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SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
No.21019
Sep. 2001
COPYRIGHT
2001 VICTOR COMPANY OF JAPAN, LTD.
RX-DP9VBK
RX-DP9VSL
RX-DP9VBK/RX-DP9VSL
Area Suffix
J
C
U.S.A.
Canada
STANDBY / ON
STANDBY
PHONES
AUDIO/VIDEO CONTROL RECEIVER
DIMMER
CC CONVERTER
DOOR
UP
DOOR
DOWN
MASTER VOLUME
RX-DP9V
DIGITAL
DIGITAL
SURROUND
CHANNEL
TV/VIDEO
MUTING
DVD
DVD MULTI
CD
CDR
PHONO
TAPE/MD
AM
ANALOG/DIGITAL
EFFECT
ROOM SIZE
SOUND
TEST
LINE DIRECT
CC CONVERTER
SLEEP
DIMMER
FM MODE
DSP
THX
SURROUND
RETURN
100+
ON/OFF
ON/OFF
MODE
WALL
INPUT
LIVENESS
SET
SETUP
MENU
ADJUST
MENU
DVD
MENU
EXIT
TEXT
DISPLAY
123
456
7/P
89
10
+
10
0
TV VOL
VOLUME
TUNING
STOP
PAUSE
FF/
/ REW
REC
PLAY
DOWN
UP
RM-SRXDP9J
REMOTE CONTROL
A/V CONTROL RECEIVER
VCR 1
VCR 2
FM
VIDEO
TV/DBS
TV
CATV/
DBS
S-VIDEO
VIDEO
LÑAUDIOÑR
VIDEO
STANDBY/ON
STANDBY/ON
STANDBY
TV/CATV/DBS
VCR 1
ON
Contents
Safety precautions --------------------------------------------------------1-2
Importance administering point on the safety --------------------- 1-3
Disassembly method -----------------------------------------------------1-4
Adjustment method -------------------------------------------------------1-12
Description of major ICs -------------------------------------------------1-14~33
Model
Color
RX-DP9VSL
RX-DP9VBK
Black
Silver


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RX-DP9VBK/RX-DP9VSL
1-2
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 manufacturer's 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 re-assembling.
5. Leakage current check (Electrical shock hazard testing)
After re-assembling 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, 1,000 ohms per volt or more
sensitivity in the following manner. Connect a 1,500
10W resistor paralleled by a 0.15 F AC-type capacitor
between an exposed 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. 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.
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
!
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.
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.
(Except the J&C version)


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RX-DP9VBK/RX-DP9VSL
1-3
Caution: For continued protection against risk of
fire, replace only with same type 1A/125V for
F41, 2A/125V for F61, F62 and F42, 8A/ 125V for F21.
This symbol specifies type of fast operating fuse.
Precaution: Pour eviter risques de feux, remplacez
le fusible de surete de et F41 comme le meme type
que 1A/125V, et 2A/125V pour F61, F62 et F42,
8A/125V pour F21. Ce sont des fusibles suretes qui
functionnes rapide.
^
Importance administering point on the safety
C21
C22
C23
C24
C25
C26
C27
PW23
PW21
CN25
B309
PW22
D21
D22
D23
D24
D25
D26
D27
B112
FC25
FC26
Q21
Q22
Q23
R21
R22
R23
R24
R25
RY21
T21
TA1
TA2
B113
B114
EP21
J21
FC24
FC23
B115
PW24
B108
B109
B511
B110
B111
B307
EP22
WR26
FC22
FC21
C41
C42
C43
C44
C45
C46
C47
C48
C49
C50
C51
C52
C53
C54
C55
C56
CN41
B116
D41
D42
D43
D44
D45
D52
D47
D48
D49
D50
D51
D46
D53
D55
D56
FC43
FC44
Q41
Q42
Q50
Q49
Q45
Q46
Q47
Q48
WR44
Q51
Q52
Q53
Q54
R41
R42
R43
R44
R45
R46
R47
R48
R49
R50
R51
R52
R53
T41
TH41
HS41
HS42
B118
B117
B119
B308
B204
B203
R54
R55
Q55
Q56
B120
TW41
CN42
CN43
FC42
FC41
C61
C62
C63
C64
C65
C66
C67
C68
C69
C70
C71
C72
C73
C74
CN64
D61
D62
D63
D64
D65
D66
D67
D68
D69
D70
D71
FC61
FC62
FC63
FC64
Q61
Q62
Q63
R61
R62
R63
R64
R65
R66
R67
R68
R69
R70
R71
HS61
HS62
HS63
CN63
CN61
EP61
CN65
Q64
Q65
Q66
D72
D73
R72
R73
C75
C76
B306
R74
CN66
CN67
B130
B206
2A
125V
2A 125V
2A 125V
LVA10215-A3
LVA10215-A4
LVA10215-A2
8A
125V
1A 125V
F41
F42
F21
F61
F62


