Jvc Kd-sx878r User manual

SERVICE MANUAL

CD RECEIVER

No.49542

Feb. 2000

Printed in Japan

200002(M)

VICTOR COMPANY OF JAPAN, LIMITED

MOBILE ELECTRONICS DIVISION,10-1,1Chome,Ohwatari-machi,maebashi-city,Japan

KD-SX878R

KD-S777R

(No.49542)

KD-SX878R

KD-S777R

KD-SX878R

KD-S777R

Area Suffix

E-------Continental Europe

Contents

Safety precaution

Preventing static electricity

Instructions

Location of main parts

Disassembly method

Adjustment method

Flow of functional

operation unit TOC read

1-2

1-3

1-4~

2-1

2-2

2-7

2-8

2-10

2-11

2-30

2-31

2-34

3-1~

Maintenance of laser pickup

Replacement of laser pickup

Description of major ICs

Block diagram

Standard schematic diagrams

Printed circuit board

Parts list

Item KD-SX878R KD-S777R

Connection to DAB

CD changer

Remote control unit

X

O

OptionOption X

Comparison table between the KD-SX878R and KD-S777R

COMPACT

DIGITAL AUDIO

40Wx4

TP

DISP

RPT

SSM

SCM

MO

RND

7 8 9 10 11 12

PTY

AM FM CD

/I

ATT

/

RDS

40Wx4

TP

DISP

RPT

SSM

SCM

MO

RND

7 8 9 10 11 12

PTY

CD

/I

ATT

/

RDS

CD

-CH

FM/AM CD

DAB

KD-SX878R

KD-S777R

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!CAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore,

pay attention to such burrs in the case of preforming repair of this system.

Safety precaution

!CAUTION Please use enough caution not to see the beam directly or touch it in case of an

adjustment or operation check.

Important for laser products

1.CLASS 1 LASER PRODUCT

2.DANGER : Invisible laser radiation when open and inter

lock failed or defeated. Avoid direct exposure to beam.

3.CAUTION : There are no serviceable parts inside the

Laser Unit. Do not disassemble the Laser Unit. Replace

the complete Laser Unit if it malfunctions.

4.CAUTION : The compact disc player uses invisible

laserradiation and is equipped with safety switches

whichprevent emission of radiation when the drawer is

open and the safety interlocks have failed or are de

feated. It is dangerous to defeat the safety switches.

5.CAUTION : If safety switches malfunction, the laser is able

to function.

6.CAUTION : Use of controls, adjustments or performance of

procedures other than those specified herein may result in

hazardous radiation exposure.

VARNING : Osynlig laserstrålning är denna del är öppnad

och spårren är urkopplad. Betrakta ej strålen.

VARO : Avattaessa ja suojalukitus ohitettaessa olet

alttiina näkymättömälle lasersäteilylle.Älä katso

säteeseen.

ADVARSEL : Usynlig laserstråling ved åbning , når

sikkerhedsafbrydere er ude af funktion. Undgå

udsættelse for stråling.

ADVARSEL : Usynlig laserstråling ved åpning,når

sikkerhetsbryteren er avslott. unngå utsettelse

for stråling.

REPRODUCTION AND POSITION OF LABELS

WARNING LABEL

DANGER : Invisibie laser radiation

when open and interlock or

defeated.

AVOID DIRECT EXPOSURE TO

BEAM (e)

VARNING : Osynlig laserstrålning är

denna del är öppnad och spårren är

urkopplad. Betrakta ej strålen.

VARO : Avattaessa ja suojalukitus

ohitettaessa olet alttiina

näkymättömälle lasersäteilylle.Älä

katso säteeseen.

ADVARSEL :Usynlig laserstråling

ved åbning , når

sikkerhedsafbrydere er ude af

funktion. Undgå udsættelse for

stråling.

CLASS 1

LASER PRODUCT

!CAUTION Please use enough caution not to

see the beam directly or touch it

in case of an adjustment or operation

check.

