JVC RX-8020VBK Service Manual

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

RX-8020VBK

Area suffix

RX-8020VBK

A/V CONTROL RECEIVER

CATV/DBS VCR1 TV AUDIO

DVD MULTIDVD

CD

CDR

TV/DBS VIDEO PHONO

TAPE/MD

VCR1 VCR 2

SURR/DSP

ANALOG/DIGITAL

DSP

SURROUND

OFF

ANALOG

BASS

DIRECT

BOOST FRONT•L

231

MENU

SOUND

TEST CENTER SUBWFR

564

ENTER

SURR•L SURR•R

DIMMER

7/P

89

SBACK•L SBACK•R

DIGITAL EQ

MUTING

0

10

RETURN FM MODE 100
CATV/DBS
CONTROL

CH/

LEVEL

TV VOL

TV/VIDEO

TEXT

PLAY

MENU

DISPLAY

REC

/REW

PAUSE

PAUSE

SET

DOWN – TUNING – UP

SLEEP

CONTROL

STOP

RM-SRX8020J

REMOTE CONTROL

FM/AM

USB

INPUT

FRONT•R

+10

+

VOLUME

EXIT

FF/

SPEAKERS ON/OFF

SUBWOOFER OUT ON/OFF

PHONES

STANDBY

STANDBY/ON

1

2

FM/AM TUNING FM/AM PRESET FM MODE

SURROUND

Contents

USB AUDIO

PUSH OPEN

DSP

S-VIDEO VIDEO

MEMORY

SURROUND/DSP

OFF

VIDEO

L—AUDIO—R

INPUT

ANALOG/DIGITAL

INPUT ATT

RX-8020V

AUDIO/VIDEO CONTROL RECEIVER

SOURCE NAME

TV SOUND/DBSVIDEOVCR 2VCR 1DVDDVD MULTI

SOUCE NAME

FM/AMUSB AUDIOTAPE/MDCDRCDPHONO

DIGITAL

EQ

EFFECT SETTING

CONTROL

DOWN UP

UJ ---------- U.S.Military

MASTER VOLUME

LEVEL
ADJUST

ANALOG DIRECT

BASS BOOST

Safety precautions --------------------------------------------------------1-2
Disassembly method -----------------------------------------------------1-3
Adjustment method -------------------------------------------------------1-9
Self-diagnose function-----------------------------------------------------1-10
Description of major ICs -------------------------------------------------1-12~31

COPYRIGHT 2002 VICTOR COMPANY OF JAPAN, LTD.

No.21161
Oct. 2002

RX-8020VBK

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 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.

(This regulation does not correspond to J and C version.)

1-2

RX-8020VBK

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.

Cut off the tie bands.

2.

Disconnect the harness from the connector CN416
(on the video audio board), CN206 (on the video
board) and CN244 (on the S video board) (see fig.8).

3.

Disconnect the card wire from the connector CN400
on the audio board and CN402 on the power supply
board.

4.

Remove the three screws C fixing the upper surface
of the front panel, and four screws D fixing the
bottom.

Main

board

Audio
board

CN400

Top cover

C

A

(both sides)

B

Fig.1

Front panel assembly

C

Power
supply board

CN402

Tie band

Compu
link board

CN393

Fig.2

5.

Detach the front panel assembly toward the front.

6.

Remove the screw X attaching the earth wire (see fig.

19).

Removing the compulink board
(See Fig.2 and 4)

Prior to performing the following procedure, remove
the top cover.

1.

Disconnect the harness from the connector CN393
on the compu link board.

2.

Remove the three screws E attaching the compu link
board to the rear panel.

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.

D

Front panel assembly

Fig.3

Cord stopper

FFF FE G

2.

Remove the thirty seven screws E & F & G & H
attaching the each board to the rear panel.

3.

Remove the three screws I attaching the rear panel
on the back of the body.

Rear panel

FIIHI

Fig.4

1-3

RX-8020VBK

Removing the DVD board (See Fig.5 and 6)

Prior to performing the following procedure, remove
the top cover and rear panel.

1.

Cut off the tie bands.

2.

Disconnect the harness from the connector CN393
on the compu link board (see fig.2).

3.

Disconnect the harness from the connector CN721,
CN723 on the main board and CN722 on the Cch
amp. board.

4.

Remove the two fasteners fixing the small board to
the audio input board and video board.

5.

Draw out the DVD board upwards, disconnecting the
connector CN501, CN243, CN205, CN381 and
CN361 on the DVD board.

Removing the each board of the tuner, the
audio input, the video audio, the video, the
S video and the DSP (See Fig.7 to 10)

Main
board

CN721
CN723

CN361
CN381
CN205

Small board

Fastener

Video audio board

Audio input board

Audio input board

&

Video board

Video board

CN722
(on the Cch
amp. board)

Tie band

DVD board

CN501
CN243

Fig.5

DVD board

Fig.6

S Video board

DSP board

Prior to performing the following procedure, remove
the top cover, rear panel and DVD board.

1.

Remove the tuner board from the connector CN101
on the audio board.

2.

Remove the audio input board from the connector
CN301 on the audio board.

3.

Disconnect the harness from the connector CN416
and remove the video audio board from the
connector CN303 on the audio board.

4.

Disconnect the harness from the connector CN206
and remove the video board from the connector
CN201 on the audio board.

6.

Disconnect the harness from the connector CN244
and remove the S video board from the connector
CN241 on the audio board.

7.

Remove the DSP board from the connector CN601
on the audio board.

Tuner board

Fig.7

CN244
(on the S
video board)

1-4

CN206
(on the
video board)

CN416
(on the video audio board)

Fig.8

RX-8020VBK

Audio board

CN101

CN301
CN303

CN201

Fig.9

Removing the speaker board (See Fig.11)

Prior to performing the following procedure, remove
the top cover and rear panel.

Disconnect the harness from the connector CN931/

1.
CN932 on the audio board.

Disconnect the harness from the connector CN813

2.
and CN814 on the main board.

CN601
CN241

Main board

Connection between the audio board and each board

CN101
CN301
CN303
CN201
CN241
CN601

Tuner board (CN111)
Audio input board (CN311)
Vidoe audio board (CN313)
Video board (CN200)
S video board (CN240)
DSP board (CN587)

Fig.10

Relay board

Power
supply
board

CN71
Tie band

CN814
CN813

CN931

/CN932

Power
transformer

CN81

Removing the audio board
(See Fig.11 and 12)

Prior to performing the following procedure, remove
the top cover, rear panel, DVD board, tuner board,
audio input board, video audio board, video board, S
video board and DSP board.