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RX-DP9VBK/RX-DP9VSL
1-4
Remove the eight screws A attaching the top cover
on both sides of the body.
Remove the three screws B on the back of the body.
Remove the top cover from behind in the direction of
the arrow while pulling both sides outward.
1.
2.
3.
Disassembly method
Removing the top cover
(See Fig.1)
Prior to performing the following procedure, remove
the top cover.
Remove the power cord stopper from the rear panel
by moving it in the direction of the arrow.
Remove the thirty screws E attaching the each
boards to the rear panel on the back of the body.
Remove the thirteen screws F attaching the rear
panel on the back of the body and bottom.
1.
2.
3.
Removing the rear panel
(See Fig.4)
Prior to performing the following procedure, remove
the top cover.
Cut off the tie band fixing the harness.
Disconnect the harness from the connector CN971,
CN977, CN983 and CN985 on the front control
board (see fig.5) and CN973 on the front AV in board
(see Front panel assembly section/ fig.2).
Remove the screws a and b, and remove each earth
wires.
Remove the three screws C attaching the front panel
assembly.
Remove the four screws D attaching the front panel
assembly on the bottom of the body. Detach the front
panel assembly toward the front.
1.
2.
3.
4.
5.
Removing the front panel assembly
(See Fig.2 and 3)
Removing the tuner unit (See Fig.2 and 4)
Prior to performing the following procedure, remove
the top cover.
Disconnect the card wire from the connector CN1 on
the tuner unit.
Remove the two screws E' attaching the tuner unit to
the rear panel.
1.
2.
Fig.1
Fig.2
Fig.3
Fig.4
A 4
A 4
B
Top cover
C
a
(fixing the
earth wire)
b
(fixing the
earth wire)
Tie band
Tuner unit
CN1
D
E
F
E
FF
F
Power cord
stopper
C
Front panel assembly
Front panel assembly
D
Rear panel
E
E
E'
E
E


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RX-DP9VBK/RX-DP9VSL
1-5
Prior to performing the following procedure, remove
the top cover.
Disconnect the card wires and harness from
connector CN963, CN964 and CN981 on the system
control board.
Cut off the tie bands fixing the harnesses.
Disconnect the harness from connector CN43 on the
power supply 2 board and CN25 on the power/ fuse
board.
Disconnect the connector CN324 on the audio signal
2 board and CN205, CN234 on the audio signal 1
board.
Remove the three plastic rivet.
1.
2.
3.
4.
5.
Removing the system control board
(See Fig.5 and 6)
Prior to performing the following procedure, remove
the top cover and the rear panel.
Disconnect the connector CN631 on the DSP board.
Disconnect the connector CN204 on the audio signal
1 board.
Removing the two plastic rivet and disconnect the
connector CN633 on the DSP board.
1.
2.
3.
Removing the DSP board
(See Fig.6 and 7)
Prior to performing the following procedure, remove
the top cover and the rear panel.
Removing the screw G attaching the shield cover.
Shift the shield cover before, and pull upward.
1.
2.
Removing the shield cover
(See Fig.8)
Fig.5
Fig.6
Fig.8
CN324
CN963
CN981
CN971
CN977
CN983
CN964
CN985
CN25
CN234
CN205
CN43
Fig.7
Shield cover
Power/ fuse
board
Power supply 2 board
Audio signal 1 board
System control board
Audio signal 2 board
Plastic rivet
Plastic rivet
CN633
CN631
Plastic rivet
Plastic rivet
DSP board
CN204
G
Tie band
Tie band
Tie band
Tie band