(f)

(s)

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Front bracket

CD mechanism

control board

Damper bracket

CD mechanism ass’y

FD screw

Feed motor ass’y

FD gear Pickup unit

Preventing static electricity

1.Grounding to prevent damage by static electricity

Electrostatic discharge (ESD), which occurs when static electricity stored in the body, fabric, etc.is discharged,

can destroy the laser diode in the traverse unit (optical pickup). Take care to prevent this when performing repairs.

2.About the earth processing for the destruction prevention by static electricity

Static electricity in the work area can destroy the optical pickup (laser diode) in devices such as CD players.

Be careful to use proper grounding in the area where repairs are being performed.

2-1 Ground the workbench

Ground the workbench by laying conductive material (such as a conductive sheet) or an iron plate over

it before placing the traverse unit (optical pickup) on it.

2-2 Ground yourself

Use an anti-static wrist strap to release any static electricity built up in your body.

3. Handling the optical pickup

1. In order to maintain quality during transport and before installation, both sides of the laser diode on the

replacement optical pickup are shorted. After replacement, return the shorted parts to their original condition.

(Refer to the text.)

2. Do not use a tester to check the condition of the laser diode in the optical pickup.The tester's internal power

source can easily destroy the laser diode.

4.Handling the traverse unit (optical pickup)

1. Do not subject the traverse unit (optical pickup) to strong shocks, as it is a sensitive, complex unit.

2. Cut off the shorted part of the flexible cable using nippers, etc. after replacing the optical pickup.For specific

details, refer to the replacement procedure in the text. Remove the anti-static pin when replacing the traverse

unit. Be careful not to take too long a time when attaching it to the connector.

3. Handle the flexible cable carefully as it may break when subjected to strong force.

4. It is not possible to adjust the semi-fixed resistor that adjusts the laser power. Do not turn it

Conductive material

(conductive sheet) or iron plate

(caption)

Anti-static wrist strap

Soldering

Attention when traverse unit is decomposed

1.Solder is put up before the card wire is removed from connector on

the CD substrate as shown in Figure.

(When the wire is removed without putting up solder, the CD pick-up

assembly might destroy.)

2.Please remove solder after connecting the card wire with

when you install picking up in the substrate.

*Please refer to "Disassembly method" in the text for pick-up and how to

detach the substrate.

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Location of main parts

Control unit

Main unit

CD mechanism

Display

Main board ISO connector

Main board assembly

Loading motor

Damper

Spindle motor

Feed motor

Optical

pick up unit

Mechanism relay board

RCA jack

Connector to front board

Antenna

jack

Changer control

connector

Front board

Power IC Tuner

pack

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Disassembly method

Removing the front chassis

(See Fig.1)

1. Insert a screwdriver to the joints a on the side of the front

chassis and two joints b on the right side, then detach the

front chassis toward the front side.

Removing the heat sink (See Fig.2 )

1. Remove the three screws A attaching the heat sink on

the left side of the body, and remove the heat sink.

Removing the bottom cover (See Fig.3 )

1.

2.

Turn the body upside down.

Insert a screwdriver to the two joints c and two joints d on

both sides of the body and the joint e on the back of the

body, then detach the bottom cover from the body.

Fig.1

Fig.2

Fig. 3

Front chassis

b

a

b

A

Heat sink

Regulator board

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Removing the main amplifier board assembly

(See Fig.4 and 5)

1.

2.

3.

4.

5.

Remove the front chassis.

Remove the bottom cover.

Remove the two screws B attaching the main amplifier

board assembly on the bottom of the body.

Remove the seven screws C attaching the main amplifier

board assembly on the back of the body.

Disconnect connector CN501 on the main amplifier board

assembly from the CD mechanism assembly.

Removing the CD mechanism assembly

(See Fig.6 )

1.

2.

3.

4.

Remove the front chassis.

Remove the bottom cover.

Remove the main amplifier board assembly.

Remove the three screws D attaching the CD mechanism

assembly from the top cover.

Removing the control switch board

(See Fig.7 and 8 )

1.

2.

3.

Remove the front chassis.

Remove the five screws E attaching the rear cover on the

back of the front panel unit.

Remove the control switch board from the front panel

unit.

