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R0E530640MCU00 User’s Manual 2. Setup
REJ10J1733-0100 Rev.1.00 Apr. 01, 2008
Page 31 of 229
2.8.2 Using an Internal Oscillator Circuit Board
Kinds of Oscillator Circuit Boards
An oscillator module (20MHz) is mounted on the IC17 at factory setting. If you change the frequency, replace the oscillator
module.
(1) Replacing the Oscillator module
Remove the MCU unit from the E100 emulator main unit, and replace the oscillator module of the IC17 (see Figure 2.7).
CN
1
40a1a
CN
2
40a1a
CN
3
40a1a
40b1b
CN
4
40a1a
40b1b
40b1b
CN6
150
51100
CN5
150
51100
40b1b40b1b40b1b
1 47
81114
IC17
1 47
81114
SG-8002DC
SG-8002DB
EPSON TOYOCOM
SG-8002DC/DB Series
(power voltage 2.7--3.6V : PC/SC)
Figure 2.7 Replacing the oscillator module
CAUTION
Note on Replacing the Oscillator Module and Oscillator Circuit Board:
z Always shut OFF power when replacing the oscillator module. Otherwise, internal circuits may be damaged.