SERVICE MANUAL
AUDIO/VIDEO CONTROL RECEIVER
No.20881
Oct. 2000
COPYRIGHT
2000 VICTOR COMPANY OF JAPAN, LTD.
RX-7001PGD
A
UF
US
Australia
China
Singapore
Area Suffix
Contents
Safety precautions --------------------------------------------------------1-2
Disassembly method -----------------------------------------------------1-3
Adjustment method -------------------------------------------------------1-9
Description of major ICs -------------------------------------------------1-10
+
RX-7001P
AUDIO/VIDEO CONTROL RECEIVER
SPEAKERS
12
PHONES
SURROUND ON/OFF
DSP MODE
BALANCE/SURROUND
ADJUST
SEA MODE
SEA ADJUST
SETTING
MULTI JOG
MASTER VOLUME
SOURCE SELECTOR
THEATER
LIVE CLUB
DANCE CLUB
HALL
PAVILION
INPUT
ANALOG/DIGITAL
FM/AM TUNING
TUNER PRESET
TUNER/SEA MEMORY
FM MODE
DVD
TV SOUND/DBS
PHONO
TAPE/MD
VCR
FM
AM
CD
SOUND SELECT
INPUT ATT.
BASS BOOST ONETOUCHOPERATION
SOURCENAME
COMPULINK
Remote
STANDBY
STANDBY/ON
RM-SRX7001P
REMOTE CONTROL
CONTROL
CHANNEL
VOLUME
TV VOL
STOP
PAUSE
FF/
/REW
VCR
TV/VIDEO
TAPE/MD
MUTING
REC
PLAY
DVD
DVD MUILTI
CD
TAPE/MD
TV/DBS
PHONO
FM/AM
VCR
ANALOG/DIGITAL
SURROUND
CENTER
SURROUND
TEST
REAR-L
CD-DISC
MODE
ON/OFF
EFFECT
REAR-R
SOUND
SEA MODE
SUBWOOFER
RETURN
SET
MENU
AUDIO/
TV/VCR
EXIT
TEXT
DISPLAY
SLEEP
12
3
45
6
7/P
89
10
0
+10
100+
FM MODE
CATV/DBS
MENU
MENU
ENTER
ENTER
TV/CATV/DBS
VCR
TUNING
DOWN
UP
RX-7001PGD
RX-7001PGD
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 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 currnet 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 eachexposed metal
part, particularly any exposed metal part having a
return path to the chassis, and meausre 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.).
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.
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
! 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.
1-2
RX-7001PGD
1-3
Remove the four 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 twenty-eight screws E
attaching the
each boards to the rear panel on the back of the
body.
Remove the three screws F attaching the rear panel
on the back of the body.
1.
2.
3.
Removing the rear panel (See Fig.4)
Prior to performing the following procedure, remove
the top cover.
Disconnect the card wire from connector CN400 on
the main board and CN402 on the power supply
board in the front panel assembly.
Cut off the tie band fixing the harness.
Disconnect the harness from connector CN202 on
the video board.
Remove the three screws C
attaching the front
panel assembly.
Remove the five 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)
Fig.1
Fig.2
Fig.3
Fig.4
A 2
A 2
B
Top cover
C
Power supply
board
CN402
Main board
CN400
Tie band
Video board
CN202
D
E 3
E 3
E 5
E 3
E 3
E 2 E
E
F
E
E
F
F
Cord stopper
C
Front panel assembly
Front panel assembly
D
Rear panel
E
RX-7001PGD
1-4
Prior to performing the following procedure, remove
the top cover and the rear panel.
Cut off the tie band fixing the harness.
Disconnect the harness from connector CN202 on
the video board.
Disconnect the tuner board from connector CN101
on the main board.
Disconnect the SEA board and the audio board from
connector CN452, CN301and CN302 on the main
board.
Disconnect the V-audio board from connector CN303
on the main board.
Disconnect the relay board 4.Then, disconnect the
video board and the S-video board from connector
CN201 and CN241 on the main board.
Disconnect the DSP board from connector CN501
and CN601 on the main board while removing the
DSP board from the bracket fixing the lower part of
the DSP board at the same time.
Disconnect the compulink board from connector
CN255 on the main board.
1.
2.
3.
4.
5.
6.
7.
8.
Removing each board connected to the
rear side of the main board
(See Fig.5 to 9)
Fig.5
Fig.6
Fig.7
Fig.8
Fig.8
Fig.8
Fig.9
CN202
Main board
CN101
Tie band
V-audio board
S-video board
Video board
Tuner board
Audio board
SEA board
Main board
CN452
Main board
CN302,CN301
Audio board
V-audio board
Main board
CN303
CN301
CN452
CN302
Relay board 4
S-video board
Video board
Main board
CN241
CN303 Main board
CN201
Compulink board
Main board
CN255
Main board
CN601
DSP board
Main board
CN501
CN241
CN201
Bracket
RX-7001PGD
1-5
Prior to performing the following procedure, remove
the top cover and the rear panel.
Removing the main board / regulator
board (See Fig.10 to 12)
It is not necessary to remove the
boards connected to the back of the
main board. But to disassemble the
main board and the power supply
board efficiently, remove them.
ATTENTION:
Disconnect the card wire from connector CN400 on
the main board.
Cut off the three tie bands fixing the harnesses.
Disconnect the harness from connector CN811 on
the power transformer board.
Disconnect the relay board 1,2 and 3 from the main
board and the power supply board.
Disconnect the harness from connector CN704,
CN821, CN901, CN711, CN712, CN931 and CN932.
Remove the screw G attaching the regulator board
to the heat sink cover.
Remove the four screws H attaching the main board
to the heat sink cover.
Remove the five screws I and the screw J attaching
the main board to the chassis base (The resistor
board will come off at the same time).
1.
2.
3.
4.
5.
6.
7.
8.
Prior to performing the following procedure, remove
the top cover.
Disconnect the harness from connector CN881 on
the resistor board.
Remove the screw J attaching the resistor board.
1.
2.
Removing the resistor board (See Fig.13)
Fig.10
Fig.11
Fig.12
Fig.13
Power supply
board
Tie band
Relay board 1
Main board
CN400
Relay board 2
Tie band
Main board
Relay
board 3
CN811
CN932 CN961
CN931
CN712
CN711
CN901
CN821 CN704
HH
G
Regulator board
Resistor board
I
J
I
I
Main board
Power
transformer
Power
transformer
J
Resistor board
CN881
Main board
CN953