Safety precautions --------------------------------------------------------1-2
Disassembly method -----------------------------------------------------1-3
Adjustment method -------------------------------------------------------1-8
Description of major ICs -------------------------------------------------1-9~22
COPYRIGHT 2001 VICTOR COMPANY OF JAPAN, LTD.
No.20988
Jun. 2001
RX-6010VBK/ RX-6012VSL
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 circuitr y 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 fur ther
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 par ts 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 each exposed 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 m ust 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 pr inted 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-6010VBK/ RX-6012VSL
Disassembly method
Removing the top cover (See Fig.1)
Remove the four screws A attaching the top cover
1.
on both sides of the body.
Remove the three screws B on the back of the body.
2.
Remove the top cover from behind in the direction of
3.
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.
Disconnect the card wire from connector CN402 on
1.
the audio board and CN201 on the power supply
board in the front panel assembly.
Cut off the tie band fixing the harness.
2.
Tie band
Main
board
CN402
A
Top cover
2
A
2
C
B
Fig.1
Front panel assembly
C
CN201
Power supply
board
Remove the three screws C attaching the front
3.
panel assembly.
Remove the four screws D attaching the front panel
4.
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.
Remove the power cord stopper from the rear panel
1.
by moving it in the direction of the arrow.
Remove the nineteen screws E attaching the each
2.
boards to the rear panel on the back of the body.
Audio board
E
E
E
E
D
E
Fig.2
Front panel assembly
Fig.3
E
D
Cord stopper
E
Remove the four screws F attaching the rear panel
3.
on the back of the body.
F
Rear panel
F
Fig.4
E
F
F
1-3
RX-6010VBK/ RX-6012VSL
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.
Cut off the tie band fixing the harness.
1.
Disconnect the DSP board from connector CN481 on
2.
the audio board.
Audio
board
DSP
board
CN481
Tie band
Disconnect the audio input board, DVD board and
3.
the video board from connector CN421, CN431 and
CN441 on the audio board.
Disconnect the tuner board from connector CN411
4.
on the audio board.
CN421
Audio
input
board
CN431
CN481
DVD
Video
board
board
DSP board
CN441
Fig.5
Fig.6
Tuner
board
CN411
1-4
CN421
CN431
CN441
Fig.8
Tie band
CN411
Tuner
board
Audio
input
board
CN421
DVD
board
CN431
Video
board
CN441
Fig.7
RX-6010VBK/ RX-6012VSL
Removing the audio board (See Fig.9)
Prior to performing the following procedure, remove
the top cover and the rear panel.
Disconnect the card wire from connector CN402 on
1.
the audio board.
Disconnect the relay board from the audio board and
2.
the power supply board. (CN291,CN491)
Disconnect the harness from connector CN473,
3.
CN471, CN472, and CN385.
Remove the three screws G attaching the audio
4.
board assembly.
Remove the screw H attaching the audio board
5.
assembly.
Removing the main board (See Fig.10)
Prior to performing the following procedure, remove
the top cover, the rear panel and audio board.
CN473
G
CN402
G
Audio board
CN471
I
J
I
CN472
CN385
G
Fig.9
I
Relay board
CN491
H
CN241
power
supply
board
CN291
Power
transformer
J
CN203
I
Disconnect the harness from connector CN241 and
1.
CN203 on the power supply board respectively.
Remove the four screws I and the two screws J
2.
attaching the main board.
Removing the Heat sink
(See Fig.11 and 12)
Remove the ten screws K and four screws L
1.
attaching the heat sink.
Remove the two screws L' attaching the heat sink
2.
from the rear side of main board.
Main
board
Heat sink
L
K
Fig.10
Fig.11
K
K
L
L'
L'
Main board
rear side
Fig.12
1-5
RX-6010VBK/ RX-6012VSL
Removing the power transformer
(See Fig.13)
Prior to performing the following procedures, remove
the top cover.
Cut off the tie band fixing the harness.
1.
Unsolder the two harnesses connected to the power
2.
transformer.
