3-48
Theory of Operation
: Controller
3.2.6.5 Side Controls
The side controls include three programmable, momentary, pushbutton switches (Side Button 1
[SB1], Side Button 2 [SB2], Top Side Button [MON]) and a Push-To-Talk switch [PTT]. These
components interface to the Frontkit flex via connector J1 through a two-piece, bonded flex circuit.
The frontkit flex routes the side controls signals to keypad board through connector P1000 and to
Main Board through connector P2000. See
Chapter 7
for pin out names and numbers.
Side button 1 (R4006), side button 2 (R4007) and the top side button (R6101) are inputs to the CPLD
and are biased to 1.875V. A button press is detected when the OMAP reads a 'LO' state from the
CPLD EMIFS interface. PTT (R4005) is connected directly to OMAP and a button press is detected
when a LO state is read.
3.2.6.6 GCAI
The GCAI (Global Communications Accessory Interface) connector is a 15 pin interface located on
the side of the radio. The connector interfaces the radio with accessories and is used for
programming. When the OMAP (U6501) detects that an accessory has been attached through a
logic low on GPIO0, it will identify the device by reading the GCAI_ONE_WIRE line. Once the device
type is identified, the appropriate signals are multiplexed through MAKO to the GCAI connector for
the particular device.
Figure 3-37
is a block diagram of the GCAI interface.
Mounted to the side connector is a flex that houses ESD protection circuitry. The universal side
connector interfaces with the Front kit flex via the J2 connector of a flex circuit and the P1000
connector of the keypad board. A backkit flex routes universal side connector signals through
keypad board connector P2000 to the main board. The figures below show the connections and
signal assignments from the universal connector to the controller board.
Figure 3-37. GCAI Signal Configuration
2
6
7
8
9
10
11
12
D+
D-
Vbus
One-Wire
ONE_WIRE
GPIO_4
GPIO_3
Preamp
USB
XCVR
1
3
4
5
One-Wire
GPIO_0
Ext Mic
GCAI
CONNECTOR
UART1_TX
UART1_RX
UART1_TX
UART1_RX
OPT_GPIO_3
OPT_GPIO_2
OPT_GPIO_0
GPIO
MA KO
OMAP1710
EXT
PA
KF Switch
CPLD
GPO
ONE_WIRE_GCAI
BATT_STATUS
VBUS
D+
D-
SPKR+
SPKR-
GND
MIC+
MIC-
OPTA_SEL_2
OPTA_SEL_1
OPTA_SEL_0
KEYFAIL CONTROL
KEYFAIL
MACE
TXEN
DAT
SE0
USB
PORT 0
GPIO
GPIO
Содержание APX 2000
Страница 1: ...APXTM TWO WAY RADIOS APX 1000 APX 2000 APX 4000 APX 4000Li DETAILED SERVICE MANUAL ...
Страница 4: ......
Страница 6: ...iv Document History Notes ...
Страница 8: ...Notes vi Commercial Warranty ...
Страница 10: ...Notes ...
Страница 22: ...xiv List of Figures Notes ...
Страница 165: ...Troubleshooting Waveforms Clocks 6 3 6 2 2 4 MHz Clock Trace 1 Trace recorded at R6113 Figure 6 2 4 MHz Clock Waveform ...
Страница 172: ...6 10 Troubleshooting Waveforms Audio SSI 6 3 4 BCLK Trace 1 Trace recorded at R6107 Figure 6 9 Audio SSI BCLK Waveform ...
Страница 174: ...6 12 Troubleshooting Waveforms RX SSI 6 4 2 DA Trace 1 Trace recorded at R2805 Figure 6 11 RX SSI DA Waveform ...
Страница 175: ...Troubleshooting Waveforms RX SSI 6 13 6 4 3 FSYNC Trace 1 Trace recorded at R2804 Figure 6 12 RX SSI FSync Waveform ...
Страница 177: ...Troubleshooting Waveforms TX SSI 6 15 6 5 2 DA Trace 1 Trace recorded at R2817 Figure 6 14 TX SSI DA Waveform ...
Страница 178: ...6 16 Troubleshooting Waveforms TX SSI 6 5 3 FSYNC Trace 1 Trace recorded at R2807 Figure 6 15 TX SSI FSync Waveform ...
Страница 179: ...Troubleshooting Waveforms SPI 6 17 6 6 SPI 6 6 1 CLK Trace 1 Trace recorded at R2803 Figure 6 16 SPI CLK Waveform ...
Страница 180: ...6 18 Troubleshooting Waveforms SPI 6 6 2 CS Trace 1 Trace recorded at R6602 Figure 6 17 CS Waveform ...
Страница 182: ...6 20 Troubleshooting Waveforms I2C BUS 6 7 2 SCL 5V Trace 1 Trace recorded at R2204 Figure 6 19 I2C Bus SCA 5V Waveform ...
