BEST ACCESS SYSTEMS 34HW, Service Manual, Page: 141 / 228

W Series Service Manual 6–1
6
A
DDITIONAL
S
ERVICE AND
M
AINTENANCE FOR
IDH M
AX
L
OCKS
This chapter contains instructions for replacing
IDH Max components such as wire harnesses, card
readers, and circuit boards.
Note: When replacing components, always test that
the lock works properly when you’re finished.
Caution
Before you perform any maintenance on your
lock, make sure that you remove power from the
lock.
Caution
B
efore you handle the circuit board or any
component on the circuit board, make sure that
you are properly grounded using an electrostatic
discharge (ESD) protection kit. Touching the circuit
board without proper grounding can damage
sensitive electronic components—even if you don’t
notice any static discharge.
If you need to… See…
Replace the sensor and solenoid wire harness page 6–2
Replace the reader wire harness page 6–3
Replace the field wire harness page 6–5
Replace the control electronics circuit board page 6–8
Replace a reader circuit board assembly page 6–9
Replace a card reader page 6–11
Replace the panel interface board page 6–17