Disconnect the harness from connector CN251 and
3.
unsolder the harnesses connected to FW201 on the
power transformer board.
Remove the four screws M attaching the power
4.
transformer.
Removing the voltage selector board and
the power / fuse board (See Fig.13)
Prior to performing the following procedure, remove
the top cover and the rear panel.
Unsolder the six harnesses connected to the power
1.
transformer board and remove the voltage board.
Remove the screw N attaching the power / fuse
2.
board.
FW201
CN251
M
M
Solder
(from the
power/ fuse
board)
Power cord
Voltage selector
board
Fig.13
Power
supply
board
Solder
Tie band
Power
transformer
board
Power
transformer
Power
transformer board
Solder (from the
voltage selector
board)
Tie band
N
Solder
Power / fuse board
Unsolder the power cord and other harnesses
3.
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.
Remove the one nut attaching the headphone jack of
1.
the power supply board on the front side of the body.
Disconnect the harness connected to connector
2.
CN241,CN201,CN203 and CN291 on the power
transformer board.
Remove the three screws O attaching the power
supply board and pull out the power supply board
3.
from the front bracket backward.
Unsolder the three harnesses connected to the
power supply board.
4.
Power
supply
board
O
CN241
CN203
CN291
Hook
CN201
Fig.14
Power
supply board
Headphone jack
Nut
Headphone jack
O
Solder
O
1-6
Solder
Fig.15
RX-6010VBK/ RX-6012VSL
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.
Pull out the volume knob on the front side of the front
1.
panel and remove the nut attaching the system
control board.
Remove the two screws P attaching the power
2.
switch board.
Disconnect the harness from connector CN714 on
3.
the power switch board.
Remove the six screws Q attaching the system
4.
control board on the back of the front panel.
On the back of the front panel, release the eight
5.
joints by pushing the joint tabs inward.
Remove the operation switch panel toward the front.
Release the two hook attaching the system control
6.
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-6010VBK/ RX-6012VSL
Adjustment method
Tuner section
1.Tuner range
FM 87.5MHz~108.0MHz
AM(MW) 531kHz~1710kHz
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.
TP302(Rch)
VR302 (Rch)
VR301 (Lch)
TP301(Lch)
Heat sink
1-8
Description of major ICs
UPD784215AGC103 (IC671) : Unit CPU
1.Pin layout
75 ~ 51
76
~
50
~
RX-6010VBK/ RX-6012VSL
100
1 ~ 25
26
2.Pin function
Pin No.SymbolI/OFunction
1~8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25~32
33
34,35
36
37,38
39
40
41
42
43
44
45,46
47
48
49
50
51,52
53
54~63
64,65
66
67
68
69,70
71
72
73~80
81
82
83
84
85
86
87
88
89
90~93
94
95~100
VDD
X2
X1
VSS
XT2
XT1
RESET
AUTODAT A
LOCK
DIGITAL0
FORMAT
CHANNEL
ERR
RSTDET
AVDD
AVREF0
AVSS
AV REF1
RX,TX
DSPCOM
DSPSTS
DSPCLK
DSPRDY
MIDIO_IN/OUT
MICK
MICS
MILP
MIACK
DSPRST
CDTI/CDTO
CCLK
CS
XTS
PD
GND
VDD
3D-ON
3D-ON
ANA/T-TONE
REF-MIX
D.MUTE
S.MUTE
ASW1~4
TEST
Non connect
Power supply terminal
Connecting the crystal oscillator for system main clock
O
Connecting the crystal oscillator for system main clock
I
Connect to GND
Connecting the crystal oscillator for system sub clock
O
Connecting the crystal oscillator for system sub clock
I
System reset signal input
I
Output of DSP to general-purpose port
I
Output of DSP to general-purpose port
I
Output of DSP to general-purpose port
I
Output of DSP to general-purpose port
I
Output of DSP to general-purpose port
I
Output of DSP to general-purpose port
I
Reset signal input
I
Power supply terminal
Connect to GND
Connect to GND
Connect to GND
Non connect
Power supply terminal
Not use
Non connect
Communication port from IC701
I
Status communication port to IC701
O
Clock input from IC701
I
Ready signal input from IC701
I
Non connect
Interface I/O terminal with microcomputer
I/O
Interface I/O terminal with microcomputer of clock signal
O
Interface I/O terminal with microcomputer of chip select
O
Interface I/O terminal with microcomputer
O
Interface I/O terminal with microcomputer
O
Non connect
Reset signal output of DSP
O
Non connect
Interface I/O terminal with microcomputer
I/O
Interface I/O terminal with microcomputer of clock signal
O
Interface I/O terminal with microcomputer of chip select
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-do wn and the control registers are reset to def ault
state. If the state of P/S or CAD0-1 changes, then the AK4527B m ust be reset b y PDN.
