Section 8. Theory of Operation Model 8210/8250 Maintenance Manual
Pinout Matrix
8-12 Publication: 1146945/001, Revised: 25 Sep 2018
22 JP1-35 BUS – Carries the negative component of the
digital communications between the TA,
VM, Service Port, and the Battery Charger
through SPL2. If this connection is missing,
the TA cannot communicate with the other
devices. Troubleshoot using resistance
checks. No useful information can be
gained by measuring the voltage on this
wire.
2.2VDC TA VM,
Service
Port, and
Battery
Charger
Item Connection
Functional
Description
Theory of Operations
Normal
Level
Voltage
Source
Voltage
User
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