum voltage value. Increase input signal to get 820mV for DCM 120, 425mV (for DCM250 & DCM 500). Turn preset (P2) anticlockwise such that it just mutes the output signal and signal returns back slowly after 2 seconds. 9. Reduce the signal & re check whether the signal mutes at the corresponding above stated voltages. 10. Again make the output load to original full value. Turn volume preset fully anticlockwise, set input signal strength to 1V, set volume preset clockwise to get 100V output. 11. Set input signal strength to get output 110V VAC. Insert limiter link, the signal should reduce to 100V ± 5V. 12. Remove the input signal and check noise. It should measure less than 25mV. III. THERMAL & SOAK TEST 1. Connect the Amplifier to the setup : Output load = 4Ω Output Voltage: (DCM 120): 14V. (DCM 250):20V. (DCM 500): 40V 2. Set the Amplifier thermal cut off temperature at around 105°C with the help of preset P4. 3. Leave the unit “ON” (with lid fixed, if possible) for 24 hours. IV. Sound Test/Listening test. 1. Switch On the set. Check for any switch on thump. 2. Connect CD player to the input, listen for irregularities if any. 3. Switch off the set check for switch off noises. 1 2 3 4 5 6 7 8 X1 1 2 3 D D 4 5 D1 40A BATTERY F2 35A + 24V - F1 10A F3 35A T1 +35VDC BR1 C1 240AC IN C2 C3 C4 10000U S1 C C X8 1 2 3 X6 X5 X4 X1 X3 R2 47R X2 X7 1 2 3 BR3 V1 BC639 C8 R3 100R C5 4u7 0.15u C6 4u7 RY1 R1 4K7 C7 10u D3 12V B B D2 PCB6203 A A Title Size A3 Date: File: 1 2 3 4 5 6 DCM500 POWER SUPPLY CD6203-1 C Number 6-May-2003 C:\DCM Manuals\CD6203-1.DDB 7 Revision Sheet of Drawn By: 2 SBG 1 8 1 2 3 4 5 6 7 8 DCM500 D V10-V15 = TIP35C X1 1 500R 2 R36A 3 220R R1A R25,R27,R29,R31,R33, R35 = 0.22R R2A 11 X TIP35C V4A R4A 1K D1A R5A 150R R6A 150R V5A V6A V7A V8A V9A R38A 47k PCB6201 D2A X1 TO PCB6136 X2 TO PCB6200 X3 2 3 4 X3 TO PCB6200 X4 V2A R12A 2K2 R13A R22 R14A 2K2 R15A R22 R16A 2K2 R17A R22 R18A 2K2 R19A R22 R20A 2K2 R21A R22 R22A 2K2 R23A R22 X4 TO FAN 5 PCB6202 R40 0R C X3 1 2 R8A 470R R41A 10k NTC R39A 10R 35V R10A 1K X1 TP PCB6203 C1A 820P R7A 10R IC1A 78L05 X2 TO PCB6200 X1 X3 TO PCB6200 X2 R9A 1K R11A 4K7 X4 TO FAN V16 TIP41C X3 4 V3A BC556 5 3 X4 1 FAN 2 D4 24V 6 5 D3B R10B 1K 3 2 1 70AC 2 4 1 R39B 4K7 R11B 4K7 FAN COM X4 4 OHM X3 R7B 10R C1B 820P 3 5 3 R41 NOT USED BC556 V3B R9B 1K 5 4 R40B 1K IC1B 78L05 R8B 470R X1 B 2 R5B 150R 1 R6B 150R V2B R12B 2K2 R13B R22 R14B 2K2 R15B R22 R16B 2K2 R17B R22 R18B 2K2 R19B R22 R20B 2K2 R21B R22 R22B 2K2 R23B R22 R42B 10R X2 V4B R4B 1K 2 V5B V6B 47k V8B V9B D2B 11 X TIP35C V1B R1B 220R R37 0R V7B R38B D1B 1 X3 T2 100VAC 5 4 C PCB6202 D3A B D R24,R26,R28,R30,R32, R34 =2K2 V1A R3A 220R X2 1 +35V 220R R3B 220R R36B 500R PCB6201 R2B 220R +35V A A Title Size A3 Date: File: 1 2 3 4 5 6 DCM500 POWER PCB C CD6201-1 Number 8-May-2003 Sheet of C:\DCM Manuals\CD6201-12.DDB Drawn By: 7 Revision 1 8 2 SBG 1 2 Microprocessor 3 4 5 6 7 8 Mute/Limiter/Drive