JM9830A-ROM-001
JM HP9830A ROM Card Assembly Manual
1
JM9830A-ROM – 001
Revision 1
Copyright © J. S. Walker 2019
Page 1: ...JM9830A ROM 001 JM HP9830A ROM Card Assembly Manual 1 JM9830A ROM 001 JM HP9830A ROM Card Assembly Manual Revision 1 Copyright J S Walker 2019...
Page 2: ...s or how it should be used The builder must have the ability to assemble electronic circuit boards and also understand the correct handling precautions for electronic components Preparing the board Be...
Page 3: ...d for the all the IC s 1 Start by fitting IC sockets if sockets are to be used 2 Fit the resistors 3 Fit the capacitors 4 Fit the DIL switch 5 Fit the IC s Note that the ROM will need to be programmed...
Page 4: ...Resistor 1 R4 2k2 Resistor 1 U1 IC M27C400 1 U2 IC 74LS148 1 U3 IC 74LS04 1 U4 IC 74LS04 1 U5 IC 74LS07 1 U6 IC 74LS07 1 U7 IC 74LS07 1 U9 IC 74LS148 1 U10 IC 74LS00 1 U11 Resistor Bus Array 8 resist...
Page 5: ...heat sink using the M3 nut and bolt to secure it Bolt the regulator in place before soldering 6 Fit the Coin cell holder if battery backup is required See the note above 7 Fit the IC s noting correct...
Page 6: ...JM9830A ROM 001 JM HP9830A ROM Card Assembly Manual 6 Board Image 1...