Fig.4

Fig. 5

B

C

CD mechanism assembly

D

DD

Top cover

Fig. 6

E

Fig. 7

Fig. 8

Control switch board

CN501

Main amplifier board

(KD-SX878 ONLY)

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Prior to disassembling the CD mechanism, remove

the following parts.

The front panel unit and the front chassis

The heat sink

The bottom cover

The main amplifier board

The CD mechanism ass’y

*

Unsolder the part a and b on the CD mechanism

control board.

Remove the stator fixing the CD mechanism control

board and the damper bracket (To remove the stator

smoothly, pick up the center part).

Remove the screw B attaching the CD mechanism

control board.

Remove the CD mechanism control board in the

direction of the arrow while releasing it from the two

damper bracket slots d and the front bracket slot e.

Disconnect the flexible wire from connector on the

pickup unit.

1.

2.

Removing the CD mechanism control

board(See Fig.1 and 2)

Turn the FD gear in the direction of the

arrow to move the entire pickup unit to

the appropriate position where the

flexible wire of the CD mechanism unit

can be disconnected easily (Refer to

Fig.2).

ATTENTION:

Fig.1

Fig.2

Fig.3

Fig.4

Front bracket

CD mechanism

control board

Shift the lock

Flexible wire

Pickup unit

FD gear

CD mechanism control board

Loading motor Front bracket

Front bracket Pull outward

Pull outward

Flame

Damper bracket

f

c

AA

A

CD mechanism ass’y

g

C

g

C

a

e

b

B

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Prior to performing the following procedure, remove

the CD mechanism control board.

Remove the two springs g attaching the CD mechanism

ass’y and the front bracket.

Remove the two screws C and the front bracket

while pulling the flame outward.

Remove the belt and the screw D from the loading

motor.

*

1.

2.

3.

Removing the loading motor(See Fig.3 to 5)

Prior to performing the following procedure, remove

the CD mechanism control PWB and the front

bracket (loading motor).

Remove the three screws A and the damper

bracket.

Raise the both sides fix arms and move the fix plates

in the direction of the arrow to place the four shafts A

as shown in Fig.8 and 9.

Remove the CD mechanism ass’y and the two

springs f attaching the flame.

Remove the two screws E and both sides rear

damper brackets from the dampers. Detach the CD

*

1.

2.

3.

4.

Removing the CD mechanism ass’y

(See Fig.1, 6 to 9)

The CD mechanism ass’y can be

removed if only the rear damper

bracket on the left side is removed.

ATTENTION:

Fig.5

Fig.6

Fig.7

Fig.8

Fig.9

Rear damper bracket

Fix arm (R)

Damper

y

D

AA

Loading motor

Belt

Damper bracket

CD mechanism ass’y

Flame f

f

A

Fix plate (L)

hh

Rear damper bracket

Fix arm (L)

Damper

E

Fix plate(R)

E

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Prior to performing the following procedure, remove

the CD mechanism control board, the front bracket

(loading motor) and the CD mechanism ass’y.

Remove the two screws F and the feed motor ass’y.

*

1.

Removing the feed motor ass’y

(See Fig.10)

*Prior to performing the following procedure, remove

the CD mechanism control board, the front bracket

(loading motor), the CD mechanism ass’y and the

feed motor ass’y.

Detach the FD gear part of the pickup unit upward.

Then remove the pickup unit while pulling out the

part j of the FD screw.

1.

Remove the screw L attaching the nut push spring

plate and the pickup mount nut from the pickup unit.

Pull out the FD screw.

2.

Removing the pickup unit

(See Fig.10 and 11)

When reattaching the pickuap unit,

reattach the part k of the pickup unit,

then the part j of the FD screw.

ATTENTION:

Prior to performing the following procedure, remove

the CD mechanism control board, the front bracket

(loading motor), the CD mechanism ass’y and the

feed motor ass’y.

Turn up the CD mechanism ass’y and remove the

two springs i on both sides of the clamper arms.

Open the clamper arm upward.

Turn the turn table, and remove the two screws H

and the spindle motor.

*

1.

2.

