JVC RX-7020-RBK Service manual

RX-7022RSL/RX-7020RBK

SERVICE MANUAL

AUDIO/VIDEO CONTROL RECEIVER

A/V CONTROL RECEIVER

CATV/DBS VCR TV AUDIO

DVD MULTIDVD

CD

TAPE/CDR

TV/DBS VCR PHONO

TREBLE

BASS

SURROUND

ANALOG/DIGITAL

MODE INPUTON/OFF

– CENTER +

BASS BOOST EFFECT

231

MENU

TEST – REA R•L +

SOUND

564

ENTER

– REAR•R +

DIMMER

897/P

– SUB WOOFER +

MUTING

0

RETURN FM MODE 100 CATV/DBS CONTROL

CONTROL

CH TV VOL

TV/VIDEO

TA/NEWS/INFO

/REW FF/

TUNING

REC

PTY – PTY SEARCH – PTY

PAUSE

DISPLAY

MODE

RM-SRX7022R REMOTE CONTROL

FM/AM

SLEEP

VOLUME

CONTROL

RX-7022RSL

RX-7020RBK

RX-7022R

FM/AM TUNING

SURROUND ON/OFF

SURROUND MODE

FM/AM PRESET FM MODE

INPUT

ANALOG/DIGITAL

INPUT ATT

SPEAKERS ON/OFF

12

MEMORY

BASS BOOST

+1010

+

STANDBY

STANDBY/ON

PHONES

AUDIO/VIDEO CONTROL RECEIVER

DVD VCR

DVD MULTI

CD

TAPE/CDR

SOURCE NAME

ADJUST

TV SOUND/DBS

SOURCE NAME

PHONO

FM/AM

CONTROL

DOWN UP

SETTING

Area suffix

B ----------------------------- U.K. E --------- Continental Europe EN ---------- Northern Europe EV ------------ Eastern Europe

RX-7020RBK

Area suffix

E --------- Continental Europe

DISPLAY MODEDIMMER PTY SEARCH TA/NEWS/INFO

COMPULINK

Remote

MASTER VOLUME

Model panel color top cover RX-7022RSL silver silver RX-7020RBK black black

Contents

Safety precautions --------------------------------------------------------1-2 Disassembly method -----------------------------------------------------1-3 Adjustment method -------------------------------------------------------1-8 Description of major ICs -------------------------------------------------1-9~24

No.21101

May. 2002

RX-7022RSL/RX-7020RBK

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-7022RSL/RX-7020RBK

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, 3)

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

Disconnect the card wire from connector CN402

1. CN403 on 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

Top cover

A

2

A

B

Fig.1

2

Front panel assembly

C

CN201

Power supply

board

Remove the three screws C attaching the front panel

3. 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 twenty-seven screws E attaching the

2. 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

F

CN403

D

E

Rear panel

Fig.2

Front panel assembly

Fig.3

E

F

Fig.4

D

Cord stopper

F

E

1-3

RX-7022RSL/RX-7020RBK

g

Removing each board connected to the rear side of the audio board

(See Fig.5 to 9)

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.

Disconnect the audio input board, DVD board Video

3. board and the S video board from connector CN421, CN431, CN441 and CN461 on the audio board.

Disconnect the tuner board from connector CN411

4. on the audio board.

Audio

board

Tie band

DSP

board

CN481 CN421

Audio

input

board

CN431

DVD

board

Video board

CN441

Fig.5

CN461

S Video

board

Tie band

CN411

Tuner

board

DSP board

CN421

CN431

Tie band

Fig.8

Fig.9

CN441

CN461

S Video

board

Tuner board

CN411

CN481

Audio

board

CN421

input

board

CN431

DVD

Fig.6

Fi

Video board

CN441

.7

1-4

Removing the audio board (See Fig.10)

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

Disconnect the card wire from connector CN402

1. CN403 on the audio board.

Disconnect the relay board from the audio board and

2. the power supply board. (CN291, CN491)

Disconnect the harness from connector CN471,

3. CN472, CN473.

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.11)

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

CN403

CN473

G

CN402

G

Audio board

I

J

CN471

CN472

RX-7022RSL/RX-7020RBK

Relay board

power supply board

CN291

Power transformer

Power / Fuse

board

G

CN491

Fig.10

I

H

CN241

J

CN251

Disconnect the harness from connector CN241 and

1. CN203 on the power supply board respectively.

Disconnect the harness from connector CN251 on

2. the power transformer board .

