8-406
Schematics, Boards Overlays, and Parts Lists
: Keypad Lite Board (84012559002)
Figure 8-192. Keypad Lite Matrix Circuit
(4,2) - H/L
(4,1) - SCAN
(4,0) - CALL
(COL,ROW)
SWITCH
SWITCH
SWITCH
S21
1
2
S20
1
2
S19
1
2
KP_ROW_2
KP_COL_4
KP_ROW_0
KP_ROW_1
KP_ROW_A
KP_COL_4
EMIF061005M12
KP_ROW_B
KP_ROW_2
FL1
1
2
3
4
5
6
10
11
12
7
8
9
P2001
28
P2001
26
O12
O11
GND
I1
O10
O9
O8
O7
I2
I3
I4
I5
I6
100PF
100PF
C27
C28
KP_ROW_C
KP_ROW_0
KP_COL_E
KP_ROW_1
G1
P2001
27
P2001
30
100PF
100PF
C22
C24
KEYPAD CONTROL
GROUND CONTACTS
M3
1
M2
1
M1
1
Summary of Contents for APX 2000
Page 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Page 4: ......
Page 6: ...iv Document History Notes ...
Page 8: ...Notes vi Commercial Warranty ...
Page 10: ...Notes ...
Page 22: ...xiv List of Figures Notes ...
Page 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Page 688: ...Index 4 Index Notes ...
Page 690: ...ii Notes ...
Page 700: ...xvi List of Figures Notes ...
Page 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Page 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Page 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Page 1064: ...ii Notes ...
Page 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Page 1090: ...Glossary 10 Glossary Notes ...
Page 1094: ...Index 4 Index Notes ...
Page 1095: ......