RXD-402-B
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SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
MB44820059
RX-D402B, RX-D401S
Area suffix
J ---------------------------- U.S.A.
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
TABLE OF CONTENTS
1 PRECAUTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
2 SPECIFIC SERVICE INSTRUCTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-7
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-19
COPYRIGHT © 2005 Victor Company of Japan, Limited
No.MB448
2005/9
SPECIFICATION
Amplifier Output Power At stereo operation Front channels 110 W per channel, min. RMS, driven into 6
Ω at 20 Hz to 20 kHz with no more than 0.8%
total harmonic distortion.
At surround operation Front channels 110 W per channel, min. RMS, driven into 6
Center channel 110 W, min. RMS, driven into 6
Surround channels 110 W per channel, min. RMS, driven into 6
Surround back channels 110 W per channel, min. RMS, driven into 6
Audio Audio Input Sensitivity/
Video Video Input Sensitivity/
HDMI HDMI Input (Ver. 1.1) VCR (DBS), DVR/DVD
FM tuner (IHF) Tuning Range 87.5 MHz to 108.0 MHz
Usable Sensitivity Monaural 12.8 dBf (1.2
50 dB Quieting Sensitivity Monaural 16.0 dBf (1.7
Stereo Separation at REC OUT 35 dB at 1 kHz
AM tuner Tuning Range 530 kHz to 1 710 kHz
General Power Requirements AC 120 V , 60 Hz
Power Consumption 150 W/200 VA (at operation)
Dimensions (W
Mass 7.1 kg (15.7 lbs)
Impedance
Audio Input
(DIGITAL IN)*
Audio Output Level DVR, VCR 270 mV
Signal-to-Noise Ratio ('66 IHF/'78 IHF) 80 dB/62 dB
Frequency Response (6
Bass Boost +4 dB ±1 dB at 100 Hz
Equalization
(at DSP operation)
Impedance
Video Output Level/
Impedance
× H × D) 435 mm × 91.5 mm × 371 mm (17 3/16 inch-
DVR/DVD, VCR, DBS, TV 270 mV/47 k
Coaxial DIGITAL IN 1(DVR/DVD): 0.5 V(p-p)/75 Ω
Optical DIGITAL IN 2(DBS), 3(VCR): -21 dBm to -15
USB USB
Ω) 20 Hz to 20 kHz (±1 dB)
Center frequency 63 Hz, 250 Hz, 1 kHz, 4 kHz, 16 kHz
Control range ±8 dB
Composite video:DVR/DVD, VCR, DBS 1 V(p-p)/75
S-video:DVR/DVD, VCR, DBS Y (luminance): 1 V(p-p)/75 Ω
Component:DVR/DVD, VCR (DBS) Y (luminance): 1 V(p-p)/75 Ω
Composite video: DVR, VCR, MONITOR OUT 1 V(p-p)/75 Ω
S-video: DVR, VCR, MONITOR OUT Y (luminance): 1 V(p-p)/75 Ω
Component: MONITOR OUT Y (luminance): 1 V(p-p)/75 Ω
Synchronization Negative
HDMI Output (Ver. 1.0) MONITOR OUT
Stereo 37.5 dBf (20.5
Ω at 1 kHz with no more than 0.8% total har-
monic distortion.
Ω at 1
kHz,with no more than 0.8% total harmonic
distortion.
Ω at 1 kHz, with no more than 0.8% total har-
monic distortion.
Ω at 1 kHz, with no more than 0.8% total har-
monic distortion.
Ω
dBm (660 nm ±30 nm)
Ω
C (chrominance, burst):0.286 V(p-p)/75 Ω
PB, PR: 0.7 V(p-p)/75 Ω
C (chrominance, burst): 0.286 V(p-p)/75 Ω
PB, PR: 0.7 V(p-p)/75 Ω
µV/75 Ω)
µV/75 Ω)
µV/75 Ω)
0.9 W (in standby mode)
es
× 3 5/8 inches × 14 5/8 inches)
*Corresponding to Linear PCM, Dolby Digital, and DTS (with sampling frequency -32 kHz, 44.1 kHz, 48 kHz).
Designs and specifications are subject to change without notice.
1-2 (No.MB448)
SECTION 1
PRECAUTION
1.1 Safety Precautions
(1) This design of this product contains special hardware and
many circuits and components specially for safety purposes. 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 performed 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 characteristics are often not evident from visual inspection nor can the
protection afforded by them necessarily be obtained by using replacement components rated for higher voltage, wattage, etc. Replacement parts which have these special
safety characteristics are identified in the Parts List of Service 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 characteristics 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 reassembling.
(5) Leakage shock hazard testing
After reassembling the product, always perform an isolation check on the exposed metal parts of the product (antenna 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, particularly any exposed metal part having a return path to the
chassis, to a known good earth ground. Any leakage current 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 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.).
