JVC RX-D212BJ, RX-D212BC Service manual
SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
MB52520065
RX-D211SJ,RX-D212BJ,
RX-D212BC
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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-5
3 DISASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-6
4 ADJUSTMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-14
5 TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-15
COPYRIGHT © 2006 Victor Company of Japan, Limited
No.MB525
2006/5
SPECIFICATION
Amplifier
Output Power At stereo operation Front channels 110 W per channel, min. RMS, driven into 6
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
1 kHz with no more than 0.8% total harmonic distortion.
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/Impedance DVR/DVD, VCR, DBS, TV 300 mV/47 k
Audio Input (DIGITAL IN)* Coaxial: DIGITAL IN 1(DVR/DVD) 0.5 V(p-p)/75 Ω
Optical: DIGITAL IN 2(DBS), 3(VCR) -21 dBm to -15 dBm (660 nm ±30 nm)
USB USB DIGITAL
Audio Output Level DVR, VCR 300 mV
Signal-to-Noise Ratio ('66 IHF/'78 IHF) 80 dB/70 dB
Frequency Response (6
Bass Boost +4 dB ±1 dB at 100 Hz
Equalization (at DSP operation) Center frequency 63 Hz, 250 Hz, 1 kHz, 4 kHz, 16 kHz
Video Video Input Sensitivity/Impedance Composite video: DVR/DVD, VCR, DBS 1 V(p-p)/75
Video Output Level/Impedance Composite video: DVR, VCR, MONITOR OUT 1 V(p-p)/75 Ω
Synchronization Negative
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
Tuning Range 530 kHz to 1 710 kHz
Power Requirements AC 120 V , 60 Hz
Power Consumption 150 W/200 VA (at operation)
Dimensions (W
Mass 6.7 kg (14.8 lbs)
× H × D) 435 mm × 91.5 mm × 360 mm
Ω) 20 Hz to 20 kHz (±1 dB)
Control range ±8 dB
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
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
FM tuner (IHF)
Stereo 37.5 dBf (20.5
AM tuner
General
no more than 0.8% total harmonic distortion.
1 kHz, with no more than 0.8% total harmonic distortion.
1 kHz, with no more than 0.8% total harmonic distortion.
Ω
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)
(17 3/16 inches
× 3 5/8 inches × 14 3/16 inches)
Ω at 1 kHz, with
Ω at
Ω at
Ω at
Ω at
* 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.MB525)
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.MB525)1-3
1.5 Importance admistering point on the safety
EP102
CN106
FC102
C114
C108
C109
R107
CN102
D103
EP152
C101
D104
C102
FW121
D108
D107
Q101
D101
B101
D102
R101
R102
B152
B103
R106
C104
B104
R103
B102
CN202
R105
B2700
D111
D112
B2702
FC111
D120
FC101
D110
Q103
B2699
R104
C152
B2698
D109
D119
C151
C110
TH101
FC112
D115
D113
C113
B2673
R108
Q102
C112
FC114 FC104
B141
T102
RY101
B181
W102
HS153
IC153
C159
R158
HS151
B2697
B2696
IC151
C111
R152
D114
FW116
B142
FC113
B151
C1001
HS152
IC152
TH274
C156
B2693
R153
R166
B2666
B2721
B2694
B2672
C154
B2692
R151
B2691
B2711
W101
C1002
FC103
R1002
C165
HS154
B2674
IC154
C169
CN122
FW117
B145
HS171
FW104
B2671
Q171
R187
C166
R188
R165
R167
B2685
L101
B143
CN121
B2701
B2681
R189
R190
B2664
B2662
B2665
B2684
B2661
B2682
B2683
D161
D162
B2663
EP151
C1004
C1005
CN120
B144
R1001
C1003
Full Fuse Replacement Marking
Graphic symbol mark
(This symbol means fast blow type fuse.)
should be read as follows ;
FUSE CAUTION
FOR CONTINUED PROTECTION AGAINST RISK
OF FIRE, REPLACE ONLY WITH SAME TYPE
AND RATING OF FUSES ;
F101 : 2A 125V
F102 : 2A 125V
F103 : 6.3A 125V
Marquage Pour Le Remplacement
Complet De Fusible
Le symbole graphique (Ce symbole signifie
fusible de type a fusion rapide.)
