Motorola V545, V547, V550 Service Manual

Triplets Refresh Block Diagram Signal Description

Signal From To Description

1 ADDRESS(24) U800 U701 Multipexer input to select Memory Partition 1 or 2 of Flash Memory
2 AD_TRIG EXC_EN U900 Transmitt Mode indication to Pcap to adjust the Battery Meter between RX Idle Mode and Transmitt Mode
3 AD6 BATT_FDBK U900 Analog input to measure the Pull Down Resistor in the Charge accessory. Indicates the type of charger to the Phone
4 ADC DATA Q801 U800
5 ALERT- U900 Alert
6 ALERT+ U900 Alert
7 ANTENNA U301 R906
8 AOC_DRIVE U800 U300
9 ATI1.8V U900 J1300
10 AUD_REG U900 U900
11 AUDIO_IN J1400 U900 Analog Audio Input from Accesory to Pcap Audio Interface.
12 AUDIO_OUT U900 J1400 Analog Audio Output from Pcap Audio Interface to support Accesory.
13 B+ U900 U900 Main Source for the Phone supporting U900 power supply
14 BATT_DETB U900 U800
15 BATT_DETB U900 U800
16 BATT_FDBK U900 FL1400 - J1400
17 BATT+ M1700 Q952, U900
18 BB_I U150 U800
19 BB_IX U150 U800
20 BB_Q U150 U800
21 BB_QX U150 U800
22 BB_SAP_CLK U800 U301, U900
23 BB_SAP_FS U800 U301, U900
24 BB_SAP_RX U301, U900 U800
25 BB_SAP_TX U800 U301, U900
26 BB_SPI_CLK U800 U900
27 BB_SPI_MISO U900 U800
28 BB_SPI_MOSI U800 U900
29 BL_FB U900 R1459 FeedBack control signal to BL_SINK. R1459 will set the BL_SINK input current.
30 BL_SINK Backlight LED U900 SINK input to Pcap to control the LED current and on/Off function
31 BLUE_CLK_ENB U900 U301
32 BLUE_CTS U800 U301
33 BLUE_HOST_WAKEB U301 U800
34 BLUE_RESETB U900 U301
35 BLUE_RTS U301 U800
36 BLUE_RX U301 U800

Analog voltage Detect input to the Sense input of Neptune to indicate the Status of the Light sensor Q801
ALERT Out Negatve (-) from Alert amplifier to Alert speaker
ALERT Out Positive (+)from Alert amplifier to Alert speaker
ANTENNA Transmitt/ Receive signlal from/ to Bluetooth Chip

Bias control signal to U300 TX amplifier ( Automatic Output Control Driver)
Orginal VBUCK to supply the ATI Display driver IC

AUDio 2,775V support voltage for U900 internal functions

BATTery In/output detection to Sim Interface of U800. Renamed and used as SIM_PD at U800
BATTery DETection indication from PCap to U800 SIM Interface to force the VSIM_EN output of U800
BATTerie FeeDBacK Line to adjust the External Power Supplys to 1,4 Volt above Batterie Voltage Level
BATTery (+) output/input to Battery switch and U900 AD converter input

positive In phase baseband signal from receiver in Algae to A/D converter in Netune
negative In phase baseband signal from receiver in Algae to A/D converter in Netune
positive Quadratur-phase signal from receiver in Algae to A/D converter in Netune
negative Quadratur-phase signal from receiver in Algae to A/D converter in Netune

Base Band Serial Audio Port CLocK to Clock Audio Data Flow (Audio SPI Bus)
Base Band Serial Audio Port Frame Synchronisation to syncronize the Audio Frames (Audio SPI Bus)
Base Band Serial Audio Port Receive signal to U800 (Audio SPI Bus)
Base Band Serial Audio Port Transmitt signal to U900 and U301 (Audio SPI Bus)
BaseBand SPI Bus CLoc
BaseBand SPI Bus Master (U800) Input, Slave (U900) Output (Neptune /PCAP Control Communication)
BaseBand SPI Bus Master (U800) Output, Slave (U900) Input (Neptune /PCAP Control Communication)

Orginal CLK_32KHz from Pcap as Enable indication to the Bluetooth Chip

Clear To Send Data indication from U800 To U301 ( InterChip Communication)

Communication WAKEup signal from U301 to U800
Orginal RESETB from U900 to reset the Bluetooth Chip

Request To Send Indication from U301 to U800 Page 1of 5
Receive Data Communication from U301 to U800 ( InterChip Communication)

K to Clock Data Flow (Neptune /PCAP Control Communication)

