Page 1
1-2 (No.MB695)
SPECIFICATION
Main unit (CA-NXF40/CA-NXF30)
Designs and specifications are subject to change without notice.
Tuner
FM frequency 87.50 MHz - 108.00 MHz
Terminal (front of the main unit)
USB digital input terminal × 1
Audio output headphone terminal × 1 Impedance 16 Ω - 1 kΩ
Terminal (rear of the main unit)
Audio output speaker terminals × 1
Left/right speakers Output power 220 W (55 W × 4) at 3 Ω (1 kHz/10% THD)
Impedance 3 Ω - 16 Ω
Subwoofer Output power 180 W at 6 Ω (100 Hz/10% THD)
Impedance 6 Ω - 16 Ω
Optical digital input terminal × 1 -23 dBm to -15 dBm
Optical digital output terminal × 1 -23 dBm to -15 dBm
Component video output terminals × 1 Y 1.0 Vp-p, 75 Ω terminated
PB 0.7 Vp-p, 75 Ω terminated
PR 0.7 Vp-p, 75 Ω terminated
Composite video output terminal × 1 1.0 Vp-p, 75 Ω terminated
Audio input terminals × 1 500 mV/47 kΩ
HDMI monitor output terminal × 1
FM antenna terminal × 1
USB
Compatible with USB 2.0 Full-Speed
Compatible device USB mass storage class device
Compatible file system FAT16, FAT32
Output power DC 5 V = 500 mA
HDMI
Output power DC 5 V = 55 mA
General
Power source AC 230 V ~, 50 Hz
Power consumption (in operation) 100 W
Power consumption (on standby) 1 W or less
Dimensions (W × H × D) [including projecting parts] 312 mm × 95 mm × 312.3 mm
Mass 3.5 kg
Speakers (SP-NXF40F/SP-NXF30F)
Type 1-way bass reflex type
Magnetically shielded type
Speaker driver Front ch 5.5 cm cone
Surround ch 5.5 cm cone
Power handling capacity Front ch 55 W
Surround ch 55 W
Impedance 3 Ω
Frequency range 80 Hz - 20 kHz
Sound pressure level 77 dB/W/m
Dimensions (W × H × D) [including projection parts] 88 mm × 203 mm × 127 mm
Subwoofer (SP-NXF30W)
Type Bass reflex type
Speaker driver 16 cm cone
Power handling capacity 180 W
Impedance 6 Ω
Frequency range 30 Hz - 200 Hz
Sound pressure level 76 dB/W/m
Dimensions (W × H × D) 300 mm × 301 mm × 303 mm
Mass 8.2 kg
Page 2
(No.MB695)1-3
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purpos-
es. For continued protection, no changes should be made
to the original design unless authorized in writing by the
manufacturer. Replacement parts must be identical to
those used in the original circuits. Services should be per-
formed by qualified personnel only.
(2) Alterations of the design or circuitry of the product should
not be made. Any design alterations of the product should
not be made. Any design alterations or additions will void
the manufacturers warranty and will further relieve the
manufacture of responsibility for personal injury or property
damage resulting therefrom.
(3) Many electrical and mechanical parts in the products have
special safety-related characteristics. These characteris-
tics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by us-
ing replacement components rated for higher voltage, watt-
age, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Ser-
vice Manual. Electrical components having such features
are identified by shading on the schematics and by ( ) on
the Parts List in the Service Manual. The use of a substitute
replacement which does not have the same safety charac-
teristics as the recommended replacement parts shown in
the Parts List of Service Manual may create shock, fire, or
other hazards.
(4) The leads in the products are routed and dressed with ties,
clamps, tubings, barriers and the like to be separated from
live parts, high temperature parts, moving parts and/or
sharp edges for the prevention of electric shock and fire
hazard. When service is required, the original lead routing
and dress should be observed, and it should be confirmed
that they have been returned to normal, after reassem-
bling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isola-
tion check on the exposed metal parts of the product (an-
tenna terminals, knobs, metal cabinet, screw heads,
headphone jack, control shafts, etc.) to be sure the product
is safe to operate without danger of electrical shock.Do not
use a line isolation transformer during this check.