Remove the four screws I and the two screws J

3. attaching the main board.

Removing the heat sink (See Fig.12 to 14)

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

Remove the two screws K attaching the heat sink to

1. the reverse side of main board.

Disconnect the for connectors with each amp. board,

2. and remove the main board.

Remove the four screws M and ten screws L

3. attaching the heat sink.

I

Main

board

I

K

Rear Lch amp. board Rear Rch amp. board

Fig.11

Fig.12

Heat sink

CN203

K

Main board

rear side

Front Rch amp. board

Front Lch amp. board

Center amp. board

Heat sink

M

L

Fig.14

L

Main board

M

CN802

CN801

CN302

Fig.13

CN301

CN901

1-5

RX-7022RSL/RX-7020RBK

Removing the power transformer

(See Fig.15)

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

Cut off the tie band fixing the harness.

1. Unsolder the s

2. connected to the power transformer.

Unsolder the s

3. the FW201 on the power transformer board.

Remove the four screws N attaching the power

4. transformer.

older points

the two harnesses

the harness connected to

Removing the power / fuse board

(See Fig.15)

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

Remove the screw O attaching the power / fuse

1. board.

Power transformer board

Solder points (from the power / fuse board)

Power cord

Fig.15

Power supply board

FW201 Solder

points

N

Power transformer

N O

Power / Fuse board

Solder points

Unsolder the s

2. harnesses connected to the power / fuse board.

older points

the power cord and other

Removing the power supply board

(See Fig.16, 17)

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 supply board (If necessary, cut off the band fixing the harness on the side of the base chassis).

Remove the three screws P attaching the power

3. supply board and pull out the power supply board from the front bracket backward.

Unsolder the s

4. connected to the power supply board.

older points

the three harnesses

Power supply board

CN201

CN241

CN203

CN291

bracket

P

Fig.16

Nut

Headphone jack

P

Solder

points

P

1-6

Tie band

Solder points

Fig.17

RX-7022RSL/RX-7020RBK

Removing the system control board / power switch board (See Fig.18 to 20)

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 Q attaching the power

2. switch board.

Disconnect the harness from connector CN714 on

3. the power switch board.

Remove the six screws R attaching the system

4. control board on the back of the front panel.

On the back of the front panel, release the six joints

5. 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.18

R

Joint

Nut

R

Front panel assembly

Volume knob

Power switch

board

Joint

Q

Joint

Hook

Joint

Fig.19

System control board

Fig.20

Hook

Joint

CN714

1-7

RX-7022RSL/RX-7020RBK

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 location TP301(Lch) , TP302(Rch) Adjustment part VR301(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.

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

2. Set the surround mode OFF.

3. 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.

4. For L-ch, connect a DC voltmeter between TP301's B216 and B217 (Lch) and, connect it between TP302's B218 and B219 (Rch).

5. 30 seconds later after power on, adjust VR301 for L-ch, or VR302 for R-ch so that the DC voltmeter value has 2.0mV.

* 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)

1-8

VR301 (Lch)

TP301(Lch)

Heat sink

Description of major ICs

TC9162AF (IC423) : Analog switch

1. Pin layout

28272625242322212019181716

RX-7022RSL/RX-7020RBK

15

2. Block diaglam

2

L-S1

3

L-S2

L-S3

L-S4

L-S5

L-S6

4

5

6

7

8

9

L-COM1

L-COM2

123

4

LEVEL SHIFTER

5

6

7

891011121314

VSS

GND

1

LATCH CIRCUIT

14

VDD

28

LATCH CIRCUIT

LEVEL SHIFTER

27

26

25

24

23

22

21

20

R-S1

R-S2

R-COM1

R-S3

R-S4

R-COM2

R-S5

R-S6

L-S7

ST

10

11

12

13

L-COM3

L-COM4

BA15218 (IC451) : Ope. amp.

