Rev. A
Product Overview
Appendix D-43
TM-H6000/H6000P Service Manual
Confidential
Memory Circuit Board
An outline of the memory board configuration and specifications is provided below.
❏
Program ROM (Flash memory, U508)
❏
Font ROM (Flash memory, U513)
❏
Volatile RAM (SRAM, U509)
❏
EEPROM for Future Expansion (Electrically erasable NAND memory, U512)
Program Updates
Program uploads can be performed over communication lines (via the interface board).
TableD-2 Program ROM specifications
Item
Specification
Application
Mainly for storage of programs
Capacity
Standard: 4 Mbit
8 Mbits may be used, depending on specifications. Circuit also is compatible with
16 Mbits (reserved)
Access Speed
70 ns
TableD-3 Font ROM specifications
Item
Specification
Application
Mainly for storage of fonts
Capacity
Standard: 4 Mbit
8 Mbits may be used, depending on specifications. Circuit also is compatible with
16 Mbits (reserved)
Access Speed
70 ns
TableD-4 Volatile RAM specifications
Item
Specification
Application
Receive buffer
Print buffer
Capacity
1 Mbit
Circuit also is compatible with 2 Mbits (reserved), which can be used as external
memory.
Access Speed
55 ns
Other
SRAM is used.
Flags and stacks use CPU internal RAM (256 bytes)
TableD-5 Specifications for the EEPROM for future expansion
Item
Specification
Model
TC5816BFT (Toshiba) etc.
Firmware Support
Not determined
Summary of Contents for TM-H6000
Page 1: ...Confidential Service manual TM H6000 H6000P English 401040800 Issued Date 199 Issued by ...
Page 29: ...1 20 Troubleshooting Rev A Confidential ...
Page 69: ...Disassembly and Assembly 2 40 Rev A Confidential ...
Page 81: ...3 12 Adjusting Rev A Confidential ...
Page 83: ...Appendix A 2 Service Tools and Lubricants Rev A Confidential ...
Page 87: ...Appendix B 4 Maintenance Rev A Confidential ...
Page 225: ...I 10 Printer Handling Rev A Confidential ...
Page 227: ...Appendix J 2 Screw Types Rev A Confidential ...
Page 229: ...K 2 Parts Layout Rev A Confidential Main Circuit Board Unit solder side memory board ...