Removing the spindle motor

(See Fig.12 and 13)

Fig.10

Fig.11

Fig.12

Fig.13

Spindle motor

ii

Pickup unit

Part j

FD screw

Feed motor ass’y

FD gear Pickup unit

Part k

F

Nut push spring plate Pickup mount nut

Pickup unit

FD screw

G

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Adjustment method

Test instruments required adjustment

1.Digital oscilloscope (100MHz)

2.AM Standard signal generator

3.FM Standard signal generator

4.Stereo modulator

5.Electric voltmeter

6.Digital tester

7.Tracking offset meter

8.Test Disc JVC : CTS-1000

9.Extension cable for check

Standard measuring conditions

Power supply voltage DC14.4V(10.5~16V)

Load impedance 20Kohm(2 Speakers connection)

Output level Line out (Vol. MAX)

How to connect the extension cable for adjusting

Standard volume position

Balance and Bass & Treble volume : Indication "0"

Loudness : OFF

FM

MW

LW

Dummy load

Exclusive dummy load should be used for AM,and FM.

For FM dummy load, there is a loss of 6dB between SSG output

and antenna input.The loss of 6dB need not be considered

since direct reading of figures are applied in this working

standard.

EXTGS004-26P

1~3 87.5MHz~108.0MHz

522kHz~1620kHz

144kHz~279kHz

Frequency Band

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When the pickup correctly moves

to the inner area of the disc

Microprocessor

commands

FMO

TC9462"53"

FEED MOTOR

+TERMINAL

IC501"10"

REST SW

When correctly focused

Focus Servo Loop ON

Power ON

Set Function CD

Disc inserted

Pickup feed to the inner area

YES

Laser emitted

Focus search

YES

Disc rotates

RF signal eye-pattern

remains closed

Tracking loop closed

RF signal eye-pattern

opens

TOC readout

Jump to the first track

Play

When the laser diode correctly

emits

Microprocessor

commands

SEL

TC9462

LD

CN501

"No disc"

display

When the disc correctly rotates

Microprocessor

commands

DMO

TC9462

Spindle

motor(-)

IC501"9"

Tracking Servo Loop ON

RF signal

Rough Servo Mode

CLV Servo Mode

(Program Area)

CLV Servo Mode

(Lead-In Area;

Digital: 0)

Flow of Functional Operation UnitTOC Read

$83 $82 $81

0V

6V

4V

2V

OFF

ON

5V

Hi-Z

FSO

TA2109 14 2.2V

$84

5V

0V

4V

0V

57

55

$84 $86 $ A200

5V

2.2V

0V

6V

3.2

2V

Rough

Servo

Acceleration Servo CLV

0.5 Sec0.5 Sec

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Feed section

Focus section

Spindle section

Tracking section

Is the voltage output at

IC541 pin "53" 5V or 0V? Is the wiring for IC541

(90)~(100) correct? Is 5V present at IC501

pin "20"?

Check CD 9V

and 5V.

Check the vicinity of

IC541.

Check the feed motor

connection wiring.

Is 6V or 2V present at

IC501 "10" and "11"?

Check IC501.

Is 4V present at both

sides of the feed motor?

Check the feed motor.

YES

NO YES NO

YES

NO

YES

YES YES

YES

YES YES

YES

When the lens is

moving:

4V

Does the S-search

waveform appear at

IC501 pins "6" and "7"?

Check the circuits in

the vicinity of IC501

pins "6","7"and"18".

Check the pickup and

its connections.

Is the disk rotated?

Does the RF signal

appear at TP1?

Is the RF waveform at TP1

distorted?

Proceed to the Tracking

section

Is 4V present at IC501

pins "8" and "9"?

Check the spindle motor

and its wiring

Check the circuits in the

vicinity of IC521 "19"~

"24" or the pickup

Is 4V present at IC541

pins "55" ?

Check IC521 and

IC541.

Check the vicinity of

IC501.

When the disc is rotated

at first:

Approx. 1.2V

Is the tracking error signal

output at IC521 "12"?

Check IC541.

Check the circuit in the

vicinity of IC521 pins

"2"~"12".

Check the pickup and

its connections.

NO

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Q

TEL 13942296513 QQ 376315150 892498299

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Maintenance of laser pickup

(1) Cleaning the pick up lens

Before you replace the pick up,please try to

clean the lens with a alcohol soaked cotton

swab.