1. Pin layout / Block diaglam

1OUT1

2-IN1

1

3+IN1

+

EE

4

-

2

+

SHIFT REGISTER

V

CC

8

OUT2

7

-IN2

6

+IN2

5V

19

R-COM3

18

R-S7

17

R-COM4

16

DA TA

15

CK

BA15218N (IC403) : Dual ope. amp.

1. Pin layout / Block diaglam

+

1

-

1 2 3 4 5 6 7 8

OUT1 +IN1 +IN1

+IN2 -IN2 OUT2

GND

2

-

Vcc

1-9

RX-7022RSL/RX-7020RBK

AK4527BVQP (IC601) : A/D,D/A converter

1.Pin layout

2. Pin function (1/2) No.

1

2

3

4 5 6 7 8 9 10 11

12

13

14 15 16 17

18

Symbol SDOS

OSKS

MIS

BICK LRCK SDTI1 SDTI2 SDTI3 SDTO D,AUX DFS

DEMI

DEMO

MCKO DVDD DVSS PD

XTS

4443424140393837363534

1 2 3 4 5 6 7 8 9 10 11

1213141516171819202122

I/O

I

SDTO Source Select Pin (Note 1)

Top View

Function

33 32 31 30 29 28 27 26 25 24 23

"L" : Internal ADC output, "H" : DAUX input

I

Control Mode Select Pin "L" : 3-wire Serial, "H" : I

-

Soft Mute Pin (Note 1), Connect to GND

2

C Bus

When this pin goes to "H", soft mute cycle is initialized. When returning to "L", the output mute releases.

I

Audio Serial Data Clock Pin

I/O

Input Channel Clock Pin

I

DAC1 Audio Serial Data Input Pin

I

DAC2 Audio Serial Data Input Pin

I

DAC3 Audio Serial Data Input Pin

O

Audio Serial Data Output Pin

-

Sub Audio Serial Data Input Pin, Connect to GND

-

Double Speed Sampling Mode Pin (Note 1) "L" : Normal Speed, "H" : Double Speed

-

Connect to GND No internal bonding.

-

Zero Input Detect Enable Pin, Connect to GND "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

I

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.

-

Test Pin, Connect to GND This pin should be connected to DVSS.

1-10

RX-7022RSL/RX-7020RBK

Pin function (2/2)

Symbol

No.

ICKS

19

ADIF

20

CAD1

21

CAD0

22

LOUT3

23

ROUT3

24

LOUT2

25

ROUT2

26

LOUT1

27

ROUT1

28

LIN-

29

LIN+

30

RIN-

31

RIN+

32

VREFL

33

OVF

VCOM

34

VREFH

35

AVDD

36

AVSS

37

XTI

38

XTO

39

P1S

40

CS

41

CSN

DIF1

42

SCL/CCLK

LOOP0

43

SAD/CDTI

CDTD

44

I/O

Connect to GND

-

Function

No internal bonding. Analog Input Format Select Pin, Digital Power Supply

"H" : Full-differential input, "L" : Single-ended input

Chip Address 1 Pin,

Chip Address 0 Pin,

DAC3 Lch Analog Output Pin

O

DAC3 Rch Analog Output Pin

O

DAC2 Lch Analog Output Pin

O

DAC2 Rch Analog Output Pin

O

DAC1 Lch Analog Output Pin

O

DAC1 Rch Analog Output Pin

O

Lch Analog Negative Input Pin

I

Lch Analog Positive Input Pin

I

Rch Analog Negative Input Pin

I

Rch Analog Positive Input Pin

I

Zero Input Detect 2 Pin (Note 2), Non

-

Connect to GND Connect to GND

Connect When the input data of the group 1 follow total 8192LRCK cycles with "0" input data, this pin goes to "H". Analog Input Overflow Detect Pin (Note 3)

