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1C701 Display Microcomputer (CXP5058H-661Q)
The Microcomputer controls key input, FL tube display, remote control signal input, level meter (IC702) and EEP-ROM (IC703) according to
instructions from the Main Microcomputer (IC312).
Micom: Microcomputer
e_-v_SEG
FL tube FL701 | FL Segment 'e'-'v'
10_-1_G
FL tube FL701 | FL Grid #10-#1
oscillator
Ceramic
oscillator
EXTAL
4.19MHz ceramic oscillator
System Reset (Active "L")
Not in use
Power terminal (+5 V)
Key input A/D converter input #0 - #7
Not in use
Panel switch
DISP_CK
MAIN Micom | Shift clock
So
MAIN Micom | Serial data OUT
SI
MAIN Micom | Serial data IN
DSP_ACK
MAIN Micom | Acknowledge (Active"L")
MODE (counter) switch (Active"L")
REC MODE "H": Standard, "L": Long
Level Meter Data 0-3
Level Meter Data 0, 1
Level Meter Read Mode (Active "L"')
COUNTER MODE
REC MODE
LVL_DT_0-3
LVL_ADRS_O, |
Level Meter IC
Level Meter IC
Level Meter IC
Level Meter IC
Level Meter Write Mode (Active "L")
LVL_SEL
Level Meter IC | Level Meter IC Select (Active "L")
SBM_LED
Q791 Base
RMC MON
Remote sensor | Remot control signal input
Remote sensor | Remot control signal input
Test mode (Active "L'"')
Level meter mute (Active "L")
BUSY signal (Active "L")
Data input
Data output
TR_MUTE
BUSY
ROM_DT_IN
ROMDI-OUT
Shift clock
Chip enable
Equipment model discrimination input. Fixed at "H" with the equipment
Power terminal (GND)
Not in use
Not in use
Not in use
Analog board reference voltage
FL display tube driving voltage
FL Segment 'a'-'d'
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