^
doit etre interprete comme suit ;
PRECAUTIONS SUR LES FUSIBLES
POUR UNE PROTECTION CONTINUE CONTRE
DES RISQUES D'INCENDIE, REMPLACER
SEULEMENT PAR UN FUSIBLE DU MEME TYPE ;
F101 : 2A 125V
F102 : 2A 125V
F103 : 6.3A 125V
1-4 (No.MB525)
SECTION 2
SPECIFIC SERVICE INSTRUCTIONS
This service manual does not describe SPECIFIC SERVICE INSTRUCTIONS.
(No.MB525)1-5
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 six
screws B attaching the top cover. (See Fig.2)
(3) Remove the top cover in the direction of the arrow. (See
Fig.1)
3.1.2 Removing the tuner
(See Fig.3)
• 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 C attaching the tuner to the rear panel and then
take out the tuner.
on the tuner.
Top cover
A
Fig.1
TunerDSP board XM board
3.1.3 Removing the XM board
(See Fig.3)
• Remove the top cover.
Reference:
Remove the tie band bundling the wires.
(1) From the back side of the main body, remove the two
screws D from the rear panel.
(2) From the top side of the main body, disconnect the wire
from the connector CN662
(3) Disconnect the card wire from the connector CN538 on the
XM board.
(4) Take out the XM board from the main body.
on the DSP board.
CN662 CN538
D C
Fig.3
CN1
Rear panel
1-6 (No.MB525)
3.1.4 Removing the fan motor
(See Fig.4)
• Remove the top cover.
Reference:
Remove the tie band bundling the wires.
(1) From the top side of the main body, disconnect the wire
from the connector CN103
(2) Remove the three screws E and take out the fan motor as-
sembly.
(3) Remove the two screws F attaching the fan motor to the fan
bracket.
3.1.5 Removing the AV compulink board
(See Fig.4)
• Remove the top cover.
(1) From the top side of the main body, disconnect the wire
from the connector CN531
(2) From the back side of the main body, remove the screw G
and take out the AV compulink board.
3.1.6 Removing the rear panel
(See Fig.5)
• Remove the top cover, tuner, XM board and AV compulink
board.
(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 re-
move the power cord.
(2) Remove the twenty two screws H attaching the rear panel.
(3) Take out the rear panel from the main body.
on the main amplifier board.
on the AV compulink board.
Fan motor
Fan motor
F
Power cord
F
Rear panel
Strain relief
Main amplifier boardFan bracket
G
Fig.4
AV compulink board
Rear panel
HH
CN103
E
CN531
H
Fig.5
(No.MB525)1-7
3.1.7 Removing the DSP board
(See Fig.6)
• Remove the top cover, tuner, XM board, AV compulink board
and rear panel.
(1) From the top side of the main body, remove the screw J at-
taching the DSP board.
(2) Disconnect the connectors (CN661
board from the volume board.
Note:
When removing the DSP board, take care not to break
the claw of the connector on it.
(3) Take out the DSP board and disconnect the wires from the
connector CN681
(4) Take out the DSP board from the main body.
3.1.8 Removing the video board
(See Fig.6)
• Remove the top cover, tuner, XM board, AV compulink board
and rear panel.
(1) From the top side of the main body, disconnect the wire
from the connector CN533
(2) Disconnect the connector CN525 on the video board from
the connect board.
(3) Take out the video board from the main body.
3.1.9 Removing the speaker terminal 1 and 2 board
(See Fig.7)
• Remove the top cover, tuner, XM board, AV compulink board
and rear panel.
(1) From the top side of the main body, disconnect the wires
from the connectors (CN261
minal 1 board.
(2) Disconnect the wires from the connectors (CN205
CN263) on the speaker terminal 2 board.
(3) Take out the speaker terminal 1 and 2 board from the main
body.
on the forward side of the DSP board.
on the video board.