VCC VCC C8 100P 13 2 3 4 VDD VSS GP5 GP0 GP4 GP1 GP3 GP2 8 R16 2M2 7 X3/1 6 C5 2u2 47K P2 5 R35 33K I/O Desc 7. GP0-OUT = 1/2VCC CON 6. GP1-OUT = FAN CON 5. GP2-OUT = PRTCT/MUTE 4. GP3-IN = I LIMIT 3. GP4-IN = FAN SENSE 2. GP5-IN = THRML SENS 3 14 5 12 6 11 7 10 8 9 C13 47P VCC R29 10K 2M2 R27 15 C17 2u2 R25 10K LK2 C9 .47u C12 R19 2u2 100K R30 10K V5 BC546 VU Display X1/2 V1 BC639 D1 C23 100P R12 100R C3 10u LK4 0R R8 100R R21 39k C2 2u2 R11 390R VCC LK6 0R 10k R22 C X3/2 IC2B LM358 Battery Indicator X2/1 (N/C) C6 2u2 R24 10k D2 R10 1K R7 100R X5 IC2A LM358 0R LK3 C19 47u R3 10K IC4B LM833-B AGND R9 5K6 V8 BC556 R17 47K D X1/1 R5 680R X1/3 R20 10k IC6/P5 C T1A R1 68K C1 2u2 VCC R26 10K C33 4u7 R23 10K C14 47P 4 100K R15 Pin IC3A SA571 2 2u2 C10 C26 4u7 16 R28 1 D 1 100K IC6 PIC12C509 VDD IC4A LM833-A R4 10K V2 BC639 X3/3 T1B 68K R2 X3/5 R6 680R AGND X3/4 X1/5 IC7 LN3915 C35 4u7 B 3 9 10 5 R48 1K 11 6 12 7 R49 10K D31 13 D17 D18 D19 D20 +3DB 0 R44 1K D16 VCC C32 4u7 V4 BC556 X1/4 -6 VCC X2/6 (N/C) D27 IC6/P5 D10 MAINS FAIL Thermal Sense R42 1K R43 470R -3 Protect/On Indicator D13 VDD R51 1K Fan Control X2/5 R55 10K P4 10K R56 10K IC6/P2 V6 BC546 IC6/P6 R46 1K2 14 D21 B X4/4 FAN CONTROL IC6/P3 -9 X2/4 X4/3 X4/1 8 R41 15 R45 2K7 PROTECT -12 POWER Power * * D22 16 D23 Current Limit R14 22R -15 X2/3 IC1 7815 16VDC IC5 7805 VCC VDD VDD X4/2 R41=15K=DCM120/500 R41=12K=DCM 250 17 D24 -18 18 D25 -21 R32 470K V9 BC556 X4/6 GND C7 D4 100u C4 C20 47u VDD 2u2 1 A D26 R33 22K 4 IC6/P7 R36 10K V7 BC546 V3 BC546 AGND 8V2 R34 22K C18 4u7 DCM DRIVER Date: File: 3 4 5 P1 2K Title Number 6 Revision CD6200-1 A3 2 X4/5 A Size 1 X2/2 R53 1K IC6/P4 AGND 2 R31 10k C11 22u R13 10K C16 100u -25 C15 100u R18 1K 6-May-2003 Sheet of C:\Protel Files\CDTRAX\CD6200-14.DDB Drawn By: 7 D 1 8 1 SBG DCM500 Power Supply Components List Designato Part Type BR1 KBPC3504 BR3 KBPC3504 C1 15000uF C2 15000uF C3 15000uF C4 15000uF C5 4u7 C6 4u7 C7 10u C8 0.15u D1 40A D2 1N4007 D3 12V F1 *** F2 35A F3 35A R1 4K7 R2 47R R3 100R RY1 Relay S1 Switch T1 V1 BC639 Description Bridge recitfier 600V/35A Bridge recitfier 600V/35A Electrolytic Capacitor 50V Electrolytic Capacitor 50V Electrolytic Capacitor 50V Electrolytic Capacitor 50V Electrolytic Capacitor 50V Electrolytic Capacitor 50V Electrolytic Capacitor 50V Metalised Poly Capacitor 275V Stud Mount Rectifier Diode 40A Rectifier Diode Zener diode 1W 12V Fuse, refer user manual Fuse, 35A 3AG Fuse, 35A 3AG Resistor, metal film .5W PW5 Wire Wound resistor 5W PW10 Wire wound resistor 10w Relay 12V 16A SPDT Rocker Switch DPST Power transformer Transistor TO92 Manufacturer's code 2134800356 2134800356 2121250153 2121250153 2121250153 2121250153 2121250479 2121250479 2121230100 2124290158 2135940100 2133440007 2136010120 2541120350 2541120350 9111590472 2111450470 2111460101 2522220793 2511210155 2651991355 2144200639 DCM Series Drive Stage Component List Designato Part