(2) Life of the laser diode

When the life of the laser diode has expired,

the following symptoms will appear.

(1) The level of RF output (EFM output:ampli

tude of eye pattern) will be low.

(3) Semi-fixed resistor on the APC PC board

The semi-fixed resistor on the APC printed

circuit board which is attached to the pickup

is used to adjust the laser power. Since this

adjustment should be performed to match the

characteristics of the whole optical block,

do not touch the semi-fixed resistor.

If the laser power is lower than the specified

value, the laser diode is almost worn out, and

the laser pickup should be replaced.

If the semi-fixed resistor is adjusted while

the pickup is functioning normally, the laser

pickup may be damaged due to excessive current.

Is RF output

1.3 0.4Vp-p?

YES

NO

O.K

Replace it.

Replacement of laser pickup

Turn off the power switch and,disconnect the

power cord.

Replace the pickup with a normal one.(Refer

to "Pickup Removal" on the previous page)

Plug the power cord in, and turn the power on.

At this time, check that the laser emits for

about 3seconds and the objective lens moves

up and down.

Note: Do not observe the laser beam directly.

Play a disc.

Check the eye-pattern at TP1.

Finish.

w

.

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i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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“无奇不有”电路图网 http://www.xiaoyu163.com

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

S1

S2

S3

S4

S5

S6

S7

S8

S9

S10

S11

S12

S13

S14

S15

S16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

S48

S47

S46

S45

S44

S43

S42

S41

S40

S39

S38

S37

S36

S35

S34

S33

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

S17

S18

S19

S20

S21

S22

S23

S24

S25

S26

S27

S28

S29

S30

S31

S32

LCDCE

LCDCLK

LCDCE

OSC

Vss

VDD2

VDD1

INH

VDD

COM3

COM2

COM1

S52

S51

S50

S49

LC75823E (IC691) : LCD Driver

1. Pin Layout & Symbol

2. Pin Function

Pin No.

1 to 52

53 to 55

56

57

58

59

60

61

62

63

64

I/O

O

--

I

--

I/O

I

Segment output pins used to display data transferred

by serial data input.

Common driver output pins. The frame frequency is given

by : t0=(fosc/384)Hz.

Power supply connection. Provide a voltage of between

4.5 and 6.0V.

Display turning off input pin.

INT="L" (Vss) ----- off (S1 to S52, COM1 to COM3="L"

INT="H" (VDD)----- on

Serial data can be transferred in display off mode.

Used for applying the LCD drive 2/3 bias voltage

externally.

Must be connected to VDD2 when a 1/2 bias drive scheme

is used.

Used for applying the LCD drive 1/3 bias voltage

externally.

Must be connected to VDD1 when a 1/2 bias drive scheme

is used.

Power supply connection. Connect to GND.

Oscillator connection.

An oscillator circuit is formed by connecting an external

resistor and capacitor at this pin.

Serial data CE : Chip enable

interface connection

to the controller. CLK : Sync clock

DI :Transfer data

Symbol

S1 to S52

COM1 to COM3

VDD

INH

VDD1

VDD2

Vss

OSC

LCDCE

LCDCLK

LCDDI

Function

Description of major ICs

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

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UPD178076GF (IC701): SYSTEM CPU