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
0.15 F AC TYPE
Place this
probe on
1500 10W
Good earth ground
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 preforming 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)
each exposed
metal part.
(No.MB448)1-3
1.5 Importance administering point on the safety
Primary board (Forward side)
F103
Main amplifier board (Forward side)
F102
F101
Caution: For continued protection against risk of
fire, replace only with same type 4 A/125 V for
F101, 4 A/125 V for F102, 6.3 A/125 V for F103.
This symbol specifies type of fast operating fuse.
Precaution: Pour eviter risques de feux, remplacez
le fusible de surete de F101 comme le meme type
que 4 A/125 V, 4 A/125 V pour F102, et 6,3 A/125V
pour F103.
Ce sont des fusibles suretes qui functionnes rapide.
^
1-4 (No.MB448)
1.6 Caution after repairs
There are two power supply as the second power supply of the transformer.
One is a power supply for power IC(3pin), and another is a power supply for the control(5pin).
+B for power IC
(3pins)
There are two power supply as the second power supply of the transformer.
One is a power supply for power IC(3pin), and another is a power supply for the control(8pin).
Please connect first of all and confirm the power supply for the control when you do the energizing examination after it completes of
the repair.
+B for control section
(8pins)
For power IC(3pins)
Please never do the energizing examination in a power supply of power IC alone.
Moreover, when the control system breaks down, power IC is occasionally damaged.
(No.MB448)1-5
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
1-6 (No.MB448)
SECTION 3
DISASSEMBLY
3.1 Main body section
3.1.1 Removing the top cover
(See Figs.1 and 2)
(1) From the both sides of the main body, remove the four
screws A attaching the top cover. (See Fig.1)
(2) From the back side of the main body, remove the five
screws B and screw C attaching the top cover. (See Fig.2)
(3) Remove the top cover in the direction of the arrow. (See
Fig.1.)
Top cover
A
Fig.1
3.1.2 Removing the HDMI board
(See Fig.3)
• Remove the top cover.
(1) From the back side of the main body, remove the three
screws D attaching the HDMI board to the rear panel.
(2) From the top side of the main body, remove the screw E at-
taching the HDMI board to the support bracket.
(3) Disconnect the card wires from the connectors (CN731
, CN762) on the HDMI board.
CN732
(4) Take out the HDMI board from the main body and discon-
nect the parallel wires from the connectors (CN771,
) on the reverse side of the HDMI board.
CN772
Reference:
Remove the shield from the HDMI board as required.
B
C
Top cover
B B
Fig.2
CN732
CN731
,
Support bracket
E
Shield
CN771
CN762
CN772 HDMI board
D
Rear panel
Fig.3
(No.MB448)1-7
3.1.3 Removing the front panel assembly
(See Figs.4 and 5)
• Remove the top cover and HDMI board.
(1) From the top side of the main body, remove the tie band
bundling the wires. (See Fig.4.)
Reference:
After reassembling, bundle the wires with a new tie band
as before. (See Fig.4.)
(2) Release the wire holders bundling the wires. (See Fig.4)
(3) Disconnect the card wire from the connector CN102
main amplifier board. (See Fig.4)
(4) Disconnect the wire from the connector CN351
amplifier board. (See Fig.4)
(5) Disconnect the wire from the connector CN552
board. (See Fig.4)
(6) Disconnect the wire from the connector CN661
board. (See Fig.4)
(7) Remove the three screws F attaching the front panel as-
sembly. (See Fig.4)
(8) Remove the screw F attaching the OSD connect 2 board.
(See Fig.4)
(9) From the bottom side of the main body, remove the four
screws F attaching the front panel assembly. (See Fig.5)
(10) Release the joints a and remove the front panel assembly
in the direction of the arrow. (See Fig.5)
on the
on the main
on the input
on the DSP
CN102
Wire holders
F
CN552
Input board
Main amplifier board
Wire holder
Wire holder
F
CN661
DSP board
Tie band
F
F
CN351
OSD connect 2 board
Front panel assembly
F
Fig.4
F
a
Fig.5
1-8 (No.MB448)
3.1.4 Removing the rear panel
(See Fig.6)
• Remove the top cover.
(1) From the back side of the main body, remove the strain re-
lief from the rear panel in the direction of the arrow and remove the power cord.
(2) Remove the three screws G and twenty-seven screws H
attaching the rear panel.
3.1.5 Removing the tuner
(See Fig.7)
• Remove the top cover.
(1) From the top side of the main body, disconnect the card
wire from the connector CN1
(2) From the back side of the main body, remove the two
screws J attaching the tuner to the rear panel and take out
the tuner.
3.1.6 Removing the subwoofer board
(See Fig.7)
• Remove the top cover.