Type C1 2u2 C10 2u2 C11 22u C12 2u2 C13 47P C14 47P C15 100u C16 100u C17 2u2 C18 4u7 C19 47u C2 2u2 C20 47u C23 100P C26 4u7 C3 10u C32 4u7 C33 4u7 C35 4u7 C4 2u2 C5 2u2 C6 2u2 C7 100u C8 100P C9 .47u D1 1N4148 D10 L-LED(red) D13 L-LED(red) D16 1N4148 D17 L-LED(red) D18 L-LED(red) D19 L-LED(grn) D2 1N4148 D20 L-LED(grn) D21 L-LED(grn) D22 L-LED(grn) D23 L-LED(grn) D24 L-LED(grn) D25 L-LED(grn) D26 L-LED(grn) D27 L-LED(grn) D31 1N4148 D4 1N4007 IC1 7815 IC2A LM358 IC2B LM358 IC3 SA571 IC4A LM833-A IC4B LM833-B IC5 7805 IC6 PIC12C509 LK2 0R LK3 0R Description Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Multi layer ceramic capacitor Multi layer ceramic capacitor Electrolytic Capacitor 16V Electrolytic Capacitor 16V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Multi layer ceramic capacitor Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 35V Electrolytic Capacitor 16V Multi layer ceramic capacitor Metalised Poly Capacitor 63V Rectifier Diode LED 3.0mm LED 3.0mm Rectifier Diode LED 3.0mm LED 3.0mm LED 3.0mm Rectifier Diode LED 3.0mm LED 3.0mm LED 3.0mm LED 3.0mm LED 3.0mm LED 3.0mm LED 3.0mm LED 3.0mm Rectifier Diode Rectifier Diode Voltage regulator I.C TO220 Comparator, dual IC DIP Comparator, dual IC DIP Compander IC DIP Dual op-amp IC DIP Dual op-amp IC DIP Regulator IC TO92 Programmable IC DIP Link, zero ohms Link, zero ohms Manufacturer's Code 2121260229 2121260229 2121250220 2121260229 2127181470 2127181470 2121210101 2121210101 2121260229 2121250479 2121230470 2121260229 2121230470 2127181101 2121250479 2121230100 2121250479 2121250479 2121250479 2121260229 2121260229 2121260229 2121210101 2127181101 2124262472 2133440148 2137200003 2137200003 2133440148 2137200003 2137200003 2137500003 2133440148 2137500003 2137500003 2137500003 2137500003 2137500003 2137500003 2137500003 2137500003 2133440148 2133440007 2151370815 2152800358 2152800358 2153600571 2157800833 2157800833 2151270805 2159082509 9111590000 9111590000 LK4 LK6 P1 P2 P4 R1 R10 R11 R12 R13 R14 R15 R16 R17 R18 R19 R2 R20 R21 R22 R23 R24 R25 R26 R27 R28 R29 R3 R30 R31 R32 R33 R34 R35 R36 R4 R41 R41 R42 R43 R44 R45 R46 R48 R49 R5 R51 R53 R55 R56 R6 R7 R8 R9 T1A 0R 0R 2K 47K 10K 68K 1K 390R 100R 10K 22R 100K 2M2 47K 1K 100K 68K 10k 39k 10k 10K 10k 10K 10K 2M2 100K 10K 10K 10K 10k 470K 22K 22K 33K 10K 10K 15K* 12K** 1K 470R 1K 2K7 1K2 1K 10K 680R 1K 1K 10K 10K 680R 100R 100R 5K6 RF2285A Link, zero ohms Link, zero ohms Cermet, preset Horizontal Potentiometer 16mm Cermet, preset Horizontal Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Resistor, metal film .5W Driver Transformer 9111590000 9111590000 2112210202 2112211473 2112210103 9111590683 9111590102 9111590391 9111590101 9111590103 9111590220 9111590104 9111590225 9111590473 9111590102 9111590104 9111590682 9111590103 9111590393 9111590103 9111590103 9111590103 9111590103 9111590103 9111590105 9111590104 9111590103 9111590103 9111590103 