- Plug the AC line cord directly into the AC outlet. Using a
"Leakage Current Tester", measure the leakage current
from each exposed metal parts of the cabinet, particular-
ly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage cur-
rent must not exceed 0.5mA AC (r.m.s.).
- Alternate check method
Plug the AC line cord directly into the AC outlet. Use an
AC voltmeter having, 1,000Ω per volt or more sensitivity
in the following manner. Connect a 1,500Ω 10W resistor
paralleled by a 0.15µF AC-type capacitor between an ex-
posed metal part and a known good earth ground.
Measure the AC voltage across the resistor with the ACvoltmeter.
Move the resistor connection to each exposed metal
part, particularly any exposed metal part having a return
path to the chassis, and measure the AC voltage across
the resistor. Now, reverse the plug in the AC outlet and
repeat each measurement. Voltage measured any must
not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5
mA AC (r.m.s.).
1.2 Warning
(1) This equipment has been designed and manufactured to
meet international safety standards.
(2) It is the legal responsibility of the repairer to ensure that
these safety standards are maintained.
(3) Repairs must be made in accordance with the relevant
safety standards.
(4) It is essential that safety critical components are replaced
by approved parts.
(5) If mains voltage selector is provided, check setting for local
voltage.
1.3 Caution
Burrs formed during molding may be left over on some parts
of the chassis.
Therefore, pay attention to such burrs in the case of pre-
forming repair of this system.
1.4 Critical parts for safety
In regard with component parts appearing on the silk-screen
printed side (parts side) of the PWB diagrams, the parts that are
printed over with black such as the resistor ( ), diode ( )
and ICP ( ) or identified by the " " mark nearby are critical
for safety. When replacing them, be sure to use the parts of the
same type and rating as specified by the manufacturer.
(This regulation dose not Except the J and C version)
Good earth groundPlace this
probe on
each exposed
metal part. AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE
Page 3
1-4 (No.MB695) 1.5 Preventing static electricity
Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc. is discharged, can destroy the laser
diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.
1.5.1 Grounding to prevent damage by static electricity
Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as laser products.
Be careful to use proper grounding in the area where repairs are being performed.
(1) Ground the workbench
Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over it before placing the
traverse unit (optical pickup) on it.
(2) Ground yourself
Use an anti-static wrist strap to release any static electricity built up in your body.
(3) Handling the optical pickup
- In order to maintain quality during transport and before installation, both sides of the laser diode on the replacement optical
pickup are shorted. After replacement, return the shorted parts to their original condition.
(Refer to the text.)
- Do not use a tester to check the condition of the laser diode in the optical pickup. The tester's internal power source can easily
destroy the laser diode.
1.6 Handling the traverse unit (optical pickup)
(1) Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.
(2) Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup. For specific details, refer to the
replacement procedure in the text. Remove the anti-static pin when replacing the traverse unit. Be careful not to take too long a
time when attaching it to the connector.
(3) Handle the flexible cable carefully as it may break when subjected to strong force.
(4) I t is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it.
1.7 Attention when traverse unit is decomposed
*Please refer to "Disassembly method" in the text for the pickup unit.
- Apply solder to the short land sections before the card wire is disconnected from the connecto on the servo board. (If the card wire
is disconnected without applying solder, the pickup may be destroyed by static electricity.)
- In the assembly, be sure to remove solder from the short land sections after connecting the card wire.
1M Conductive material
(conductive sheet) or iron palate (caption)
Anti-static wrist strap
Solder short land section
Page 12
(No.MB695)1-13 3.2.5 Removing the tray assembly (See Fig.14 & 15)
(1) Remove the two screws J attaching the clamper base.
(See Fig.14)
(2) Remove the one screw K attaching the shaft guide from
bottom side. (See Fig.14)
Fig.14(3) Remove the two screws L attaching the shaft guide from
top side. (See Fig.15)
Caution:
When attach the tray assembly, boss of loading sub as-
sembly should attach to guide of bottom side at tray as-
sembly. (See Fig.15)
Fig.15
J
order 1
order 2
clamper base
K
[bottom side]
L
