Yamaha CDR-HD1000 Service Manual page 11

QQ
3 7 63 1515 0
Step Item
2 D/A converter
Step
Item
TE
L 13942296513
3
A/D converter
Signal generator
www
1kHz/20Hz/20kHz
.
http://www.xiaoyu163.com
Mode
Normal mode
CDR-HD1000
LINE OUT
(ANALOG)
YEDS-18
Track 2 (1kHz, 0dB)
Track 3 (20Hz, 0dB)
Track 6 (20kHz, 0dB)
Track 7 (Infinity Zero)
Mode
DAC mode LINE IN (ANALOG)
1kHz, 20Hz, 20kHz
CDR-HD1000
500mVrms
LINE IN
DIGITAL OUT
(ANALOG)
(COAXIAL)
x ao u163
y
i
Level meter
http://www.xiaoyu163.com
2 9
8
Input signal
Disc
YEDS-18
Oscilloscope
Level meter
Distortion meter
Input signal
Disc
Q Q
3 6 7 1 3
No disc
500mVrms
10. Press the "
AV amplifier
DIGITAL IN
(COAXIAL)
.
9 4 2 8
Check method and standard
1. Turn on the power. (In normal mode)
2. Load the CD test disc (YEDS-18: TX911730).
3. Play track 2 (1kHz, 0dB).
4. Check that the output level of LINE OUT (ANA-
LOG) is 2 ± 0.5Vrms.
5. Check that the distortion factor (1kHz) is 0.01%
or less.
6. Play tracks 3 (20Hz) and 6 (20kHz) and check
that the frequency response is 0 ± 1.5dB.
7. Play track 7 and check that S/N is 100dB or
more.
Check method and standard
1 5 0 5 8 2 9 9 4
1. Press the "MENU" key.
Rotate 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.
" key to return to the normal
mode.
m
Oscilloscope
PRE OUT
Level meter
co
Distortion meter
CDR-HD1000
9 9
2 8 9 9
10