9111590103 9111590474 9111590223 9111590223 9111590333 9111590103 9111590103 9111590153 9111590123 9111590102 9111590471 9111590102 9111590272 9111590122 9111590102 9111590103 9111590681 9111590102 9111590102 9111590103 9111590103 9111590681 9111590101 9111590101 9111590562 DCM-120-24 T1B V1 V2 V3 V4 V5 V6 V7 V8 V9 RF2285B BC639 BC639 BC546 BC556 BC546 BC546 BC546 BC556 BC556 Please note Please note Driver Transformer Transistor TO92 Transistor TO92 Transistor TO92 Transistor TO92 Transistor TO92 Transistor TO92 Transistor TO92 Transistor TO92 Transistor TO92 * DCM120-DCM500 ** DCM250 DCM-120-24 2144200639 2144200639 2144200546 2144200556 2144200546 2144200546 2144200546 2144200556 2144200556 DCM500 Output stage Components List Designator C1A C1B D1A D1B D2A D2B D3A D3B D4 IC1A IC1B R10A R10B R11A R11B R12A R12B R13A R13B R14A R14B R15A R15B R16A R16B R17A R17B R18A R18B R19A R19B R1A R1B R20A R20B R21A R21B R22A R22B R23A R23B R2A R2B R36A R36B R37 R38A R38B R39A R39B R3A R3B R40 Part Type 820P 820P 1N4007 1N4007 1N4007 1N4007 1N4007 1N4007 1N4007 78L05 78L05 1K 1K 4K7 4K7 2K2 2K2 R22 R22 2K2 2K2 R22 R22 2K2 2K2 R22 R22 2K2 2K2 R22 R22 220R 220R 2K2 2K2 R22 R22 2K2 2K2 R22 R22 220R 220R 500R 500R 0R 47k 47k 10R 4K7 220R 220R 1K Description Multi layer Ceramic Capacitor Multi layer Ceramic Capacitor Rectifier Diode Rectifier Diode Rectifier Diode Rectifier Diode Rectifier Diode Rectifier Diode Rectifier Diode Voltage regulator IC TO92 Voltage regulator IC TO92 Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Wire wound resistor 5W Wire wound resistor 5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Wire wound resistor 5W Wire wound resistor 5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Wire wound resistor 5W Wire wound resistor 5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Wire wound resistor 5W Wire wound resistor 5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Wire wound resistor 5W Wire wound resistor 5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Wire wound resistor 5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Cermet, preset horizontal Cermet, preset horizontal Link, zero ohms .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Manufacturer's Code 2127181821 2127181821 2133440007 2133440007 2133440007 2133440007 2133440007 2133440007 2133440007 2151270805 2151270805 9111590102 9111590102 9111590472 9111590472 9111590222 9111590222 2111450228 2111450228 9111590222 9111590222 2111450228 2111450228 9111590222 9111590222 2111450228 2111450228 9111590222 9111590222 2111450228 2111450228 9111590221 9111590221 9111590222 9111590222 2111450228 2111450228 9111590222 9111590222 2111450228 2111450228 9111590221 9111590221 2112210501 2112210501 9111590000 9111590473 9111590473 9111590100 9111590472 9111590221 9111590221 9111590102 R40B R41 R41A R42B R4A R4B R5A R5B R6A R6B R7A R7B R8A R8B R9A R9B T2 V16 V1A V1B V2A V2B V3A