(1) From the top side of the main body, disconnect the wire
from the connector CN524
(2) From the back side of the main body, remove the screw K
attaching the subwoofer board to the rear panel and take
out the subwoofer board.
on the tuner.
on the subwoofer board.
Power cord
H
Strain relief
G HHG H
DSP board
CN661CN652
Fig.6
Rear panel
CN683
N
CN682
3.1.7 Removing the DSP board
(See Fig.7)
• Remove the top cover.
(1) From the back side of the main body, remove the five
screws M attaching the DSP board to the rear panel.
(2) Remove the screw N attaching the DSP board.
(3) Disconnect the DSP board from the DSP connect board
while releasing the claw b of the connector CN681
DSP board.
Note:
When releasing the claw b, take care not to break it.
(4) Take out the DSP board and disconnect the wires from the
connectors (CN661
the DSP board.
(5) Disconnect the card wires from the connectors (CN651
) on the forward side of the DSP board.
CN652
, CN682, CN683) on the forward side of
on the
CN651 Tuner
DSP board
CN681
b
DSP connect board
,
M
Rear panel Rear panel
Fig.7
CN1 CN524
KJ
Subwoofer board
(No.MB448)1-9
3.1.8 Removing the compulink board
(See Fig.8)
• Remove the top cover and HDMI board.
(1) From the top side of the main body, disconnect the wire
from the connector CN565 on the compulink board.
(2) From the back side of the main body, remove the screw P
attaching the compulink board to the rear panel and take
out the compulink board.
3.1.9 Removing the primary board
(See Fig.8)
• Remove the top cover and HDMI board.
(1) From the top side of the main body, remove the screw Q
attaching the support bracket on the chassis base.
(2) Release the wire holders and disconnect the wire from the
connector CN101
(3) Disconnect the power cord from the connector CN120 on
the primary board.
(4) Remove the two screws R and two screws R' attaching the
primary board.
Reference:
When attaching the screws R', attach the wire holders
with them as before.
(5) Take out the primary board from the main body and remove
the wires from the soldered sections c on the reverse side
of the primary board.
on the main amplifier board.
Primary board
Wire holder
R'
c
R
CN120
Wire holder
R' R
Q
Chassis base
Wire holderCN101
CN565
Main amplifier board
Compulink board
P
Support bracket
Rear panel
Fig.8
1-10 (No.MB448)
3.1.10 Removing the power transformer
(See Fig.9)
• Remove the top cover.
(1) From the top side of the main body, remove the tie band
bundling the wires.
Reference:
After reassembling, bundle the wires with a new tie band
as before.
(2) Release the wire holders to remove the wires.
(3) Disconnect the wires from the connectors (CN106
on the main amplifier board.
(4) Remove the soldered sections d and remove the wires.
(5) Remove the four screws S and take out the power trans-
former from the main body.
3.1.11 Removing the trans primary board
(See Fig.9)
• Remove the top cover.
(1) From the top side of the main body, remove the tie band
bundling the wires.
Reference:
After reassembling, bundle the wires with a new tie band
as before.
(2) Remove the wires from the soldered sections d and re-
move the wires.
(3) Remove the solders from the soldered sections e and re-
move the trans primary board.
, CN111)
Trans primary
board
d
e
f
Trans secondary
board
Tie band
Wire holder
S
S
S
Fig.9
Wire holders
CN106 C N111
Main amplifier board
3.1.12 Removing the trans secondary board
(See Fig.9)
• Remove the top cover.
Reference:
Take out the power transformer from the main body as re-
quired.
From the side of the power transformer, remove the solders from
the soldered sections f and remove the trans secondary board.
(No.MB448)1-11
3.1.13 Removing the DCDC control board
(See Fig.10)
• Remove the top cover.
From the top side of the main body, disconnect the DCDC control
board from the main amplifier board in an upward direction while
releasing the claw g of the connector CN152
fier board.
Note:
When releasing the claw g, take care not to break it.
on the main ampli-
DCDC control board
g
CN152
Main amplifier board
3.1.14 Removing the PWM modulation 1 board
(See Fig.11)
• Remove the top cover.
(1) Disconnect the wire from the connector CN413
PWM modulation 2 board.
(2) Disconnect the wires from the connectors (CN311
CN313) on the PWM modulation 1 board.
(3) Disconnect the PWM modulation 1 board from the main
amplifier board in an upward direction while releasing the
claw h of the connector CN302
Note:
When releasing the claw h, take care not to break it.
on the main amplifier board.
on the
, CN312,
DCDC control board
CN402
Main amplifier
board
CN312
j
Main amplifier board
Fig.10
PWM modulation 1 board
h
CN302
CN313 CN311
3.1.15 Removing the PWM modulation 2 board
(See Fig.11)
• Remove the top cover.