1.Terminal layout

2.Block diagram

1

30

~

80

51

~

100 ~ 81

31 ~ 50

8-bit TIMER/

EVENT COUNTER 1

8-bit TIMER/

EVENT COUNTER 0

WATCHDOG TIMER

BASIC TIMER

SERIAL

INTERFACE 0

TO0/VTR-CONT

TI00/POWER

TI01/CD-ON

TI50/MUTE

TO50/NC

TI51/STAGE

TO51/NC

SI0/SB0/SDA0/NC

SO0/SB1/SDA1/VOL-DA

SCK0/SCL/VOL-CLK

SI1/JBUS-SI

SO1/JBUS-SO

SCK1/JBUS-SCK

STB/NC

BUSY/NC

SI3/NC

SO3/LCD-DA

SCK3/SCL/LCD-CLK

RESET

CPU

PERIPHERAL

VOSC

VCPU

TXD0/LM1

RXD0/LM0

INTP0/NC

INTP7/NC

VM45/VTR-LOGIC

REGOSC

REGCPU

GND0

GND1

BEEP0/BUZZER

BUZ/JAPAN

RESET

X1

X2

VDDPORT

GNDPORT

VDD

SERIAL

INTERFACE 1

SERIAL

INTERFACE 3

UART0

8INTERRUPT

CONTROL

BUZER OUTPUT

SYSTEM

CONTROL

VOLTAGE

REGULATOR

PLL

VOLTAGE

REGULATOR

PLL

FREQUENCY

COUNTER

A/D

CONVERTER

PORT 13

PORT 12

PORT10

PORT 7

PORT 6

PORT 5

PORT 4

PORT 3

PD178078

:3Kbyte

PD178076

:2Kbyte

RAM

PD178078

:60Kbyte

PD178076

:48Kbyte

RAM

78k/0

CPU

CPRE

16-bit TIMER/

EVENT COUNTER PORT 0

PORT 1

PORT 2

8

3

5

NC,JBUS-INT,SW1,

REMOCON,PS1,PS2,

DETACH,NC

KEY0,KEY1,KEY2,LEVEL,

SM,SQ,

JBUS-SI,JBUS-SO,

JBUS-SCK,12CDAI,

12CDAO,12CCLK

VTR-LOGIC,VTR-CONT,

POWER,CD-ON,MUTE,

STAGE,BUZZER,JAPAN

NC

NC,LCD-CE,SW2,SW3,

SW4,RST-SW,ENC1,ENC2

MONO,SEEK/STOP,

FM/AM,NC,

NC,LCD-DA,LCD-CLK,

JBUS-/O,LM0,LM1,BUCK,

CCE

SD/ST,NC,IFC

BUS0,BUS1,BUS2,BUS3,

RST

NC

AN10/KEY0

AN17/NC

AMIFC/NC

FMIFC/IFC

EO1

EO0

VCOL

VCOH

VDDPLL

GNDPLL

IC

GND2

AVDD

AVSS

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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UPD178076GF(1/2)

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

45

46

47

48

49

50

-

I

O

-

I

O

-

O

-

O

I

-

I

-

I

-

I

-

I

-

I

-

O

-

I

NC

JBUS-INT

JBUS-SI

JBUS-SO

JBUS-SCK

NC

VOL-DAI

VOL-DAO

VOL-CLK

NC

LCD-DA

LCD-SCK

JBUS-I/O

NC

LCD-CE

SW2

SW3

SW4

RST-SW

ENC1

ENC2

KEY0

KEY1

KEY2

LEVEL

AVDD

SM

SQ

NC

AVSS

REGCPU

VDD

REGOSC

X2

X1

GND0

SD/ST

GND2

NC

IFC

VDDPLL

OSC

NC

GNDPLL

AME0

FME0

IC

RESET

I/OSymbol FUNCTION

Non connection

JVC BUS COMMUNICATION LINE

Non connection

VOL IC Communication line

Non connection

LCD DRIVER COMMUNICATION LINE

JVC BUS OUTPUT SELECT

Non connection

LCD DRIVER COMMUNICATION LINE

CD MECHA SW

TRAVERSE MECHA REST SW

ENCORDER INPUT

KEY INPUT

AUDIO LEVEL INPUT

-

SIGNAL LEVEL METER INPUT

SQ Level input

Pull down

-

SYSTEM CLOCK

-

STATION DETECTOR & STEREO IND.

-

Non connection

IF COUNT INPUT

-

FM,AM OSC INPUT

Non connection

-

PLL ERROR OUTPUT FOR AM

PLL ERROR OUTPUT FOR FM

SYSTEM RESET

3.Pin function

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

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UPD178076GF(2/2)

NO.

