JVC NX-F30B User manual

SERVICE MANUAL
COPYRIGHT © 2009 Victor Company of Japan, Limited No.MB695<Rev.001>
2009/4
COMPACT COMPONENT SYSTEM
MB695<Rev.001>20094SERVICE MANUAL
NX-F30B, NX-F30E, NX-F30EN,
NX-F40B, NX-F40E, NX-F40EN
COPYRIGHT © 2009 Victor Company of Japan, Limited
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Lead free solder used in the board (material : Sn-Cu, melting point : 230 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
CA-NXF40SP-NXF40F
CA-NXF30SP-NXF30F
SP-NXF40F
SP-NXF30F
SP-NXF30W

1-2 (No.MB695<Rev.001>)
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 Ωterminated
PB 0.7 Vp-p, 75 Ωterminated
PR 0.7 Vp-p, 75 Ωterminated
Composite video output terminal ×1 1.0 Vp-p, 75 Ωterminated
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

(No.MB695<Rev.001>)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, 1,000Ωper volt or more sensitivity
in the following manner. Connect a 1,500Ω10W 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 AC
voltmeter.
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 ground
Place this
probe on
each exposed
metal part.
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
1500 10W
0.15 F AC TYPE

1-4 (No.MB695<Rev.001>)
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

(No.MB695<Rev.001>)1-5
1.8 Important for laser products
1.CLASS 1 LASER PRODUCT
2.CAUTION :
(For U.S.A.) Visible and/or invisible class II laser radiation
when open. Do not stare into beam.
(Others) Visible and/or invisible class 1M laser radiation
when open. Do not view directly with optical instruments.
3.CAUTION : Visible and/or invisible laser radiation when
open and inter lock failed or defeated. Avoid direct
exposure to beam.
4.CAUTION : This laser product uses visible and/or invisible
laser radiation and is equipped with safety switches which
prevent emission of radiation when the drawer is open and
the safety interlocks have failed or are defeated. It is
dangerous to defeat the safety switches.
5.CAUTION : If safety switches malfunction, the laser is able
to function.
6.CAUTION : Use of controls, adjustments or performance of
procedures other than those specified here in may result in
hazardous radiation exposure.
REPRODUCTION AND POSITION OF LABELS and PRINT
!Please use enough caution not to
see the beam directly or touch it
in case of an adjustment or operation
check.
WARNING LABEL and PRINT

1-6 (No.MB695<Rev.001>)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
SECTION 3
DISASSEMBLY
3.1 Main body (Used figure are NX-F30E)
3.1.1 Removing the Top cover (See Fig.1 to 3)
(1) Remove the six screws Aattaching the Top and Right cov-
er. (See Fig.1)
Fig.1
(2) Remove the Volume knob and Source knob.
(3) Remove the three screws Battaching the Right panel.
(See Fig.2)
Fig.2
(4) Slide to frontward and then remove the Right panel.
(5) Slide to backward and then remove the Side panel. (See
Fig.3)
Fig.3
(6) Slide to backward and then remove the Top cover.
3.1.2 Removing the Front panel (See Fig.4 to 7)
(1) Remove the three screws Cattaching the Front panel.
(See Fig.4)
Fig.4
(2) Disconnect the card wire from Main board connected to
connector CN561 of the Front board. (See Fig.5)
(3) Remove the three screws Dattaching the Front panel.
(See Fig.5)
Fig.5
A
A
B
CC
hook a
CN561
DD

(No.MB695<Rev.001>)1-7
(4) Disengage one hook aengaged bottom side of the Front
panel. (See Fig.4)
(5) Disengage two hooks bengaged both side of the Front
panel. (See Fig.6)
Fig.6
(6) Disconnect the card wire from main board connected to
connector CN531 of the Touch sensor board. (See Fig.7)
(7) Disconnect the card wire from Main board connected to
connector CN302 of the Front jack board. (See Fig.7)
(8) Disconnect the connector wire from Main boards connect-
ed to connector CN301 of the DVD module board. (See
Fig.7)
Fig.7
3.1.3 Removing the Top chassis (See Fig.8 to 10)
(1) Disconnect the card wires from Amp board connected to
connectors CN201 and CN202 of the Main board. (See
Fig.8)
(2) Disconnect the connector wire from Power supply unit con-
nected to connector CN103 of the Amp board. (See Fig.8)
(3) Disconnect the connector wire from Main board connected
to connector CN104 of the Amp board. (See Fig.8)
Fig.8
(4) Remove the nine screws Eattaching the Top chassis. (see
Fig.9)
Fig.9
(5) Remove the four screws Fattaching the both side of the
Top chassis. (See Fig.10)
Fig.10
3.1.4 Removing the Amp board (See Fig.11)
(1) Remove the three screws Gattaching the Heat sink.
(2) Remove the four screws Hattaching the Amp board.
Fig.11
hook b
CN531 CN302
CN301
CN202 CN104
CN201 CN103
E
F
H
G