V3B V4A V4B V5A V5B V6A V6B V7A V7B V8A V8B V9A V9B 1K Resistor, Metalfilm .5W 9111590102 100D 10R 1K 1K 150R 150R 150R 150R 10R 10R 470R 470R 1K 1K Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W Resistor, Metalfilm .5W 9111590100 9111590102 9111590102 9111590151 9111590151 9111590151 9111590151 9111590100 9111590100 9111590471 9111590471 9111590102 9111590102 TIP41C TIP41C TIP41C IRF9520 IRF9520 BC556 BC556 TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C TIP35C Transistor TO220 Transistor TO220 Transistor TO220 Mosfet, hexfet Mosfet, hexfet Transistor T092 Transistor T092 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 Transistor TOP-3 2141300041 2141300041 2141300041 2142309520 2142309520 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 2141600035 DCM500 Major Components price list Part Description Manufacturer code in house AUD$ PCB's Power Supply PCB Input Output Left Output Right Display-front PCB Relay PCB Capacitor mount PCB Input PCB assy Output PCB assy Output PCB assy Display PCB Relay slow start PCB S5728MDCM50003 S5728MDCM50005 S5728MDCM50001 S5728MDCM50002 S5728MDCM50006 S5728MDCM50004 $47.13 $10.05 $66.79 $62.75 $33.44 $8.18 Transformers 230/240VAC Output Fuse 35 amp Bridge Assembly Drive transformer Mains 230/240V Output DC rail fuse Bridge Assembly Drive Transformer 2561991355 2651991357 2541120350 S5728MDCM50023 S5728MDCM50007 $79.36 $65.99 $0.51 $27.31 $2.30 Semiconductors TIP35C TIP41C BC639 BC640 BD140 BD139 LM1458 LM833N LM358 LM78L05 LM7815 LM7818 10k Thermistor IRF 9530 PIC 12C509 LED blue KBPC 3506 SA 571N LM 3915N NPN TO3P transistor PNP TO220 transistor NPN TO92 PNP TO92 PNP TO92 NPN TO92 IC Dual Op amp IC Dual Op amp IC Dual Op amp IC Regulator IC Regulator IC Regulator Bridge rectifier 35A Compander LED driver IC 2141600035 2141300041 2144200639 2144200640 2141400140 2141400139 2152801048 2157800833 2152800358 2151270805 2151370815 2151370818 2111911103 2142309530 2159082509 2137600003 2134800356 2153600571 2156603915 Input attenuator Rocker switch 2112211473 2511210155 Mosfet IRF9530 PIC 12C509A, 8 PIN TIP36C TIP42C S7007 S7008 S7009 LM1458 LM833 LM358 LM7805 LM7815 LM7818 $3.60 $2.01 $0.16 $0.16 $0.22 $0.22 $0.27 $1.05 $1.05 $0.17 $0.52 $0.52 $0.80 $3.49 $4.17 $0.13 $7.49 $3.69 $3.77 Switches & Pots Volume Pot Power switch $0.56 $1.39 Hardware Front Panel Lid Rack ears Chassis Barrier Strip XLRF XLMR Screw + washer Screw Acrylic cover for terminal Fuse Holder FAN 12V Front Panel DCM500 Top cover DCM500 Rack ears Chassis Pan DCM500 6 way barrier connector XLF Female connector XLR Male connector Black screw w/star Black screw wo/star Clear cover for 6 way barrier connector DCM series fuse holder DCM Series 12vdc fan S600000132 S600000130 S600000137 S600000129 2583528306 2587210266 2587110227 2316420308 2316421306 9347560006 $4.88 $13.14 $4.35 $22.92 $2.51 $1.35 $1.08 $0.08 $0.08 $0.31 2344400322 2571120122 $1.00 $6.33