• If requiring information about the CD mechanism, see Service Manual of
BZG-5, (S/M Code No. 09-00C-353-3N2).
REVISION
S/M Code No. 09-017-445-3R1
DATA
SPECIFICATIONS
MAIN UNIT CX-NDS50 / CX-NDS55
TUNER
FM tuning range87.5 MHz to 108 MHz
FM usable sensitivity (IHF)13.2 dBf
FM antenna terminals75 ohms (unbalanced)
AM tuning range530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1602 kHz (9 kHz step)
AM usable sensitivity350 µV/m
AM antennaLoop antenna
AMPLIFIER
Power outputFront:
70 W + 70 W (50 Hz - 20 kHz,
THD less than 1 %, 6 ohms)
88 W + 88 W (1 kHz,
THD less than 10 %, 6 ohms)
Rear (Surround):
25 W + 25 W (1 kHz,
THD less than 1 %, 8 ohms)
35 W + 35 W (1 kHz,
THD less than 10 %, 8 ohms)
Center:
25 (1 kHz, THD less than 1 %, 8 ohms)
35 W (1 kHz, THD less than 10 %,
8 ohms)
DIGITAL IN (PCM/DOLBY DIGITAL)
OPTICAL (VIDEO/AUX/DVD): Linear
PCM signals (32 kHz, 44.1 kHz and
48 kHz) and Dolby Digital bitstream
OutputsFRONT SPEAKERS: 6 ohms or more
SURROUND SPEAKERS: 8 ohms to
16 ohms
CENTER SPEAKER: 8 ohms or more
SUB WOOFER: 1 V
PHONES: 32 ohms or more
GENERAL
Power requirements120 V AC, 60 Hz
Power consumption175 W
Power consumptionWith ECO mode on: 0.6 W
in standby modeWith ECO mode off: 35 W
Dimensions (W x H x D)260 x 326 x 340 mm
CD PLAYER
LaserSemiconductor laser (λ = 780 nm)
D/A converter1 bit dual
Signal-to-noise ratio85 dB (1 kHz, 0 dB)
Harmonic distortion0.05 % (1 kHz, 0 dB)
• Design and specifications are subject to change without notice.
• The word "BBE"and the "BBE symbol" are trademarks of BBE
Sound, Inc.
Under license from BBE Sound,Inc.
• Manufactured under license from Dolby Laboratories Licensing
Corporation.
“DOLBY”, the double-D symbol and "PRO LOGIC" are trademarks
of Dolby Laboratories Licensing Corporation.
– 2 –
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
This set employs laser. Therefore, be sure to follow carefully
the instructions below when servicing.
WARNING!!
WHEN SERVICING, DO NOT APPROACH THE LASER
EXIT WITH THE EYE TOO CLOSELY. IN CASE IT IS
NECESSARY TO CONFIRM LASER BEAM EMISSION.
BE SURE TO OBSERVE FROM A DISTANCE OF MORE
THAN 30cm FROM THE SURFACE OF THE OBJECTIVE LENS ON THE OPTICAL PICK-UP BLOCK.
s Caution: Invisible laser radiation when
open and interlocks defeated avoid
exposure to beam.
s Advarsel: Usynlig laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa
mainitulla tavalla saataa altistaa käyt-täjän
turvallisuusluokan 1 ylittävälle näkymättömälle
lasersäteilylle.
VARNING!
Om apparaten används på annat sätt än vad som
specificeras i denna bruksanvising, kan användaren
utsättas för osynling laserstrålning, som överskrider
gränsen för laserklass 1.
CAUTION
Use of controls or adjustments or performance of procedures other than those specified herin may result in
hazardous radiation exposure.
ATTENTION
L’utillisation de commandes, réglages ou procédures
autres que ceux spécifiés peut entraîner une dangereuse
exposition aux radiations.
ADVARSEL
Usynlig laserståling ved åbning, når sikkerhedsafbrydereer
ude af funktion. Undgå udsættelse for stråling.
This Compact Disc player is classified as a CLASS 1
LASER product.
The CLASS 1 LASER PRODUCT label is located on the
rear exterior.
