Yamaha CDR-HD1500 Service Manual page 22

CDR-HD1500
Step
Item
3
A/D converter
Signal generator
500mVrms
1kHz/20Hz/20kHz
Step
Item
4 Copying
CD HDD
22
Mode Input signal
DAC mode LINE IN (ANALOG)
1kHz, 20Hz, 20kHz
500mVrms
CDR-HD1500
LINE IN
DIGITAL OUT
(ANALOG)
(COAXIAL)
Level meter
Mode Input signal
Normal mode
Check method and standard
Disc
1. Press the "MENU" key.
No disc
Turn the "MULTI JOG" knob to select
"DAC mode" then press the "MULTI JOG"
knob.
2. Set the INPUT selector to the ANALOG posi-
tion.
3. Apply a 1kHz, 500mVrms analog signal to the
LINE IN (ANALOG).
4. Demodulate the digital signal of DIGITAL OUT
(COAXIAL) to analog.
5. Adjusting the ANALOG REC LEVEL control
knob, check that the demodulated signal
level can be set to 1Vrms.
6. At this time, check that the REC LEVEL con-
trol knob is close to the 12 o'clock position.
7. Check that the distortion factor is 0.02% or less.
8. Check that the S/N is 82dB or more. (Input
shorted, REC LEVEL max.)
9. Check that the frequency response (at 20Hz
and 20kHz) is 0 ± 1.5dB.
10. Press the " " key to return to the normal
mode.
AV amplifier
DIGITAL IN
PRE OUT
(COAXIAL)
Check method and standard
Disc
1. Load a CD on the tray and close the tray.
CD
2. Press the "COPY" key once to go to COPY
Standby mode, blue LED of CDR and
orange LED of HDD begin to blink slowly.
3. Press the "
4. Press the " " key to stop copying.
Recommended recording time is over 1 track
time.
5. Press the "HDD" key to select HDD.
6. Press the "
recorded track and confirm it recorded
correctly.
7. Press the " " key, remove the disc and close
the tray.
8. Check the disc and track numbers with
recorded contents for testing.
9. Press the "HDD" key to select HDD.
10. Press the "MENU" key and turn the "MULTI
JOG" knob to select "Disc Edit" and then
press the "MULTI JOG" knob.
11. Turn the "MULTI JOG" knob to select "Disc
Erase" and then press the "MULTI JOG"
knob.
12. Select the disc No. with recorded contents
for testing by turning the "MULTI JOG" knob
and press it.
13. Press the "COMPLETE" key to erase the
selected disc.
14. If there are more than one discs with
recorded contents for testing, repeat Steps
11, 12 and 13.
* If it is allowed to format HDD, execute
formatting instead of performing Steps 8 and
after.
Oscilloscope
Level meter
Distortion meter
" key to start copying.
" key to play back the