Nokia 6020b Service Manual

RM-31

Nokia Customer Care

4 - Service Tools

COMPANY CONFIDENTIAL

Issue 1 03/2005

Module repair jig MJ-22 update

Power supply features

• jig and phone power supply via 3mm DC jack, fuse

• power stabilization and voltage regulator on jig (can be bypassed by jumper)

• reverse and over-voltage protection of jig and phone module

Communication and status LED’s

• green: Power supply

• green: MBUS activity

• orange: FBUS activity

• jumper to disable LED’s for precise phone module current consumption measure-
ments

Spare parts

• spring loaded test pins (used in upper part, can be replaced by soldering)

Test pins (10pcs / plastic bag)

The module repair jig MJ-22 needs to be updated because the holder can touch the soldering
point of the switch and cause mechanical stress (3).

Remove a small part of the press pad (2) with a simple file (1).

(3)

(2)

(1)

(2)