Disconnect the harness and card wire from the

1.
connector CN931 /CN932 and CN400 on the audio
board.

Cut off the tie band, if needed.

2.
Disconnect the connector CN71(on the power supply

3.
board) and CN81(on the audio board) and remove the
relay board.

Disconnect the harness from the connector CN831 on

4.
the main board.

Remove the three screws J and screw K attaching the

5.
audio board.

Audio board

CN831
CN400

J

Audio board

Speaker board

Fig.11

K

Fig.12

1-5

RX-8020VBK

Removing the main board
(See Fig.13 to 15)

Prior to performing the following procedure, remove
the top cover.

1.

Remove the card wire and cut off the tie bands.

2.

Disconnect the harness from the connector CN721,
CN723, CN813, CN814, CN831 and CN881 on the
main board.

3.

Disconnect the harness from the connector CN722
on the Cch amp. board (see fig.5).

4.

Disconnect the harness from the connector CN811
on the power trans1 board.

6.

Remove the screw K, after removing the relay board
if needed (see fig.11).

7.

Remove the two screws L and the six screws M
attaching the main board.

8.

Remove the two screws N attaching the heat sink to
the main board.

9.

Disconnect the connector of each amp. board.

Card wire

L

Main board

CN831
CN814
CN813

M

CN723

CN721

Tie band

Fig.13

Heat sink

Main board (reverse side)

Fig.14

M

N

Tie band

CN811

Power
trans1
board

CN722

K

L

CN881

Removing the each amp. board of Cch,
Lch, Rch, RLch and RRch (See Fig.16)

Prior to performing the following procedure, remove
the top cover and main board.

1.

Remove the two screws O attaching the Cch amp.
board and remove the Cch amp. board.

2.

Remove the two screws P attaching the Lch amp.
board and remove the Lch amp. board.

3.

Remove the two screws Q attaching the Rch amp.
board and remove the Rch amp. board.

4.

Remove the two screws R attaching the RLch amp.
board and remove the SLch amp. board.

5.

Remove the two screws S attaching the RRch amp.
board and remove the SRch amp. board.

Removing the Heat sink (See Fig.16)

Prior to performing the following procedure, remove
the top cover, main board and each amp. board.

RLch amp. board

RRch amp. board

Main board

CN706

CN705

CN702

S

T

(RRch)

Heat sink

CN701

Fig.15

Q

(Rch)

Rch amp. board

Lch amp. board

Cch amp. board

Heat sink

CN703

O

(Cch)

T

Remove the four screws T attaching the two

1.
brackets to the heat sink and remove the two
brackets.

1-6

Bracket

R

(RLch)

Fig.16

P

(Lch)

Bracket

Removing the power transformer
(See Fig.17)

Prior to performing the following procedures, remove
the top cover.

1.

Disconnect the harness from the connector CN55
/CN56 and CN811 on the power trans1 board.

2.

Unsolder the seven solder parts on the power trans2
board.

3.

Remove the four screws U attaching the power
transformer.

Removing the voltage selector board
(See Fig.17)

Prior to performing the following procedure, remove
the top cover.

1.

Removed the two screws G attaching the voltage
selector board to the rear panel (see fig.4).

2.

Unsolder the six solder parts on the voltage selector
board.

CN55/CN56

CN811

U

Solder part

RX-8020VBK

Power
supply board

Power
trans1 board

Power
transformer

Power
trans2 board

Voltage
selector board

Removing the power/fuse board
(See Fig.17)

Prior to performing the following procedure, remove
the top cover.

1.

Removed the two screws G attaching the voltage
selector board to the rear panel (see fig.4).

2.

Remove the screw H attaching the power/fuse board
to the rear panel (see fig.4).

3.

Remove the screw V attaching the power/fuse board.

4.

Unsolder the eight solder parts on the power/fuse
board.

Removing the power supply board

(See Fig.18)

Prior to performing the following procedure, remove
the top cover and relay board.

1.

Cut off the tie band if needed.

2.

Disconnect the card wire from the connector CN402
on the power supply board.

Power cord

Solder part

(on the reverse side)

Headphone jack board

Power supply board

W

CN402

Solder part

(on the reverse side)

Fig.17

Under this board

Power/fuse board

V

Solder part

Headphone jack

W

3.

Disconnect the harness from the connector
CN55/CN56 on the power trans1 board (see fig.17).

4.

Remove the three screws W attaching the power
supply board and pull out the power supply board
removing the hook.

5.

Unsolder the three solder parts on the power supply
board.

Solder part

(on the
reverse side)

Hook

Fig.18

Tie band

W

Tie band

1-7

RX-8020VBK

g

)

Removing the headphone jack board

(See Fig.18 and 19)

Prior to performing the following procedure, remove
the top cover, front panel assembly and power supply
board.

1.

Disconnect the harness form the connector CN881
on the main board (see fig.13).

2.

Remove the nut fixing the headphone jack.

3.

Drawn out the headphone jack board in the direction
of an inner side.

<Front panel assembly>

Removing the system control board,
power switch board and switch board
(See Fig.1 to 3)

Prior to performing the following procedure, remove
the top cover and front panel assembly.

X

Bracket

Headphone

jack

Operation switch panel

Front panel

assembly

(inner side)

Earth wire

Nut

Fig.19

Nut

1.

Pull out the volume knob on the front side of the front
panel assembly and remove the nut attaching the
system control board.

2.

Remove the two screws A attaching the power
switch board on the front panel assembly(inner side).
And disconnect the harness from the connector
CN430 on the power switch board.

3.

Remove the two screws B attaching the switch board
on the front panel assembly(inner side). And
disconnect the harness form the connector CN432
on the switch board.

4.

Remove the harness from the three hooks a.

5.

Remove the eight screws C attaching the operation
switch panel from the inner side of the front panel
assembly.

6.

Release the four joints on the front panel assembly
(inner side) by pushing the joint tabs inward.
Remove the operation switch panel toward the front.

7.

Release the two hooks b attaching the system
control board.

CN432

B

Volume knob

Switch board

C

Joint

CN412

Fig.1

Front panel assembly (inner side

Power switch board

C

Joint

System control board

Joint

Fig.2

Hook a

C

Joint

CN430

A

8.

Disconnect the card wire from the connector CN410
and CN412 on the system control board.

