Safety precautions --------------------------------------------------------1-2
Disassembly method -----------------------------------------------------1-3
Adjustment method -------------------------------------------------------1-8
Description of major ICs -------------------------------------------------1-9 19
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
No.20938
Apr. 2001
http://getMANUAL.com
RX-7010RBK/RX-7012RSL
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.).
0.15 F AC TYPE
1500 10W
Good earth ground
AC VOLTMETER
(Having 1000
ohms/volts,
or more sensitivity)
Place this
probe on
each exposed
metal part.
!
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.
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 JC version)
1-2
RX-7010RBK/RX-7012RSL
Disassembly method
Removing the top cover (See Fig.1)
1.
Remove the four screws A attaching the top cover
on both sides of the body.
2.
Remove the three screws B on the back of the body.
3.
Remove the top cover from behind in the direction of
the arrow while pulling both sides outward.
Removing the front panel assembly
(See Fig.2 and 3)
Prior to performing the following procedure, remove
the top cover.
1.
Disconnect the card wire from connector CN402 on
the audio board and CN201 on the power supply
board in the front panel assembly.
2.
Cut off the tie band fixing the harness.
Tie band
Main
board
CN402
Top cover
A
2
A
B
2
C
Fig.1
Front panel assembly
C
CN201
Power supply
board
3.
Remove the three screws C attaching the front
panel assembly.
4.
Remove the four screws D attaching the front panel
assembly on the bottom of the body. Detach the front
panel assembly toward the front.
Removing the rear panel (See Fig.4)
Prior to performing the following procedure, remove
the top cover.
1.
Remove the power cord stopper from the rear panel
by moving it in the direction of the arrow.
2.
Remove the twenty seven screws E attaching the
each boards to the rear panel on the back of the
body.
3.
Remove the four screws F attaching the rear panel
on the back of the body.
Audio board
E
E
F
D
E
E
Rear panel
Fig.2
Front panel assembly
Fig.3
E
E
F
D
Cord stopper
E
F
F
Fig.4
1-3
RX-7010RBK/RX-7012RSL
Removing each board connected to the
rear side of the audio board
(See Fig.5 to 8)
Prior to performing the following procedure, remove
the top cover and the rear panel.
1.
Cut off the tie band fixing the harness.
Audio
board
Tie band
Tie band
CN411
CN412
2.
Disconnect the DSP board from connector CN481 on
the audio board.
3.
Disconnect the audio input board, DVD board Video
board and the S video board from connector CN421,
CN431,CN441 and CN461 on the audio board.
4.
Disconnect the tuner board from connector CN411
and CN412 on the audio board.
DSP
board
CN481
CN421
Audio
input
board
CN431
DVD
board
CN481
Video
board
DSP board
CN441
S Video
board
Fig.5
Tie band
Tuner
board
CN461
CN421
Tie band
CN431
Fig.8
CN441
CN461
Tuner
board
CN411
CN412
Audio
input
board
CN421
Fig.6
DVD
board
CN431
Fig.7
Video
board
CN441
S Video
board
CN461
1-4
Removing the audio board (See Fig.9)
Prior to performing the following procedure, remove
the top cover and the rear panel.
1.
Disconnect the card wire from connector CN402 on
the audio board.
2.
Disconnect the relay board from the audio board and
the power supply board. (CN291,CN491)
3.
Disconnect the harness from connector CN473,
CN471, CN472, CN403 and CN385.
4.
Remove the three screws G attaching the audio
board assembly.
5.
Remove the screw H attaching the audio board
assembly.
CN473
G
CN402
G
Audio board
CN471
CN472
CN403
CN385
RX-7010RBK/RX-7012RSL
Relay board
power
supply
board
CN291
Power
transformer
G
Fig.9
I
CN491
CN241
Power / Fuse
H
board
Removing the main board (See Fig.10)
Prior to performing the following procedure, remove
the top cover, the rear panel and audio board.
1.
Disconnect the harness from connector CN241 and
CN203 on the power supply board respectively.
2.
Remove the four screws I and the two screws J
attaching the main board.
3.
In case where the sub board is installed,detach it
after removing the connectors CN208,CN209 and
CN210 as well as the screw J'.
Removing the Heat sink
(See Fig.11 to 12)
1.
Remove the ten screws K and four screws L
attaching the heat sink.
