Test Program - Yamaha CDR1000 Service Manual

TEST PROGRAM

1. Unless otherwise specified, use the following volume and switch settings.
REC LEVEL: Max.
PHONES LEVEL: Max.
GAIN SW: +4dB
Connect the following load resistance to each output terminal.
ANALOG OUT (L, R):
PHONES OUT:
Measuring instruments
Low frequency oscillator, AC voltmeter, Distortion meter, Oscilloscope, CD filter,
FOOT SW, A/D converter unit, D/A converter unit
N.B.: Unless otherwise specified, use 44.1 kHz sampling frequency for the A/D and D/A converter units.
Disk in use
Any music CD
Test CD: ALMEDIO TCD-78
CDRW: TDK CD-RW XA74
2. How to enter the Test Program
While pressing the [UTILITY] and [SYNC REC] buttons, turn on the power switch.
The display will appear as shown below.
DIAG VER0.16
When the display changes as shown below, the test mode will be set.
D0: DIAG IN
3. Proceeding through the Test Program
To select the test program number, use the [NEXT] and [PREV] buttons.
To start the test, press the [STOP] button.
There are 12 TEST programs, as listed below.
Test No. Description
D1 Fluorescent Display, LED
D2 Key Switch
D3 Remote Control
D4 PARALLEL I/O
D5 EEPROM Initialize
D6 ANALOG Input
D7 COAXIAL Input
D8 AES/EBU Input
D9 WORD CLOCK
D10 AES/EBU THRU
D11 DSP, DRAM
D12 SEARCH
D1 Fluorescent Display and LED
Selecting this program will cause the fluorescent display and LED to light up.
Check that the fluorescent display and all LEDs light up.
600 ohm
40 ohm
CDR1000
17