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Page: 137
Service Guide ML395/395C
Chapter A Board Diagrams
A.2.01 Main Controller Board (TFCB)
Firmware
Q6: Program ROM of Master MPU
Q7: Character Generator ROM
Q17: Program ROM of Slave MPU
Fuses
F1 2.0 Amp 125V. Protects the +38 vdc circuit
Jumpers
SP1
Hard wired
SP2
A Side: indicates that the Font ROM is masked within the CPU (Q-11).
B Side: indicates that the Font ROM is located in IC socket (Q-7)
SP3
OPEN - Monochrome Model
SHORTED - Color Model
Sensors
NONE
Switches
NONE
Test Points
+ 38 vdc Printhead, space/linefeed/bail-ribbon motor drive voltage.
Check on both ends of Capacitor C2.
+ 5 vdc Logic IC/LED drive voltage.
Содержание Microline ML395C
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Страница 230: ...Below is an index to the illustrated parts breakdown charts Description Section Upper Cover Assembly B 2 01...
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