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
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Function
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
LED8 SIGNAL CONTROL OUT (FM/AM)
LED7 SIGNAL CONTROL OUT (TV/DBS)
LED6 SIGNAL CONTROL OUT (TAPE/CDR)
LED5 SIGNAL CONTROL OUT (VCR)
LED4 SIGNAL CONTROL OUT (CD)
LED3 SIGNAL CONTROL OUT (DVD)
LED2 SIGNAL CONTROL OUT (PHONO)
LED1 SIGNAL CONTROL OUT (DVD MULTI)
SOUSE MUTE
SUBWOOFER MUTE
TUNER MUTE
POWER ON (STANDBY)
SURROUND
DATA (A.SW)
CLK (A.SW)
STB (A.SW)
LATCH (A.SW)
DATA (VOL)
CLK (VOL)
VPP
1-15
RX-6010VBK/ RX-6012VSL
LA1838 (IC102) : FM AM IF amp &detector, FM MPX decoder
1. Block Diagram
30
ALC
BUFF
FM
S-METER
FM IF
1
2. Pin Function
Pin
Symbol
No.
FM IN
1
AM MIX
2
3
FM IF
AM IF
4
GND
5
TUNED
6
STEREO
7
8
VCC
9
FM DET
10
AM SD
FM VSM
11
AM VSM
12
13
MUTE
14
FM/AM
MONO/ST O
15
29
28
AM
OSC
SD
COMP
S-CLRVE
PM
DET
2
I/O
I
This is an input terminal of FM IF
REG
AM
MIX
AM/FM
IF-BUFF
3
27
FM
RF.AMP
AM IF
4
26
AGC
AM
S-METER
GND
Function
DET
TUNING
DRIVE
5
signal.
This is an out put terminal for AM
O
mixer.
I
Bypass of FM IF
Input of AM IF Signal.
I
I
This is the device ground terminal.
When the set is tuning, this terminal
O
becomes "L".
O
Stereo indicator output. Stereo "L",
Mono: "H"
III
This is the power supply terminal.
I
FM detect transformer.
I
This is a terminal of AM ceramic filter.
O
Adjust FM SD sensitivity.
O
Adjust AM SD sensitivity.
I/O
When the signal of IF REQ of IC121(
LC72131) appear, the signal of FM/AM
IF output. //Muting control input.
Change over the FM/AM input.
I
"H" :FM, "L" : AM
Stereo : "H", Mono: "L"
25
6
24
STEREO
DRIVE
7
22
23
P-DET
VCC
89
Pin
Symbol
No.
16
L OUT
17
R OUT
18
19
20
21
22
23
24
25
26
27
28
29
30
L IN
R IN
RO
LO
IF IN
FM OUT
AM DET
AM AGC
AFC
AM RF
REG
AM OSC
OSC BUFFER
21
DECODER
ANIT-BIRDIE
VCO
384KHz
10
20
STEREO
5N
SW
FF
38k
11
I/O
O
Left channel signal output.
O
Right channel signal output.
Input terminal of the left channel post
I
18
19
MUTE
FF
/
19k
2
1213
FF
19k
/
LS
Function
1716
PILOT
DET
14
AMP.
