Motorola EP450 - PHONE CALL PROCEDURES; Disconnecting Phone Calls; Making Phone Calls

HKLN4216A November 24, 2003
VHF Troubleshooting Tables: Troubleshooting Table for Board and IC Signals 5-11
U401
Microprocessor
10 PB1_ADDR9 3.05
11 PB2_ADDR10 0.16
12 VDD 3.23
13 VSS GND
14 PBO_ADDR8 3.05
15 PB5_ADDR13 0.13
16 PG1_XA14 0.20
17 PG4_XA17 3.17
18 PG5_XA18 0
19 PG3_XA16 3.21
20 PG2_XA15 0.30
21 PB4_ADDR12 0.22
22 PF7_ADDR7 3.03
23 PF6_ADDR6 3.08
24 PF5_ADDR5 3.06
25 PF4_ADDR4 0.16
26 PF3_ADDR3 0.26
27 PF2_ADDR2 3.06
28 PF1_ADDR1 3.06
29 PFO_ADDR0 3.05
30 PC0_DATA0 0.69
31 PC1_DATA1 0.96
32 PC2_DATA2 1.10
33 PC3_DATA3 0.81
34 PC4_DATA4 0.62
35 PC5_DATA5 0.68
36 PC6_DATA6 0.67
37 PC7_DATA7 0.73
38 PH7_CSPROG 3.05
39 VDDL 3.23
40 VSSL GND
41 PH6_CSGP2 3.23
42 PH5_CSGP1 3.23
43 PH4_CSIO 0
44 PH3_PW4 3.21 On/off control output
45 PH2_PW3 0
Table 5-4. Troubleshooting Table for Board and IC Signals (Continued)
IC Designator Pin Pin Function DC Voltage Comments (Condition)