1-8

Hook b

Fi

.3

Hook b

CN410

Adjustment method

Tuner section

1.Tuner range
FM 87.5MHz~108.0MHz
AM(MW) 531 kHz to 1 602 kHz (at 9 kHz intervals)
530 kHz to 1 600 kHz (at 10 kHz intervals)

Power amplifier section

Adjustment of idling current

Measurement location B2204-B2205(Lch) , B2213-2214(Rch)
Adjustment part VR787(Lch) , VR788(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, after you turn off amplifier and internal temperature falls.

RX-8020VBK

<Adjustment method>

1.Set the volume control to minimum during this adjustment.(No signal & No load)

2.Set the surround mode OFF.

2.Turn VR787 and VR788 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 B2204 and B2205 (Lch)
And,connect it between B2213 and B2214(Rch).

4.30 minutes later after power on, adjust VR787 for L-ch, or VR788 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 (VR787,VR788) in the direction of counterclockwise.

Heat sink

Rch amp. board

VR788 (Rch)

Lch amp. board

B2213, B2214

VR787 (Lch)
B2204, B2205

1-9

RX-8020VBK

Self-diagnose function

1. Detection of abnormal power supply and voltage

When the power is turned ON, if an abnormality is detected during the signal input at the A/D port (IC901,
pin 2-5, 7) for one second continuously, the status will become STANDBY mode immediately.

When the power is turned ON again, detection of abnormal power supply and voltage will not be carried out
during the first 4 seconds.

Given below is a list of threshold values at the detection of abnormalities.

Pin 2
Micro-computer+5V
Pin 3
Digital+5V
Pin 4
Analog+5V
Pin 5
+12V
Pin 7
Tuner+9V

At abnormal state
(Low voltage)
Analog value
0 - 2.2V
Analog value
0 - 2.2V
Analog value
0 - 2.2V
Analog value
0 - 2.2V
Analog value
0 - 2.2V

At normal state

Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V
Analog value

2.2 - 2.8V

At abnormal state
(High voltage)
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V
Analog value

2.8 - 5.0V

2. Initial setting on ship

To gain the initial setting on ship, put the power plug in the socket while pressing "DOWN" key and "UP" key
together simultaneously, then turn the power ON.

3. Test mode

To enter the test mode, put the power plug in the socket while pressing "EFFECT" key and "UP" key together
simultaneously, then turn the power ON.

Workings of test mode:
All FLs are turned ON for 3 seconds. (the FLs, which are divided in two groups, are turned ON alternatively)
A Faster volume UP/DOWN operation can be achieved with the remote controller.

When the power is turned OFF, the test mode will be released.
The FL display returns to normal after the three seconds. Then the STANDBY LED is turned ON (flashing

ON and OFF for each one second) to show the present status being a test mode.

1-10

RX-8020VBK

4. Self-diagnose

To enter the self-diagnose mode, put the power plug in the socket while pressing "SETTING" key and "UP" key
together simultaneously, then turn the power ON.

While the working status is being displayed, the each item can be switched with the UP/DOWN key
operation.

When the power is turned OFF, the self-diagnose mode will be released.
During the self-diagnose mode, the STANDBY LED is turned ON (flashing ON for one second then OFF for

three seconds).
FL transient display will be carried out as follows. When the transient display is not carried out,

normal display/workings are carried out.

S0001
200202209

V

D1

D2

D3

D4

D5

D6

D7

e

r

0

2

/

0

D

S

P

R

A

N

A
D
D
D
D
D
D

U
F
F
F
F
N

G

U

N

P

C

A

C

A

C
D
D
D
A

A
M

P
N

G

U

N

1
2
2
2
3
2
3
2
3

N

G

L

I

G

I

I

G

I

I

G

I

I

G

I

I

G

I

I

G

I

N

L

O

s

3

s

4

s

4

s

9

D

L

O

M

3

3
T
T
T

­S
S

­S

-

C

E

G
D

L

O

/

0

.

/

0

.

/

0

.

/

0

.

/

0

.

/

1

.

/

1

.

/

2

.

/

2

.

D

Information on VERSION of system microcomputer (IC901)
Example : 2002/2/20 9th ROM

1

.

0

Display the local version (IC581)

0

Example : Ver_1.00

2

/

1

Display the local creation date

0

Example : 2002/2/10

e

v

4

Display the DSP version (IC511)

1

Example : DSP Rev41

O

G

x

T

A

L

T

A

L

T

A

L

T

A

L

T

A

L

T

A

L

C

2
4
8
6

A

C

E
E

E

A

C

0
0
0
0
0
0
0
0
0

A

K

H

k

H

k

H

k

H

k
T

A

K

X
S

S

A

T

K

L
D

T

A

Display the input sources

x

1

However, since it is the source of DIR processing, actual source may be

2
3

contradicted.

4

Example : ANALOG08

5

Display the input Fs

z

Example : Fs48kHz

z
z
z

Display the input format
Example : PCM

M
D

Display the input channel
Example : 2/0.0

t

M

1-11

RX-8020VBK

Description of major ICs

XCC56367PV150 (IC501) : DSP

1. Pin layout

MISO/SDA
144

HREQ#

VCCS
GNDS

FST

FSR
SCKT
SCKR
HCKT
HCKR

VCCQL

GNDQ

VCCQH

VCCS
GNDS

ADO

ACI

TIO0

HAD7
HAD6
HAD5

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36

37

HAD4

2. Block diagram

SCK/SCL

SS#/HA2

SDO0/SDO0_1

SDO2/SDI3/SDO2_1/SDI3_1
SDO3/SDI2/SDO3_1/SDI2_1

SDO1/SDO1_1

SDO4/SDI1
SDO5/SDI0

HDS/HWR
HRW/HRD

HACK/HRRQ

HOREQ/HTRQ

HCS/HA10

HA9/HA2
HA8/HA1
HAS/HA0

MOSI/HA0

TMS

TCK

143

142

141

38

39

40

HAD3

VCCH

GNDH

TDI

TDO

SDO4_1/SDI1_1

MODA/IRQA#

140

139

138

137

41

42

43

44

HAD2

HAD1

HAD0

RESET#

MODB/IRQB#

MODCIRQC#

MODD/IRQD#

D23

D22

136

135

134

133

132

45

46

47

48

49

PCAP

VCCP

GNDP

VCCQH

SDO5_1/SDI0_1

D21

GNDD

131

130

50

51

AA2

FST_1

VCCD

D20

129

128

52

53

CAS#

SCKT_1

GNDQ

VCCQL

127

126

54

55

GNDQ

EXTAL

D19

D18

125

124

56

57

VCCC

VCCQL

D17

D16

123

122

58

59

GNDC

FSR_1

D15

GNDD

121

120

60

61

SCKR_1

PINT/NMI#

VCCD

D14

119

118

62

63

TA#

BR#

D13
117

64

BB#

D12

D11

116

115

65

66

VCCC

GNDC

D10D9GNDD

VCCDD8D7

114

113

112

111

67

68

69

70

AA1

AA0

RD#

WR#

110

71

BG#

109

108
107
106
105
104
103
102
101
100

99
98
97
96
95
94
93
92
91
90
89
88
87
86
85
84
83
82
81
80
79
78
77
76
75
74
73

72
A0

D6
D5
D4
D3
GNDD
VCCD
D2
D1
D0
A17
A16
A15
GNDA
VCCQH
A14
A13
A12
VCCQL
GNDQ
A11
A10
GNDA
VCCA
A9
A8
A7
A6
GNDA
VCCA
A5
A4
A3
A2
GNDA
VCCA
A1

1-12

1 2 16 8 4 6

TRIPLE

TIMER

DAX

(SPDIF Tx.)

