AUDIO TELEX DCM250 Скачать руководство пользователя страница 15 | Manualshive

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Содержание DCM250

Страница 1: ...rwater NSW 2128 Australia 61 2 9647 1411 www australianmonitor com au SERVICE INFORMATION AUDIO TELEX DCM250 POWER AMPLIFIER CONTENTS OPERATION MANUAL CIRCUIT DESCRIPTION SET UP TEST PROCEDURE SCHEMATIC DIAGRAMS PCB OVERLAYS COMPONENT LISTS ...

Страница 2: ...AMrilDilril n I I ltL C O IVI IVI LJ N I CAT I O N S PTY LTO l1 ttntcrFn Audio Telex Communications Pty Ltd ACN 001345482 lncorporated ln NSW ...

Страница 3: ...tting fc this control is such that a I volt input will give a 100 volt output Powef Switch The rocker switch located in the front ce ntre of the panel turns AC power on to the DCM250 Rocking the power switch to the right to turns the AC powetr on When the AC power is on a green LED will glow in the amplifier status display window Please note that this switch does not switch DC voltage If a DC volt...

Страница 4: ...pin IEC AC mains power inlet The operating voltage is 240 vAC 50 Hzor l l0 vAc 60 trz The AC power voltage level is not externally user selectable but is factory pre set via transformer selection tre intet is equipped with an inbuilt AC fuse holder fitted with a 6 Amp slow blow fuse plus one spare frrse Power consumption is 400 VA please ensure that the mains power cord is disconnected before atte...

Страница 5: ...BIH t dt o l illE ols ol ttl ol er 8l lltltl lll ll itlrlll lllltlltltl E l9l e lo l trl lglt H a C _ f c l _ tll tltl llllltllitl ffilrltliltl I o lu tl o ...

Страница 6: ...e 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 o...

Страница 7: ...fore 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...

Страница 8: ... 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 ...

Страница 9: ...e 4AT 6 3 AT 10 AT DC fuse 10AT x1 10AT x2 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 voltage...

Страница 10: ...ut 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 s...

Страница 11: ... x x x x x x i fu il c c xx E GO F c Ytl t a cl r C ft r a tl ac c o Gl e6l E cer at c q r Yt r rC q Ft it xx xc F ra I c a cx _ I s5 cf g f c al g r a l c l U ltn a I I I I I I I I I I I I I I I I I I g o I GI c Ctl e ID I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 5 o J J 2 e F 1 r J j I t 5 r rl l Dc I I F I zA I l r r i lfi mry c q tq 19 q I l...

Страница 12: ...U t f Lrl ilHr OF L t ilHI 1 a t t t Ht q rl lr a 3 iOO lt r O G ar ll Lt cl J l I nl o I I I tr trl F tr a tF LJ a Fl I a a c D A L f t J ...

Страница 13: ...6l c I s CD c o A CJ E k l t E a f L rl ...

Страница 14: ...I I I I I l I I I I I I I I I I I I I I t I I I I I I I I I I I t I I I I I I I J r rl F O a tr trl o s n N IF J F I cr 6l C o A J L a t t ...

Страница 15: ...f Fl ft tu 3 n E H 3 o tu a rt t tF H J F r ll I I I I I I I I I I I I I I l f rf t_d n I r 3 N I rl s t o A J g a o a t ...

Страница 16: ...0R R8A 470R R9B 1K R9A 1K R5B 150R R5A 150R R4B 1K R4A 1K R3B 220R R3A 220R R2B 220R R2A 220R R10A 1K R10B 1K IC1B 78L05 V7A V8A R18A 2K2 R19A R22 R20A 2K2 R21A R22 V7B V8B R18B 2K2 R19B R22 R20B 2K2 R21B R22 V6A V6B R17B R22 R17A R22 R16A 2K2 R16B 2K2 V9A V9B R23A R22 R23B R22 R22A 2K2 R22B 2K2 R40B 1K R41A 10k NTC R41 NOT USED B X4 TO FAN X3 TO PCB6200 X2 X2 TO PCB6200 X1 X1 TP PCB6203 PCB6202 X...

