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Related Manuals for Mechanics & Electronics ME500-H
Summary of Contents for Mechanics & Electronics ME500-H
- Page 1 OPERATING MANUAL ME500-H/-F/-V/-U, ME750-H/-F/-V/-U ME1200/1500-H/-F/-V/-U LINEAR AMPLIFIERS LED BARGRAPH FRONTPAGE VERSION Mechanics & Electronics Inc. Hungary Draskovits Gábor HA1YA Szombathely, Kárpáti K. u. 43. H-9700 e-mail:ha1ya@chello.hu web: http://ha1ya.config.hu...
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Page 2: Table Of Contents
C O N T E N T 1.0 General overview ............3 2.0 Specifications.............. 5 3./a Front Panel..............6 3./b Rear Panel..............8 4.0 Installation..............9 5.0 Troubleshooting............10 6.0 Drawings ..............12... -
Page 3: General Overview
ATTENTION! Please read this manual carefully before operating the equipment! The Linear Amplifier is easy to use, and damages can be avoided by following the instructions stated below. Incorrect use may cause the loss of warranty. 1.0 G E N E R A L O V E R W I E W The Linear Amplifier is produced by M+E Mechanics &... - Page 4 1.5 The PA is constructed with the following protection circuits and useful features: Heat up time checking circuit (3 min) Protection circuits (Ia, Ig1, temp, SWR>3,overdrive) Temperature dependent ventilating speed control Cooling fans (2 pcs) Function and status indicator LEDs (6 pcs) OPTO coupled PTT switch 4 LED bargraph in new front page version (FWD, RFL, Ig1, Ia,Ua,tmp)
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Page 5: Specifications
2.0 S P E C I F I C A T I O N S ME500-V Frequency coverage 144-146 MHz Operating modes ALL mode Output Power 600 W pep Driving Power 0-30W max. Input WSVR max 1:1.5 In/Out impedance 50 Ohm Valve(s) GI46B T/R System... -
Page 6: Front Panel
3/a FRONT PANEL 1. POWER ON Main switch of the equipment. 2. ON LED The LED indicator glows when the Linear is switched on. Doesn’t lit in case the 15V DC – supply for the protection circuits and antenna switch - is missing 3. - Page 7 Indicate the Ia current. When you push the HV pushbutton indicate the Ua voltage in KV. 13. Tune knob Tuning knob of the anode plate capacitor. Use for tuning the PA for max output.
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Page 8: Rear Panel
3/b REAR PANEL 1. 230V Power cord fit for standard 230V-50/60Hz mains. The colour of the protective earth is green/yellow. 2. FUSE1-2 Main fuses, 230V max. 10A,MAX 12A. 3. FUSE3 Cathode fuse of the power tubes. 4. FUSE4 Fuse for the 18V AC. Value range 1.6A. 5. -
Page 9: Installation
4.0 INSTALLATION 4.1 Connect your TCVR to the Linear using a short, 50 Ohm coaxial cable. 4.2 Connect your TCVR ground giving socket to the PTT RCA socket on the rear panel of the Linear, using a screened cable. In case your TCVR has an open collector PA controller output, you can use it without difficulties. -
Page 10: Troubleshooting
5.0 TROUBLESHOOTING Malfunctions are mostly due to improper handling, overload or similar reason. 5.1 Do not use higher input power as stated in the specification. The grid protector circuit will usually safe the power valves, but OVERLOAD alarm will appear regularly. This may happening often in SSB mode, especially in case of old transceivers, when the output power in SSB mode is not adjustable. - Page 11 5.6 ALWAYS THINK - SAFETY THIS LINEAR AMPLIFIER DESCRIBED IN THIS MANUAL CONTAINS VOLTAGE HAZARDOUS TO HUMAN LIFE AND SAFETY WHICH IS CAPABLE OF INFLICTING PERSONAL INJURY. NEVER OPERATE THE AMPLIFIER WITH THE TOP COVER REMOVED AND THE TOP COVER SAFETY SWITCH DEFEATED.