Kyocera FS-1920 Service Manual page 144

2FP/2FY/2FR
For FS-3820N/3830N models (KP-1033)
FSDM,
YC5
FSDP
DATA+,
DATA-
HSDM,
HSDP
Q4
Q2
Digital
transistors
USBINT
USBVBUS
100UT+,
YC6
TXOP,
100UT-,
TXON
100UTC
100UR+,
U24
100UR-, RXIP,
Pulse
100URC RXIN
trans
Q3
Digital
YC4
transistor
PNSELIN
PNSTROBE,
PNAUTOFD, PNINIT
PNACK, PBUSY,
PPERROR
PSELECT, PFAULT
PPDATA7-0
YC11
DTR, RTS, TXD
Option serial I/F
CTS, DSR, RXD
RSSEL
YC7
FPCLK
FPDIR
FPDAT
RESETN
VDEONSPL
BDN
VDATAP, VDATAN
SO, SCKN
SI, SBSY, SDIR, EGIRN
OPSCLK, OPSDO, OPSEL[0-2]
OPSDI, OPREADY
OP5V
YC8
2.5 V Regulator 3.3 V Regulator
+5 V
+5 V +2.5 V
U28 U27
1.8 V Regulator
+5VAR +1.8 V
U29
+5 V
2-3-2
VALIDH
USBCLK, LINESTATE0-1,
TXREADY, RXERROR,
RXVALID, RXACTIVE
U23
USBRST, SUSPENDM,
USB2.0
TESTCTR2-3, OPMODE0-1
PHY
TERMSELECT, TXVALID
PVIDEO7-0
XIN
X'tal (USB)
X4
XOUT
48.0 MHz
TX_CLK, RX_ER, RX_CLK,
RX_DV, COL, CRS, PHY_IRN
TX_EN, MDC
MDIO
U25
TX_D3-0
Ether
PHY
RX_D3-0
XIN
X'tal (Ether)
X5
XOUT
25.0 MHz
NSELIN
U22
NSTROBE,
NAUTOFD, NINIT
NACK,BUSY,
PERROR
SELECT, FAULT
PDATA7-0
P1284DIR
U03
X'tal (SSCG)
X1
SSCG
16.6667 MHz
CXIN
X2
CXOUT
25.0 MHz
VXIN
+3.3 V
X3 VXOUT
X'tal (Video)
23.2452 MHz
R128, R129, R130, R131
+5VAR
Resistor
Figure 2-3-2 Main board (KP-1033) circuit block diagram
CPUD31-0
CPUA31-0
CPUA22-2
Buffer
PVIDEO7-0
WEN0, OEN0, CSN2, BDN,
FSYNC, SVCCLKN
SRCCLKN, XLIDATA
LA3-2
CDET1A, CDET1B, CFWAITN1
CFCS1LN, CFCS1HN, CFOEN1,
FCWEN1, FCRST1
LA20, LA11-2
CDET2A, CDET2B, CFWAITN2
CFCS2LN, CFCS2HN, CFOEN2,
FCWEN2, FCRST2
LA22-5
ROMA4-2
CSN0, CSN1, OEN0, WEN0, NANDCSN
FRB
U02
ASIC
CSN1, OEN2
ROMA1
LA21-2
CSN1, OEN3
ROMA1
LA21-2
OPRSTN1
OPRDY1, DMAACKN1, IORN1,
IOWN1, KUIOCSN1
DMAREQ, IODATAACKN1, OPIRN1
LA15-1
SDCLK1-2
DQMN3, DQMN2
DQMN1, DQMN0
SDRASN, SDCASN, SDWEN, BA1, BA0, SDCLKE
IICSCL
IICSDA
SDCSN2-3
SDRAM Address bus
SDA12-0
SDCLK0
SDRAM
SDCSN0
SDRAM
SDA12-0
SDCLK3-4
SDCSN4-5
SDRAM Data bus
U04, U06, U08, U10
Local data bus
Buffer
CPUD31-0
CPUA31-0
U01
PPC750CXe
U30
XL1
YC2
Option
memory
card
socket
CFA20, CFA11-2
Buffer
YC3
CFA20, CFA11-2
Option
Hard
disk
socket
System
DIMM
Slot 1
(Code ROM)
U12
Font
Mask ROM
API ROM
YC1
Option I/F
KUIO-LV (3.3 V)
SDA12-0
SDD31-16
U14
U15
SDD15-0
SDD31-0 SDD31-0
LD31-0
YC10
TDO
TDI ,TCK,
TMS, HALTN
RISC watch
connector
LD15-0
U17, U18
CF15-0 LD15-0
U16, U19
MCFD
LD15-0
15-0
YS1
LD31-0
LD15-0
U11
LD15-0
Socket
LD15-0
SDD31-0
Option
SDRAM
DIMM
Slot 1
YS2
SDD31-0
Option
SDA12-0
SDRAM
DIMM
Slot 2
(For
FS-3830N
model
only)
YS3