Страница 17: ...9 T1B T1A R8 100R R7 100R R6 680R R5 680R R4 10K R3 10K R2 68K R1 68K IC2A LM358 R35 33K LK2 LK3 0R C9 47u C26 4u7 LK4 0R VDD 1 GP5 2 GP4 3 GP3 4 GP2 5 GP1 6 GP0 7 VSS 8 IC6 PIC12C509 D26 D24 D23 D22 D21 D20 D19 D18 D17 R48 1K R49 10K LK6 0R R46 1K2 R45 2K7 D25 R41 D31 C35 4u7 VCC R43 470R R44 1K C32 4u7 V4 BC556 D10 D16 V8 BC556 R26 10K VCC V9 BC556 R32 470K C20 47u PROTECT Desc 2 3 4 5 6 7 Pin G...

Страница 18: ...Revision Size A3 Date 6 May 2003 Sheet of File C DCM Manuals CD6203 2 DDB Drawn By C8 0 15u S1 F3 10A F1 6 3A SB F2 10A D1 40A C2 C1 BR1 T1 R2 47R C SBG 24V BATTERY 35VDC 240AC IN 10000U X1 X4 X2 X3 X5 X6 X7 1 2 3 X8 1 2 3 2 DCM250 POWER SUPPLY CD6203 2 2 PCB6203 ...

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Страница 22: ...nd resistor 5W R15B R22 Wire wound resistor 5W R16A 2K2 Resistor metal film 5W R16B 2K2 Resistor metal film 5W R17A R22 Wire wound resistor 5W R17B R22 Resistor metal film 5W R18A 2K2 Resistor metal film 5W R18B 2K2 Resistor metal film 5W R19A R22 Wire wound resistor 5W R19B R22 Wire wound resistor 5W R1A 220R Resistor metal film 5W R1B 220R Resistor metal film 5W R20A 2K2 Resistor metal film 5W R...

Страница 23: ... 5W R8B 470R Resistor metal film 5W R9A 1K Resistor metal film 5W R9B 1K Resistor metal film 5W T2 V16 TIP41C Transistor TO220 V1A TIP41C Transistor TO220 V1B TIP41C Transistor TO220 V2A IRF9520 Mosfet Hexfet V2B IRF9520 Mosfet Hexfet V3A BC556 Transistor TO92 V3B BC556 Transistor TO92 V4A TIP35C Transistor TOP 3 V4B TIP35C Transistor TOP 3 V5A TIP35C Transistor TOP 3 V5B TIP35C Transistor TOP 3 V...

Страница 24: ...tic Capacitor 35V C4 2u2 Electrolytic Capacitor 35V C5 2u2 Electrolytic Capacitor 35V C6 2u2 Electrolytic Capacitor 35V C7 100u Electrolytic Capacitor 16V C8 100P Multi layer ceramic capacitor C9 47u Metalised Poly Capacitor 63V D1 1N4148 Rectifier Diode D10 L LED red LED 3 0mm D13 L LED red LED 3 0mm D16 1N4148 Rectifier Diode D17 L LED red LED 3 0mm D18 L LED red LED 3 0mm D19 L LED grn LED 3 0m...

Страница 25: ...esistor metal film 5W R27 2M2 Resistor metal film 5W R28 100K Resistor metal film 5W R29 10K Resistor metal film 5W R3 10K Resistor metal film 5W R30 10K Resistor metal film 5W R31 10k Resistor metal film 5W R32 470K Resistor metal film 5W R33 22K Resistor metal film 5W R34 22K Resistor metal film 5W R35 33K Resistor metal film 5W R36 10K Resistor metal film 5W R4 10K Resistor metal film 5W R41 15...

Страница 26: ...BC639 Transistor TO92 V2 BC639 Transistor TO92 V3 BC546 Transistor TO92 V4 BC556 Transistor TO92 V5 BC546 Transistor TO92 V6 BC546 Transistor TO92 V7 BC546 Transistor TO92 V8 BC556 Transistor TO92 V9 BC556 Transistor TO92 Please note DCM120 DCM500 Please note DCM250 ...

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