17. NO MENU
1 7 . I n v a l i d i t y
18. IF STATUS (Input function status)
Not for service.
D S T : 7 1 0 E 0 F 2 3 9 0
19. BUS CHECK
This menu is used to check the communication and bus line connection between devices on the DIGITAL P.C.B.
19-1. TI (DSP) BUS check
Communication and bus line connection between microprocessor (IC221) and TI (IC241) are checked.
T I B U S : N o E r
E E P R O M B U S : O K
20. NO MENU
2 0 . I n v a l i d i t y
19-2. EEPROM BUS check
Communication and bus line connection between microprocessor (IC221) and EEPROM (IC222) are checked.
OK: No error detected.
NG: An error is detected.
NoEr: No error detected.
BOOT:
When “Boot” is displayed for a few seconds or
“Boot” and “NoEr” are displayed alternately,
there is a possibility that an error had occurred.
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HTR-2064/NS-B20/NS-C20/NS-SWP20
HTR-2064/NS-B20/ NS-C20/NS-SWP20