(1) From the top side of the main body, disconnect the wires
from the connectors (CN411
modulation 2 board.
(2) Disconnect the PWM modulation 2 board from the main
amplifier board in an upward direction while releasing the
claw j of the connector CN402
Note:
When releasing the claw j, take care not to break it.
1-12 (No.MB448)
, CN412, CN413) on the PWM
on the main amplifier board.
CN411CN413CN412
PWM modulation 2 board
Fig.11
3.1.16 Removing the cooling fan
(See Fig.12.)
• Remove the top cover.
(1) Disconnect the wire from the connector CN103
amplifier board.
(2) Remove the screw T and screw T'.
Reference:
When attaching the screw T', attach the wire holder with
it.
(3) Take out the cooling fan assembly.
(4) Remove the four screws U attaching the cooling fan to the
fan bracket.
on the main
Cooling fan assembly
Cooling fan
Wire holder
T'
CN103
U
3.1.17 Removing the speaker terminal 1 and speaker terminal 2 boards
(See Fig. 13)
• Remove the top cover and rear panel.
Reference:
Remove the tuner, subwoofer board and DSP board as required.
(1) From the top side of the main body, disconnect the wire
from the connector CN265
board.
(2) Disconnect the parallel wire from the connector CN465
the speaker terminal 1 board.
(3) Take out the speaker terminal 1 board from the main body.
(4) Disconnect the wires from the connectors (CN209
on the speaker terminal 2 board.
(5) Take out the speaker terminal 2 board from the main body.
on the speaker terminal 1
on
, CN262)
Fan bracket
CN262
U
T
Main amplifier board
Fig.12
CN465CN209
CN265
Speaker terminal 2 board
Fig.13
Speaker terminal 1 board
(No.MB448)1-13
3.1.18 Removing the DSP connect board
(See Fig.14)
• Remove the top cover, tuner and DSP board.
(1) Disconnect the wire from the connector CN209 on the
speaker terminal 2 board.
(2) Disconnect the DSP connect board from the input board in
an upward direction while releasing the claw k of the connector CN502
Note:
When releasing the claw k, take care not to break it.
(3) Disconnect the connector CN516
board from the input board.
3.1.19 Removing the OSD connect 1 board
(See Fig.14)
• Remove the top cover, tuner and DSP board.
(1) Disconnect the wire from the connector CN524
woofer board.
(2) Disconnect the wire from the connector CN513
connect 1 board.
(3) Disconnect the OSD connect 1 board from the main ampli-
fier board in an upward direction while releasing the claw m
of the connector CN222
Note:
When releasing the claw m, take care not to break it.
on the input board.
on the DSP connect
on the sub-
on the OSD
on the main amplifier board.
DSP connect
board
k
CN502
Input board CN513
CN516
DSP connect board
OSD connect 1
board
m
CN222
Main amplifier board
CN209 CN524
Speaker terminal
2 board
OSD connect 1 board
Subwoofer
board
3.1.20 Removing the input board
(See Fig. 15)
• Remove the top cover, HDMI board, rear panel, tuner, sub-
woofer board, DSP board, compulink board and DSP connect
board.
(1) Disconnect the wire from the connector CN513
connect 1 board.
(2) Disconnect the wires from the connectors (CN530
CN552) on the input board.
(3) Disconnect the parallel wire from the connector CN540 on
the input board.
(4) Remove the three screws V and take out the input board
from the main body.
on the OSD
, CN531,
CN540
CN552
CN530
V V
Input board
Fig.14
OSD connect 1 board
CN531
CN513
Fig.15
1-14 (No.MB448)
3.1.21 Removing the master clock board
(See Fig.16)
• Remove the top cover, tuner, DSP board, PWM modulation 1
board, PWM modulation 2 board and OSD connect 1 board.
(1) From the top side of the main body, remove the tie band
bundling the wires.
Reference:
After reassembling, bundle the wires with a new tie band
as before.
(2) Disconnect the wire from the connector CN201
amplifier board.
(3) Remove the two screws W with a short driver and remove
the transistor hold from the joints n of the heat sink.
(4) Take out the master clock board from the main body.
on the main
Tie band
Transistor hold
n
n
3.1.22 Removing the HDMI-Regulator board
(See Fig.17)
• Remove the top cover.
(1) From the top side of the main body, disconnect the wire
from the connector CN117
lator board.
(2) Remove the two screws X attaching the HDMI-Regulator
board on the chassis base.
(3) Take out the HDMI-Regulator board from the main body.
on the forward side of the regu-
CN201
Main amplifier board
X
HDMI-Regulator board
Chassis base
W
Master clock board
Fig.16
HDMI-Regulator board
CN117
Fig.17
Regulator board
(No.MB448)1-15
3.1.23 Removing the main amplifier board
Y
(See Figs.18 and 19)
• Remove the top cover, HDMI board, front panel assembly, tun-
er, DSP board, DCD control board, PWM modulation 1 board,
PWM modulation 2 board, OSD connect 1 board and master
clock board.