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87

88

89

90

91

92

93

94

95

96

97

98

99

100

I

O

I

-

O

I/O

O

I

-

O

-

SW1

REMOCON

NC

TEL-MUTING

POWER

CD-ON

MUTE

STAGE 1

BUZZER

STAGE 2

NC

LM0

LM1

BUCK

CCE

BUS0

BUS1

BUS2

BUS3

RST

PS1

PS2

DETACH

RDSSCK

GND1

MONO

SEEK/STP

FM/AM

AFCK

RDS DATA

PLL MONITOR

NC

VDDPORT

GNDPORT

I/OSymbol FUNCTION

CD MECHA SW

REMOCON INPUT

Non connection

TEL MUTING DETECT INPUT

POWER CONT.

CD POWER CONT.

MUTE CONT

SW FOR SX878 AND S777

SW FOR USA AND Japan

PULL DOWN

Non connection

CD MECHA DRIVER CONT.

CD LSI COMMUNICATION LINE

ACC DETECTION INPUT

MEMORY DETECTION

DETACH DETECTION

RDS CLK INPUT

MONO BY FORCE

SWITCHING SEEK & STOP

BAND SW

AF CHECK OUTPUT

RDS DATA INPUT

PLL LOCK OUTPUT

Non connection

D-VDD

D-GND

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

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TA2109F-X (IC521) : RF amp.

1. Pin layout

2. Block diagram

3. Pin function

Pin function

24 13

1 12

1

2

3

4

5

6

7

8

9

10

11

12

-

I

O

I

O

I

O

Power supply input terminal

Main beam I-V amp input terminal

Sub beam I-v input terminal

Sub beam I-V input terminal

Monitor photo diode amp input terminal

Laser diode amp output terminal

Laser diode control signal input terminal

T. error balance adj. signal input terminal

Reference voltage output terminal

TE amp negative input terminal

TE error signal output terminal

Vcc

FNI

FPI

TPI

TNI

MDI

LDO

SEL

TEB

2VRO

TEN

TEO

12

11

10

9

8

7

6

5

4

3

2

1

13

14

15

16

17

18

19

20

21

22

23

24

SBAD

FEO

FEN

VRO

RFRP

RFIS

RFGO

RFGC

AGCI

RFO

GND

RFN

3.3k ohm 3.3k ohm

1.53k ohm

re=130 ohm

23.5k ohm 12k ohm

60k ohm

20k ohm

13k ohm

680 ohm

2.12k ohm

BOTTOM

PEAK

20k ohm

20k ohm 12k ohm 1.74k ohm 47k ohm

12k ohm

180k ohm

50uA

21k ohm

7.96k ohm

10k ohm

10pF

36pF

50k ohm

15k ohm 30k ohm 7.67k ohm

10k ohm

30k ohm

15k ohm

20uA

21k ohm 29k ohm

24k ohm 24k ohm

65uA

20pF

180k ohm

20pF

180k ohm

40pF

I-I

SW3

SW2

SW1

1k ohm

LCD

3 STATE

DET.

20pF

TEO

TEN

TEB

SEL

LDO

MDI

TNI

TPI

FPI

FNI

Vcc

2VRO

No. Symbol I/O Pin function

13

14

15

16

17

18

19

20

21

22

23

24

O

I

O

I

O

I

O

-

I

Sub beam adder signal output terminal

Focus error signal output terminal

FE amp negative input terminal

Reference voltage (VREF) output terminal

Track count signal output terminal

RFRP detect circuit input terminal

RF gain signal output terminal

RF amplitude adj. control signal input terminal

RF signal amplitude adj. amp input terminal

RF signal output terminal

Ground terminal

RF amp negative input terminal

SBAD

FEO

FEN

VRO

RFRP

RFIS

RFGO

RFGC

AGCI

RFO

GND

RFN

No. Symbol I/O

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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“无奇不有”电路图网 http://www.xiaoyu163.com

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

TEST0

HSO

UHSO

EMPH

LRCK

Vss

BCK

AOUT

DOUT

MBOV

IPF

SBOK

CLCK

VDD

VSS

DATA

SFSY

SBSY

SPCK

SPDA

COFS

MONIT

VDD

TESIO0

P2VREF

HSSW

ZDET

PDO

TMAXS

TMAX

LPFN

LPFO

PVREF

VCOREF

VCOF

AVss

SLCO

RFI

AVDD

Non connection

Digital GND terminal

Non connection

Digital power supply voltage terminal

Digital GND terminal

Non connection

Digital power supply voltage terminal

Test input/output terminal. Normally, keep at "L" level

PLL double reference voltage supply terminal

Non connection

Phase difference signal output terminal of EFM signal and PLCK signal

TMAX detection result output terminal.Selected by command bit (TMPS)

