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CN506 IC501 ASIC
+24V, +5V, PG, DG ADR [15:13]
TO
RBA [5:0]
POWER ADR [12:0]
SUPPLY DB [7:0]
XRD
CN505 THDAT, THCLK, THLAT XWR
TO STB1, STB2
TM IC512 FLASH
THERMAL
IC502 ROM IC503 DRAM IC504 SRAM MEMORY IC505 MODEM
ADR [12:0]
ABR [5:0]
ADR [12:0]
ABR [5:0]
ADR [11:0]
ABR [0:2]
ADR [4:0]
HEAD +24V
IC506 D [7:0] D [7:0] D [7:0] D [7:0] D [7:0]
+24V ADR [4:0]
ADR [17:0] ADR [17:0] ADR [14:0]
XWR XWR XWR XWR
XRD XRD
XROMCS XCS XRD XRD XRD
XRAS CLE XCS 32.256MHz
+5V XCAS ALE
XCS RX
CN505 IC508 R/B TX
W/P
TM [3:0] TM [3:0] VCC
TO
MOTOR XRAS
TXE XCAS
XMODEMCS
CN504
TO OP-RESET Q513 CN509
KSTART, KLATC, KSCLK FMEMDI
OPERATION TO
KTXD
PANEL FMEMDO MIC
KRXD, JOG1, JOG2
FMEMCS
FMEMCLK
PS501 XORESET IC522
SENLEDON DTMF
Receiver
XORESET
PTOP MIDATA IC514
CN501/CN507
SW501 MICLK ANALOG ASIC
MILAT TO
FILMEND
+5V/BATT +3.3V ANALOG
24MHz +3V/BATT +5V BOARD
RESET IC +5V
XWDERR
32.768KHz IN
WRESETI OUT
CN508 BATT
IC520 GND
TO RXD
PC INTERFACE
IC521
UNIT
TXD CONTROL SECTION BLOCK DIAGRAM
KX-FM90PD-W