Input terminal of the right channel
I
post AMP.
Mpx Right channel signal output.
O
O
Mpx Left channel signal output.
I
Mpx input terminal
FM detection output.
O
AM detection output.
O
This is an AGC voltage input terminal
I
for AM
I
This is an output terminal of voltage
for FM-AFC.
AM RF signal input.
I
Register value between pin 26 and pin28
O
desides the frequency width of the
input signal.
I
This is a terminal of AM Local
oscillation circuit.
AM Local oscillation Signal output.
O
15
1-16
LC72136N (IC121) : PLL frequency synthesizer
1. Pin layout
FM/AM
CLOCK
FM/ST/VCO
AM/FM
2. Block diagram
XT
CE
DI
DO
SDIN
1
2
3
4
5
6
7
8
9
10
11
22
21
20
19
18
17
16
15
14
13
12
XT
GND
LPFOUT
LPFIN
PD
VCC
FMIN
AMIN
IFCONT
IFIN
RX-6010VBK/ RX-6012VSL
1
22
16
15
3
4
5
6
17
21
3. Pin function
Pin
Symbol
No.
1
2
3
4
5
6
7
8
9
10
11
XT
FM/AM
CE
DI
CLOCK
DO
FM/ST/VCO
AM/FM
LW
MW
SDIN
Reference
Driver
Swallow Counter
1/2
C
2
B
I/F
Power
on
Reset
Function
I/O
X'tal oscillator connect (75kHz)
I
LOW:FM mode
O
When data output/input for 4pin(input) and
I
Swallow Counter
1/16,1/17 4bit
1/16,1/17 4bit
12bit
Programmable
DriverS
Data Shift Register & Latch
782
6pin(output): H
Input for receive the serial data from
I
controller
Sync signal input use
I
Data output for Controller
O
Output port
"Low": MW mode
O
Open state after the power on reset
O
Input/output port
I/O
Input/output port
I/O
Data input/output
I/O
Phase
Detector
Charge Pump
Unlock
Detector
Universal
Counter
11
13
Pin
Symbol
No.
IFIN
12
IFCONT
13
14
AMIN
15
FMIN
16
VCC
17
18
19
20
12
I/O
Function
IF counter signal input
I
IF signal output
O
Not use
-
AM Local OSC signal output
I
FM Local OSC signal input
I
Power suplly(VDD=4.5-5.5V)
When power ON:Reset circuit move
PLL charge pump output(H: Local OSC
18
PD
O
frequency Height than Reference frequency.
L: Low Agreement: Height impedance)
Input for active lowpassfilter of PLL
19
20
21
22
LPFIN
LPFOUT
GND
XT
I
Output for active lowpassfilter of PLL
O
Connected to GND
X'tal oscillator(75KHz)
I
1-17
RX-6010VBK/ RX-6012VSL
TC9162AF (IC423) : Analog switch
VSS
L-S1
L-S2
L-COM1
L-S3
L-S4
L-COM2
L-S5
L-S6
L-COM3
L-S7
L-COM4
ST
GND
L-S1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
2
28
27
26
25
24
23
22
21
20
19
18
17
16
15
VDD
R-S1
R-S2
R-COM1
R-S3
R-S4
R-COM2
R-S5
R-S6
R-COM3
R-S7
R-COM4
DATA
CK
VSS
GNDVDD
1
14
28
27
R-S1
L-S2
L-COM1
L-S3
L-S4
L-COM2
L-S5
L-S6
L-COM3
L-S7
L-COM4
ST
3
4
5
6
7
8
9
10
11
12
13
LEVEL SHIFTER
LATCH CIRCUIT
LATCH CIRCUIT
LEVEL SHIFTER
26
25
24
23
22
21
20
19
18
17
16
R-S2
R-COM1
R-S3
R-S4
R-COM2
R-S5
R-S6
R-COM3
R-S7
R-COM4
DATA
1-18
SHIFT REGISTER
15
CK
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