DU1A
54
V 01.21 020405
Read Test
TEST : V 01.30 010601
OK !
OK !
OK !
OK !
OK !
OK !
OK !
Read Test
L: COS, R: SIN 1,760 Hz
DSP SHEET TEST
1
2
3
4
5
6
• DSP sheet program and test program version No. display
• DSP sheet RAM test (There is no memory to clear.)
• DSP sheet Flash Memory Write/Read test (There is no memory to clear.)
• DSP sheet Flash Memory Read test
• DSP sheet A/D, D/A converter, operational amplifier IC test
• Connect the test cable to the [CD CONTROL] terminal to perform the test.
(Refer to the following diagram.)
• DSP sheet ~ CONTROL (CTRL) sheet communication test
(There is the same test for communication from the CONTROL (CTRL) sheet.)
• CD Read test using the test CD (Not used in the field.)
• Test tone playback test. Check the headphone playback sound without the speakers.
Use the [-/NO], [+/YES] buttons to change the frequency. 110/440/1760/7040 Hz
Make sure there is no playback sound distortion.
Connect the MINI DIN 6P plug to the [CD CONTROL]
terminal according to the diagram, and test.
Wire between the 1-5-4 pins.
Wire between the 2-6-3 pins.
Digital I/O Test Cable Wiring Diagram