37 BLUE_TX U800 U301
38 BLUE_WAKEB U800 U301
39 BTRF_REG U900 U301
40 BURSTCLK U800 U701
41 CE_1 U701 U700 Flash Memory chip select for Memory Partition 1 of the Flash IC U700
42 CE_2 U701 U700 Flash Memory chip select for Memory Partition 1 of the Flash IC U700
43 CHRGC U900 Q950 Analog Tuning Voltage to drive /control the current flow of the Charge Transistor Q950 into the Battery
44 CLK_32KHZ U900 U800, U1301
45 CLK_32KHZ_B U1301 J1300
46 CLK-13MHZ U800 U900
47 CM_IN U150 U800 Decoupled Ground Connection for RX BaseBand signals
48 CS0B U800 U701
49 CTS2 U800 U301
50 D- U900/ J1400 J1400/ U900
51 D+ U900/ J1400 J1400/ U900
52 DSEL0
53 DSEL1 J1400 U800
54 DSEL2 J1400 U800
55 EB0_B U800 U700
56 EB1_B U800 U700
57 ECBB U800 U700
58 EURO_US U800 U50 Band Selection Signal from Neptune to RX/TX Switch in Eagle IC U50
59 EXC_EN U800 U50, U150
60 EXT_B+ Q954 Q953, U900
61 EXTAL Y805 U800 26MHz reference clock differential input
62 FUN_SPI_CS U800 J1300
63 GA_1.2V U900 Q960
64 GA_INT U800 J1300 INTerupt to indicate the end of conversation on Communication Bus
65 GA_SPI_CLK U800 J1300
66 GA_SPI_CS U800 J1300
67 GA_SPI_MISO J1300 U800
68 GA_SPI_MOSI U800 J1300
69 GND PCB PCB
70 HANDSPKR- U900 U902
71 HANDSPKR+ U900 U902
72 HJACK_DET J1400 U900
73 HJACK_MIC J1400 U900
74 HJACK_SPKR U900 J1240
75

HKSW J1400 U800 Logic 0 indicates external unit is in Hands free mode Page 2 of 5

J1400 U800

Transmitt Data Communication from U800 To U301( InterChip Communication)

Communication WAKEup signal from U800 to U301
1,8 Volt regulator output from Pcap to support the BT Chipset U301

BURST CLocK to clock U700 to syncronize the loading of addresses and delivery of burst read data

32KHZ CLocK output to RTC timer interface in Neptune and J1300
Buffered 32Khz CLocK to support the Camera Driver with system Clock
13 MHz Core CLocK to PCap

Chip Select 0 - active low output is used as external Flash Memory chip select
Clear To Send Data indication from U800 To U301 ( InterChip Communication)

USB Data- line in/output passing the FL1400 ESD protection Fliter
USB Data+ line in/output passing the FL1400 ESD protection Fliter
This pin is used to select between serveral different Dumb type devices ( External Audio devices like MP3Player, FM Radio...)
This pin is used to select between serveral different Dumb type devices ( External Audio devices like MP3Player, FM Radio...)
This pin is used to select between serveral different Dumb type devices ( External Audio devices like MP3Player, FM Radio...)
Used as write Enable to partition of SRAM
Used as write Enable to partition of SRAM

End Off Curret Burst-active low(B)- to indicate to FLASH the end of current burst sequence.

EXCiter ENable active high to drive the Switch Control Circuit to TX mode and TX indication to Eagle IC

Over Voltage controlled RAW_EXT_B+ as Source for Charger and B+ support

FUNlight SPI Chip Select. Orginal BB_SPI_CS0 from Neptune
1,2V Supply Used to enable Q960

Graphic Accelerator SPI Bus CLocK to Clock Data Flow (Neptune /PCAP/ Display Control Communication) Orginal BB_SPI_CLK
G

raphic Accelerator SPI Chip Select Orginal BB_SPI_CS6

Graphic Accelerator SPI Bus Master (U800) Input, Slave (U900) Output (Neptune /PCAP/Display Control Communication) Orginal BB_SPI MISO
Graphic Accelerator SPI Bus Master (U800) Output, Slave (U900) Input (Neptune /PCAP/Display Control Communication) Orginal BB_SPI_MOSI
GrouND connection

Audio amplifier output (-) to Flip connector to support the Earpeace SPeaKeR
Audio amplifier output (+) to Flip connector to support the Earpeace SPeaKeR
active low interupt (will be pulled to GND if headset is connected) to headset detect in U900.
analog HEaDphone MICrophone signal as input to Aux. microphone amplifier. Biased by MIC_BIAS2 output from U900 if Headset is connected.
Audio signla output from U900 to support the Headset SPeaKeR