Service manual

Service Manual
4MB RAM card (optional upgrade)
Item
Description
Oty
1
BARE PCB
1
2
PCB ASSEMBLY DRG
1
3
PCB CIRCUIT DIAGRAM
1
15
LABEL SERIAL PCB
1
C1
CPCTR 47U TANT SMD
1
C2
CPCTR 47U TANT SMD
1
C3
CPCTR 47U TANT SMD
1
C4
CPCTR 47U TANT SMD
1
C5
CPCTR 33N DCPLR SMD1210
1
C6
CPCTR 33N DCPLR SMD1210
1
C7
CPCTR 33N DCPLR SMD1210
1
C8
CPCTR 33N DCPLR SMD1210
1
C9
CPCTR 33N DCPLR SMD1210
1
C10
CPCTR 33N DCPLR SMD1210
1
C11
CPCTR 33N DCPLR SMD1210
1
C12
CPCTR 33N DCPLR SMD1210
1
C13
CPCTR 33N DCPLR SMD1210
1
C14
CPCTR 33N DCPLR SMD1210
1
ICI
IC 1MX4 DRAM 80NS SOJ
1
IC2
IC 1 MX4 DRAM B0NS SOJ
1
IC3
IC 1 MX4 DRAM 80NS SOJ
1
IC4
IC 1 MX4 DRAM 80NS SOJ
1
IC5
IC 1 MX4 DRAM 80NS SOJ
1
IC6
IC 1 MX4 DRAM 80NS SOJ
1
IC7
IC 1 MX4 DRAM B0NS SOJ
1
IC8
IC 1 MX4 DRAM 80NS SOJ
1
IC9
IC 74AC04 CMOS 14P SMD
1
IC10
IC MEMC1A 1 2MHZ PLSTC
1
L1
CHOKE 80R/100MHZ SMD
1
L2
CHOKE 80R/100MHZ SMD
1
L3
CHOKE 80R/100MHZ SMD
1
PL1
CONR 96W PLG RA ABC PCB
1
R1
RES 68R SMD 5% 0W25 1206
1
R2
RES 68R SMD 5% 0W25 1206
1
R3
RES 68R SMD 5% 0W25 1206
1
R4
RES 68R SMD 5% 0W25 1206
1
R5
RES 68R SMD 5% 0W25 1206
1
R6
RES 68R SMD 5% 0W25 1206
1
R7
RES 68R SMD 5% 0W25 1206
1
R8
RES 68R SMD 5% 0W25 1206
1
R9
RES 68R SMD 5% 0W25 1206
1
R10
RES 68R SMD 5% 0W25 1206
1
R11
RES 68R SMD 5% 0W25 1206
1
R12
RES 68R SMD 5% 0W25 1206
1
R13
RES 68R SMD 5% 0W25 1206
1
R14
RES 68R SMD 5% 0W25 1206
1
R15
RES 68R SMD 5% 0W25 1206
1
R16
RES 68R SMD 5% 0W25 1206
1
R17
RES 68R SMD 5% 0W25 1206
1
R18
RES 68R SMD 5% 0W25 1206
1
R19
RES 68R SMD 5%0W25 1206
1
R20
RES 68R SMD 5% 0W25 1206
1
R21
RES 68R SMD 5% 0W25 1206
1
R22
RES 68R SMD 5% 0W25 1206
1
R23
RES 68R SMD 5% 0W25 1206
1
R24
RES 68R SMD 5% 0W25 1206
1
R25
RES 68R SMD 5% 0W25 1206
1
R26
RES 68R SMD 5% 0W25 1206
1
R27
RES 68R SMD 5% 0W25 1206
1
R28
RES 68R SMD 5% 0W25 1206
1
R29
RES 68R SMD 5% 0W25 1206
1
R30
RES 68R SMD 5% 0W25 1206
1
R31
RES 68R SMD 5% 0W25 1206
1
R32
RES 68R SMD 5% 0W25 1206
1
R33
RES 33R SMD 5% 0W25 1206
1
R34
RES 33R SMD 5% 0W25 1206
1
R35
RES 33R SMD 5% 0W25 1206
1
R36
RES 33R SMD 5% 0W25 1206
1
R37
RES 33R SMD 5% 0W25 1206
1
R38
RES 33R SMD 5% 0W25 1206
1
R39
RES 33R SMD 5% 0W25 1206
1
R40
RES 33R SMD 5% 0W25 1206
1
Notes on MEMC:
MEMCs MUST be Acorn Part Number 2201,393, to
ensure correct timing parameters.
To allow for future expansion, PL1 pins A25,16 and 8
should be left open circuit, not connected to +5V. This
change will be carried out on any future issue of the PCB.
Backplane adaptor
Item
Description
Oty
1
BARE PCB
1
2
PCB ASSEMBLY DRG (1 PER BATCH)
1
3
PCB CIRCUIT DIAGRAM (1 PER BATCH)
1
15
LABEL SERIAL PCB 15x50mm
1
C1
CPCTR 33/47N DCPLR 0.2"
1
C2
CPCTR 33/47N DCPLR 0.2"
1
C3
CPCTR 33/47N DCPLR 0.2"
1
C4
CPCTR 47U ALEC 16V AX
1
C5
CPCTR 47U ALEC 16V AX
1
C6
CPCTR 47U ALEC 16V AX
1
IC1
IC 74HC139 CMOS 16/0.3"
1
IC2
BP INT MASK PAL(0760003)
1
IC3
BP INT MASK PAL(0760003)
1
PL1
CONR 96W PLG RA ABC PCB
1
R1
RES 10K C/MF 5% 0W25
1
R2
RES 10K C/MF 5% 0W25
1
R3
RES 10K C/MF 5% 0W25
1
R4
RES 10K C/MF 5% 0W25
1
SKI
CONR 64W SKT ST AC PCB SH
1
SK2
CONR 64W SKT ST AC PCB SH
1
SK3
CONR 64W SKT ST AC PCB SH
1
SK4
CONR 64W SKT ST AC PCB SH
1
6-6 Issue 2, June 1991 Part 6 - Parts lists