Star Micronics NX-1000 series - Waveform with Oscilloscope

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7. Waveform with Oscilloscope
Non : For parallel type (Ver. 1)
( ) : For parallel type (Ver. 1.5)
[ ] : For commodore type
(1) Crystal (10 MHz) (2) RESET (Power on reset)
Crystal Pin 30 of IC5 Upper : RESET input Pin 4 of IC6
(Pin 30 of IC1) (Pin 4 of IC6)
[Pin 30 of IC5] [Pin 4 of IC6]
Time/Div : 0.2 µs Lower : RESET output Pin 5 of IC6
Volt/Div : 1V (Pin 5 of IC6)
[Pin 5 of IC6]
Time/Div : 10 ms
Volt/Div : 2V
(3) Protection Circuit (4) Head Energizing Control Signal
Upper : RESET Pin 5 of IC6 Upper : HD-EN Pin 1 of IC1
(Pin 5 of IC6) (Pin 57 of IC4)
[Pin 5 of IC6] [Pin 1 of IC2]
Lower : WD OUT Pin 59 of IC5 Lower : HD1 Data Pin 42 of IC1
(Pin 59 of IC1) (Pin 40 of IC4)
[Pin 59 of IC5] [Pin 42 of IC2]
Time/Div : 5 ms Time/Div : 0.2 ms
Volt/Div : Upper 2V Volt/Div : 2V
Lower 1V
(5) Print Head Control Signal and Waveform (6) Carriage Motor Common Control Signal and
Diving Signal
Upper : HD1 Data Pin 42 of IC1 Upper : CR-CMN Control Signal Pin 21 of IC5
(Pin 40 of IC4) (Pin 21 of IC1)
[Pin 42 of IC2] [Pin 21 of IC5]
Lower : HD 1 Pin 1 of CN8 Lower : CR-CMN Driving Signal Pin 1 of CN6
(Pin 1 of CN8) (Pin 1 of CN6)
[Pin 1 of CN9] [Pin 1 of CN7]
Time/Div : 0.5 ms Time/Div : 0.5 ms
Volt/Div : Upper 5V Volt/Div : Upper 2V
Lower 20V Lower 20V