, CN683) on the DSP
, CN461) on the speaker ter-
, CN262,
Volume board
Connect board
CN525
CN533
Video board
DSP board
CN263
Speaker terminal 2 board
CN262
CN205
J
CN681
CN683
Fig.6
CN461
CN261
Speaker terminal 1 board
CN661
3.1.10 Removing the power transformer
(See Fig.8)
• Remove the top cover.
Reference:
Remove the tie bands bundling the wires.
(1) From the top side of the main body, disconnect the wires
from the connector CN121
(2) Disconnect the wires from the connector CN106 on the
regulator board.
(3) Disconnect the wires from the connector CN111
main amplifier board.
(4) Remove the four screws K and take out the power trans-
former from the main body.
1-8 (No.MB525)
on the primary board.
on the
Fig.7
Primary board
CN121
Power transformer
K
CN106
Regulator board Main amplifier board
Fig.8
CN111
3.1.11 Removing the primary board
(See Fig.9)
• Remove the top cover.
Reference:
Remove the tie band bundling the wires.
(1) From the top side of the main board, remove the wires from
the connectors (CN120
(2) Disconnect the wires from the connector CN102
regulator board.
(3) Remove the two screws M attaching the primary board.
(4) Take out the primary board from the main body.
3.1.12 Removing the regulator board
(See Fig.9)
• Remove the top cover and video board.
Reference:
Remove the tie band bundling the wires.
(1) From the top side of the main board, remove the wires from
the connectors (CN106
board.
(2) Disconnect the wires from the connectors (CN506
on the input board.
(3) Disconnect the wire from the connector CN105
amplifier board.
(4) Remove the four screws N attaching the regulator board.
(5) Take out the regulator board from the main body.
, CN121) on the primary board.
on the
, CN102, CN122) on the regulator
, CN507)
on the main
CN120
CN106
CN122
CN102
N
M
CN121
N
CN506
Primary board
M
N
CN507
Fig.9
Main amplifier board
CN111
CN105
Regulator board
Input board
(No.MB525)1-9
3.1.13 Removing the volume board
(See Fig.10)
• Remove the top cover, tuner, XM board, AV compulink board,
rear panel, DSP board and video board.
(1) From the top side of the main body, disconnect the connec-
tor CN413
board.
(2) Disconnect the connector CN503
the volume board and then take out the volume board in an
upward direction.
Note:
When removing the volume board, take care not to break the
claws of the connectors on the main amplifier board and input
board.
3.1.14 Removing the connect board
(See Fig.10)
• Remove the top cover, tuner, XM board, AV compulink board,
rear panel, DSP board and video board.
(1) From the top side of the main body, disconnect the connec-
tor CN524
(2) Take out the connect board in an upward direction.
Note:
When removing the connect board, take care not to break the
claws of the connectors on the input board.
on the main amplifier board from the volume
on the input board from
on the input board from the connect board.
Connect board
CN507
CN506
CN524
P
Input board
CN508
P
Fig.10
Volume board
CN413
P
CN509
CN503
CN205
Speaker terminal
2 board
3.1.15 Removing the input board
(See Fig.10)
• Remove the top cover, tuner, XM board, AV compulink board,
rear panel, DSP board, video board and volume board.
Reference:
Remove the tie band bundling the wires.
(1) From the top side of the main body, disconnect the wires
from the connectors (CN506
the input board.
(2) Disconnect the wire from the connector CN205
speaker terminal 2 board.
(3) Remove the three screws P and take out the input board
from the main body.
, CN507, CN508, CN509) on
on the
1-10 (No.MB525)
3.1.16 Removing the main amplifier board
(See Figs.11 and 12)
• Remove the top cover, tuner, XM board, AV compulink board,
rear panel, DSP board, video board and volume board.
(1) From the top side of the main body, disconnect the wires
from the connectors (CN261
speaker terminal 1 and 2 board. (See Fig.11)
Reference:
Remove the tie bands bundling the wires.