(1) Disconnect the wire from the connector CN265
speaker terminal 1 board. (See Fig.18.)
(2) Disconnect the wire from the connector CN262
speaker terminal 2 board. (See Fig.18.)
(3) Disconnect the wires from the connectors (CN103
) on the main amplifier board. (See Fig.18.)
CN111
(4) Disconnect the parallel wire from the connector CN101
the main amplifier board. (See Fig.18.)
(5) Disconnect the wire from the connector CN117
ward side of the regulator board. (See Fig.18.)
(6) Disconnect the wires from the connectors (CN530
on the input board. (See Fig.19.)
(7) Disconnect the parallel wire from the connector CN540
the input board. (See Fig.19.)
(8) Remove the four screws Y and two screws Z. (See Fig.19.)
(9) Take out the main amplifier board with the regulator board
from the main body. (See Fig.19.)
on the
on the
, CN106,
on
on the for-
, CN531)
on
CN103
Main amplifier board
CN106
CN101 CN117
CN262Regulator board
Speaker terminal 2 board
CN265
Speaker terminal 1 board
CN111
Y
Input board
CN540
CN530
Fig.18
Z
CN531
Fig.19
Main amplifier board
Y
1-16 (No.MB448)
3.1.24 Removing the regulator board
(See Fig.20)
• Remove the top cover, HDMI board, front panel assembly, tun-
er, DSP board, DCD control board, PWM modulation 1 board,
PWM modulation 2 board, OSD connect 1 board, master clock
board and main amplifier board.
(1) From the forward side of the main amplifier board, discon-
nect the wire from the connector CN105
(2) Disconnect the wire from the connector CN114
ulator board.
(3) Remove the two screws AA attaching the regulator board.
.
on the reg-
Main amplifier board
Regulator board
3.1.25 Removing the heat sink
(See Fig.21)
• Remove the top cover, HDMI board, front panel assembly, tun-
er, DSP board, DCD control board, PWM modulation 1 board,
PWM modulation 2 board, OSD connect 1 board, master clock
board and main amplifier board.
(1) From the forward side of the main amplifier board, remove
the screw AB and remove the wire holder board with the
wires.
(2) Remove the five screws AC to remove the heat sink.
CN105
Heat sink
AC
Main amplifier board
CN114
AA
Fig.20
Wire holder board
AB
AC
Fig.21
(No.MB448)1-17
3.2 Front panel assembly section
• Remove the front panel assembly.
(See "3.1.3 Removing the front panel assembly".)
3.2.1 Removing the JOG board
(See Figs. 1 and 2)
(1) From the inside of the front panel assembly, remove the
four screws A attaching the JOG board. (See Fig.1.)
(2) Take out the JOG board while lifting it from the front panel
assembly little by little.
Reference:
The MASTER VOLUME knob and SOURCE SELECTOR knob are removed from the front side simultaneously. (See Fig.2.)
(3) From the forward side of the JOG board, disconnect the
wire from the connector CN913
3.2.2 Removing the OSD connect 2 board
(See Fig. 1)
(1) From the inside of the front panel assembly, remove the
two screws A attaching the OSD connect 2 board.
(2) Disconnect the wire from the connector CN914
board.
. (See Fig.1)
on the FL
Front panel assembly
CN913
A
A
JOG board
A
Front panel assembly
CN914
FL board
A
OSD connect 2 board
Fig.1
3.2.3 Removing the FL board
(See Fig. 3)
• Remove the JOG board.
(1) Remove the eight screws A and take out the FL board.
(2) Disconnect the wire from the connector CN914
board.
on the FL
SOURCE SELECTOR knob
Front panel assembly
A
A
MASTER VOLUME knob
Fig.2
FL board
CN914
Fig.3
A
A
1-18 (No.MB448)
SECTION 4
ADJUSTMENT
This service manual does not describe ADJUSTMENT.
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
(No.MB448)1-19
Victor Company of Japan, Limited
AV & MULTIMEDIA COMPANY AUDIO/VIDEO SYSTEMS CATEGORY 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB448)
Printed in Japan
VPT
SCHEMATIC DIAGRAMS
AUDIO / VIDEO CONTROL RECEIVER
RX-D402B,RX-D401S
CD-ROM No.SML200509
Area suffix
J ---------------------------- U.S.A.
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Contents
Block diagram
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2005 Victor Company of Japan, Limited.
2-1
2-3
2-25 to 36
No.MB448SCH
2005/9
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.
< MEMO >
Block diagram
F
S
S
_
R
R
R
R
R
o
o
Audio/Video signal input and system
control section
Y OUT
IC530
Y
Y SEL.