O

This pin goes to "H" if the analog input of Lch or Rch is overflows. Common V oltage Output Pin,A VDD/2

O

Large external capacitor around 2.2uF is used to reduce power-supply noise. Positive Voltage Reference Input Pin,AVDD

Analog Power Supply Pin,4.5V~5.5V

Analog Ground Pin,0V

Zero Input Detect 1 Pin (Note 2), Non connect

When the input data of the group 1 follow total 8192 LRCK cycles with "0"

input data, this pin goes to "H". Master Clock Input Pin

I

Parallel / Serial Select Pin

"L" : Serial control mode, "H" : Parallel control mode

Audio Data Interface Format 0 Pin in parallel mode

I

Chip select pin in 3-wire serial control mode

I

This pin should be connected to DVDD at I2C bus control mode Audio Data Interface Format 1 Pin in parallel mode

I

Control Data Clock Pin in serial control mode

I

I2C = "L" : CCLK(3-wire Serial), I2C = "H" : SCL(I2CBus) Loopback Mode 0 Pin in parallel control mode

I

Enables digital loop-back from ADC to 3 DACs. Control Data Input Pin in serial control mode

I/O

I2C = "L" : CDTI(3-wire Serial), I2C = "H" : SDA(I2CBus) Loopback Mode 1 Pin (Note 1)

I

Enable all 3 DAC channels to be input from SDTII.

AK4527

Notes : 1. SDOS, SMUTE, DFS, and LOOP1 pins are ORed with register data if P/S = "L".

2. The group 1 and 2 can be selected by DZFM2-0 bit if P/S = "L" and DZFME = "L".

3. This pin becomes OVF pin if OVFE bit is set to "1" at serial control mode.

4. All input pins should not be left floating.

1-11

RX-7022RSL/RX-7020RBK

M62446FP (IC428) : 6ch master volume

1.Block Diagram

OUT4 OUT3 OUT2 OUT1

AVDD

SWIN

GNDS

SRin

SLin

GNDC

Cin

GNDR

Rin

GNDL

1 2 3 4 5 6 7 8

9 10 11 12 13 14

OUTPUT PORT

volume

MCU I/F

42 41 40 39 38 37 36 35 34 33 32 31 30 29

DVDD CLK DA TA LATCH DGND AGND SWout SRout SLout Cout Rout Lout AVSS CL1

Lin

BYPASSR

BYPASSL

LTRE LBASS3 LBASS2 LBASS1

15 16 17 18 19 20 21

tone

volume

tone

28 27 26 25 24 23 22

CL2 CR1 CR2 RTRE RBASS3 RBASS2 RBASS1

1-12

RX-7022RSL/RX-7020RBK

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

Symbol I/O

OUT4 OUT3 OUT2 OUT1 AVDD

SW IN

A.GND

RR IN RL IN

A.GND

C IN

A.GND

R IN

A.GND

L IN

LTRE LBASS3 LBASS2 KBASS1

CR2 RBASS2 RBASS3

RTRE

RBASS1

CR1

LL2 CL1

AVSS

L OUT R OUT C OUT

RL OUT RR OUT SW OUT

A.GND D.GND

VOL LACH

VOL DATA

VOL CLK

DVDD

M62446FP

Function

O O O O

I

I I

I

-

O

-

I

O

I

O O O O O O

-

I I I

-

BASS BOOST control terminal SURROUND control terminal VIDEO 2 control terminal VIDEO 1 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 Non connect Frequency adjustment terminal tone/treble Frequency adjustment terminal tone/bass Frequency adjustment terminal tone/bass Frequency adjustment terminal tone/bass Tone output terminal Frequency adjustment terminal tone/bass 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

1-13

RX-7022RSL/RX-7020RBK

MN101C35DJW (IC701) : System controller

1. Pin layout 100 76

1

75

2. Pin function (1/2) 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

VOL.JOG IN_1 VOL.JOG IN_2

DATA (PLL) CLK (PLL) DE (PLL)