INTERFACE

HOST

INTERFACE

ESAI

INTERFACE

ESAI_1

ADDRESS

PIO_EB

GENERATION

UNIT

SIX CHANNELS

DMA UNIT

24-BIT

DSP56300

Core

INTERNAL

DATA

BUS

PLL

CLOCK

GENARAT

EXTAL

RESET

PINIT/NMI

PROGRAM

INTERRUPT

CONTROLLER

PROGRAM

DECODE

CONTROLLE

MODA/IRQA
MODB/IRQB
MODC/IRQC
MODD/IRQD

5

SHI

INTERFACE

PERIPHERAL
EXPANSION AREA

PROGRAM

ADDRESS

GENERATOR

MENORY EXPANTION AREA

PROGRAM

RAM
/INSTR.
CACHE

3Kx24

PROGRAM

ROM

40K x 24

Bootstrap

PM_EB

X MEMORY

RAM

13K x 24

ROM

32K x 24

XM_EB YM_EB

YAB
XAB
PAB
DAB

DDB

YDB
XDB
PDB

GDB

DATA ALU

24 x 24 + 56->56-BIT MAC

TWO 56-BIT ACCUMULATORS

BARREL SHIFTER

24BITS BUS

Y MEMORY

RAM

7K x 24

ROM

8K x 24

EXTERNAL

ADDRESS

SRAM BUS

INTERFACE

EXTERNAL

DATA BUS

BUS

SWITCH

DRAM &

&

I-CACHE

SWITCH

POWER

MNGMNT

JTAG
OnCE

18

ADDRESS

10

CONTROL

24

DATA

4

3. Signal groupings

RX-8020VBK

PORT A ADDRESS BUS

A0-A17

VCCA(3)

GNDA(4)

PORT A DATA BUS

D0-D23

VCCD(4)

GNDD(4)

PORT A BUS CONTROL

AA0-AA2/RAS0-RAS2

CAS

RD

WR

TA
BR
BG

BB

VCCC(2)

GNDC(2)

INTERRUPT AND

MODEL CONTROL

MODA/IRQA

MODB/IRQB
MODC/IRQC
MODD/IRQD

RESET

PLL AND CLOCK

EXTAL

PINIT/NMI

PCAP
VCCP

GNDP

QUIET POWER

VCCQH(3)

VCCQL(4)

GNDQ(4)

SPDIF TRANSMITTER(DAX)

ADO[PD1]

ACI[PD0]

TIMER 0

TIO0[TIO0]

Port D

Port B

Port C

Port E

OnCE ON-CHIP EMULATION/JTAG PORT

TDI
TCK
TDO
TMS

PARALLEL HOST PORT(HD108)

HAD(7:0)[PB0-PB7]
HAS/HA0[PB8]
HA8/HA1[PB9]
HA9/HA2[PB10]
HRW/HRD[PB11]
HDS/HWR[PB12]
HCS/HA10[PB13]
HOREQ/HTRQ[PB14]
HACK/HRRQ[PB15]
VCGH
GNDH

SERIAL AUDIO INTERFACE (ESAI)

SCKT[PC3]
FST[PC4]
HCKT[PC5]
SCKR[PC0]
FSR[PC1]
HCKR[PC2]
SDO0[PC11]/SDO0_1[PE11]
SDO1[PC10]/SDO1_1[PE10]
SDO2/SDI3]PC9]/SDO2_1/SDI3_1[PE9]
SDO3/SDI2[PC8]/SDO3_1/SDI2_1[PE8]
SDO4/SDI1[PC7]
SDO5/SDI0[PC6]

SERIAL AUDIO INTERFACE (ESAI_1)

SCKT_1[PE3]
FST_1[PE4]
SCKR_1[PE0]
FSR_1[PE1]
SDO4_1/SDI1_1[PE7]
SDO5_1/SDI0_1[PE6]
VCCS(2)
GNDS(2)

SERIAL HOST INTERFACE (SHI)

MOSI/HA0
SS/HA2
MISO/SDA
SCK/SCL
HREQ

1-13

RX-8020VBK

AK4586VQ (IC571) : DIR & CODEC

1. Pin layout

44 - 34

2. Pin function
Pin No.

1
2

3
4
5
6
7
8

9
10
11
12
13
14
15
16

17
18
19
20
21

22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44

1-14

11 - 1

12 - 22

Symbol
XTO
XTI
EXTCLK
TVDD
VDSS
DVDD
TX
MCKO
LRCK
BICK
SDTO
SDTI1
SDTI2
SDTI3
INT0
INT2
CDTO
CAD1
CDTI
SDA
CCLK
SCL
CSN
CAD0
DZF2
OVF
AVSS
AVDD
VREFH
VCOM
DZF1
LOUT3
ROUT3
LOUT2
ROUT2
LOUT1
ROUT1
LIN
RIN
PCDD
R
PVSS
RX4
SLAVE
RX3
TST
RX2
I2C
RX1
PDN

