SIGMA ELECTRONICS, INC.

BSG-26 SERIES

SERVICE MANUAL

CAUTION

These servicing instructions are for use by qualified personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so. Refer all servicing to qualified service personnel.

Explanation of symbols used. The following symbols appear on the product.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

DANGER

 

ATTENTION

Protective Ground

Fuse Replacement

AC

High Voltage

Refer to Manual

(earth) Terminal

RISK OF FIRE REPLACE

Power

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FUSE AS MARKED

 

Read the IMPORTANT SAFETY INSTRUCTIONS before installing or operating this equipment. Keep this information in an accessible location for reference by all users. Follow all instructions in this manual for safe operation.

JUMPERS:

The following jumpers are located on the PCB inside the enclosure. They are provided for custom configuration of the BSG-26N and BSG-26P. The modules should not require any adjustments for normal Black Signal operation.

J1 Superblack/Black Select, Default position, Pins 2-3 (Black), Optional position, Pins 1-2 (Superblack).

J2 Setup On/Off, Default position 1-2 (Setup On, NTSC, BSG-26N), Position 2-3 (Setup Off, PAL, BSG-26P)

J3 Subcarrier Phase Select, 0° or 180°, Default position is 0°, Opposite position is 180°

ADJUSTMENTS:

The following adjustments are located on the PCB inside the enclosure. They are provided for custom configuration of the BSG-26N and BSG-26P. The modules should not require any adjustments for normal Black Signal operation.

C31 Subcarrier center frequency.

R7 Sync./Setup Gain, Set per standards specified.

R14 Subcarrier Null, Minimizes residual subcarrier on output signal.

R20 Burst Gain, Set per standards specified.

R22 Variable Subcarrier Phase Adjust, 180° SCH Phase adjust, See “JUMPER” section, jumper 3 options.

R25 Subcarrier Symmetry, Provides minimum difference in duty cycle between 0° and 180° setting of J3

DISASSEMBLY:

NOTE: REMOVE THE POWER BEFORE DISASSEMBLY OF THE UNIT. Disassembly is not necessary for normal Black Signal operation.

Tools needed: #1 Phillips head screw driver.

Procedure: 1st, remove the four rear panel Phillips head machine screws, one per corner. 2nd, remove the electrical assembly by pulling the rear panel from the enclosure; the PCB is attached to the rear panel.

TECHNICAL MANUAL:

A manual including schematics, circuit description, parts list and setup guide is available upon request. This information is intended for the service of the unit. The units should be serviced by qualified personnel only. Sigma Electronics, Inc. recommends service to be performed by the Factory Service Center.

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Sigma BSG26N manual Jumpers, Disassembly, Technical Manual

BSG26N specifications

The Sigma BSG26N is a robust and versatile inverter generator designed to cater to a range of power needs, from outdoor adventures to emergency backup situations. With a compact design and a lightweight build, it is an ideal choice for campers, tailgaters, and those who require a reliable power source in remote locations.

One of the standout features of the Sigma BSG26N is its powerful 2,600-watt output, which is sufficient to run several appliances simultaneously, including refrigerators, lights, and power tools. The generator provides a peak power capacity of 3,000 watts, making it suitable for starting larger equipment. This dual output capability ensures seamless functionality for both household and industrial requirements.

The BSG26N incorporates advanced inverter technology that produces clean and stable energy output, resulting in minimal Total Harmonic Distortion (THD). This characteristic makes it safe to power sensitive electronic devices such as laptops and smartphones without risking damage. With a noise level as low as 58 dBA, it operates quietly, making it perfect for use in residential areas or during camping trips.

The generator is equipped with an efficient fuel system that allows for extended run times. With a fuel tank capacity of 2.2 gallons, it can run for up to 10 hours at 50% load, providing users with uninterrupted power supply over long periods. This efficiency is further enhanced by its eco-mode feature, which adjusts the engine's speed according to the load demand, optimizing fuel consumption and reducing emissions.

Furthermore, the Sigma BSG26N is designed with portability in mind. It features a lightweight structure and built-in carry handles, making it easy to transport. The generator is also equipped with multiple output options, including two 120V AC outlets and a 12V DC outlet, allowing users to connect a variety of devices without hassle.

Safety is a priority for the Sigma BSG26N, which includes a low oil shutdown feature that automatically turns off the generator when oil levels are critically low, preventing engine damage. Additionally, it has a built-in circuit breaker to protect against overloads.

In summary, the Sigma BSG26N is a powerful and efficient inverter generator that combines portability, technology, and safety features, making it an excellent choice for anyone in need of reliable temporary or backup power. Its ability to deliver clean energy while maintaining user-friendly aspects positions it as a compelling option in the inverter generator market.