VIDEO S/C DVD

VIDEO S/C VCR

VIDEO S/C DBS

DATA (RDS)

PROTECTOR IN

STEREO IN

DAVN (RDS)

COMMAND (DSP)

STATUS (DSP)

Symbol

VDD OSC2 OSC1

VSS

NC

KEY IN 1 KEY IN 2 KEY IN 3 KEY IN 4 KEY IN 5

INH IN

CS 1 CS 2

VREF+

RESET

CLK (RDS)

DCS IN

DCS OUT

VCR IN

VCR OUT

RM IN

TUNED IN

SELF DET

25

I/O

I I

I/O

O O

I I

I/O I/O

-

I I I I I I I I

-

I I

O

I

O

I

O

I/O

I I I I I I

O

I

51

26 50

Function

VOL.JOG IN_1 VOL.JOG IN_2 DATA (PLL) CLK (PLL) DE (PLL) VIDEO S/C DVD VIDEO S/C VCR Power supply +5V Connecting the crystal oscillator for system clock Connecting the crystal oscillator for system clock Connect to Connect to Non connect Connect to Connect to KEY INPUT 1 KEY INPUT 2 KEY INPUT 3 KEY INPUT 4 KEY INPUT 5 INH IN CHIP SELECT 1 CHIP SELECT 2 Power supply +5V VIDEO S/C DBS RESET INPUT RDS CLK OUT (RDS) DCS INPUT DCS OUTPUT A VLINK VCR IN A VLINK VCR OUT RDS DATA (RDS) PROTECTOR IN REMOCON INPUT TUNED IN (TUNER) STEREO IN (TUNER) RDS DAVN (RDS) SELF DET INPUT COMMAND (DSP) STATUS (DSP)

GND GND

(8MHz) (8MHz)

1-14

RX-7022RSL/RX-7020RBK

Pin function (2/2)

Pin No.

41 42 43 44 45 46 47 48

49 ~ 64

GRID16~GRID1

65 ~ 80

81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

100

Symbol

CLK DSP

READY RESET

RY S

RY C RY L/R1 RY L/R2

RY HP

SEG1~SEG16

NC NC NC NC NC NC NC

POWER

S MUTE

SW MUTE

TU MUTE

STB LED

SURROUND

DATA

CLK STB

LATCH

DA TA

CLK VPP

I/O

O O O O O O O O O O

-

O O O O O O O O O O O

-

MN101C35DJW

Function

CLK (DSP) READY (DSP) RESET (DSP) RELAY SURRUND RELAY CENTER RELAY FRONT 1 RELAY FRONT 2 RELAY HEADPHONE FL GRID SIGNAL CONTROL OUT FL SEGMENT SIGNAL CONTROL OUT Non connect Non connect Non connect Non connect Non connect Non connect Non connect POWER ON Relay Control SOUSE MUTE SUBWOOFER MUTE TUNER MUTE STANDBY LED SURROUND AUDIO SW DATA CLK (AUDIO SW) STB (AUDIO SW) LATCH (VOLUME) VOLUME DATA CLK (VOLUME) VPP

1-15

RX-7022RSL/RX-7020RBK

UPD784215AGC167 (IC671) : Dital signal controller

1.Pin layout ~

100 76

2.Pin function (1/2) Pin No.

1~8

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 45 46 47 48

AUTODAT A

DIGITAL0

CHANNEL

DSPCOM

MIDIO OUT

Symbol

VDD

X2 X1

VSS

XT2 XT1

RESET

LOCK

FORMAT

ERR

REST IN

AVDD

AVREF0

AVSS

AV REF1

RX

TX

DSPSTS DSPCLK DSPRDY

MIDIO IN

MICK MICS

1

~

25

~

26 50

I/O

-

Non connect

-

Power supply terminal

O

Connecting the crystal oscillator for system main clock

I

Connecting the crystal oscillator for system main clock

-

Connect to GND

O

Connecting the crystal oscillator for system sub clock

I

Connecting the crystal oscillator for system sub clock

I

System reset signal input

I