Kyocera ECOSYS FS-6950DN, Service Manual

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2F7
2-3-8
2-3-3 Main PWB
Figure 2-3-5Main PWB block diagram
MCS N [4:0] , MC KE[4:0],
M R AS N, MCAS N, M WEN,
M B A [1:0] , M DQ S [3:0],
D M [3:0], MC K P [6, 4:3, 1:0],
MC KN [6, 4:3, 1:0],
M REFO U T P , M REFO U TN,
M REF I N P , M REF I NN
RO MA [4:2], RO M K,
RO MCS N [1:0],
RO M OEN [0],
RO M WEN [0],
RO M B, RO M RB
RO MA [1],
RO MCS N [2],
RO M OEN [1]
K UI O CS N [0], K UI O I ORN [0],
K UI O I OWN [0], K UI ORDY [ 0 ],
K UI ODREQ [0], K UI O AC KN [0],
K UI OD AC KN [0],
K UI OR S TN [0], K UI O I RN [0]
C F0 CS N [1:0],
C FOEN [0], C FWEN [0],
C F0 C DET [2:1],
C FW AI TN [0], C FR S T [0],
F PC LK, F P D I R
F P D A T,
F P R S TN
DB C LK,
DBTXD,
DBRXD
R S TN
SC LKN, S O, SI ,
S B S Y, S D I R
RXD, TXD, RT S , C T S ,
D S R, S TR, ( R SS EL )
U D P ,
U D M , U REXT,
U RKELV I N,
US B I NTTH,
US BVB US H
US B C LK, U RE S ET,
U RV A L I D, U TXRE A DY,
U RX AC T I VE, U RXERR,
U O PM ODE [1:0] ,
U L S T A TE [1:0] ,
USUSPP END,
U TER MS EL, U TXV A L I D,
US BD A T A [15:0],
U X C VR S EL
H US BD P
H US BD M
VB USS W
O U T P EN, P DN
VD A T AP /N [2:1]
SAMP LEN [2:1]
P OW C ONT
BE AMS EL A /B [2:1]
P OL C LK
P D A T A [8:1], N S TROBE,
NF AU LTN I N I T, S ELE C T,
N AU TOFD, N S EL I N,
P 1284D I R, B US Y,
P ERROR, N AC K
E C R S , E C OL, ETXEN,
ETX C LK, ETXD [3:0],
ERXER, ERXDV,
ERX
C LK, ERXDV [3:0],
E M D I O, E M D C , P HY I R,
MAC LED
P HY
T rans -
f or m er
N etwork I /F
( E ther)
D ebu gg er
Parallel I /F
Me m ory
card
O peration
panel P WB
V ideo
T ransceiver
P HY
K UI O
LD [15:0]
LD [15:0]
LD [15:0]
LD [1 5:0]
M DQ [31:0]
CPUA [31: 0]
CPU DH [31:0]
MA [12:0] [15:0]
L atch L evel shi f t
DDR
S DR AM
Code
D IMM
F ont
RO M
[23: 2]
EXTBOEN
PPC 750 C X r ASIC
L A [23:5]
E n g ine
P WB
Serial I /F
US B 2 . 0
I /F
L A [21:2]
L A [16:2]
L A [11:2]
US B 1 . 1
I /F host