PB OUT
IC531
PB
PB SEL.
VCR IN
DVR/DVD IN
MONITOR OUT
DVD C/SW
DVD SURR
DVR OUT
DVR/DVD IN
VCR
IN/OUT
TV
DBS
TO
TUNER
AV
COMPULINK
DBS
VCR OUT
VCR IN
DVR OUT
DVR/DVD IN
MONITOR
HDMI
PORT0
HDMI
PORT1
J4503
PR
J6504
DVD_C,DVD_SW
DVD_SL/SR
DVRREC_L/R
J6503
DVR_L/R
VCRREC_L/R
J6502
VCR_L/R
TV_L/R
J6501
DBS_L/R
TU_L/R
CN505
TU_DATAI
TU_DATAO
TU_CLK,TU_CE
IC501
CPU
CN565
J505
J6511
J6512
J6513
Y,C,CVBS
J711
IC731
HDMI
RX
CSDA,CSCL
J721
TX_RST
TX_HPD
TX_INT
J751
IC751
HDMI
TX
Y
C
CV
SD0 to 2,LRCK
BCK,RX_SPDIF
RX_MUTE
IC532
PR SEL.
MUTE
T_MUTE
IC507
EEPROM
RC_SDA
RC_SCL
RC_WP
HP_RELAY
CN555
AVCLINK
IC522
SY SEL.
IC524
IC525
SC SEL.
IC527
CV SEL.
HDMI_SY
HDMY_SC,CV
MICON
BUS SW
IC743
BUS SW
PR OUT
VIDEO1
VIDEO4
HDMI_Y
HDMI_PB
HDMI_PR
Y OUT
C OUT
CV OUT
FW781FW782
CN771CN772
Y,Pb,Pr
IC761
HDMI
SUB
IC741
SOURCE
VIDEO1
VIDEO11
HDMI_Y
HDMI_PB
HDMI_PR
HDMI_Y
HDMI_PB
HDMI_PR
HDMI_CLK
HDMI_STS
HDMI_COM
HDMI_RDY
HDMI_RST
SDTV/HDTV
DECODER
GRAPHICS
DIGITIZER
IC782
SDRAM
VIDEO1
VIDEO11
IC502
L,R
6CH
SEL.
BD3813/3842 DA
BD3813/3842 CL
DA,CL
S_MUTE
L,R
SBWR_MUTE
FR_RELAY
C_RELAY
SURR_RELAY
SBK_RELAY
DSP_STATUS
DSP_READY
DSP_COMMAND
DSP_CLOCK
DSP_RESET
HP_RY
Q524
BCHANGE1
BCHANGE2
FAN_ON/OFF
FAN_ L
PROTECT
FREQ_CTRL
D+5V,B+5V
+/-7V,+9V
A+5V(DSP)
D+5V(DSP)
+5V(VIDEO)
+12V(RELAY)
HDMI_CLK
HDMI_STS
HDMI_COM
HDMI_READY
HDMI_RESET
CN504
CN762
RX_SPDIF
DSP_SPDF
Y,C,CVBS
Y,Pb,Pr
IC771
AD_OUT_Y0 to Y7
AD_OUT_CBCR0 to 7
VIDEO
&
RGB
AD_SDA,AD_SCL
AD_RST,IP_RST
DATA0 to 31,ADDR0 to 10
SDRAM_CLK,BA0,BA1,DQM
BUF_OUT_Y0 to Y7,Y0 to 7
BUFF_OUT_CBCR0 to 7,CBCR0 to 7
HDMI RX,TX,micom,HDMI ADC and i/p converter section
CN503
CN501
CN516
CN602
CN509
CN672
CN506
CN502
CN530
CN531
DIGITAL
CN540
DIGITAL
DIGITAL
CN552
AUDIO_SEL1 to 4
SD0 to 2,LRCK
RX_MUTE,BCK
IC772
BUFF.
IC781
DIGITAL
VIDEO
CONV.
Master volume section
L,R
DVD_SW
CN513
DVD_SL/SR
DVD_C
DSP_L/R
DSP_C,DSP_SW
DSP_SL/SR
CN521
CN683
CN682
CN681
J681 UN682
IN1
DSP.L
DSP.R
DSP.LS/RS
DSP.C
DSP.SW
DSP.SBL
DSP.SBR
DSP_IN_L
DSP_IN_R
DSPSTATUS,DSPREADY
DSPCLK,DSPRESET
DSPCOMMAND
RX0
RX1
IN2
UN683
RX2
IN3
CN651 CN652
CN732CN731
JS901
JS902
User control keys, system control and FL display section
IC504
IC503
6CH VOLUME
IC611 to IC614
IC621,IC622
IC632 to IC634
AMP.
IC651
IC652
AMP.
