TEST PROGRAM
CVP-105
25
1. Preparation
To check the unit using the test program, the following measuring instruments and jigs are required:
Level meter (IHF-C curve)
Frequency counter
Note: Impedance must be 1 M
Ω
or above.
Use stereo plugs, and connect a 33
Ω
load at the [PHONES] terminal.
Floppy disks (2HD and 2DD)
Foot controller (FC-7)
Unit settings:
MASTER VOLUME:
Maximum
Tone:
PIANO
Pedal:
OFF
Reverb:
OFF
Terminals:
Not connected if not specified
2. How to enter the Test Program
While pressing the [C2#], [F2] and [G2#] keys, turn on the power switch.
3. Proceeding through the Test Program
Once inside the test program, the LCD will display “TEST MODE”.
To select the program number, use the [Tempo +] and the [Tempo -] buttons.
To start the test, press the [Start/Stop] button.
When the test result is ok, the LCD will display “OK”.
When the test result is no good, turn off the power swich and re-enter the test program.
Test Items
1
2
3
4
7
9
11
12
13
14
No.
LCD for Each Test
Test Functions and Judgment Criteria
001: Version
002: ROM Check1
003: RAM Check1
004: Wave ROM Check1
007: FDD Check
009: Effect1 RAM Check
011: TG1 Check
012: TG2 Check
013: Pitch Check
014: Output R
Displays ROM version (MAIN, WAVE, SCAN, STYLE)
Checks the Program ROM and Data ROM
Checks all RAMs that are connected to the CPU
Checks the wave ROM
Insert the floppy disks one by one (2DD and 2HD).
Checks the floppy disk drive unit
Checks the Reverb effect RAM
Check that the C3 note is output and that there is no noise.
Produces the sine wave sequence by changing the channels (1ch – 32ch) in
order from A0 to C6.
The guide lamps will light according to the sound.
When a voice switch is pressed, the tone of the voice will sound. After
autoscaling is finished, individual keys can be played. (If playing two or
more keys simultaneously, the key pressed first has priority to make a sound.)
Produces the sine wave sequence by changing the channels (33ch – 64ch) in
order from A0 to C6.
The guide lamps will light according to the sound.
When a voice switch is pressed, the tone of the voice will sound. After
autoscaling is finished, individual keys can be played. (If playing two or
more keys simultaneously, the key pressed first has priority to make a sound.)
Connect the frequency counter to the PHONES jacks.
Check the output level (440 Hz).
Check the output level (1 kHz).
AUX OUT L:
Less than -35 dBm (-12 dBm +/-2 dB)
AUX OUT R: -7 dBm +/-2 dB
When the stereo plug is connected, check that the following output levels are shown:
PHONES L:
Less than -35 dBm
PHONES R:
-16 dBm +/-2 dB
