Test Program; How To Enter The Test Program; Proceeding Through The Test Program; Test Program List - Yamaha CLP-150 Service Manual

CLP-150/CLP-150M/CLP-150C

TEST PROGRAM

1. Preparation
1) Measuring instruments: Frequency counter, level meter (with JIS-C filter)
Note) [PHONES] jack: 33Ω load, [AUX OUT] jack: 10kΩ load
2) Jigs: Foot volume (FC-7), MIDI cable
2.

How to enter the Test Program

While pressing the [C#2], [F2] and [G#2] keys, turn on the [POWER] switch.
3.

Proceeding through the Test Program

When the test program is activated, the sign "TEST CLP 150" appears on the
LCD display.
Select the test program item by pressing the [UP] or [DOWN] button of [TEMPO].
Press the [START/STOP] button of [METRONOME] to execute testing.
When the test result is OK, press the [START/STOP] button of [METRONOME] to return to the screen of test items for
selection. Select the next test item by pressing the [UP] or [DOWN] button of [TEMPO]. When the test result is OK, an
asterisk (*) is added in front of its item name on display.
When the test result is NG, press the [DEMO] button to return to the screen of test items for selection and then turn off the
[POWER] switch to end the test program.
4.

Test program list

No. LCD
1 001: Main Version
2 002: Wave Version
3 003: Main Rom Chk1
4 004: Main Ram Chk1
5 005: FlashRom Chk1
6 006: WaveRom Chk1
8 008: EffectRam Chk
9 009: TG Chk
10 010: Pitch Chk
38
Function and judgment criteria
Displays the Main ROM version.
The ROM (Program) version is displayed.
Displays the Wave ROM version.
The Wave ROM version is displayed.
Checks ROMs that are connected to the CPU bus.
Outputs the C4 sine wave when the check result is OK and "Main Rom Chk1 OK" is displayed on
the LCD display.
Checks RAMs that are connected to the CPU bus.
Outputs the C4 sine wave when the check result is OK and "Main Ram Chk1 OK" is displayed on the
LCD display.
Checks Flash Memories that are connected to the CPU bus.
Outputs the C4 sine wave when the check result is OK and "Flash Chk1 OK" is displayed on the
LCD display.
Checks Wave ROMs.
Outputs the C4 sine wave when the check result is OK and "WaveRom Chk1 OK" is displayed on the
LCD display.
Checks the effect RAM.
Outputs the sine wave (C4) when the check result is OK and displays "effectRam Chk OK" is displayed
on the LCD display.
Checks the Sound Source (Autoscale).
Sequentially outputs the sine wave by changing the tone of the sound source from the low keys (from
C2 to G4). Check by hearing that the produced sound is free from noise and abnormal sound.
Checks the pitch.
Connect the frequency counter to the [PHONES] jack.
Outputs the sine wave at 440.5 ± 0.2Hz (PAN = Center) when the test is executed.
Connect the level meter (with a JIS-C filter) to the [PHONES] jack.
Set the [MASTER VOLUME] at the MIN. position and check the output level.
PHONES L, R: -90.0dBm or less