CLASS 1LASER PRODUCT
KLASSE 1LASER PRODUKT
LUOKAN 1LASER LAITE
KLASS 1LASER APPARAT
Precaution to replace Optical block
(KSS-213F)
Body or clothes electrostatic potential could
ruin laser diode in the optical block. Be sure
ground body and workbench, and use care the
clothes do not touch the diode.
1) After the connection, remove solder shown in
right figure.
PICK-UP Assy PWB
Solder
– 3 –
NOTE ON BEFORE STARTING REPAIR
1. Forced discharge of electrolytic capacitor of power supply block
When repair is going to be attempted in the set that uses relay circuit in the power supply block, electric potential is kept charged across
the electrolytic capacitors (C101, 102) even though AC power cord is removed. If repair is attempted in this condition, secondary defect
can occur.
In order to prevent the secondary trouble, perform the following measures before starting repair work.
Discharge procedure
11
1 Remove the AC power cord.
11
22
2 Connect a discharging resistor at an end of lead wire that
22
has clips at both ends. Connect the other end of the lead
wire to metal chassis.
33
3 Contact the other end of the discharging resistor to the
33
positive (+) side (+VH) of C101. (For two seconds)
44
4 Contact the same end of the discharging resistor as step
44
33
3 to the negative (-) side (-VH) of C102 in the same way.
33
(For two seconds)
55
5 Check that voltage across C101 and C102 has decreased
55
to 1 V or less using a multimeter or an oscilloscope.
Select a discharging resistor referring to the following table.
Charging voltage (V)Discharging
(C101, 102)resistor (Ω)
25-48100387-A00-247-090
49-140220587-A00-232-090
Note: The reference numbers (C101, C102) of the electrolytic capacitors can change depending on the models. Be sure to check the
reference numbers of the charging capacitors on schematic diagram before starting the discharging work.
Rated power (W)Parts number
MAIN C.B
D101
3
C101C102
22
Fig-1
4
2. Check items before exchanging the MICROCOMPUTER
Be sure to check the following items before exchanging the MICROCOMPUTER. Exchange the MICROCOMPUTER after confirming
that the MICROCOMPUTER is surely defective.
2-1. Regarding the HOLD terminal of the MICROCOMPUTER
When the HOLD terminal (INPUT) of the MICROCOMPUTER is “H”, the MICROCOMPUTER is judged to be operating correctly.
When this terminal is “L”, the main power cannot be turned on. Therefore, be sure to check the terminal voltage of the HOLD
terminal before exchange.
When the MICROCOMPUTER is not defective, the HOLD terminal can also go “L” when the POWER AMPLIFIER has any
abnormalities that triggers the abnormality detection circuit on the MAIN C. B. that sets the HOLD terminal to “L”.
• Good or no good judgement of the MICROCOMPUTER
11
1 Turn on the AC main power.
11
22
2 Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the “H” level or not.
22
33
3 When the HOLD terminal is “L” level, the abnormality detection circuit is judged to be working correctly and the
33
MICROCOMPUTER is judged to be good.
– 4 –
In such a case, check also if the POWER AMPLIFIER circuit or power supply circuit has any abnormalities or not.
2-2. Regarding reset
There are cases that the machine does not work correctly because the MICROCOMPUTER is not reset even though the AC power
cord is re-inserted, or the software reset (pressing the STOP key + POWER key) is performed.
When the above described phenomenon occurs, it can lead to wrong judgement as if the MICROCOMPUTER is defective and to
exchange the MICROCOMPUTER. In such a case, perform the forced-reset by the following procedure and check good or no
good of the MICROCOMPUTER.
11
1 Remove the AC power cord.
11
FRONT C.B
18
MICROCOMPUTER
FRONT C.B
22
2 Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.
22
33
3 Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER is
33
good.
Note: The reference number or MICROCOMPUTER pin number of transistor (Q110) and electrolytic capacitor (C113) can change depending
on the models. Be sure to check the reference numbers on schematic diagram before starting the discharging work.
15
C113
Short with tweezers.