IC685,IC686
DATA S E L
& MPX
SD0 to 2
LRCK,BCK
RX6,TX
USB
TERMINAL
CN914
CN952
CN913
CN903
VOL1,VOL2,JOG1,JOG2
S901 to S906
Master clock section
M_CLOCK
CN523
FREQ_CTRL
-B, -B+12V
Q444,Q445
-B+12V REG
CN524
J504
SUBWOOFER
OUT
IC211 to IC214
Master clock GEN.
SUBWFR
AMP
CN522
MUTE
DA,CL
DSP_SBL/SBR
DA,CL
S_MUTE
SBWR_MUTE
IC508
AUDIO SOUND
PROCESSOR
DSP and digital signal input terminal section
IC610
AMP.
P_SL/SR
P_C/LFE
P_BCK
P_LRCK
A4+/B4+/-
IC601
IC602
AMP.
AUDIO_SEL1 to 4
HDMI_MUTE
AV COMPULINK
M_COMMAND,M_STATUS
M_CLK,M_RESET,M_BUSY
M_CS
IR DET.
D/A
IC903
AVC_IN/OUT
DAC_fs1
DAC_fs2
PD_DD
RST_DD
FL/FR,SL/SR
C/LFE,C_BCK
C_LRCK
D/A
DAC_fs3
DAC_fs4
PD_DD
RST_DD
IC620
IC630
D/A
FL/FR,SL/SR
C/LFE,C_BCK
C_LRCK
RX0,RX1,RX2,RX6,TX
J903
D+/-,VBUS
CN904
HEADPHONE_DET
Q910
REMOCON
IC902
KEY_IN1 to 3
DSP_A2 to A15,DSP_D0 to D15
DSP_CE0,DSP_ARE,DSP_AWE
DSP_AOE,DSP_BE0,DSP_BE1
SDRAM_CLK
IC664
SDRAM
DSP_A2 to A21
DSP_D0 to D15
ROM
IC671
DSP_CE1,DSP_AWE
DSP_AOE
IC697
8CH
CODEC
CPU
RX4
IC663
FLASH
LIN+/RIN+/-
CDIN
CDOUT
CCLK
D_CS
D_RST
CN661
CN961
USB_IN
HP_L
HP_R
SEG1 to 35
GRID1 to 15
FMAM_LED
USB_LED,TV_LED
IC901
DBS_LED,DVD_LED
VCR_LED,HDMI_LED
CPU
&
FL
DRV.
STANDBY_IND
STANDBY
C_LRCK
S_LRCK
C_BCK
S_BCK
FL/FR
SL/SR
C/LFE
SBL/SBR
SCK,MOSI
MISO
HD3,HD4
READY
CSDSP
DIGITAL OUT
CN905
J901
HEADPHONE
DISPLAY
D917 to D923
D907
LED
UN686
DI901
FL
F1,F1
-VPP
D+5V
IC661
DSP
TX
CN202
CN902
TO
FAN
CN201
M
F
P
CN222
F
P
L
R
FW240
CN351
CN102CN130 CN131 CN103
2-1
Regulator, DC-DC converter and digital power amplifier section
CN202
CN201
M_CLOCK
FREQ_CTRL
PROTECT
AMP_-B
AMP_-B+12V
PROTECT
Q281 to Q286
PROTECTOR
Lout_HP
Rout_HP
FER
TO
FAN
FL,FR,C
CN222
SL,SR
SBL,SBR
FREQ_CTRL
PROTECT
Lout_HP
Rout_HP
CN130
CN131
FW240
Lout_HP
Rout_HP
CN351
RY300
HP_RY
+12V_RY
FAN_ON/OFF
FAN_LOW
Q151,Q152
CN103
FAN
+12V_FAN
CN102
D+5V_Mi,FL1,FL2,VPP
M_CLOCK
+/-7V
Q154
Q153
REG
PWM modulator section
FL,FR
A.NFB_FL
CN302
CN301
FW323
CN313
CN402
CN401
VCHANGE_1,VCHANGE_2,M_CLOCK
+/-7V
A+5V_Vi
A+9V_Vi_Tu
A+5V_DSP
+12V_RY
D.NFB_FL
A.NFB_FR
D.NFB_FR
C
A.NFB_C
D.NFB_C
+/-7V
CN423
CN413
SL,SR
A.NFB_SL
+/-7V
D.NFB_SL
A.NFB_SR
D.NFB_SR
SBL,SBR
A.NFB_SBL
D.NFB_SBL
A.NFB_SBR
D.NFB_SBR
D+5V_Mi,D+5V_DSP
B+5V_Mi,POWER_ON
Q157,Q158
+/-7V REG
IC153
A+5V_Vi
REG
IC152
A+9V_Vi_Tu
REG
IC151
A+5V_DSP
REG
IC201
MODULATOR
IC801
MODULATOR
IC301
MODULATOR
IC401
MODULATOR
D+5V_Mi
B+5V_Mi
D+5V_Mi
Q156,Q176
D+5V_HDMI
Q155,Q171
D+5V_DSP
DCDC_+12
DCDC_-B+12
CN312CN311 CN412CN411
Q101
D+5V_Mi,B+5V_Mi
REG
D+5V_DSP
Q177
REG
CN107
CN117
Q172
REG
Q174
REG
Q175
REG
VPP
CN321
CN322
CN421
CN422
FRONT_L
FRONT_R
A.NFB_FL,D.NFB_FL
A.NFB_FR,D.NFB_FR
CENTER
SURROUND_L
SURROUND_R
A.NFB_SL,D.NFB_SL
A.NFB_SR,D.NFB_SR
SURRBACK_L
SURRBACK_R
A.NFB_SBL,D.NFB_SBL
A.NFB_SBR,D.NFB_SBR
POWER_ON
CN104 CN105
CN114 CN115
Q102
VPP REG.
