Diagnostic Program - Casio PX-410R Service Manual

I Initial Setting
1. Connect the AC adaptor.
2. Connect the Pedal.
3. "Main" volume: MAX
4. "Mic" volume: MAX
I How to start diagnostic program
1. Press and hold "UPPER" and "DOWN" buttons.
2. "POWER" switch
* The massage "TEST_421" is appears LCD.
3. Release "UPPER" and "DOWN" buttons.
I Diagnostic program
1. CPU RAM check
1 Press "SYNCRO" button.
2. DSP RAM check
1 Press "VARIATION/FILL-IN2" button.
3. ROM check
1 Press "INTRO/ENDING1" button.
* It takes about 10 minutes until ROM CHECK SUM is displayed.
4. SR ROM Version check
1 Press "AUTO HARMONIZE" button.
* The RON Version appears on the LCD.
5. ZX ROM1 Version check
1 Press "SPLIT" button.
* The RON Version appears on the LCD.
6. ZX ROM2 Version check
1 Press "LAYER" button.
* The RON Version appears on the LCD.
7. FLASH MEMORY check
1 Press "INTRO/ENDING2" button.
* It takes about 5 minutes until ROM CHECK SUM is displayed.
8. FLASH MEMORY READ SUM check
1 Press "SONG" button.

DIAGNOSTIC PROGRAM

"ON"
— 17 —
Message on LCD
CRAM_OK
DRAM_OK
ROM_OK
FMC_OK
FMC_7A2B