Fig-2-2
C113
%
*
VSS
VDD
MICROCOMPUTER
2-3. Confirmation of soldering state of MICROCOMPUTER
Check the soldering state of the MICROCOMPUTER in addition to the above described procedures. Be sure to exchange the
MICROCOMPUTER after surely confirming that the trouble is not caused by poor soldering but the MICROCOMPUTER itself.
C5 87-012-368-080 C-CAP,S 0.1-50 F
C6 87-012-368-080 C-CAP,S 0.1-50 F
C7 87-012-368-080 C-CAP,S 0.1-50 F
C8 87-012-368-080 C-CAP,S 0.1-50 F
C9 87-012-368-080 C-CAP,S 0.1-50 F
C10 87-012-368-080 C-CAP,S 0.1-50 F
C11 87-012-368-080 C-CAP,S 0.1-50 F
C12 87-012-368-080 C-CAP,S 0.1-50 F
C21 87-A12-780-090 CAP,E 4700-35 M 85 SKR
C22 87-A12-780-090 CAP,E 4700-35 M 85 SKR
C393 87-012-191-080 C-CAP,U 56P-50 J CH
C394 87-012-191-080 C-CAP,U 56P-50 J CH
C619 87-010-831-080 C-CAP,U,0.1-16F
C621 87-012-278-080 C-CAP, U 2200P-50 K B
C622 87-012-278-080 C-CAP, U 2200P-50 K B
C633 87-012-281-080 C-CAP,U 3900P-50 B
C634 87-016-369-080 C-CAP,S 0.033-25 B K
C635 87-012-281-080 C-CAP,U 3900P-50 B
C636 87-016-369-080 C-CAP,S 0.033-25 B K
C637 87-A12-088-080 CAP,E 2.2-50 SMG
C638 87-A12-088-080 CAP,E 2.2-50 SMG
C656 87-A10-260-080 C-CAP,U 0.1-16 K B
C675 87-012-282-080 CAP, U 4700P-50
C676 87-012-282-080 CAP, U 4700P-50
C683 87-A11-969-080 C-CAP,U 0.082U-16 K B
C115 87-012-284-080 CAP, U 6800P-50
C116 87-012-284-080 CAP, U 6800P-50
C117 87-012-277-080 C-CAP,U 1800P-50 CH
C118 87-012-277-080 C-CAP,U 1800P-50 CH
C119 87-012-282-080 CAP, U 4700P-50
C120 87-012-282-080 CAP, U 4700P-50
C121 87-012-277-080 C-CAP,U 1800P-50 CH
C122 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C123 87-A12-091-080 CAP,E 10-50 SMG
C124 87-A12-091-080 CAP,E 10-50 SMG
C125 87-A10-902-080 C-CAP,U 0.47-10 K B
C126 87-A12-091-080 CAP,E 10-50 SMG
C151 87-A12-091-080 CAP,E 10-50 SMG
C152 87-A12-091-080 CAP,E 10-50 SMG
C153 87-012-172-080 CAPACITOR CHIP U 10P CH
C154 87-012-172-080 CAPACITOR CHIP U 10P CH
C155 87-010-831-080 C-CAP,U,0.1-16F
C156 87-010-831-080 C-CAP,U,0.1-16F
C157 87-A10-902-080 C-CAP,U 0.47-10 K B
C161 87-012-268-080 C-CAP,U 330P-50 B
C162 87-012-268-080 C-CAP,U 330P-50 B
C163 87-010-831-080 C-CAP,U,0.1-16F
C164 87-010-831-080 C-CAP,U,0.1-16F
C165 87-012-284-080 CAP, U 6800P-50
C166 87-012-284-080 CAP, U 6800P-50
C167 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C168 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C169 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C170 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C171 87-012-282-080 CAP, U 4700P-50
C203 87-012-172-080 CAPACITOR CHIP U 10P CH
C204 87-012-274-080 CHIP CAP,U 1000P-50B
C205 87-010-831-080 C-CAP,U,0.1-16F
C206 87-010-831-080 C-CAP,U,0.1-16F
C207 87-A10-902-080 C-CAP,U 0.47-10 K B
C211 87-012-268-080 C-CAP,U 330P-50 B
C212 87-016-115-080 C-CAP,U 0.012-25 J B
C213 87-010-831-080 C-CAP,U,0.1-16F
C214 87-010-831-080 C-CAP,U,0.1-16F
C215 87-012-284-080 CAP, U 6800P-50
DESCRIPTIONREF. NO.KANRI
PART NO.
