Yamaha Clavinova CLP-110 Service Manual page 24

CLP-110
I INSPECTION
1. Preparation
• To check the unit, following jigs are required.
Level meter (with JIS-C Filter)
Frequency counter
Foot Pedal
MIDI cable
• Set each control as follows.
MASTER VOLUME: Max
PEDAL:
Except above:
Connect the mesurement plug to the HEADPHONES jack. (33 )
2. To enter test program
Turn on the power with C2# , F2 , G2# keys pressed and held. (Fig.1)
When the test program starts to run, sine wave of A3 sounds. Press any key to stop the sound.
3. To proceed the test
See the table 1 for each test item.
Press the corresponding key to select and execute each test.
Table 1 Test Items
No. Key
1 C1-A1, C2-A2
2 C3
3 C3#
11 D3
13 D3#
14 E3
15 F3
16 F3#
24
OFF
Default state of startup
Item
ROM Version Confirm that the sine wave of C4 sounds.
C1-A1 :integer (0-9)
C2-A2 :decimal (0-9)
ROM 1 Confirm that the sine wave of C4 sounds.
RAM 1 Confirm that the sine wave of C4 sounds.
Tone Generator The sine waves from F3 to C6 automatically sounds in sequence.
Confirm that no abnomal sound or noise is generated.
Pitch Confirm that the sine wave of 440.0±0.2 Hz sounds.
OUTPUT The sine wave of C5 sounds.
LEVEL R Confirm that the output level of each jack is as follows. (Unit [dBm])
PHONES L
PHONES R
OUTPUT The sine wave of C5 sounds.
LEVEL L Confirm that the output level of each jack is as follows. (Unit [dBm])
PHONES L
PHONES R
EQ Low The sine wave of C1 sounds.
Confirm that the output level of each jack is as follows. (Unit [dBm])
PHONES L, R
Test Function and Judgment criteria
<example>
R - 40 or less
-3.0
-1.5
L - 40 or less
+4.0
(Fig.1)
ver. 1.0=[C1#,C2]