Motorola APX 1000 Detailed Service Manual page 967

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF2 (84012621001)
8.4 Transceiver (RF) Boards: UHF2 (84012621001)
UNSW_B+
V_2.8_RF
V_SW_3.60
RF_ANT
BAT_STATUS
TX_INJ
ISET
RF_DAC_SPI_CS
V_EXT_1.85
DC_LIN_3V
DC_LIN_5V
DIG_CTRL_I_LIMIT
TX_INHIBIT
SPI_DSP_MOSI
F2_DMCS
F2_PARAMP
RF_SW_B+
HF_OUT
DIG_CTRL_ATTH
ALC_DAC_RST
TX_FSYNC_CONN
TX_CLK_CONN
SPI_DSP_MISO
DC_LIN_1_5V
V_2.8_RF
RF_BRD_RSTB
LOCK_DET_A
SPI_DSP_CLK_A
TRIDENT_SPI_CS
TX_DA_CONN
ABACUS_SPI_CS
RX_FSYNC_CONN
RX_DA_CONN
RX_CLK_CONN
F2_SYNCB
16.8_MHZ_SINEWAVE
DC_FUSED_B+
DC_LIN_1_5V
DC_LIN_2_775V DC_LIN_1_5V
DC_LIN_1_8V
DC_SWI_3_6V DC_LIN_1_8V
DC_LIN_3V
ulc_dc
DC_LIN_3V
RF_ANT DC_LIN_5V
DC_BATT RF_SW_B+
BAT_STATUS
IF6
IF1
FILT_RAW_B+
PA_OUT
IF2
TX_7V
IF7
IF3 ulc_uhf2_pa
TX_INJ
IF5
IF4
VC
DIG_CTRL_ATTH
ANA_CTRL_ISET ANA_RX_FE_FILT_VTUNE
ANA_CTRL_VSET FILT_RAW_B+
DC_LIN_1_875V_D TXH
DC_LIN_3V TX_7V_1
DC_LIN_5V VCTRL
DC_RAW_B+
RF_OUT RF_ANT
DIG_CTRL_I_LIMIT
DIG_CTRL_TX_INH TX_SWI
ulc_alc_uhf2
DIG_DATA_SPI_MOSI
DIG_DMCS
DIG_GPIO49
DIG_SPI_CLK
SW_B+
TXH_1
DIG_CTRL_ATTH
COUPLER
DC_LIN_5V
16.8_MHZ_SINEWAVE
V_EXT_1.85 DC_LIN_5V
DC_LIN_1_875V_D CLK_16_8_MHZ
DC_LIN_1_5V DIG_DATA_SPI_MISO
DC_LIN_2_775V TXH
DIG_CTRL_RSTB DIG_TX_SSI_CLK
DIG_CTRL_LOCK DIG_TX_SSI_FS
DIG_CTRL_SSI_TRIGGER GPO1
DIG_DATA_SPI_MOSI GPO2
ulc_fgu_uhf2
GPO3
DIG_CTRL_I_LIMIT
DIG_SPI_CLK GPO4
DIG_CTRL_SPI_TRIDENT_PE GPO6
DIG_DATA_TX_SSI
DC_SUPER_FILTER_5V
IF23
VCO_IN GPO8
RX_LO
TX_INJ
TX_INJ
VCO_VCTRL
GPO5
GPO7
DIG_CTRL_ATTH
DC_LIN_5V
RF_SW_B+
IF18
DC_LIN_3V RF_OUT
RF_OUT
RX_IN
ulc_antswi_uhf2
FILT_RAW_B+ IF14
PA_OUT
IF8
ANT_SWI
DIG_VRVS
IF9
IF10
ANA_RX_FE_TUNE RF_RX_UHF1_FE_OUT
DC_LIN_1_8V
IF11
DC_LIN_1_8V_A
ulc_rxfe_uhf2
IF12
TL_RX_UHF1_FE_IN
IF13
DIG_CTRL_RXU
IF15
DC_SUPER_FILTER_5V IF20
VCO_OUT
IF16
GPO1
IF17
ulc_vco_uhf2
GPO2
IF19
VCTRL
IF22
ulc_tx_hf_uhf2 HF_OUT
HF_OUT
16.8_MHZ_SINEWAVE
CLK_16_8_MHZ
V_EXT_1.85
DC_LIN_1_875V_D
DC_LIN_3V
DC_LIN_3V
DC_LIN_5V
DC_LIN_5V
SPI_DSP_CLK_A
DIG_CTRL_SPI_PC
ABACUS_SPI_CS
DIG_CTRL_SPI_PE
SPI_DSP_MOSI
DIG_DATA_SPI_PD
DC_LIN_5V DIG_RX_SYNCB
F2_SYNCB
TL_RX_IF
DC_LIN_5V TL_RX_IF_OUT
ulc_mixer
TL_RX_LO
IF21
TL_RX_MIX_IN
TX_OP FGU HF VCO
SH1 SH5 SH8 SH11
ABACUS BALUN COUPLER MIXER
SH2 SH4 SH7 SH10
Figure 8-57. Transceiver (RF) Mainboard Overall Schematic
8-137
RX_CLK_CONN
CLK_SSI_RX RX_DA_CONN
DIG_DATA_SSI_RX_DOUTA RX_FSYNC_CONN
DIG_DATA_SSI_RX_FS
DIG_RX_BE_DOUTB
ULC_RX_BE
DRIVER RX_FE 2ND_LO
SH15 SH16 SH17
ALC ALC_DC GPS_BT
SH3 SH6 SH12