Yamaha Clavinova CVP-205 Service Manual page 52

No. LCD (initial)
42 042: MIC Check
43 043: ROM Check2
44 044: RAM Check2
45 045: Flash Check2
46 046: Wave ROM Check2
47 047: Wave RAM Check2
48 048: VIDEO OUT NTSC RED
(J and U models only)
49 049: VIDEO OUT NTSC GREEN
(J and U models only)
50 050: VIDEO OUT NTSC BLUE
(J and U models only)
51 051: VIDEO OUT PAL RED
(B, E, N models only)
52 052: VIDEO OUT PAL GREEN
(B, E, N models only)
53 053: VIDEO OUT PAL BLUE
(B, E, N models only)
55 055: Factory Set
56 056: Test Exit
Note: 0 dBm=0.775 V
Time is required to complete the checks performed by test No. 43–47.
• Power On Reset
The System Backup is initialized and set to the factory preset data when the [POWER ON/OFF] switch is turned on while pressing the
highest (rightmost) white key on the keyboard.
Test Function and Judgment criteria
Connect a microphone to the [MIC./LINE IN] jack and speak to it.
Set the [MIC./LINE] select switch to [MIC.] and set the [INPUT VOLUME] at maximum.
Check the voice sound by hearing that there is not unusual noise or abnormal sound.
Checks the ROMs that are connected to the CPU bus.
Check the LCD "ROM Check2 OK"
Checks the RAMs that are connected to the CPU bus.
Check the LCD "RAM Check2 OK"
Checks the Flash Memories that are connected to the CPU bus.
Check the LCD "Flash Check2 OK"
Checks the Wave ROMs.
Check the LCD "XG Wave ROM Check OK"
Checks the Wave RAMs.
Check the LCD "XG Wave RAM Check OK" "Natural Wave RAM1 Check OK"
Checks the NTSC red signal of "VIDEO OUT".
Connect the TV to the [VIDEO OUT] jack and check that TV characters become red.
Checks the NTSC green signal of "VIDEO OUT".
Connect the TV to the [VIDEO OUT] jack and check that TV characters become green.
Checks the NTSC blue signal of "VIDEO OUT".
Connect the TV to the [VIDEO OUT] jack and check that TV characters become blue.
Checks the PAL red signal of "VIDEO OUT".
Connect the TV to the [VIDEO OUT] jack and check that TV characters become red.
Checks the PAL green signal of "VIDEO OUT".
Connect the TV to the [VIDEO OUT] jack and check that TV characters become green.
Checks the PAL blue signal of "VIDEO OUT".
Connect the TV to the [VIDEO OUT] jack and check that TV characters become blue.
If this test is executed, the Flash ROMs will be initialized when the power is turned on in the next time.
Exit from the test program after executing this test.
CVP-205/CVP-205M
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