Motorola CP040 Service Information - Page 19
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Troubleshooting Tables for Board and IC Signals (includes Controller, DC Regulation and Audio)
IC Designator
U404
Flash ROM
U404
Flash ROM
Pin
Pin Function
1
A11
2
A9
3
A8
4
A13
5
A14
6
NC
7
EN_WE
8
Vcc
9
RESET
10
A16
11
A15
12
A12
13
A7
14
A6
15
A5
16
A4
17
A3
18
A2
19
A1
20
A0
21
D0
22
D1
23
D2
24
GND
25
D3
26
D4
27
D5
28
D6
29
D7
30
EN_CE
31
A10
32
EN_OE
DC Voltage
Comments (Condition)
3.06
3.08
3.05
0.13
0.31
3.17
3.21
From U401-4
3.23
3.20
3.17
0.30
0.22
3.03
3.08
3.06
0
0.24
3.08
3.05
3.05
0.69
0.94
1.08
GND
0.78
0.59
0.66
0.67
0.75
3.01
From U401-38
0.16
0
From U401-86
2-5