2.
Remove the two screws L' attaching the heat sink
from the rear side of main board.
Main
board
I
J
J
CN203
I
I
J'
Fig.10
CN208
CN209
CN210
L'
Heat sink
L
K
Fig.11
K
K
L'
L
Main board
rear side
Fig.12
1-5
RX-7010RBK/RX-7012RSL
Removing the power transformer
(See Fig.13)
Prior to performing the following procedures, remove
the top cover.
1.
Unsolder the two harnesses connected to the power
transformer.
2.
Disconnect the harness from connector CN251 and
unsolder the harnesses connected to FW201 on the
power transformer board.
3.
Remove the four screws M attaching the power
transformer.
Removing the power / fuse board
(See Fig.13)
Prior to performing the following procedure, remove
the top cover and the rear panel.
1.
Remove the screw N attaching the power / fuse
board.
Power
transformer
board
CN251
Solder
Power cord
Power
supply
board
FW201
Solder
M
Power
transformer
M
N
Solder
Power / fuse board
2.
Unsolder the power cord and other harnesses
connected to the power / fuse board.
Removing the power supply board
(See Fig.14 and 15)
Prior to performing the following procedure, remove
the top cover and the front panel.
1.
Remove the one nut attaching the headphone jack of
the power supply board on the front side of the body.
2.
Disconnect the harness connected to connector
CN241,CN201,CN203 and CN291 on the power
transformer board (If necessary, cut off the band
fixing the harness on the side of the base chassis).
3.
Remove the three screws O attaching the power
supply board and pull out the power supply board
from the front bracket backward.
Power
supply
board
CN201
O
CN241
Fig.13
Headphone jack
Nut
Fig.14
Headphone jack
O
4.
Unsolder the three harnesses connected to the
power supply board.
1-6
CN203
CN291
Hook
Solder
O
Tie band
Solder
Fig.15
RX-7010RBK/RX-7012RSL
Removing the system control board /
power switch board (See Fig.16 to 18)
Prior to performing the following procedure, remove
the top cover and the front panel assembly.
1.
Pull out the volume knob on the front side of the front
panel and remove the nut attaching the system
control board.
2.
Remove the two screws P attaching the power
switch board.
3.
Disconnect the harness from connector CN714 on
the power switch board.
4.
Remove the six screws Q attaching the system
control board on the back of the front panel.
5.
On the back of the front panel, release the eight
joints by pushing the joint tabs inward.
Remove the operation switch panel toward the front.
6.
Release the two hook attaching the system control
board.
Operation switch panel
Fig.16
Q
Joint
Joint
Q
Nut
Joint
Front panel assembly
Volume knob
Power switch
board
Joint
P
Joint
Joint
Hook
Joint
Fig.17
System control board
Fig.18
Hook
Joint
CN714
1-7
RX-7010RBK/RX-7012RSL
Adjustment method
Tuner section
1.Tuner range
FM 87.5MHz~108.0MHz
AM (MW) 522kHz~1629kHz
(LW) 144kHz~ 288kHz
Power amplifier section
Adjustment of idling current
Measurement locationTP301(Lch) , TP302(Rch)
Adjustment partVR301(Lch) , VR302(Rch)
Attention
This adjustment does not obtain a correct adjustment value immediately after the amplifier is
used (state that an internal temperature has risen).
Please adjust immediately after using the amplifier after turning off the power supply of the
amplifier and falling an internal temperature.
<Adjustment method>
1.Set the volume control to minimum during this adjustment.(No signal & No load)
2.Set the surround mode OFF.
2.Turn VR301 and VR302 fully counterclockwise to warm up before adjustment.
If the heat sink is already warm from previous use the correct adjustment can not be made.
3.For L-ch,connect a DC voltmeter between TP301's B216 and B217 (Lch)
And,connect it between TP302's B218 and B219(Rch).
4.30 minutes later after power on, adjust VR301 for L-ch, or VR302 for R-ch so that the DC voltmeter
value has 1mV~10mV.
* It is not abnormal though the idling current might not become 0mA even if it is finished to turn variable
resistance (VR301,VR302) in the direction of counterclockwise.
Zero Input Detect Enable Pin
"L" : mode 7 (disable) at parallel mode,
zero detect mode is selectable by DZFM2-0 bits at serial mode.
