• If requiring information about the CD mechanism, see Service Manual
of AZG-1 ZD8RNDM, (S/M Code No. 09-001-335-3N6) and
AZG-1 ZD8RNDC, (S/M Code No. 09-001-335-3NA).
<Compact disc player section>
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)
<Speaker system SX-NAJ12>
Speaker System2 way, bass reflex (magnetic
shielded type)
Speaker unitsWoofer:
120 mm cone type
Tweeter:
20mm ceramic type
Impedance6 ohms
Sensitivity86 dB/W/m
Dimensions (W x H x D)220 x 324 x 235 mm
Weight2.0 kg
<General>
Power requirements120 V AC, 60 Hz
Power consumption38 W
Power consumptionWith power-economizing
in standby modemode off : 8.0 W
With power-economizing
mode on : 0.9 W
Dimensions of main unit260 x 324 x 346 mm
(W x H x D)
Weight of main unit5.7 kg
• Design and specifications are subject to change without notice.
– 2 –
Page 3
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.
Caution: Invisible laser radiation when
open and interlocks defeated avoid exposure to beam.
Advarsel:Usynling laserståling ved åbning,
når sikkerhedsafbrydere er ude af funktion.
Undgå udsættelse for stråling.
VAROITUS!
Laiteen Käyttäminen muulla kuin tässä käyttöohjeessa mainitulla tavalla saattaa 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 herein may result in hazardous
radiation exposure.
ATTENTION
L'utilisation 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 1
KLASSE 1
LUOKAN 1
KLASS 1
LASER PRODUCT
LASER PRODUKT
LASER LAITE
LASER APPARAT
Precaution to replace Optical block
(KSM-880CAB)
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
the right figure.
PICK-UP Assy P.C.B
solder
– 3 –
Page 4
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 –
Page 5
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
15
C113
C113
%
*
VSS
VDD
MICROCOMPUTER
FRONT C.B
Short with tweezers.
Fig-2-2
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.
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.
C300 87-018-195-080 CAP TC-U 1200P
C301 87-010-179-080 CAP,CHIP S B1200P
C302 87-010-179-080 CAP,CHIP S B1200P
C303 87-010-178-080 CHIP CAP 1000P
C304 87-010-178-080 CHIP CAP 1000P
C993 87-010-178-080 CHIP CAP 1000P
C995 87-010-178-080 CHIP CAP 1000P
C997 87-010-196-080 CHIP CAPACITOR,0.1-25
C999 87-A11-155-080 CAP,TC U 0.01-16 Z F
CF831 87-008-261-010 FILTER, SFE10.7MA5-A
Method : Play back the test tape and check that the output
level of the test point is 110mV ± 3.5dB.
12. REC/PB Frequency Response Check (DECK 1)
Settings : • Test tape : TTA–602
• Test point : TP8(Lch), TP9(Rch)
• Input signal : 1kHz / 8kHz (LINE IN)
Method : Apply a 1kHz signal and REC mode. Then adjust
OSC attenuator so that the output level at the test
points becomes -20VU. Record and play back the
1kHz and 8kHz signals and check that the output of
the 8kHz signals is 0dB ± 5dB with respect to that of
the 1kHz signal.
A 87-067-703-010 TAPPING SCREW, BVT2+3-10
B 87-067-581-010 TAPPING SCREW, BVT2+3-15
C 87-NF4-224-010 S-SCREW,IT3B+3-8 CU
D 87-067-688-010 BVTT+3-6
E 87-078-191-010 S-SCREW,IT+4-10
F 87-721-097-410 QT2+3-12 GLD
G 87-067-641-010 UTT2+3-8(W/O SLOT)BL
H 87-723-096-410 QT2+3-10W/O SLOT BL<HA,LH>
I 87-067-579-010 TAPPING SCREW, BVT2+3-8
J 87-721-096-410 QT2+3-10 W/O SLOT
NO.
DESCRIPTIONREF. NO.KANRI
COLOR NAME TABLE
Basic color symbolColorBasic color symbolColorBasic color symbolColor
BBlackCCreamDOrange
GGreenHGrayLBlue
LTTransparent BlueNGoldPPink
RRedSSilverSTTitan Silver
TBrownVVioletWWhite
WTTransparent WhiteYYellowYTTransparent Yellow
LMMetallic BlueLLLight BlueGTTransparent Green
LDDark BlueDTTransparent OrangeGMMetallic Green
61 8Z-ZM1-241-010 SPR-T,PLAY
62 8Z-ZM2-601-010 CONN ASSY,9P ZZM-2
A 84-ZM2-242-010 S-SCREW,AZ1-2-6.4
B 8Z-ZM2-220-110 V+2.6 ZZM-2
DESCRIPTIONREF. NO.KANRI
– 32 –
Page 33
SPEAKER DISASSEMBLY INSTRUCTIONS
Type.1
Insert a flat-bladed screwdriver into the position indicated by the
arrows and remove the panel. Remove the screws of each speaker
unit and then remove the speaker units.
Type.2
Remove the grill frame and four pieces of rubber caps by pulling
out with a flat-bladed screwdriver. Remove the screws from hole
where installed rubber caps. Insert a flat-bladed screwdriver into
the position indicated by the arrows and remove the panel. Remove the screws of each speaker unit and then remove the speaker
units.
Type.4
TOOLS
1 Plastic head hammer
2 (() flat head screwdriver
3 Cut chisel
12 3
How to Remove the PANEL, FR
1. Insert the (() flat head screwdriver tip into the gap
between the PANEL, FR and the PANEL, SPKR. Tap the
head of the (() flat head screwdriver with the plastic
hammer head, and create the clearance as shown in Fig-1.
2. Insert the cut chisel in the clearance, and tap the head of
the cut chisel with plastic hammer as shown in Fig-2, to
remove the PANEL, FR.
Type.3
Insert a flat-bladed screwdriver into the position indicated by the
arrows and remove the panel. Turn the speaker unit to counterclockwise direction while inserting a flat-bladed screwdriver into
one of the hollows around speaker unit, and then remove the speaker
unit. After replacing the speaker unit, install it turning to clockwise
direction until "click" sound comes out.
3. Place the speaker horizontally. Tap head of the cut chisel
with plastic hammer as shown in Fig-3, and remove the
PANEL, FR completely.
Fig-1Fig-2
How to Attach the PANEL, FR
Attach the PANEL, FR to the PANEL, SPKR. Tap the four
corners of the PANEL, FR with the plastic hammer to fit the
PANEL, FR into the PANEL, SPKR completely.
– 33 –
Fig-3
Page 34
SPEAKER PARTS LIST
(SX-NAJ12YUSL / SX-NSZ15YLSC9 / SX-NSZ15YLSC2M / SX-NSZ15YLSC1)