
UHF2 Schematics, Board Overlays, and Parts Lists
9.3-17
6816985H01-B
August 16, 2007
Figure 9.3-16. PMLE4427A/ PMLE4427B RF Schematic
PRESELECT
MIXER LNA
PA
NC
VCO BS
CONTROLS
POWER AMP
FREQ GEN UNIT
COUPLER
RECEIVER
ABACUS
VCO FS
HAR FIL
FRAC N
XSTAL FIL
FIL LO
IF5
IF32
2686700Z01
SHIELD
SH51
1
2686707Z01
SHIELD
SH1
1
SHIELD
SH102
1
M501
IF31
2686701Z01
IF6
IF37
SH251
SHIELD
1
1
IF23
2686703Z01
IF2
2686699Z01
SHIELD
SH52
IF4
IF13
IF35
IF34
IF21
IF25
IF7
IF33
2686708Z01
SH103
SHIELD
1
2
_
C
A
D
3
_
C
A
D
MOSI
PCIC_CS
RAW_B+
RESET
F
R
_
X
R
SPI_CLK
TX_RF
1
IF26
RESET_OUT
RX_OSC
F
R
_
X
R
SPI_CLK
SW_B+
VSW1
XCVR_5V
SHIELD
SH402
16.8Mhz_OSC
ABACUS_3V
ABACUS_CS
ANA_3V
Abacus_CLK
Abacus_FSYNC
Abacus_SYNCB
2
_
C
A
D
3
_
C
A
D
Data_hi
Li_BATT
MOSI
POR
RAW_B+
1
IF27
1
SHIELD
SH401
IF14
2686702Z01
SHIELD
SH101
IF8
SC_FILT_EN
SYN_SEL
TXRF_OUT
TX_SSI_Clk
TX_SSI_DATA
TX_SSI_FSYNC
XCVR_5V
IF19
SH201
2686705Z01
1
16.8Mhz_OSC_2
ANA-3V
FLCK
LOCK_DET_H
MOSI
RX_OSC
IF1
SHIELD
P4
IF11
IF24
SH252
SHIELD
1
IF30
IF28
IF3
IF18
IF10
IF29
IF20
P100
1
2
3
IF9
SHIELD
SH500
MECH_SW
PTT
RAW_B+
RED_LED
RTA0
RTA1
RTA2
RTA3
SB1
SB2
SB3
SW_B+
TG2_SEC_CLEAR
_1
VOL
IF12
ABACUS_3V
BATT_CODE
EMERGENCY
GREEN_LED
IF36
IF22
SSI_FSYNC
TX_SSI_CLK
TX_SSI_FSYNC
IF17
GREEN_LED
PTT
RTA0
RTA1
RTA2
RTA3
RED_LED
SPI_CLK_A
UNIVERSAL_SPI_CS
16_8_filtered
RX_SSI_DATA
TX_SSI_DATA
BATTERY_ID
VOLUME
SB1
SB2
SB3
SPI_MOSI_A
RESET_OUT
ABACUS3_CS
VSW1
SC_FILT_EN
MECH_SW
EMERGENCY
TG2_SEC_CLEAR
SW_B+
RFGND
RX_SSI_RESET
SSI_CLK
LOCK_DET
POR
Summary of Contents for ASTRO MT 1500
Page 4: ...iv Table of Contents August 16 2007 6816985H01 B Notes ...
Page 164: ...August 16 2007 6816985H01 B 5 6 Troubleshooting Procedures Operational Error Codes Notes ...
Page 188: ...August 16 2007 6816985H01 B 6 1 24 VHF Troubleshooting Charts Secure Hardware Failure Notes ...
Page 212: ...August 16 2007 6816985H01 B 6 2 24 UHF1 Troubleshooting Charts Secure Hardware Failure Notes ...
Page 236: ...August 16 2007 6816985H01 B 6 3 24 UHF2 Troubleshooting Charts Secure Hardware Failure Notes ...
Page 710: ...9 2 40 UHF1 Schematics Board Overlays and Parts Lists August 16 2007 6816985H01 B Notes ...
Page 806: ...9 5 32 900MHz Schematics Board Overlays and Parts Lists August 16 2007 6816985H01 B Notes ...
Page 816: ...Index 4 August 16 2007 6816985H01 B Notes ...
Page 817: ......