This document is a service manual for the Panasonic AW-PH350P/E Indoor Pan/Tilt Head, a device designed for precise camera positioning in indoor environments. It provides comprehensive information for servicing, including specifications, safety precautions, schematic diagrams, circuit board diagrams, exploded views, and replacement parts lists.
Function Description:
The Panasonic AW-PH350P/E is an indoor pan/tilt head specifically designed to provide flexible and accurate camera positioning. Its primary function is to allow remote control of a camera's horizontal (pan) and vertical (tilt) movements, making it suitable for applications requiring dynamic camera angles, such as broadcasting, surveillance, and event recording. The device is intended for use with compatible cameras and control systems, enabling operators to adjust the camera's field of view without direct physical interaction. The pan/tilt head is built for indoor use, implying a design that prioritizes precision and smooth operation in controlled environments rather than ruggedness for outdoor conditions.
Important Technical Specifications:
The AW-PH350P/E operates on a DC +12 V power supply.
- Power Consumption:
- DC +12 V 2.5 A (camera power included)
- DC +12 V 0.7 A (pan-tilt head only)
- Genlock Input: Blank burst or composite video, 1 V [p-p]/75 Ω (BNC connector).
- Camera Video Output:
- Composite video: 1 V [p-p]/75 Ω
- Component video: Y = 1 V [p-p]/75 Ω, Pr = 0.7 V [p-p]/75 Ω, Pb = 0.7 V [p-p]/75 Ω
- SDI: Not specified in detail, but SDI is listed as an input/output option.
- Camera/Pan-Tilt Head Control: RS-422 (8-pin modular jack).
- Lamp Control: Control signals (connector).
- Option Control: Control signals (connector).
- Maximum Cable Length: 3,280 feet (1,000 meters) when using BELDEN 8281 coaxial cable and 10BaseT straight cable equivalent to UTP category 5.
- Maximum Load Capacity: 7.7 lb (3.5 kg).
- Allowable Operating Temperature: 14°F to 113°F (-10°C to +45°C).
- Allowable Operating Humidity: Max. 90%.
- Dimensions (W × H × D): 5 1/8" × 9 5/8" × 7 9/16" (130 × 244 × 192 mm).
- Weight: Approx. 7.7 lb (3.5 kg).
- Finish: AV ivory paint (color approximating Munsell 7.9Y 6.8/0.8).
- Tilt Range: 190 degrees (approx. ±95 degrees). Tilt range may be subject to restrictions depending on the mounted camera, cable, lens, etc.
- Panning Range: 300 degrees (approx. ±150 degrees).
- Maximum Operating Speed: 25 degrees/sec. for panning, 20 degrees/sec. for tilting.
- Repeatability: Less than ±3'.
- Noise Level: Less than NC30.
Usage Features:
The AW-PH350P/E is designed for professional use, likely in broadcast studios, conference rooms, auditoriums, or security control centers. Its remote control capabilities via RS-422 allow for integration into existing control systems, providing operators with precise command over camera movements. The genlock input ensures synchronization with other video sources, crucial for multi-camera setups and professional video production. The various video outputs (composite and component) offer flexibility in connecting to different monitoring and recording equipment. The substantial maximum cable length (1,000 meters) allows for considerable distance between the pan/tilt head and the control unit, which is beneficial in large venues or complex installations. The relatively quiet operation (less than NC30) makes it suitable for environments where noise could interfere with audio recording or live events. The maximum load capacity of 7.7 lb (3.5 kg) indicates compatibility with a range of professional cameras, though users should always verify the weight of their specific camera setup.
Maintenance Features:
The service manual emphasizes several key aspects of maintenance and safety:
- General Guidelines: Regular servicing is crucial to ensure the device's longevity and proper function. This includes observing lead dress, replacing all parts that have been overheated or damaged, and checking for proper insulation and earth papers. After servicing, a thorough check of the following leakage current is required to protect customers from electric shock.
- Leakage Current Cold Check: This procedure involves unplugging the AC cord, connecting a jumper between the two prongs of the plug, and measuring the resistance value with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part. The resistance must be more than 5MΩ.
- Leakage Current Hot Check (See Figure 1): This involves plugging the AC cord directly into the AC outlet, using an isolation transformer, and performing a series of resistance and voltage checks at various points to ensure safety. This includes checking resistance between exposed metallic parts and earth ground, and measuring AC voltmeter readings. Any potential at any point should not exceed 0.15 volts RMS.
- Electrostatic Sensitive (ES) Devices: The manual highlights that many components are easily damaged by static electricity. Technicians are advised to use proper electrostatic discharge (ESD) precautions, such as wearing wrist straps and working on a grounded surface, to prevent damage to sensitive components. Anti-static solder removal devices are recommended.
- X-Radiation Warning: For devices containing a picture tube, specific precautions regarding X-radiation are provided, including using a picture tube test jig, verifying high voltage measurements, and ensuring proper calibration to prevent excessive X-radiation.
- Caution and Warning Labels: The manual includes specific caution and warning labels related to electric shock, fire hazard, and proper ventilation. Users are warned against removing the cover or back, servicing the device themselves, or exposing it to rain or moisture. The lightning flash with an arrowhead symbol indicates dangerous voltage, while the exclamation point within an equilateral triangle indicates important operating and maintenance instructions.
- FCC Note: The device complies with Part 15 of the FCC Rules, indicating it has been tested and found to comply with limits for a Class A digital device. Users are advised to ensure proper installation and maintenance to prevent radio frequency interference.
- Battery Replacement: Instructions for replacing the battery (Part No. VL3032/1GUF) are provided, along with a caution that batteries may explode if mistreated.
- Schematic and Circuit Board Diagrams: Detailed schematic diagrams (Section 1) and circuit board diagrams (Section 2) are provided to aid in troubleshooting and component identification. These diagrams are essential for technicians to understand the internal circuitry and pinpoint faults.
- Exploded Views & Replacement Parts Lists: Section 3 contains exploded views of the device, illustrating the assembly of various parts, and comprehensive replacement parts lists. These resources are critical for ordering correct replacement components and for proper reassembly after repairs. Components identified with a triangle symbol have special characteristics for safety, and only the same type should be used for replacement. Resistors are specified in OHMS, and capacitors in MICROFARADS (µF) or P=µµF. The P.C. Board is marked with "R" on the exploded view to show electric parts.
Overall, the service manual provides a thorough guide for maintaining and repairing the Panasonic AW-PH350P/E, ensuring its safe and effective operation over its lifespan.
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