1-8 (No.MB695<Rev.001>)
3.1.5 Removing the Main board (See Fig.12, 13)
(1) Disconnect the connector wire from FAN connected to con-
nector CN461 of the Main board. (See Fig.12)
(2) Disconnect the connector wire from Power supply unit con-
nected to connector CN981 of the Main board. (See Fig.12)
(3) Disconnect the card wires from DVD module board con-
nected to connectors, CN481, CN661 and CN701 of the
Main board. (See Fig.12)
(4) Disconnect the card wire from Tuner pack connected to
connector CN421 of the Main board. (see Fig.12)
(5) Disconnect the card wire from Loader board connected to
connector CN451 of the Main board. (See Fig.12)
Fig.12
(6) Remove the four screws Jattaching the Main board. (see
Fig.13)
Fig.13
3.1.6 Removing the Rear panel (See Fig.14)
(1) Remove the four screws Kand one screw Lattaching the
Rear panel.
Fig.14
3.1.7 Removing the DVD mechanism (See Fig.15)
(1) Remove the three screws Mattaching the DVD module
board.
(2) Remove the one screw Nattaching the DVD mechanism.
Fig.15
3.1.8 Removing the Power supply unit (see Fig.16)
(1) Remove the five screws Pattaching the Power supply unit.
Fig.16
CN451 CN981CN701 CN481
CN461 CN661CN421
J
KKL
MN
P
P

(No.MB695<Rev.001>)1-9
3.1.9 Removing the Front jack board (See Fig.17)
(1) Remove the three screws Qattaching the Front jack board.
Fig.17
3.1.10 Removing the Front board (See Fig.18)
(1) Remove the six screws Rattaching the Front board.
Fig.18
Q
R

1-10 (No.MB695<Rev.001>)
3.2 DVD mechanism assembly
3.2.1 Removing the traverse mechanism (See Fig.1 to 6)
(1) Remove the two screws Aattaching the tramecha holder
from top side of DVD mechanism assembly. (See Fig.1)
Fig.1
(2) Remove the two screws Battaching the DVD module
board. (See Fig.2)
Fig.2
(3) Remove the four screws Cattaching the CB holder and
take out it. (See Fig.3)
Fig.3
(4) Remove the four screws Dattaching the traverse mecha-
nism. (See Fig.4)
Fig.4
A
A
Clamper base
DVD mechanism assembly
B
B
DVD module board
DVD mechanism assembly
CC
C
C
DVD module board
DD
Traverse mechanism assembly
DVD mechanism assembly

(No.MB695<Rev.001>)1-11
(5) Solder the solder part of DVD pick up. (See Fig.5)
Fig.5
(6) Disconnect the card wire from CN101 and CN201 on the
DVD module board. (See Fig. 6)
Caution:
• Solder the short land section on the DVD pickup be-
fore disconnecting the card wire from the connector on
the DVD pickup. If the card wire is disconnected with-
out attaching solders, the pickup may be destroyed by
static electricity.
• When attaching the DVD pickup, be sure to remove
solders from the short land section after connecting
the card wire to the connector on the DVD pickup.
Fig.6
3.2.2 Removing the pickup assembly (See Fig.7 to 11)
(1) Remove the two rod springs pressing the guide shaft. (See
Fig.7)
Fig.7
(2) Remove the screw Eand Fattaching the spring holder.
See Fig.8)
Fig.8
(3) Remove the read screw from traverse mechanism assem-
bly. (See Fig.9)
Fig.9
(4) Remove the bar spring pressing the shaft. (See Fig.10)
Fig.10
Solder short land section
CN101
CN201
DVD module board
ROD SPRING ROD SPRING
EF
Spring holder
Lead screw
Middle gear
(T.TABLE)
HOOK
(SHAFT)
(BAR SPRING)

1-12 (No.MB695<Rev.001>)
(5) Take out the pickup assembly from traverse mechanism
chassis by order. (See Fig.11)
Fig.11
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)
3.2.3 Removing the feed motor assembly (See Fig.12)
(1) Remove the one screw Gattaching the feed motor assem-
bly.
(2) Remove the feed motor wires from solder part of spindle
motor board.
Fig.12
3.2.4 Removing the spindle motor assembly (See Fig.13)
(1) Remove the three screws Hattaching the spindle motor
from spindle motor board.
Fig.13
order 1
order 2
order 3
Lead screw
Middle gear
Solder part
G
Spindle motor
H