"H" : mode 0 (DZF is AND of all six channels)
-
Output Buffer Power supply Pin, 2.7V~5.5V
-
Digital Power Supply Pin, 4.5V~5.5V
-
De-emphasis Pin, 0V
I
Power-Down & Reset Pin
When "L", the AK4527B is powered-down and the control registers are reset to default
state. If the state of P/S or CAD0-1 changes, then the AK4527B must be reset by PDN.
I
Test Pin
This pin should be connected to DVSS.
AK4527(1/2)
1-10
RX-7010RBK/RX-7012RSL
g
Pin function (2/2)
No.
Pin name
19
NC
20
ADIF
21
CAD1
22
CAD0
23
LOUT3
24
ROUT3
25
LOUT2
26
ROUT2
27
LOUT1
28
ROUT1
29
LIN-
30
LIN+
31
RIN-
32
RIN+
33
DZF2
OVF
34
VCOM
35
VREFH
36
AVDD
37
AVSS
38
DZF1
39
MCLK
40
P/S
41
DIF0
CSN
42
DIF1
SCL/CCLK
43
LOOP0
SAD/CDTI
44
LOOP1
I/O
No Connect
No internal bonding.
Analog Input Format Select Pin
SURROUND control terminal
BASS BOOST control terminal
Input attenuator control terminal
MUTING control terminal
Analog positive power supply terminal
SUB Woofer volume signal input terminal
Analog ground terminal
R ch volume signal input terminal for rear speaker
L ch volume signal input terminal for rear speaker
Analog ground terminal
Center volume signal input terminal
Analog ground terminal
R ch volume signal input terminal
Analog ground terminal
L ch volume signal input terminal
Non connect
Frequency adjustment terminal tone/treble
Frequency adjustment terminal tone/bass
Tone output terminal
Frequency adjustment terminal tone/bass
Frequency adjustment terminal tone/treble
Frequency adjustment terminal tone/bass
L/R volume input terminal
Tone output terminal
L/R volume input terminal
Analog negative power supply terminal
L ch output
R ch output
Center volume signal output terminal
L ch volume signal output terminal for rear speaker
R ch volume signal output terminal for rear speaker
SUB Woofer volume signal output terminal
Analog ground terminal
Digital ground terminal
Latch input terminal
Volume data input terminal
Clock input terminal for data transfer
Digital power supply terminal
CLK (DSP)
READY (DSP)
RESET (DSP)
RELAY S
RELAY C
RELAY L/R 1
RELAY L/R 2
RELAY HEADPHONE
FL GRID SIGNAL CONTROL OUT
FL SEGMENT SIGNAL CONTROL OUT
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
No Connect
SOUSE MUTE
SUBWOOFER MUTE
TUNER MUTE
POWER ON (STANDBY)
SURROUND
DATA (A.SW)
CLK (A.SW)
STB (A.SW)
LATCH (VOL)
DATA (VOL)
CLK (VOL)
VPP
1-17
RX-7010RBK/RX-7012RSL
TC9446F-014 (IC631) : Digital signal processor for dolby digital (AC-3)
/ MPEG2 audio decode
Pin No.SymbolI/OFunction
1
2
3
4
5
6
7
8~11
12
13
14
15
16~18
19
20
21
22
23
24
25
26
27,28
29~31
32,33
34
35
36
37
38,39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54~61
62
63~70
71
72~80
81
82~89
90
91
92,93
94
95
96
97
98,99
100
RST
MIMD
MICS
MILP
MIDIO
MICK
MIACK
FI0~3
IRQ
VSS
LRCKA
BCKA
SDO0~2
SD03
LRCKB
BCKB
SDT0
SDT1
VDD
LRCKOA
BCKOA
TEST0,1
LRCKOB,BCKOB,TXO
TEST2,3
RX
VSS
TSTSUB0
FCONT
TSTSUB1,TSTSUB2
PDO
VDDA
PLON
AMPI
AMPO
CKI
VSSA
CKO
LOCK
VSS
WR
OE
CE
VDD
IO7~0
VSS
AD0~7
VDD
AD8~16
VSS
PO0~7
VDDDL
LPFO
DLON,DLCKS
SCKO
VSSDL
SCKI
VSSX
XO,XI
VDDX
Reset signal input terminal (L:reset H:Operation usually)