23 - 33

I/O

O

I
I

-

-

­O
O

I/O
I/O

O

I
I

I
O
O
O

I

I

I/O

I

I

I

I
O
O

-

-

I
O
O
O
O
O
O
O
O

I

I

-

-

-

I

I

I

I

I

I

I

I

Function
X'tal output pin
X'tal input pin
External master clock input pin
Output buffer power supply pin, 2.7V~5.5V
Digital Ground pin, 0V
Digital power supply pin, 4.5V~5.5V
Transmit channel (through data) output pin
Master clock output pin
Input/Output channel clock pin
Audio serial data clock pin
Audio serial data output pin
DAC1 audio serial data input pin
DAC2 audio serial data input pin
DAC3 audio serial data input pin
Interrupt 0 pin
Interrupt 1 pin
Control data output pin in 4-wire serial control mode
Chip address 1 pin in I2C bus control mode
Control data input pin in 4-wire serial control mode
Control data input/output pin in I2C bus control mode
Control data clock pin in 4-wire serial control mode
Control data clock pin in I2C bus control mode
Chip select pin in 4-wire serial control mode
Chip address 0 pin in I2C bus control mode
Zero input detect 2 pin
Analog input overflow detect pin
Analog ground pin, 0V
Analog power supply pin, 4.5V~5.5V
Positive voltage reference input pin, AVDD
Common voltage output pin, AVDD/2
Zero input detect 1 pin
DAC3 Lch analog output pin
DAC3 Rch analog output pin
DAC2 Lch analog output
DAC2 Rch analog output pin
DAC1 Lch analog output pin
DAC1 Rch analog output pin
Lch analog input pin
Rch analog input pin
PLL power supply pin, 4.5V~5.5V
External resistor pin
Pll ground pin, 0V
Receiver channel 4 pin (internal biased pin)
Slave mode pin
Receiver channel 3 pin (internal biased pin)
Test pin
Receiver channel 2 pin (internal biased pin)
Control mode select pin
Receiver channel 1 pin internal biased pin)
Power-Down & Reset pin

3. Block diagram

CSN

CCLK

CDTI

RX-8020VBK

CDTO

LIN

RIN

LOUT1

ROUT1

LOUT2

ROUT2

LOUT3

ROUT3

ADC HPF

ADC HPF

DAC DA TTLPF

DAC DA TTLPF

DAC DA TTLPF

DAC DA TTLPF

DAC DA TTLPF

DAC DA TTLPF

Audio

I/F

MCLK

SDOUT

BICK

LRCK

SDIN1
SDIN2
SDIN3

uP I/F

Clock

Recovery

DAIF

Decoder

DEM

X'tal

Oscillator

Clock

Generator

Input

Selector

XTI

XTO

MCKO

TX

RX1
RX2
RX3
RX4

SDOUT

BICK
LRCK

SDIN1
SDIN2
SDIN3

IS63LV102410K-X (IC512, IC513, IC514) : CMOS SRAM

1. Pin layout 2. Pin function

1

A0
A1
A2
A3

CE
I/O0
I/O1

Vcc

GND

I/O2
I/O3

WE

A4
A5
A6
A7

2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

A16
A15
A14
A13
OE
I/O7
I/O6
GND
Vcc
I/O5
I/O4
A12
A11
A10
A9
A8

Symbol
A0-A16

CE
OE

WE

I/O1-I/O7

Vcc

GND

Function
Address Input
Chip Enacble Input
Output Enable Input
Write Enable Input
Bidirectional Ports
Power
Ground

3. Block diagram

A0-A16

VCC
GND

I/O0-I/O7

CE
OE
WE

DECODER

I/O

DATA

CIRCUIT

CONTROL

CIRCUIT

128K X 8

MEMORY ARRAY

COLUMN I/O

1-15

RX-8020VBK

MB90088 (IC203) : Display controller

1.Pin layout

YIN

VIN
CIN
AVcc

IOUT

VOC
Vcc
EXS

XS

HSYNC

VSYNC

EXHSYN
EXVSYN

Vss

2.Block diagram

SIN

SCLK

CS

EXHSYN

EXVSYN

1
2
3
4
5
6
7
8
9
10
11
12
13
14

28

AVss

27

YOUT

26

VOUT

25

COUT

24

CS

23

SIN

22

SCLK

21

TEST

20

BOUT

19

ROUT

18

GOUT

17

VOB

16

XD

15

EXD

Serial Input
Control

H/V Separate

Each Control, Data

VIN
YIN

CIN

HSYNC

VSYNC

XS

EXS

XD

EXD

NTSC/PAL
Signal OSC

Display Memory
Control

VRAM

4FSC CLK
OSC

Dot CLK
OSC

Each Block

Each Block

Analog SW

Video Signal
OSC

Output
Control

CGROM

VOUT
YOUT
COUT

BOUT
ROUT
GOUT
IOUT
VOC
VOB

1-16

3.Functions

RX-8020VBK

pin

Symbol I/O

no

YIN

1

VIN

2

CIN

3
4

AVcc

5

IOUT

6

VOC

7

Vcc

8

EXS

9

XS

10

HSYNC

11

VSYNC

12

EXHSYN

13

EXVSYN

14

Vss

EXD

15
16

XD

17

VOB

18

GOUT

19

ROUT

20

BOUT

21

TEST

22

SCLK

23

SIN

24

CS

25

COUT

26

VOUT

27

YOUT

28

AVss

Function

I

Lux signal Input terminal for Superinpause indication

I

Composite video signal input terminal for Superinpause indication
Contrast signal input terminal for Superinpause indication

I

-

Analog power supply terminal

O

Color (Lux) signal output terminal
Character output terminal

O

Power supply terminal

­Clock generator outside circuit terminal for color burst

I
O
O

Horizontal signal output terminal

O

Vertical signal output terminal

EXT horizontal signal input terminal

I

EXT vertical signal input terminal

I

GND

­Dot clock generator outside circuit signal terminal for indication

I
O

Character & background signal output terminal

O

Color signal (Green, Red, Blue)

O

I

Test signal input terminal
Shift clock input terminal for serial transmission

I

Serial data input terminal

I

Chip select terminal

I

Contrast signal output terminal

O

Composite video signal output terminal

O
O

Lux signal output terminal
Analog GND terminal

-

NJM2285V-W (IC202) : 2-input 3-channel video switch

IN1A GND1 IN2B V CTL2 IN2A GND3 IN3B

16 15 14 13 12 11 10 9

BIAS TYPE

L

H

1 2 3 4 5 6 7 8

IN1B CTL1 OUT1 GND2 OUT2 OUT3 CTL3 IN3A

+

CLAMP TYPE

H

L

CLAMP TYPE

H

L

1-17

RX-8020VBK

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
6

TUNED

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

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

TUNING
DRIVE

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

12 13

FF
19k

/

LS

Function

17 16

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

1-18

LC72136N (IC121) : PLL frequency synthesizer

1. Pin layout

FM/ST/VCO

2. Block diagram

XT

FM/AM

CE

CLOCK

DO

AM/FM

SDIN

DI

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-8020VBK

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

2B

C

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

7821113

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

Pin
No.

