Panasonic KX-MB771GR Service Manual

Contents

23KX-MB771GRR23 PIO13 O 3.3V NOT USEDR24 PIO12 O 3.3V NOT USEDR25 PIO14 O 3.3V NOT USEDR26 PIO15 O 3.3V NOT USEDT01 SDMD0 I/O 3.3V SDRAM DATA BUS 0T02 SDMD1 I/O 3.3V SDRAM DATA BUS 1T03 NSDCAS O 3.3V SDRAM CAST04 NSDRAS O 3.3V SDRAM RAST11 VSS - GND GNDT12 VSS - GND GNDT13 VSS - GND GNDT14 VSS - GND GNDT15 VSS - GND GNDT16 VSS - GND GNDT23 PIO9 O 3.3V OUTPUT PORT(SNPICK)T24 PIO8 O 3.3V NOT USEDT25 PIO10 O 3.3V NOT USEDT26 PIO11 O 3.3V OUTPUT PORT(SNREG)U01 SDMD2 I/O 3.3V SDRAM DATA BUS 2U02 SDMD3 I/O 3.3V SDRAM DATA BUS 3U03 NSDWE O 3.3V SDRAM WRITE ENABLEU04 VDD1.2 - 1.2V POWER SUPPLYU23 VDD3.3 - 3.3V POWER SUPPLYU24 PIO0 I 3.3V INPUT PORT (HOOK)U25 PIO1 O 3.3V OUTPUT PORT(EXTRLY)U26 PIO7 O 3.3V NOT USEDV01 SDMD4 I/O 3.3V SDRAM DATA BUS 4V02 SDMD5 I/O 3.3V SDRAM DATA BUS 5V03 SDCKE O 3.3V SDRAM CLOCK ENABLEV04 SDMA12 O 3.3V SDRAM ADDRESS BUS 12V23 PSCIO20 O 3.3V NOT USEDV24 PSCIO21 O 3.3V NOT USEDV25 PSCIO22 O 3.3V NOT USEDV26 PSCIO23 O 3.3V NOT USEDW01 SDMD6 I/O 3.3V SDRAM DATA BUS 6W02 SDMD7 I/O 3.3V SDRAM DATA BUS 7W03 SDMA11 O 3.3V SDRAM ADDRESS BUS 11W04 SDMA9 O 3.3V SDRAM ADDRESS BUS 9W23 PSCIO16 O 3.3V NOT USEDW24 PSCIO17 I 3.3V INPUT PORT (FANDET2)W25 PSCIO18 I 3.3V INPUT PORT (TOPCVR)W26 PSCIO19 I 3.3V INPUT PORT (PSTART)Y01 VSS - GND GNDY02 SDCLK O 3.3V SDRAM CLOCK 1Y03 SDMA8 O 3.3V SDRAM ADDRESS BUS 8Y04 VSS - GND GNDY23 AFESEL0 I 3.3V NCU INTERFACEY24 AFESEL1 I 3.3V NCU INTERFACEY25 EXMDMCS O 3.3V NOT USEDY26 DP O 3.3V NCU INTERFACEPIN NO. PinName I/O POWER SUPPLY VOLTAGE EXPLANATION