Service manual

Figure 2-6-1
Figure 2-6-2
CHAPTER 2
2 - 34
19
1
36 18
J1
2
1
20
19
J2
J3
2
1
IC2
IC3
IC1
Cellbase IC
CPU
DRAM
Bi-Directional Parallel I/F
X'tal
Printer Engine
SCIN
SCLKIN
SCOUT
AD[7 .. 0]
WR_N
RD_N
ALE
CPUCLK
CPURST_N
BDOUT_N
SCLK
SC
nBD
nRESET
nVDO
VDO
nSELIN nERROER nINTT nAUTOFD SELECT PERROR BUSY nACK DATA[7 .. 0] nSTROBE
DRA[9 .. 0] CAS_N MD[7 .. 0] RAMWR_N RAS_N