12

IFCONT

13
14

15

16
17

18

19

LPFOUT

20
21
22

Symbol

IFIN

AMIN

FMIN

VCC

PD

LPFIN

GND

XT

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

O

frequency Height than Reference frequency.
L: Low Agreement: Height impedance)
Input for active lowpassfilter of PLL

I

Output for active lowpassfilter of PLL

O

Connected to GND

­X'tal oscillator(75KHz)

I

1-19

RX-8020VBK

PCM2702ED-X (IC410) : USB D/A converter

1.Pin layout

XTI

1

V

DD

C

2

DGNDC

3

DD

V

4

DGND

5

D+

6

D-

7

V

BUS

8

DGND

9

PLYBCK

10

SSPND

11

ZERO

12

TEST3

13

TEST2

14

3.Pin function

XTO

VccP

AGNDP

VccL

AGNDL

OUT

V

Vcc

COM

V

AGND

V

OUT

AGNDR

VccR
TEST0
TEST1

2. Block diagram

PLYBCK

28
27
26
25
24
23

L

22
21
20
19

R

18
17
16
15

D+

D-

VBUS

DGNDU

VDDC

DGNDC

SSPDN

USB I/F

MCLK

USB clock

generator

Crystal OSC

XTI

XTO

USB packet
data

WRCLK

FIFO

SPACT

audio
data

RDCLK

ZERO

8x

Oversampling

Digital Filter

System Clock

Audio clock

generator

DGNDP

VDDP

Multi-level

Delta-Sigma

Modulator

VccL

AGNDL

VccR

AGNDR

DAC

DAC

Power supply

VCC AGND VDD DGND

Low-pass

Filter

Low-pass

Filter

VOUTL

VCOM

VOUTR

Pin No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28

Symbol
XTI

DD

C

V
DGNDC

DD

V
DGND
D+
D-

BUS

V
DGNDU
PLYBCK
SSPND
ZERO
TEST3
TEST2
TEST1
TEST0
VccR
AGNDR

OUT

R

V
AGND

COM

V
Vcc
V

OUT

L
AGNDL
VccL
AGNDP
VccP
XTO

I/O

IN

-

-

-

­I/O
I/O

IN

-

OUT
OUT
OUT

IN
IN
IN
IN

-

-

OUT

-

-

-

OUT

-

-

-

-

OUT

Function
Crystal Oscillator Input.
Digital Power Supply for Clock Generator, +3.3V.
Digital Ground for Clock Generator.
Digital Power Supply, +3.3V.
Digital Ground.
USB Differential Input/Output Plus.
USB Differential Input/Output Minus.
USB Bus Power (This pin NEVER consumes the USB bus power).
Digital Ground for USB Transceiver.
Playback flag, active LOW. (LOW: playback, HIGH: idle).
Suspend flag, active LOW. (LOW: suspend, HIGH: operational).
Zero flag, (LOW: Normal, HIGH: ZERO).
Test pin 3. Connect to digital ground.
Test pin 2. Connect to digital ground.
Test pin 1. Connect to digital ground.
Test pin 0. Connect to digital ground.
Analog Supply for R-channel, +5V.
Analog Ground for R-channel.
Analog Output for R-channel.
Analog Ground.
Common for DAC.
Analog Supply, +5V.
Analog output for L-channel.
Analog Ground for L-channel.
Analog Supply for L-channel, +5V.
Analog Ground for PLL.
Analog Supply for PLL, +5V.
Crystal Oscillator Output.

(1)

(2)

(2)
(2)
(2)
(2)

1-20

Note:
(1) 3.3V tolerant.
(2) Schmitt trigger input with internal pull-down, 5V tolerant.

39VF0207CWHP02 (IC511) : EEPROM

1. Pin layout

RX-8020VBK

A11

A9

A8
A13
A14
A17

WE#

VDD

NC
A16
A15
A12

A7
A6
A5
A4

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

2. Block diagram

Memory Address

CE#
OE#

WE#

X-Decoder

Address Buffer & Latches

Control Logic

32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17

OE#
A10
CE#
DQ7
DQ6
DQ5
DQ4
DQ3
Vss
DQ2
DQ1
DQ0
A0
A1
A2
A3

EEPROM

Cell Array

Y-Decoder

I/O Buffers & Data Latches

DQ7~DQ0

3. Pin function
Symbol FunctionPin name

AMS- A0

DQ7- DQ0

CE#
OE#
WE#
VDD

Vss
NC

Address Inputs

Data Input/Output

Chip Enable
Output Enable
Write Enable
Power Supply

Ground
No Connection

To provide memory address. During Sector-Erase AMS-A12 address
lines will select the sector.
To output data during read cycles and receive input data during write
cycles. Data is internally latched during a write cycle. The outputs
are in tri-state when OE# or CE# is high.
To active the device when CE# is low.
To gate the data output buffers.
To control the write operations.
To provide power supply voltage: 3.0-3.6V for SST39LF512/010/020/040

