Circuit Boards - Yamaha DISKLAVIER MX1Z Service Manual

CONTROL BOARD
***** TEST MODE *****
**** CONTROL SHEET ****
VO. 13 Oct 12 1996
Japananese UPS DB51
(1) 7SEG & LED Test
(2) LCD Test
(3) Sound Test
Press [PLAY]
(4) Switch Test
(Switch & Rmt Ctl)
(5) DRAM Test
Press [PLAY]
(6) Flash R / W Test
Press [PLAY]
(7) Flash Read Test
Press [PLAY]
(8) Host I / O Test [PC2]
(9) MIDI I / O Test
OK!
(10) Piano I / O Test
OK!
(11) DB50 I / O Test
L R
(12) FDD Write & Read Test
Press [PLAY]
(13) FDD Read Test
Press [PLAY]
• Title display
Test & Loader : V1 . 11
Japanese UPS DB51
CTRL Program Version No. –
English Japanese can be changed by (L), (R) button.
UP GP S4 can be changed by using the dial.
Silent active/inactive can be set by
• 7SEG (7 Segment LED) and panel buttons LED lights test
(2) LCD Test
• LCD (Liquid Crystal Display) test
(3) Sound Test
1000 Hz
• Speaker sounding test (Metronome sound test)
• Operating buttons/remote control buttons/dial switching test.
The number for each button and switch is displayed on the 7SEG.
(5) DRAM Test
OK!
• RAM test
Note: No table data will be cleared.
(6) Flash R / W Test
Sect = 0C050000
• ROM test
Note: No table data will be cleared.
(7) Flash Read Test
OK! (FD6EE774)
• FLASH READ TEST
Note: No table data will be cleared.
• TO HOST communication test
Operation of switch changes the display: [MAC]/[PC2]/[PC1]/[MIDI]
• MIDI communication test
(Connect MIDI OUT to MIDI IN with a MIDI cable before the test)
• Communication test between the control unit and PK-CTL circuit board.
Keyboard and pedals do not operate.
• Ensemble-sound test. Sends NOTE-ON signals to internal tone generator. (Speaker connected)
• FDD (floppy disk drive) write/read test. (Insert formatted disk.)
Note that the test will erase any existing floppy-disk data. (Do not execute if market service)
• FDD read (only) test. (Insert formatted disk.)
(Do not execute if market service)
Test program version No.
button.
(3) Sound Test
2000 Hz
(6) Flash R / W Test
OK!
MX1Z
31