(2) Disconnect the wires from the connectors (CN105
on the main amplifier board. (See Fig.11)
(3) Disconnect the wire from the connector CN509
board. (See Fig.11)
(4) Disconnect the wires from the connectors (CN911
on the front input board. (See Fig.11)
(5) Remove the two screws Q and four screws R attaching the
main amplifier board. (See Fig.12)
(6) Take out the main amplifier board with the regulator board
from the main body. (See Fig.12)
, CN262, CN263) on the
, CN111)
on the input
, CN921)
CN105
Main amplifier board
CN111
Front input board
CN921
CN911
3.1.17 Removing the regulator board
(See Fig.12)
• Remove the top cover.
(1) From the top side of the main amplifier board, disconnect
the wire from the connector CN204
board.
(2) Remove the two screws S attaching the regulator board
from the heat sink.
on the main amplifier
CN509
Input board
CN262,CN263
Speaker terminal 2 board
Regulator board
Q
Main amplifier board
Speaker terminal 1 board
CN261
Fig.11
CN204
SS
Q
R
Fig.12
(No.MB525)1-11
3.1.18 Removing the heat sink
(See Fig.13)
• Remove the top cover, tuner, XM board, AV compulink board,
rear panel, DSP board, video board, volume board and main
amplifier board.
From the forward side of the main amplifier board, remove the
two screws T and remove the heat sink.
Heat sink
3.1.19 Removing the front panel assembly
(See Figs.14 and 15)
• Remove the top cover.
Reference:
Remove the tie bands and wire holder bundling the wires.
(1) From the top side of the main body, disconnect the card
wire from the connector CN102
(See Fig.14)
(2) Disconnect the wire from the connector CN508
board. (See Fig.14)
(3) Remove the two screws U and three screws V attaching
the front panel assembly. (See Fig.14)
(4) Disconnect the wires from the connectors (CN911
on the front input board. (See Fig.14)
(5) From the bottom side of the main body, remove the four
screws W attaching the front panel assembly. (See Fig.15)
(6) Release the joints a and remove the front panel assembly
in the direction of the arrow. (See Fig.15)
on the regulator board.
on the input
, CN921)
T
Main amplifier board
V
CN102
Regulator board
Input board
Fig.13
Front panel assembly
VU
CN508
T
Front input board
CN911
CN921
Front panel assembly
W
Fig.14
W
a
Fig.15
1-12 (No.MB525)
3.1.20 Removing the front input board
(See Fig.16)
• Remove the top cover and front panel assembly.
From the inside of the front panel assembly, remove the two
screws X attaching the front input board.
3.1.21 Removing the JOG board
(See Figs.16 and 17)
• Remove the top cover and front panel assembly.
(1) From the inside of the front panel assembly, remove the
four screws Y attaching the JOG board. (See Fig.16.)
(2) Take out the JOG board while lifting it from the front panel
assembly little by little.
Reference:
The rotary knobs are removed from the front side simultaneously. (See Fig.17)
(3) From the forward side of the JOG board, disconnect the
wire from the connector CN913
3.1.22 Removing the FL board
(See Fig.18)
• Remove the top cover, front panel assembly and JOG board.
From the inside of the front panel assembly, remove the eight
screws Z and take out the FL board.
. (See Fig.16)
Front panel assembly
CN913
Y
Y
JOG board
Y
Front panel assembly
Front panel assembly
Z
Front input board
Fig.16
Rotary knob
Fig.17
FL board
FL board
X
Z
Z
Z
Fig.18
(No.MB525)1-13
SECTION 4
ADJUSTMENT
This service manual does not describe ADJUSTMENT.
1-14 (No.MB525)
SECTION 5
TROUBLESHOOTING
This service manual does not describe TROUBLESHOOTING.
(No.MB525)1-15
Victor Company of Japan, Limited
Audio/Video Systems Category 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan
(No.MB525)
Printed in Japan
VPT
SCHEMATIC DIAGRAMS
AUDIO/VIDEO CONTROL RECEIVER
RX-D211SJ,RX-D212BJ,RX-D212BC
CD-ROM No.SML200605
Lead free solder used in the board (material : Sn-Ag-Cu, melting point : 219 Centigrade)
Contents
Block diagrams
Standard schematic diagrams
Printed circuit boards
COPYRIGHT 2006 Victor Company of Japan, Limited.
2-1
2-2
2-12 to 17
No.MB525SCH
2006/5
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.
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