2.7-3.6V for SST39VF512/010/010/040

Unconnected Pins

1-21

RX-8020VBK

TC9162AF (IC380) : Analog switch

1.Pin layout

VSS
L-S1
L-S2

L-COM1

L-S3
L-S4

L-COM2

L-S5
L-S6

L-COM3

L-S7

L-COM4

GND

ST

1
2
3
4
5
6
7
8
9
10
11
12
13
14

2.Block diagram

2

L-S1

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

GND

1

14

VDD

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

10

11

12

13

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

DA TA

3

4

5

6

7

8

LEVEL SHIFTER

9

LATCH CIRCUIT

LATCH CIRCUIT

LEVEL SHIFTER

1-22

SHIFT REGISTER

15

CK

TC9163AF-X (IC371) : Analog switch

1.Pin layout

RX-8020VBK

VSS
L-S1
L-S2
L-S3

L-COM1

L-S4
L-S5
L-S6

L-COM2

L-S7
L-S8

L-COM3

GND

ST

1
2
3
4
5
6
7
8
9
10
11
12
13
14

2.Block diagram

2

L-S1

28
27
26
25
24
23
22
21
20
19
18
17
16
15

VDD
R-S1
R-S2
R-S3
R-COM1
R-S4
R-S5
R-S6
R-COM2
R-S7
R-S8
R-COM3
DATA
CK

VSS

GND

1

14

VDD

28

27

R-S1

L-S2

L-S3

L-COM1

L-S4

L-S5

L-S6

L-COM2

L-S7

L-S8

L-COM3

ST

10

11

12

13

3

4

5

6

7

8

9

LEVEL SHIFTER

LATCH CIRCUIT

LATCH CIRCUIT

LEVEL SHIFTER

26

25

24

23

22

21

20

19

18

17

16

R-S2

R-S3

R-COM1

R-S4

R-S5

R-S6

R-COM2

R-S7

R-S8

R-COM3

DA TA

SHIFT REGISTER

15

CK

1-23

RX-8020VBK

TC9164AF-X (IC302) : Analog switch

1.Pin layout

VSS
L-S1
L-S2
L-S3
L-S4

L-COM1

L-S5
L-S6

L-COM2

L-S7
L-S8

L-COM3

ST

GND

1
2
3
4
5
6
7
8
9
10
11
12
13
14

28
27
26
25
24
23
22
21
20
19
18
17
16
15

VDD
R-S1
R-S2
R-S3
R-S4
R-COM1
R-S5
R-S6
R-COM2
R-S7
R-S8
R-COM3
DATA
CK

2.Block diagram

2

L-S1

3

L-S2

4

L-S3

5

L-S4

L-S5

L-S6

L-S7

L-S8

6

7

8

9

10

11

L-COM1

L-COM2

VSS

LEVEL SHIFTER

GND

1

14

LATCH CIRCUIT

VDD

28

LATCH CIRCUIT

LEVEL SHIFTER

27

26

25

24

23

22

21

20

19

18

R-S1

R-S2

R-S3

R-S4

R-COM1

R-S5

R-S6

R-COM2

R-S7

R-S8

1-24

L-COM3

ST

12

13

SHIFT REGISTER

17

16

15

R-COM3

DA TA

CK

TC9459F (IC381, IC382, IC383, IC384) : Electronic volume control

RX-8020VBK

1.Pin layout

VSS
L-OUT
NC

L-ch

L-IN
L-LD1
L-LD2
L-A-GND
NC
CS1
NC
GND
CK

2. Block diagram

VSS

1

1
2
3
4
5
6
7
8
9
10
11
12

24
23
22
21
20
19
18
17
16
15
14
13

VDD
R-OUT
NC
R-IN
R-LD1
R-LD2
R-A-GND
NC
CS2
NC
STB
DATA

R-ch

L-OUT

NC

L-1N

L-LD1

L-LD2

L-A-GND

NC

CS1

NC

GND

CK

9

10

11

12

2

3

4

5

6

7

8

50k /
915TEP

VR

L-ch 7 to 91
decoder
L-ch data
latch circuit

Shift register (24BIT)

Level shift circuit

VDD

24

Same as L-ch
Circuit

R-ch 7 to 91
decoder
R-ch data
latch circuit

23

22

21

20

19

18

17

16

15

14

13

R-OUT

NC

R-IN

R-LD1

R-LD2

R-A-GND

NC

CS2

NC

STB

DATA

3.Pin function

Pin No.
1
2
3
4
5
6
7
8
9
10
11
12

Symbol
VSS
L-OUT
NC
NC
L-LD1
L-LD2
L-A-GND
NC
CS1
NC
NC
CK

Function
Negative power supply pin
Volume output pin
No connection
No connection
Loudness tap output pin
Loudness tap output pin
Analog GND pin
No connection
Chip select input pin
No connection
No connection
Clock input pin

Pin No.
13
14
15
16
17
18
19
20
21
22
23
24

Symbol
DA TA
STB
NC
CS2
NC
R-A-GND
R-LD2
R-LD1
R-IN
NC
R-OUT
VDD

Function
Data input pin
Strobe input pin
No connection
Chip select input pin
No connection
Analog GND pin
Loudness tap output pin
Loudness tap output pin
Volume input pin
No connection
Volume output pin
Positive power supply pin

1-25

RX-8020VBK

BA15218F (IC303, IC304, IC372, IC386, IC396, IC397, IC398, IC399, IC521, IC522, IC523,
IC524, IC525, IC526, IC528, IC529, IC530) : Op amp.

1OUT1

2-IN1

-

8

7

V

CC

OUT2

1

3+IN1

+

6

-

-IN2

2

5V

EE

4

+

+IN2

BA7625 (IC201, IC242) : Video selector

1. Block diagram 2. Truth table

MONITOR OUT

GND

IN5

GND

IN4

CTL E

IN3

CTL D

1

2

3
4

5

6

7
8

logic

logic

16

15

14

13

12

11

10
11

IN1

CTL A

VOUT 1

CC

V

IN2

CTL B

VOUT 2
CTL C

A B E MONITOR OUT

LL
HL
LH
H H L IN4
HHH

C D E VOUT1

LL
HL
LH
H H L IN4
HHH

C D E VOUT2

LL
HL
LH
H H L IN4
H H H IN5

*
*
*

*
*
*

*
*
*

IN1
IN2
IN3

IN5

-­IN2
IN3

IN5

IN1

-­IN3

BA7626 (IC241) : Video selector

1. Block diagram

MONITOR OUT

1-26

GND

IN5

GND

IN4

CTL E

IN3

CTL D

1

2

3
4

5

6

7
8

logic

logic

16

15

14

13

12

11

10
11

IN1

CTL A

VOUT 1

V

CC

IN2

CTL B

VOUT 2
CTL C

2. Truth table

A B E MONITOR OUT

LL

HL

LH
H H L IN4
HHH

C D E VOUT1

LL
HL

LH
H H L IN4
HHH

C D E VOUT2

LL
HL

LH
H H L IN4
H H H IN5

*
*
*

*
*
*

*
*
*

IN1
IN2
IN3

IN5

-­IN2
IN3

IN5

IN1

-­IN3

BU2092 (IC402) : Port expander

1.Pin layout

RX-8020VBK

1

Vss

DATA

CLOCK

LCK

Q0

Q1

Q2

Q3

Q4

2

3

4

5

6

7

8

9

2.Pin function

CONTROL

CIRCUIT

12BIT SHIFT RESISTER

12BIT STRAGE RESISTER

OUTPUT BUFFER(OPEN DRAIN)

17

16

15

14

13

12

11

10

18

Vdd

OE

Q11

Q10

Q9

Q8

Q7

Q6

Q5

Pin No.

1
2
3
4

5~16

17
18

Symbol

Vss

DATA

CLOCK

LCK

Q0~Q11

OE

Vdd

I/O

­I
I
I

O

I

-

NJM2121M-X (IC527) : Op amp.