LPF amplifier inverting input terminal for PLL

LPF amplifier output terminal for PLL

PLL reference voltage supply terminal

VCO center frequency reference level terminal

VCO filter terminal

Analog GND terminal

Data slice level output terminal

RF signal input terminal

Analog power supply voltage terminal

-

I

-

O

I

O

-

I

O

-

O

I

-

Pin No. Symbol I/O Function

TC9462F (IC541) : DSP & DAC

2.Pin Function (1/2)

80 ~ 51

1 ~ 30

81



100

50

31

~

1.Pin Layout

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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“无奇不有”电路图网 http://www.xiaoyu163.com

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58~61

62

63

64~67

68

69

70

71

72

73

74

75

76

77

78

79

80

81

82

83

84

85

86

87~89

90~93

94

95

96

97

98

99

100

RFCT

RFZI

RFRP

FEI

SBAD

TSIN

TEI

TEZI

FOO

TRO

VREF

RFGC

TEBC

FMO

FVO

DMO

2VREF

SEL

FLGA~D

VDD

VSS

IO0~3

DMOUT

CKSE

DDACT

TESIN

TESIO1

VSS

PXI

PXO

VDD

XVSS

XI

XO

XVDD

DVSR

RO

DVDD

DVR

LO

DVSL

TEST1~3

BUS0~3

VDD

VSS

BUCK

CCE

TEST4

TSMOD

RST

RFRP signal center level input terminal

RFRP zero cross input terminal

RF ripple signal input terminal

Focus error signal input terminal

Sub-beam adder signal input terminal

Test input terminal Normally, keep at "vref" level

Tracking error signal input terminal.Take in at tracking servo ON.

Tracking error zero cross input terminal

Focus servo equalizer output terminal

Tracking servo equalizer output terminal

Analog reference voltage supply terminal

RF amplitude adjustment control signal output terminal

Tracking balance control signal output terminal

Feed equalizer output terminal

Speed error signal or feed search equalizer output terminal

Disk equalizer output terminal (PWM carrier=88.2kHz for DSP, Synchronize to PXO)

Analog double reference voltage supply terminal

APC circuit ON/OFF indication signal output terminal

Non connection

Digital power supply voltage terminal

Digital GND terminal

Non connection

Test input terminal, Normally, keep at "L" level

Test input/output terminal. Normally, keep at "L" level

Digital GND terminal

Crystal oscillator connecting input terminal for DSP

Non connection

Digital power supply voltage terminal

Oscillator GND terminal for system clock

Crystal oscillator connecting input terminal for system clock

Crystal oscillator connecting output terminal for system clock

Oscillator power supply voltage terminal for system clock

Analog GND terminal for DA converter (Rch)

R channel data forward output terminal

Analog supply voltage terminal for DA converter

Reference voltage terminal for DA converter

L channel data forward output terminal

Analog GND terminal for DA converter (Lch)

Test mode terminal . Normal keep at open

Micon interface data input/output terminal

Digital power supply voltage terminal

Digital GND terminal

Micon interface clock input terminal

Command and data sending/receiving chip enable signal input terminal

Test mode terminal. Normal, keep at open

Local test mode selection terminal

Reset signal input terminal.Reset at "L" level

I

O

-

O

-

O

-

I

-

I

-

I

O

-

O

-

O

-

I/O

-

I

Pin No. Symbol I/O Function

2.Pin Function (2/2) TC9462F

w

.

x

i

a

o

y

u

1

6

3

.

c

o

m

Q

3

7

6

3

1

5

1

5

0

9

2

8

9

4

2

9

8

T

E

L

1

3

9

4

2

9

6

5

1

3

9

2

8

9

4

2

9

8

0

5

1

5

1

3

6

7

3

Q

TEL 13942296513 QQ 376315150 892498299

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JVC KD-SX878R User manual

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