Balboa VS-510 M7 Printed Circuit Board.
Cross Reference Numbers:
33-54372-K, 54357, 54372, 54372-01, 54372-02, 54372-03, 54378, 54378-01, 055036, 59-138-1684, MX-3000 and others.
Common chip numbers that can be replaced with this board (chip numbers are usually found on a large chip near the centre of the board):
HS200R1A, HS200R1B, HS200R1C, HS200VSR2A, HS200VSR2B, KEYS2110R1A, KEYS211DR1A, KEYS211DR1B, NW300R1A, VS510SR1B, VS510SR2B, VS510SZR1A, VS510SZR2, VS510SZR2A, VS510SZR2B, VS510SZR2C, VS510SZR2D and others.
Pump 1 (2 Speed or 1 Speed)
Make sure jet pumps are rated a maximum of 12 Amps.