1. Block diagram

SW. CONTROL

1

8

Function

Connect to GND
Serial Data input
Shift Clock of Data
Latch Clock of Data
Parallel Data Output

Latch Data L H
OUTPUT ON OFF

Output Enable
Power Supply

V+

A +INPUT

A -INPUT

V-

2
3
4

7

- +

- +

B +INPUT

6

B -INPUT

5

OUTPUT

1-27

RX-8020VBK

NJM4580DD (IC301) : LPF, Mic and headphone amp.

1.Pin layout

2.Block diagram

+

V

INPUT

+

A OUT

A -IN

A +IN

V

1

2

A

3

-

4

(TOP VIEW)

B

8

7

6

5

+

V

B OUT

B -IN

B +IN

OUTPUT

-

V

NJU7241F33 (IC411) : Voltage regulator

PIN FUNCTION

1

2

3

5

4

1. GND

2. V

IN

3. VOUT

4. +NC

5. STB

TC7SET32FU (IC582) : 2 input or gate

IN B

1

2

IN A

54VCC

1-28

GND

3

OUT Y

UPD784215AGC188 (IC581) : CPU

1.

Pin

layout

75 ~ 51

RX-8020VBK

76

~

100

1 ~ 25

50

~

26

2. Pin function

Pin No. Symbol Function

1~8

9
10
11
12

13

14

15, 16

17
18
19

20~22

23
24
25
26
27
28
29

30~32

33

34, 35

36
37
38
39
40
41

42
43
44
45
46
47
48
49

VDD

X2
X1

VSS

XT2
XT1

INT0
INT1

DZF

AVDD

AV REF0

CS1
CS2
CS3
CS4

AVSS

AV REF1

RX

TX

DSP COM

DSP STS
DSP CLK

DSP RDY

MISO
MOSI

SCK

HREQ

SS

I/O Pin No. Symbol FunctionI/O

-

O

+3.0V
Main system clock input
Main system clock input

I

GND
OPEN
Connect to VSS

I
I

Error input1 (ditect UNLOCK)

I

Error input2 (ditect Non Audio)

I

GND

I
I

The same potential as VDD
The same potential as VSS

I

Chip select input port

I

Chip select input port

O

Chip select input port

I

Chip select input port

I
I

The same potential as VSS

O

The same potential as VDD
For flash write

O

For flash write

O
O

Command (serial 1)

I

Status (Serial 1)

O

Clock (Serial 1)

I

Ready

I

O

Data in (Serial 0)

I

Data out (Serial 0)

O

Clock (Serial 0)

O

HREQ

I

System slave select

O

50,51

52
53
54
55
56
57

58~63

64
65
66
67
68
69
70
71
72

73~75

76
77
78

79, 80

81

82, 83

84
85
86
87
88

89~93

94

95~100

DSP_RST

DA_CS

PD_DA

PD

CSTI

CDTO

CCLK

C_CS
DEBUG1
DEBUG2
DEBUG3

GEBUG4

GND

EQ

CTR_TONE

3D

VDD

ANA_TT

LFE_MIX

LFE_CONT

S_MUTE

TEST

O

DSP RESET

O
O

Chip select output

O
O

Power down output (RESET)

O

Power down output (RESET)

O
O

Data out

O

Data in

I

Clock

O

Chip select output

O

Debug out port

O

Debug out port

O

Debug out port

O
O

Debug out port

GND
O
O

EQ
O

Center tone
O

3D-Phonic
O

+3.0V
O
O

ANALOG./T.TONE
O

LFE MIX CONTROL
O

LFE OUT CONTROL
O
O

S.MUTE
O

Usual "VSS"
O

1-29

RX-8020VBK

AK4382AVT-X (IC572) : D/A converter

1
2
3
4
5
6
7
8

3. Pin function
Pin No.

1
2
3
4
5
6
7
8

9
10
11
12
13
14
15
16

16
15
14
13
12
11
10
9

Symbol

MCLK

BICK
SDTI

LRCK

PDN
CSN

CCLK

CDTI

AOUTR-

AOUTR+

AOUTL-

AOUTL+

VSS
VDD

DZFR

DZFL

2. Block diagram1. Pin layout

CSN

CCLK

CDTI

LRCK

BICK

SDTI

I/O

O
O
O
O

O
O

MCLK

VDD
VSS

DZFL

uP

Interface

De-empahsis

Control

Clock

Divider

DZFR
AOUTL+

AOUTL-

Audio

8X

Interpolator

Modulator

SCF

Data

Interface

8X

Interpolator

Modulator

SCF

AOUTR+
AOUTR-

PDN

Function
I
I
I
I
I
I
I
I

Master Clock Input Pin

Audio Serial Data Clock Pin

Audio Serial Data Input Pin

L/R Clock Pin

Power-Down Mode Pin

Chip Select Pin

Control Data Input Pin

Control Data Input Pin

Rch Negative Analog Output Pin

Rch Positive Analog Output Pin

Lch Negative Analog Output Pin

Lch Positive Analog Output Pin

-

-

Ground Pin

Power Supply Pin

Rch Data Zero Input Detect Pin

Lch Data Zero Input Detect Pin

TC7S04FU (IC502, IC503) : CMOS Inverter

1-30

NC

IN A

GND

1

2

3

5

4

VCC

OUT Y

NJM2580M-X (IC390) : Video amp.

1. Block diagram

RX-8020VBK

VIN1

GND1

VIN2

GND2

VIN3

GND3

PowerSave

14

13

12

11

10

9

8

V+1

VOUT1

V+2

VOUT2

V+3

VOUT3

VSAG

1

BIAS

2

3

BIAS

4

5

CLAMP

6

7

6dB

AMP

6dB

AMP

6dB

AMP

75

Driver

75

Driver

75

Driver

BIAS

TC74HC4053AF (IC388, IC389) : Multiplexe

1. Pin layout 2. Truth table

1Y
0Y

Z-COM

0Z

INH

V

GND

EE

1
2

IZ

3
4
5
6
7
8

16
15
14
13
12
11
10
9

Vcc
Y-COM
X-COM
1X
0X
A
B
C

CONTROL INPUTS

INHIBIT

L
L
L
L
L
L
L
L
H

X: Don't Care.

C

B
L
L
L
L

H
H
H
H
X

A

L

K

L

H

H

K

H

H

L

K

L

H

H

K

H

H

X

X

1-31

RX-8020VBK

VICTOR COMPANY OF JAPAN, LIMITED

AUDIO & COMMUNICATION BUSINESS DIVISION
PERSONAL & MOBILE NETWORK BUSINESS UNIT. 10-1,1chome,Ohwatari-machi,Maebashi-city,371-8543,Japan

(No.21161)

Printed in Japan
200210