BASIC TAPE MECHANISM : 6ZM-3 PR2NM
BASIC CD MECHANISM : AZG-1 ZA3RDM
S/M Code No. 09-004-424-6N6
· If requiring information about the CD mechanism, see Service Manual of AZG-1,
(S/M Code No. 09-001-335-3NC).
Main unit CX-NSZ40, CX-NSZ42
FM tuner section
87.5 MHz to 108 MHz
Usable sensitivity (IHF)
75 ohms (unbalanced)
AM (MW) tuner section
531 kHz to 1602 kHz (9 kHz step)
530 kHz to 1710 kHz (10 kHz step)
LW tuner section
144 kHz to 290 kHz
Rated: 80 W + 80 W (6 ohms,
T.H.D. 1 %, 1 kHz/DIN 45500)
Reference: 100 W +100 W (6 ohms,
T.H.D. 10 %, 1 kHz/DIN 45324)
DIN MUSIC POWER:
200 W + 200 W
Total harmonic distortion
0.1 % (45 W, 1 kHz, 6 ohms, DIN
VIDEO/AUX: 500 mV
accept speakers of 6 ohms or more
accept speakers of 8 ohms to 16
PHONES (stereo jack): accepts
headphones of 32 ohms or more
Cassette deck section
4 tracks, 2 channels stereo
50 Hz 15000 Hz
Deck 1: Playback head x 1
Deck 2: Recording/playback head
x 1, erase head x 1
Compact disc player section
Semiconductor laser (
= 780 nm)
1 bit dual
85 dB (1 kHz, 0 dB)
0.05 % (1 kHz, 0 dB)
Wow and flutter
230 V AC, 50 Hz
Power consumption in standby mode
If the power-economizing mode is
ECO OFF: 20 W
If the power-economizing mode is
ECO ON or ECO AUTO: 0.9 W
Dimensions of main unit
260 x 326 x 345 mm
(W x H x D)
Weight of main unit
Speaker system SX-NSZ51, SX-NSZ53
3 way, Bass reflex (magnetic
Woofer: 140 mm cone type
Tweeter: 60 mm cone type
Super tweeter: 20 mm ceramic type
Dimensions (W x H x D)
240 x 324 x 270 mm
· Design and specifications are subject to change without notice.
· The word "BBE" and the "BBE symbol" are trademarks of BBE
· Under license from BBE Sound, Inc.
ANT,LOOP ANT NC2
PROTECTION OF EYES FROM LASER BEAM DURING SERVICING
Laiteen K ytt minen muulla kuin t ss k ytt ohjeessa mainit-
ulla tavalla saattaa altistaa k yt-t j n turvallisuusluokan 1 ylit-
t v lle n kym tt m lle lasers teilylle.
Om apparaten anv nds p annat s tt n vad som specificeras i
denna bruksanvising, kan anv ndaren uts ttas f r osynling
laserstr lning, som verskrider gr nsen f r laserklass 1.
Caution: Invisible laser radiation when
open and interlocks defeated avoid expo-
sure to beam.
Advarsel:Usynling laserst ling ved bning,
n r sikkerhedsafbrydere er ude af funktion.
Undg uds ttelse for str ling.
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous
L'utilisation de commandes, r glages ou proc dures autres que
ceux sp cifi s peut entra ner une dangereuse exposition aux
Usynlig laserst ling ved bning, n r sikkerhedsafbrydereer ude
af funktion. Undg uds ttelse for str ling.
This Compact Disc player is classified as a CLASS 1 LASER
The CLASS 1 LASER PRODUCT label is located on the rear
This set employs laser. Therefore, be sure to follow carefully the
instructions below when servicing.
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
Precaution to replace Optical block
1) After the connection, remove solder shown in
the figure below.
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.
ZA3/ZA4 (KSS-213F) MODEL
NOTE ON BEFORE STARTING REPAIR
Charging voltage (V)
Rated power (W)
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.
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
Turn on the AC main power.
Confirm that the main power is turned on and the HOLD terminal of the MICROCOMPUTER keeps the "H" level or not.
When the HOLD terminal is "L" level, the abnormality detection circuit is judged to be working correctly and the
MICROCOMPUTER is judged to be good.
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
In order to prevent the secondary trouble, perform the following measures before starting repair work.
Remove the AC power cord.
Connect a discharging resistor at an end of lead wire that
has clips at both ends. Connect the other end of the lead
wire to metal chassis.
Contact the other end of the discharging resistor to the
positive (+) side (+VH) of C101. (For two seconds)
Contact the same end of the discharging resistor as step 3
to the negative (-) side (-VH) of C102 in the same way.
(For two seconds)
Check that voltage across C101 and C102 has decreased
to 1 V or less using a multimeter or an oscilloscope.
Select a discharging resistor referring to the following table.
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.
1 Remove the AC power cord.
Short both ends of the electrolytic capacitor C113 that is connected to VDD of the MICROCOMPUTER with tweezers.
Connect the AC power cord again. If the MICROCOMPUTER returns to the normal operation, the MICROCOMPUTER is
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.
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.
Short with tweezers.