A.NFB_C
D.NFB_C
PWM_V
Vout_DET
Q1101
Q1102
IC101
DCDC
converter
D1101
to
D1104
+B
-B
+12V
-B+12V
D111 ,D11 2
D119,D120
IC251
IC351
AMP
IC851
AMP
IC261
IC361
AMP
IC451
IC461
AMP
AC_DET_1
D101
to
D104
POWER_ON
S2
S2
S3
Speaker terminal section
Lout
CN251
CN265
Rout
Cout
RY295
RY895
FRONT_RY
CENTER_RY
CN465
FRONT_RY
CENTER_RY
CN252
CN106C N111CN101CN152
SLout
SRout
CN262
SBLout
SBRout
PWM_V,Vout_DET
M_CLOCK
AC_DET_1
CN151
VCHANGE_1
VCHANGE_2
S1
CN206CN211
S2
S3
Power
trans.
RY391
RY491
SURR_RY
SURRBACK_RY
IC111 to IC113, IC115
CN209FW451
FRONT_RY
CENTER_RY
SURR_RY
SURRBACK_RY
DCDC converter
control
Primary section
FW121
AC
T102
Trans.
POWER_ON
Q1001
RY101
ST295
FRONT
&
CENTER
ST292
SURROUND
&
SURRBACK
CN120
Main
plug
2-2
Standard schematic diagrams
Primary section
!
TH.FUSE
LVA10579-12
PW157
PW156
PW155
PW154
PW153
PW152
PW151
LVA10579-13
S1
1
COM
2
S1
3
(SHEET 2)
CN211
QJK012-034003-E
TO CN111 OF LVA10578-1
PW11 C121
0.1
PW13
S2
1
2
COM
3
4
S2
5
6
(SHEET 2)
S3
7
S3
8
CN206
TO CN106 OF LVA10578-1
WJK0208-002A-E
J
54
AC
1
AC
of LVA10578-1to CN101
(SHEET 2)
2
3
4
RY+9V
POWER_ON
FW121
9
!
T102
QQT0478-001
Parts are safety assurance parts.
When replacing those parts make
sure to use the specified one.
1
B142
QUY158-150Y
FC113
QNG0020-001Z
43
D1001
1SS133-T2
C1001
4700p
21
F103
!
!
RY101
QSK0128-001
FC103
QNG0020-001Z
!
!
C1002
0.22
Q1001
KRC105S-X
R1002
3.3M
R1001
3.3M
PW103
PW104
!
MAINS
PLUG
CN120
LIVE/
BRN
2
1
NEUTRAL/
BLU
123
!
C1004
0.001
!
QNZ0136-001Z
QGA7901C1-02
EP151
!
C1003
0.001
!
LVA10579-5
J
F103
QMF51U1-6R3-J8
F104
-
VERSION CODES
J ;U.S.A.
C ;CANADA
2-3
VOLTAGE MEASUREMENT CONDITION
POWER ON
SOURCE FM(NO SIGNAL)
SURROUND OFF
VOLUME 0
SHEET
NUMBER
1
2
3
4
5
6
7
8
9
10
11 HDMI ADC / i/p CONVERTER
CIRCUIT DISCRIPTION
PRIMARY
REGULATOR / DC-DC CONVERTER
PWM MODULATOR / MASTER CLOCK
DIGITAL POWER AMP / SPKEAKER TERMINAL
AUDIO,VIDEO SIGNAL INPUT / SYSTEM CONTROL LSI
COMPONENT VIDEO IN/OUT
MASTER VOLUME IC
USER CONTROL KEYS / SYSTEM CONTROL IC / FL DISPLAY
DSP IC / DIGITAL SIGNAL INPUT TERMINAL
HDMI RX / TX / MICOM
SHEET 1
2-4
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