NO.
C216 87-A11-538-080 C-CAP,S 0.12-25 J B
C217 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C219 87-012-277-080 C-CAP,U 1800P-50 K B GRM
C221 87-012-282-080 CAP, U 4700P-50
C223 87-A12-091-080 CAP,E 10-50 SMG
C224 87-A12-091-080 CAP,E 10-50 SMG
C401 87-A10-260-080 C-CAP,U 0.1-16 K B
C404 87-A10-260-080 C-CAP,U 0.1-16 K B
C503 87-A12-088-080 CAP,E 2.2-50 SMG
C504 87-A12-088-080 CAP,E 2.2-50 SMG
C512 87-012-275-080 C-CAP,U 1200P-50
C513 87-A10-918-080 CAP,E 100-16 SMG
C551 87-A10-047-080 C-CAP,U 1-10 Z F
C552 87-A10-047-080 C-CAP,U 1-10 Z F
C553 87-010-831-080 C-CAP,U 0.1-16 Z F
C601 87-A12-091-080 CAP,E 10-50 SMG
C602 87-A10-260-080 C-CAP,U 0.1-16 K B
C603 87-A12-091-080 CAP,E 10-50 SMG
C604 87-A10-260-080 C-CAP,U 0.1-16 K B
C606 87-012-195-080 C-CAP,U 100P-50CH
C617 87-A12-087-080 CAP,E 1-50 SMG
C618 87-010-831-080 C-CAP,U,0.1-16F
C621 87-A12-091-080 CAP,E 10-50 SMG
C624 87-A10-260-080 C-CAP,U 0.1-16 K B
C651 87-016-251-080 CAP,E 220-16 M SMG
C300 87-012-278-080 C-CAP,U 2200P-50 B
C301 87-012-282-080 CAP, U 4700P-50
C714 87-012-286-080 CAP, U 0.01-25
CN102 87-A61-109-010 CONN,7P V TID-A
CN104 87-A60-060-010 CONN,07P V 9604S-07C
C1 87-A10-831-010 CAP,E 1000-25 M SMG
CN1 87-A61-110-010 CONN,9P V TID-A
!
PT1 8B-NCK-612-010 PT BNC-19 U
!
PT2 8B-MA6-671-010 PT,SUB BMA U (VRK)
!
RY2 87-A91-418-010 RELAY,AC12V G5PA-1-M
!
T1 87-A60-317-010 TERMINAL, 1P MSC
!
T2 87-A60-317-010 TERMINAL, 1P MSC
FAN C.B
C180 87-A12-087-080 CAP,E 1-50 SMG
C181 87-010-379-080 CAP,E 22-16 M 11L SME
C182 87-A12-071-080 CAP,E 47-25 SMG
CN181 87-009-030-010 CONN,2P V WHT PH
CN184 87-A60-688-010 CONN,4P H GRY TUC-P04X-C1
VM2 C.B
CNA004 8B-NCK-610-010 CONN ASSY,3P BNC-K
JACK C.B
C401 87-012-368-080 C-CAP,S 0.1-50 F
C402 87-012-368-080 C-CAP,S 0.1-50 F
C403 87-012-368-080 C-CAP,S 0.1-50 F
C404 87-012-368-080 C-CAP,S 0.1-50 F
C411 87-012-368-080 C-CAP,S 0.1-50 F
CN1 87-099-753-010 CONN,11P H 9604
CNA351 86-ZM3-605-110 CONN ASSY,8P-RPB
SFR1 87-024-581-010 SFR,3.3K H KVSF637A
SOL1 82-ZM3-627-010 SOL ASSY,27 SO
SOL2 82-ZM3-627-010 SOL ASSY,27 SO