NAD C521BEE Service Manual

Cover page of NAD C521BEE Service Manual

Service Manual for NAD C521BEE, downloadable as a PDF file.

We also have owner's manual to this model.

Manual details

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  • The manual has 34 pages
  • File size: 2.22 MB
  • Available language versions: English
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Sample pages

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NAD
C 521BEE
COMPACT
DISC PLAYER
C
521BEE
COMP
ACT
DISC
PLA
YER
SER
VICE
MANUAL
background image
NAD
C 521BEE
COMPACT
DISC PLAYER
C
521BEE
COMP
ACT
DISC
PLA
YER
SER
VICE
MANUAL
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- 2 -
CATUION
HGKJDHSGKJHGSJK
ADVARSEL
HGKJDHSGKJHGS
KBVNCLKNBCVLKNLKNVLKNCVNCL
VK JK
ADVARSEL
HGKLFH;L;HJMNM
D
HFKLJHJLDKLJLKDJLKFHJHSGMMKJHGSJK
VARING
HGK
JDHSGKJHGKLGDJH
KLHKFG;LKNG
;LKJGF;LKJGF;LKJFL;SJK
VARO!
HGKJDHSGKJHJBJKBKJBJKGS
KBVNCLKNBCVLKNLKNVLKNCVNC
LVK J
K
VORSICT!
HGKLFH;L;HHBHHJD
JHFKLJHJLDKLJLKDJLKFHJHSGKJHG
SJK
SAFETY INFORMATION
CAUTION
CAUTION - INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED.AVOID EXPOSURE TO BEAM.
ADVARSEL - USYNLIG LASERSTRÅLING NÅR DEKSELÅPNES OG
SIKKERHEDSLÅS BRYTES. UNNGÅ EKSPONERING FOR STRÅLEN.
ADVARSEL- USYNLIG LASERSTRÅLINGVED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDEAF FUNKTION. UNDGÅ
UDSÆTTELSE FOR STRÅLING.
VARING - OSYNLING LASERSTRÅLNING NÄR DENNADELÄR
ÖPPNAD OCH SPÄRRAR ÄR URKOPPLADE. STRÅLEN ÄR FARLIG.
VARO! -AVATTAESSAJASUOJALUKITUS OHITETTAESSAOLET
ALTTIINANÄKTMÄTÖNTÄ LASERSÄTEILYLLE. ÄLÄ KAISO
SÄTEESEEN.
VORSICT!- UNSICHTBARE LASERSTRAHLUNG TRITTAUS,WENN
DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT DEM STRAHLAUSSETZEN.
THIS DEVICE COMPLIES WITH PART 15 OF THE FCC RULES.
OPERATION IS SUBJECT TO THE FOLLOWING TWO CONDITIONS:-
(1) THIS DEVICE MAY NOT CAUSE HARMFUL INTERFERENCE, AND
(2) THIS DEVICE MUST ACCEPT ANY INTERFERENCE RECEIVED,
INCLUDING INTERFERENCE THAT MAY CAUSE UNDESIRED
OPERATION.
The lightning flash with arrowhead, within an equilateral tri-
angle is intended to alert the user of the presence of
uninsulated "dangerous voltage" within the product's
enclosure; that may be of sufficient magnitude to consti-
tute a risk of electric shock to persons.
The exclamation point within an equilateral triangle is intend-
ed to alert the user of the presence of important operating
and maintenance (servicing) instructions in the literature
accompanying the appliance.
CLASS 1
LASER PRODUCT
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- 3 -
SERVICE SAFETY PRECAUTIONS
1.
Replacing the fuses
CAUTION: FOR CONTINUED PROTECTION AGAINST THE RISK OF FIRE REPLACE ONLY WITH SAME TYPE
OF FUSE.
Reference No
Part Number
Description
M502-M504
*AH
5120-0020-0
FU T1A 250V UL/CSA 5x20MM
M502-M504
*C
5120-0018-0
FU T1A 250V SEMKO/UDE 5x20MM
M505
*AH
5120-0052-0
FUSE T1.6A 250V 5x20MM UL/CSA
M505
*C
5120-0050-0
FUSE T1.6A 250V 5x20MM SEMKO/VDE
NOTE:
<*AH > : USA, CANADIAN MODEL ONLY.
<*C > : EUROPEAN MODEL ONLY.
2.
Safety check out
(Only U.S.A. model)
Before returning the product to the customer, make leakage current or resistance measurements to determine that
exposed parts are acceptably insulated from the supply circuit.
Parts marked with the symbol
are critical with regard to the risk of fire and electric shock.
Replace only with parts recommended by the manufacturer.
CONTENTS
DESCRIPTION
PAGE
SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
REAR PANEL / FRONT PANEL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
DISASSEMBLY INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
WIRING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
RF PATTERN TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9
IMPORTANT NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10-11
PCB LAYOUT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12-13
SCHEMATIC DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-17
IC BLOCK DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18-21
TROUBLESHOOTING GUIDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23-27
MECHANISM EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28
MECHANISM EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29
EXPLODED VIEW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
EXPLODED VIEW PARTS LIST . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31-33
PACKING DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
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- 4 -
SPECIFICATIONS
Disc Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . One Disc, 120 or 80 mm
Decoding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . BURR-BROWN Delta Sigma 20bit
Digital Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 Times oversample
Analog Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 pole active
Frequency Response . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 0.5 dB, 5Hz - 20kHz
De-Emphasis Error . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 0.3 dB
THD (at 0 dB, 1kHz) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.003%
Intermodulation Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . < - 100 dB
(19 + 20 kHz)
Dynamic Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 dB
Linearity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +/- 0.5 dB, 0 dB to -80 dB
Signal / Noise Ratio (A-Weight) . . . . . . . . . . . . . . . . . . . . . . . 106 dB, De-Emphasis on
106 dB, De-Emphasis off
Channel Separation 1kHz . . . . . . . . . . . . . . . . . . . . . . . . . . >90 dB
10 kHz . . . . . . . . . . . . . . . . . . . . . . . . >80 dB
Wow and Flutter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unmeasurable (Quartz Crystal Accuracy)
Output Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 200
Output Level at 0 dB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 V rms
Digital Error Correction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . IRC with double error correction in C1 and C2
Digital Code Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Sony / Philips Serial data format
Power Consumption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12W
CONTROLS
Play / Pause, Stop, Random, Skip (< >), Scan (< >), Open, Time, Repeat.
PHYSICAL SPECIFICATIONS
Dimensions
435 x 80 x 285 mm
(Width x Height x Depth)
Net weight
4 kg (8.8 lbs)
Shipping weight
5.1 kg (11.22 lbs)
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- 5 -
1.
LINE OUT
2.
DIGITAL OUT
3.
AC LINE CORD
1.
POWER ON / OFF
2.
DISC DRAWER
3.
DISPLAY
4.
OPEN
5.
PLAY / PAUSE
6.
TIME
7.
STOP
8.
REPEAT
9.
RANDOM
10. SCAN Back (
) / Forward (
)
11. SKIP Back (
) / Forward (
)
12. STANDBY LED
REAR PANEL / FRONT PANEL
REAR PANEL
FRONT PANEL

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