Страница 183: ...Troubleshooting Waveforms I2C BUS 6 21 6 7 3 SDA Trace 1 Trace recorded at R6209 Figure 6 20 I2C Bus SDA Waveform ...
Страница 187: ...Troubleshooting Waveforms USB 6 25 6 10 USB 6 10 1 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 24 USB D Waveform ...
Страница 188: ...6 26 Troubleshooting Waveforms USB 6 10 2 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 25 USB D Waveform ...
Страница 190: ...6 28 Troubleshooting Waveforms SDRAM 6 11 2 CLKX Trace 1 Trace recorded at TP6308 Figure 6 27 SDRAM CLKX Waveform ...
Страница 226: ...6 64 Troubleshooting Waveforms LF CW on Spectrum Analyzer Notes ...
Страница 284: ...8 4 Schematics Boards Overlays and Parts Lists List of Transceiver Schematics and Board Overlays Notes ...
Страница 688: ...Index 4 Index Notes ...
Страница 689: ...Title Page ASTRO APX 1000 Digital Portable Radios Section 2 VHF UHF1 UHF2 700 800 MHz APX 1000 ...
Страница 690: ...ii Notes ...
Страница 695: ...List of Tables xi Related Publications APX 1000 Digital Portable Radios Basic Service Manual 68012004056 ...
Страница 700: ...xvi List of Figures Notes ...
Страница 756: ...4 6 Troubleshooting Procedures Power Up Self Check Diagnostics and Repair Not for Field Use Notes ...
Страница 806: ...5 50 Troubleshooting Charts PA Failure Notes ...
Страница 809: ...Troubleshooting Waveforms Clocks 6 3 6 2 2 4 MHz Clock Trace 1 Trace recorded at R6113 Figure 6 2 4 MHz Clock Waveform ...
Страница 816: ...6 10 Troubleshooting Waveforms Audio SSI 6 3 4 BCLK Trace 1 Trace recorded at R6107 Figure 6 9 Audio SSI BCLK Waveform ...
Страница 818: ...6 12 Troubleshooting Waveforms RX SSI 6 4 2 DA Trace 1 Trace recorded at R2805 Figure 6 11 RX SSI DA Waveform ...
Страница 819: ...Troubleshooting Waveforms RX SSI 6 13 6 4 3 FSYNC Trace 1 Trace recorded at R2804 Figure 6 12 RX SSI FSync Waveform ...
Страница 821: ...Troubleshooting Waveforms TX SSI 6 15 6 5 2 DA Trace 1 Trace recorded at R2817 Figure 6 14 TX SSI DA Waveform ...
Страница 822: ...6 16 Troubleshooting Waveforms TX SSI 6 5 3 FSYNC Trace 1 Trace recorded at R2807 Figure 6 15 TX SSI FSync Waveform ...
Страница 823: ...Troubleshooting Waveforms SPI 6 17 6 6 SPI 6 6 1 CLK Trace 1 Trace recorded at R2803 Figure 6 16 SPI CLK Waveform ...
Страница 824: ...6 18 Troubleshooting Waveforms SPI 6 6 2 CS Trace 1 Trace recorded at R6602 Figure 6 17 CS Waveform ...
Страница 826: ...6 20 Troubleshooting Waveforms I2C BUS 6 7 2 SCL 5V Trace 1 Trace recorded at R2204 Figure 6 19 I2C Bus SCA 5V Waveform ...
Страница 827: ...Troubleshooting Waveforms I2C BUS 6 21 6 7 3 SDA Trace 1 Trace recorded at R6209 Figure 6 20 I2C Bus SDA Waveform ...
Страница 831: ...Troubleshooting Waveforms USB 6 25 6 10 USB 6 10 1 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 24 USB D Waveform ...
Страница 832: ...6 26 Troubleshooting Waveforms USB 6 10 2 D Trace 1 Trace recorded at TP F_GCAI_USB Figure 6 25 USB D Waveform ...
Страница 834: ...6 28 Troubleshooting Waveforms SDRAM 6 11 2 CLKX Trace 1 Trace recorded at TP6308 Figure 6 27 SDRAM CLKX Waveform ...
Страница 1008: ...8 178 Schematics Boards Overlays and Parts Lists Transceiver RF Boards UHF2 84012621001 Notes ...
Страница 1062: ...8 234 Schematics Boards Overlays and Parts Lists Keypad Board M2 and M3 PC000261A01 Notes ...
Страница 1063: ...Title Page ASTRO APX 1000 APX 2000 APX 4000 APX 4000 Li Digital Portable Radios Section 3 Appendices ...
Страница 1064: ...ii Notes ...
Страница 1068: ...Notes A 4 EMEA Warranty Service and Technical Support Further Assistance From Motorola ...
Страница 1072: ...B 4 LACR Replacement Parts Ordering and Motorola Service Centers Motorola Service Centers Notes ...
Страница 1090: ...Glossary 10 Glossary Notes ...
Страница 1094: ...Index 4 Index Notes ...
Страница 1095: ......