(No.MB695<Rev.001>)1-13
3.2.5 Removing the tray assembly (See Fig.14 & 15)
(1) Remove the two screws Jattaching the clamper base.
(See Fig.14)
(2) Remove the one screw Kattaching the shaft guide from
bottom side. (See Fig.14)
Fig.14
(3) Remove the two screws Lattaching 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

SECTION 4
ADJUSTMENT
4.1 ATTENTION IN SERVICE OF DVD SECTION
(1) When pickup, Flash ROM, DVD module board was changed, initialize EEPROM by all means
(2) When full initialization was executed, execute learning with a DVD test disc by all means.
Test disc: VT-501, VT-502
Learning method: It is adjusted automatically by normal playback of a DVD disc.
4.2 TEST MODE
4.2.1 SYSTEM COLD SET
"STOP+POWER+0" at the time of POWER OFF with reception of 2 times, the COLD SET is done.
↓
↓
4.2.2 FL DISPLAY / LED/ FAN / FM PRESET
"STOP+POWER+1" at the time of POWER ON with reception, the changes is done.
↓
↓
4.2.3 DVD STATUS MODE
"STOP+POWER+2" at the time of POWER ON with reception, the below-mentioned indication state transition is done.
Mode is cancelled with the Any Key press.
↓
↓
↓
4.2.4 SYSTEM STATUS MODE
"STOP+POWER+3" at the time of POWER ON with reception, the below-mentioned indication state transition is done.
Mode is cancelled with the Any Key press.
<POWER when ON >
↓
↓
↓
↓
* Note in use
Because from POWER ON various SAFETY detection processing start 2 seconds later, When we would like to make
ShutDown cause indicate, from POWER ON move to TEST MODE within 2 seconds.
POWER OFF state
COLD SET
POWER OFF state
POWER ON state
FL full display / LED blink / FAN high speed / FM preset is installed
Normality indication
POWER ON state
(1) DVD Temp Info indication
(2) EDID Information indication
Normality indication
POWER ON state
(1) Indication of ShutDown cause *
(2) A/D port PWR_THERMO:AMP_THERMO:Indication of the voltage of LVL_DET
(3) Indication of VOLUME Gain limiting value.
Effective Gain limiting value:The Gain limiting value due to temperature:The Gain limiting value due to sound
Normality indication

(No.MB695<Rev.001>)1-15
* Indication of ShutDown cause : AA:BB:CC
4.2.5 SPK OUTPUT MEASURE MODE
"STOP+POWER+4" at the time of POWER ON due to reception, it moves to SPK output measurement mode.
“MEASURE” is indicates in FL stationary, The VOLUME ATT restriction processing with audio level detection is cancelled.
The VOLUME ATT restriction processing with audio level detection is cancelled.
Exit the mode if second time STOP+POWER+4 input.
It is mode for POWER measurement on the line.
↓
↓
4.2.6 Version indication
"STOP+POWER+10" at the time of POWER ON with reception, the below-mentioned indication state transition is done.
Mode it cancels with the Any Key.
↓
↓
↓
↓
↓
4.2.7 DVD INITIALIZATION
Press of front panel POWER key at the time of AC plug IN, enter the DVD test mode.
↓
↓
↓
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
Shut Down Factor, AA : 0x00 = Reset Safety kind, BB : 0xA4 = PWR_THERMO Safety Detection level : 0 = LOW
0x02 = Remote control POWER key 0xA5 = AMP_THERMO 1 = HIGH
0x03 = Front Panel POWER key 0x77 = AMP_PRT
0x05 = SLEEP trigger 0x80 = AMP_SAFETY
0x08 = CEC POWER off 0x52 = FAN_SAFETY
0x61 = SAFETY2
0x60 = SAFETY1
POWER ON state
SPK OUTPUT MEASURE MODE
Mode coming out
POWER ON state
(1) Indication of Syscon ROM version and its ROM Correction version
(2) Indication of Model name and Hardware destination
(3) The indication of BE Firm Ver
(4) Indication of BE destination / REGION No
Normality indication
Press and hold POWER key + AC IN
(1) "T ##$ 0 "
(2) Press PLAY key on front panel, "T ##$ 00"
DVD initialization end

(No.MB695<Rev.001>)
VSE
Printed in Japan
Victor Company of Japan, Limited
Audio/Video Systems Division 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan