The service manual for the Drake ESPAGNOL PS-7 Model 1502 covers the setup and operation of a regulated power supply that delivers 13.6 volts and up to 25 amperes of continuous current, with features including short circuit and overvoltage protection, adjustable voltage and current outputs, and compatibility with various AC input voltages. It also provides troubleshooting steps for issues like overloads and short circuits, including instructions for resetting the unit and replacing fuses, as well as guidance on configuring line voltage settings.
Manual Overview
The Drake ESPAGNOL PS-7 Model 1502 is a regulated power supply providing 13.6 volts and up to 25 amperes of continuous current. It features a silicon monolithic integrated circuit for excellent voltage regulation and includes short-circuit and overvoltage protection. For troubleshooting, the unit automatically shuts off during overload or short-circuit conditions, and can be reset by toggling the power switch or removing the AC input. Overvoltage protection engages if output exceeds 16 VDC, grounding the output and blowing the primary fuse. Calibration and adjustments involve internal controls preset to 13.6 volts and 25 amperes. For line voltage programming, the unit is factory-set for 120 VAC but can be adjusted to 100, 200, or 240 VAC by repositioning internal switches and replacing the fuse accordingly. The auxiliary DC output is protected by an internal 1-amp fuse. For continuous high-demand operations, such as RTTY or SSTV, the optional FA-7 cooling fan is recommended, especially in environments exceeding 25°C. Repair services are available from the manufacturer, provided there is no external tampering.
Quick Issues Covered
- Diagnose power-up failures with voltage programming adjustments.
- Identify and replace fuses for overload protection.
- Trace circuits using provided schematics for fault isolation.
Overview
The PS-7 Model 1502 is a regulated power supply providing 13.6 volts and up to 25 amperes of continuous current. It features excellent voltage regulation through a silicon monolithic integrated circuit and includes short circuit and overvoltage protection. The power supply can handle primary voltages of 100, 120, 200, and 240 VAC, 50-60 Hz, and is equipped with programmable switches for quick voltage changes. It also has an auxiliary 13.6 VDC output protected by a 1 A internal fuse. The manual covers installation, operation, and protection mechanisms, including overload and overvoltage protection, as well as instructions for changing line voltage settings.
Specifications
- ENTRADA CA 100, 120, 200, o 240 Voltios CA, +- 10% 50-60 HZ.
- SALIDA DC 13,6 voltios DC con menos de 3mV RMS de “ripple” a 25 amperios de carga.
- CARGA CC 25 amperios continuos (a 25 °C de temp. ambiente.)
- VOLTAJE AUX. CC 13,6 VCC regulada.
- CARGA AUX. CC maximo 1 amperio.
- CONECTORES Salida Aux. CC
- Salida de ALC
- Salida VOX
- Salida CA para soplador de refrigeracion
- Conexion a tierra
- DIMENSIONES Ancho 34,93 cm (13 °/4")
- Altura 13,34 cm (5 /4")
- Profundidad 31,75 cm (12 '/2")
- Peso: 15 kg (32 /. libras)
Controls & Indicators
Refer to the PDF for details.
Installation / Setup
Ensure adequate space around the PS-7 for proper air circulation, especially near heat sources. Avoid placing objects on top of the unit to prevent overheating. The PS-7 is preset to operate at 120 VAC 50-60 Hz, but can be adjusted to other voltages by removing the programming plate and adjusting the voltage switches. For continuous heavy-duty operations, such as RTTY or SSTV, it is recommended to install the model 1529 FA-7 cooling fan if ambient temperatures exceed 25°C.
Operation
Refer to the PDF for details.
Troubleshooting & Error Codes
Refer to the PDF for details.
Safety & Warnings
Se debe tener especial atención para asegurar la provisión de un espacio adecuado alrededor de la PS-7 para la circulación apropiada de aire, especialmente cerca de fuentes de calor. Evite colocar libros, papeles u otros accesorios del equipo en la parte superior de la unidad para prevenir el sobrecalentamiento. En caso de sobrecarga o cortocircuito, el circuito regulador se apagará automáticamente y la unidad puede reiniciarse cambiando momentáneamente el interruptor ON-OFF a OFF o eliminando la tensión primaria de CA. El transformador de potencia está protegido por un fusible que debe ser reemplazado por otro del mismo tipo y rango si es necesario. Si la sección del regulador falla o uno de los transistores de paso entra en cortocircuito, la unidad se apagará automáticamente y un tiristor colocará la salida a tierra para proteger la carga, abriendo el fusible primario que debe ser sustituido después de corregir la causa de la sobrecarga.
Download ESPAGNOL Service manual (PDF – 676.4 KB)
Drake PS-7 ESPAGNOL manual helps technicians troubleshoot and calibrate equipment efficiently. File size: 676.4 KB.
- Brand: Drake-ps-7-instruction-and-service-manual
- Model: ESPAGNOL
- Type: Service manual
- File size: 676.4 KB
Overview
Brief overview of the product.
Specifications
- Key spec 1
- Key spec 2
Controls & Indicators
Control panel/button layout.
Installation / Setup
- Step 1…
- Step 2…
Operation
Basic usage, modes, cycles.
Troubleshooting & Error Codes
| Issue / Code | Fix |
|---|---|
| Example | How to fix… |
Safety & Warnings
- Important warning…
Downloads
Download ESPAGNOL service manual (PDF)
Drake-ps-7 Instruction and Service Manual Overview
The Drake-ps-7 is a precision power supply unit designed to provide stable and reliable DC voltage for various electronic devices and laboratory equipment. Ideal for both professional and amateur technicians, this model ensures consistent performance with adjustable output settings, making it suitable for testing, servicing, and powering sensitive electronic circuits.
Main Features and Specifications
- Adjustable DC output voltage range for versatile applications
- High current capacity with overload protection
- Clear analog meters for voltage and current monitoring
- Robust construction with durable components for long service life
- Compact design suitable for bench-top use
- Thermal and short-circuit protection for enhanced safety
Basic Usage and Operation Tips
Before operating the Drake-ps-7, ensure the device is properly connected to a suitable AC power source. Adjust the output voltage gradually using the control knobs while monitoring the analog meters to achieve the desired voltage and current levels. Always connect the load after setting the output to avoid sudden current surges. Use the built-in protection features to prevent damage to both the power supply and connected devices.
Troubleshooting and Maintenance
If the output voltage fluctuates or the unit fails to power on, check all cable connections and ensure the fuse is intact. Regularly clean the ventilation slots to prevent overheating and inspect the analog meters for calibration accuracy. For persistent issues, refer to the detailed service procedures in the manual to safely diagnose and repair internal components.
Safety Reminder
Always operate the Drake-ps-7 in a dry, well-ventilated area and avoid contact with live terminals during use. Disconnect the power supply from the mains before performing any maintenance or adjustments. Adhering to safety guidelines helps prevent electrical shock and equipment damage.