Motorola APX 1000 Detailed Service Manual page 921

Schematics, Boards Overlays, and Parts Lists: Transceiver (RF) Boards: UHF1 (84012620001)
8.3 Transceiver (RF) Boards: UHF1 (84012620001)
UNSW_B+
V_2.8_RF
V_SW_3.60
RF_ANT
BAT_STATUS
ISET
RF_DAC_SPI_CS
V_EXT_1.85
DIG_CTRL_I_LIMIT
TX_INHIBIT
SPI_DSP_MOSI
F2_DMCS
F2_PARAMP
RF_SW_B+
DIG_CTRL_ATTH
HF_OUT
TX_FSYNC_CONN
TX_CLK_CONN
SPI_DSP_MISO
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_LIN_1_8V
DC_SWI_3_6V DC_LIN_3V
ulc_dc DC_LIN_3V
DC_LIN_5V
RF_ANT
RF_SW_B+
DC_BATT
BAT_STATUS
1 IF1 1
FILT_RAW_B+
PA_OUT
1 IF2
TX_7V
ulc_uhf1_pa
TX_INJ
1 IF3 1
TX_INJ
IF5
1 1
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
DC_LIN_3V TX_7V_1
DC_LIN_5V
VCTRL
DC_LIN_5V
DC_RAW_B+
RF_OUT
DIG_CTRL_I_LIMIT RF_ANT
DIG_CTRL_TX_INH TX_SWI
ULC_ALC
DIG_DATA_SPI_MOSI
DIG_DMCS
DIG_GPIO49
DIG_SPI_CLK
SW_B+
TXH_1
DIG_CTRL_ATTH
COUPLER
16.8_MHZ_SINEWAVE
DC_LIN_5V
DC_LIN_5V
V_EXT_1.85
DC_LIN_1_875V_D CLK_16_8_MHZ
DC_LIN_1_5V
DC_LIN_1_5V DIG_DATA_SPI_MISO
V_2.8_RF
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_uhf1 GPO3
DIG_CTRL_I_LIMIT
DIG_SPI_CLK GPO4
DIG_CTRL_SPI_TRIDENT_PE GPO6
DIG_DATA_TX_SSI DC_SUPER_FILTER_5V
1 IF23
VCO_IN GPO8
RX_LO
TX_INJ TX_INJ
VCO_VCTRL
GPO5
GPO7
DIG_CTRL_ATTH
DC_LIN_5V
RF_SW_B+
IF6
RF_OUT 1 IF18
DC_LIN_3V
RF_OUT
RX_IN 1 IF14
IF7
ulc_antswi_uhf1
FILT_RAW_B+
PA_OUT
1
IF8 ANT_SWI
DIG_VRVS
1 IF9
1 IF10
ANA_RX_FE_TUNE RF_RX_UHF1_FE_OUT
DC_LIN_1_8V 1
IF11
DC_LIN_1_8V_A
ulc_rxfe_uhf1
1 IF12
TL_RX_UHF1_FE_IN
1 IF13
DIG_CTRL_RXU
1
IF15
DC_SUPER_FILTER_5V
IF20
1
VCO_OUT
1 IF16
GPO1
1
IF17
GPO2 ulc_vco_uhf1
1
IF19
VCTRL
IF22
1
ulc_tx_hf_uhf1
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
DIG_RX_SYNCB
DC_LIN_5V F2_SYNCB
TL_RX_IF
DC_LIN_5V TL_RX_IF_OUT
ulc_mixer
TL_RX_LO
IF21
1
TL_RX_MIX_IN
TX_OP FGU HF VCO
SH1 SH5 SH8 SH11
ABACUS BALUN COUPLER MIXER
SH2 SH4 SH7 SH10
Figure 8-29. Transceiver (RF) Mainboard Overall Schematic
8-90
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