8-56
Schematics, Boards Overlays, and Parts Lists
: Transceiver (RF) Boards: VHF (84012320001 / PC000352A01)
Figure 8-28. Display/Keypad Lighting Control Circuit (84012320001)
SCL2
EN
VREF1
SDA1
SCL1
SDA2
0.1UF
0.1UF
200K
PCA9306
V_LED_TOP
V_EXT_1.85
C2201
C2202
U2202
R2201
I2C_DATA
IC2_TRANS_VREF2
I2C_CLK
7
2
5
4
6
3
1
8
IN
IO
VREF2
GND
RADIO TOP LIGHTING
3.3K
3.3K
V_LED_TOP
R2206
R2204
0
LP3943
0.1UF
U2201
C2203
R2207
SDA_5V
SCL_5V
21
20
19
18
24
23
22
LED15
GND2
GND1
SCL
RST
SDA
A0
A1
A2
LED12
LED11
LED10
LED9
LED8
LED13
LED7
LED6
VDD
LED14
LED0
LED1
LED2
LED3
LED4
LED5
25
9
17
11
10
8
7
6
5
4
3
16
15
14
13
12
2
1
10K
47K
V_EXT_1.85
DTC114YKAF
Q2202
OMAP_RESET
1
2
10K
V_LED_TOP
100PF
R2254
C2223
3
0.1UF
0.1UF
0.1UF
0.1UF
0.1UF
0.1UF
0.1UF
0.1UF
C2222
C2221
C2216
C2215
C2214
C2213
C2212
C2211
270NH
270NH
270NH
470
300
470
270NH
R2246
R2245
R2244
E2248
E2249
E2247
E2246
E2245
E2244
L2205
E2242
L2204
L2203
L2202
V_SW_5
J2302
J2302
J2302
J2302
J2302
J2302
J2302
J2302
MAIN_DISPLAY_LED4
MAIN_DISPLAY_LED3
MAIN_DISPLAY_LED2
MAIN_DISPLAY_LED1
TX_RX_AMBER_LED
TX_RX_GREEN_LED
TOP_LIGHTBAR_RED_LED
TOP_LIGHTBAR_GREEN_LED
TX_RX_RED_LED
KEYPAD_WHITE_LED
TOP_LIGHTBAR_AMBER_LED
51
53
55
56
58
57
59
60
V_LED_TOP
LIGHTING CONTROLERS
0
V_SW_5
V_LED_TOP
R2235
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: ......