AKG 3302M21510 - Main PCB for PT470 (Band 1/50 mW)

AKG 3302M21510 - Main PCB for PT470 (Band 1/50 mW)

The AKG 3302M21510 is the original main board for the AKG PT470 Band 1 bodypack transmitter (service designation “BD I-50” , where “I” indicates Band 1 and “50” indicates 50 mW RF power). It is a 1:1 OEM replacement designed to restore the transmitter to factory-ready functionality when the electronics have been damaged by shock, liquid, or wear. As a critical RF and audio component, its replacement maintains compatibility with the WMS470 system and SR470 receivers on the same frequency band.

Band 1 of the WMS470 system covers a range of 650–680 MHz (with a switching width of ~30.5 MHz depending on local regulations), and the PT470 operates with wideband FM modulation and a switchable 10/50 mW output (this variant is configured for 50 mW ). The 3302M21510 integrates the RF, control and audio stages of the transmitter, maintaining features such as infrared synchronization with the receiver, sending battery data and a pilot tone for suppressing start-up noises, inherent to the PT470.

Because this is a radio frequency (RF) board, AKG recommends that the installation be performed by qualified technical personnel with ESD measures and subsequent verification (basic alignment and RF test) to ensure coverage, stability, and compliance with the local frequency plan.

Main features

• Original AKG replacement part for PT470 (WMS470) beltpack transmitter.
• BD I-50 variant : Band 1 / 50 mW output (ERP).
• Working range associated with the band : 650–680 MHz.
• System compatibility : SR470 receivers on the same band.
• 1:1 fit with no mechanical modifications; maintains the PT470's IR sync and pilot tone.
• OEM Quality : Maintains factory specifications and reliability.

Product benefits

• Complete restoration of the transmitter when the original electronics are damaged.
• Operational continuity of the WMS470 fleet without changing bands or reconfiguring receivers.
• Optimized maintenance cost compared to complete transmitter replacement.
• Compatibility guaranteed as it is a band-specific AKG board.

Use cases

• Repair of PT470 with RF, audio or control failure due to board damage.
• Recovery of units affected by spills or overloads in tours, theaters, and rentals.
• Preventive maintenance of inventories operating in Band 1 .

Frequently Asked Questions

What does “BD I-50” mean?
In AKG service documentation, “ I ” corresponds to Band 1 (650–680 MHz) and “ 50 ” to the 50 mW RF power of the transmitter.

Does it work for other bands (III, VII, VIII...)?
No. Each band uses its own specific mainboard . There are different AKG part numbers for other bands (e.g., 3302M27510 for BD VII-50 or 3302M28510 for BD VIII-50).

Is it compatible with PT450?
Not directly. The PT450 uses boards with different reference families ( 3232M… ) depending on the band. This 3302M21510 is designed for the PT470 BD I-50 .

Can I install it myself?
Not recommended. This is a board-level RF intervention; it must be performed by a technician with ESD skills and power/spectral occupancy verification.

Description for projects

AKG OEM main board for PT470 transmitter, reference 3302M21510 , BD I-50 variant (Band 1, 650–680 MHz; configured power 50 mW ERP; wideband FM modulation). Compatible with WMS470 systems and SR470 receivers on the same band. Direct replacement of the PT470 main board.