Philips 22RC026/00 Manual de usuario

Car

changer

22RC026/00

Service

Contents

Specifications

Service

Interface

cable

connections

Functional

explanation

Notes

regarding

player

repairs

Notes

regarding

handling

the

pick-up

Pick-up

detail

Disassembly

circuit

descriptions

and

block

diagrams

Block

diagram

PCB

layout

connections

Circuit

diagram

1/3

Circuit

diagram

2/3

Circuit

diagram

3/3

Trouble

shooting

12VCP

and

Exploded

view

changer

mechanism

Lubrication

overview

Mechanical

parts

Exploded

view

cabinet

parts

Cabinet

parts

and

accessories

Electrical

parts

COMPACT

LASER

PRODUCT

DIGITAL

AUDIO

Published

Philips

Car

Systems

9672

Printed

The

Netherlands

©Copyright

reserved

Subject

modification

(GB)

4822

725

25470

PHILIPS

SPECIFICATIONS

Power

supply

13.2VDC

(nom.)

Distortion

<£0.01%

(at

1kHz)

16.0VDC

(max.)

Data

Track

mute

93dB

(A-weighted)

Frequency

response

20-20,000

1dB)

Wow

and

flutter

unmeasurable

DAC

resolution

bit

per

channel

Output

voltage

700mV

Bus

interface

D?B

Operating

positions

Horizontal/Vertical/45°

Crosstalk

L<>R

<-75dB

Weight

2kg

S/N

ratio

‘

96dB

(A-weighted)

Dimensions

(HxWxD)

66x

259x175

SERVICE

IMPORTANT

When

disassembling,

ALWAYS

protect

the

pick-up

unit

against

ESD

damage

closing

the

solder

connection

the

pick-up

unit

either

the

panel

the

flexible

foil

pcb!

(See

also

the

repair

notes

and

disassembly

procedures

described

this

manual.)

New

pick-up

units

are

supplied

with

CLOSED

solder

connections

the

flexible

foil

pcb.

NOT

forget

remove

the

solder

connection

AFTER

replacing

the

unit!

SERVICE

HINTS

prevent

magazine

check

(duration

approx.

30-40

sec.),

insert

the

magazine

and

press

the

‘eject’

button

SIMULTANEOUSLY.

that

case

disc

no.1

loaded

and

the

set

comes

into

'Standby'

mode.

Use

(home-made)

extension

cables

approx.

get

access

the

bottom

side

the

main

pcb

for

measuring

purposes.

Two

extension

cables

2-pole

and

5-pole

one)

are

required.

make

these

cables,

the

following

parts

can

ordered

and

used

for

making

the

extension

cables:

CS801

cable

assy

2-pole

4822

321

62668

CS802

cable

assy

5-pole

4822

320

11738

The

set

can

also

operate

without

cover,

but

take

care

the

following

measures:

ABSOLUTELY

NEVER

PERMIT

LASER

BEAMS

ENTER

THE

EYES

DONOT

EXPOSE

THE

SET

BRIGHT

(SUN)LIGHT

When

the

changer

has

defect

while

the

magazine

still

in,

the

magazine

can

removed

moving

the

emergency

eject

lever

the

right

small

screwdriver,

shown

figure

below.

First

the

protection

sheet

has

removed.

NOT

FORGET

put

the

sheet

back,

prevent

dust

intrusion!

When

disc

chucked,

turn

the

gear

the

right

until

the

slide

lever

reaches

the

edge

the

left

side

(see

figure

2).

Slide

lever

Gear

Figure

INTERFACE

CABLE

CONNECTIONS

Figure

22RC026

-2-

PCOS

459

INTERFACE

CABLE

CONNECTIONS

(continued)

The

figure

below

shows

the

layout

the

connections

the

interface

cable

(service

12nc:

4822

321

62263)

and

the

extension

cable

(service

12nc:

4822

321

62671).

All

connections

here

are

seen

from

the

front

side

the

connectors.

Rectangle_C

connector

INTERFACE

CABLE

RECTANGLE_C

CONNECTOR

BUS_GND

Comer

12V

PERM.

[wen

SIGN_GND

(SHIELD)

(GND)

13-pole

DIN

female

13-pole

DIN

male

EXTENSION

CABLE

13-POLE

DIN

CONNECTOR

SIGN_GND

[raven

ois

12V

PERM.

BUS_GND

(straight

hooked

version)

‘od

ae.

8-pole

DIN:

8-pole

DIN

male

female

CHANGER

CONNECTOR

8-POLE

DIN

CONNECTOR

22RC026

FUNCTIONAL

EXPLANATION

FUNTIONAL

EXPLANATION

APC

(Auto

laser

power

control)

Tracking

servo

This

the

circuit

control

laser

power

pickup,

and

laser

ON/OFF

set

command

from

micro

computer.

Amplifier

pattern

output)

This

inputs

pickup

photo

diode

output

current

(A+C)

FIN2

(ipin),

and

(B+D)

FIN1

(2pin).

Input

current

IV-converted,

and

output

RFSM

(41pin)

RFSM

amplifier

output

by.

way

AGC

circuit.

Self-contained

AGC

circuit

has

variable

range

+3dB,

and

the

time

constant

can

varied

outside-fixed

condenser

PH1

(60pin).

This

also

controls

bottom

level

EFM

signal

(RFSM

output),

and

this

response

can

varied

outside-fixed

condenser

BH1

(61pin).

Central

gain

AGC

variable

range

set

resistance

value

between

RFSM

(41pin)

and

RFS-(42pin).

SLC

(Slice

level

control)

SLC

makes

duty

EFM

signa!

which

input

DSP

50%.

This

judges

duty,

and

decides

level

inte-

grating

EFMO

signal

which

output

from

DSP.

Focus

servo

Focus

error

signal

can

gained

detecting

the

dif-

ference

between

(A+C)

and

(B+D),

which

(B+D)-

(A+C),

and

sent

(20pin).

Focus

error

signal

gain

set

resistance

value

between

(20pin)

and

FE-(21pin).

amplifier

is.

phase

compensating

Amplifier,

and

the

equalizer

curve

set

outside-fixed

condenser

and

resistance.

Besides,

this

amplifier

has

muting

function.

amplifier

has

the

following

functions;

phase

com-

pensating

circuit,

focus

signal

synthesis,

and

offset

cancelling.

Focus

starts

F-SERCH

command,

and

generates

lamp

waveshape

inner

clock.

Focus

error

signal

this

waveshape

detects

in-

focus

condition

(focus

zero

cross),

and

turns

focus

servo.

Lamp

waveshape

amplitude

set

resistance

between

(16pin)

and

FD-(17pin).

This

inputs

pickup

photo

diode

output

current

(Spin)

and

(4pin).

input

current

|V-converted,

and

output

(7pin)

way

VCA

circuit

for

balance

adjustment

and

VCA

circuit

for

follow-up

RFAGC

cir-

cuit.

Tracking

error

gain

set

resistance

between

TE-(6pin)

and

(7pin).

;

TOFF

amplifier

just

after

(7pin)

turns

off

servo

TOFF

signal

from

DSP.

amplifier

varies

servo

response

characteristic

TGL

signal

from

DSP.

THLD

signal

inside

for-

mation

detecting

signal.

When

DEFECT

de-

tected,

inside

mode

changes

into

THLD.

This

can

avoided

causing

short

circuit

DEF

(49pin)

“L”’=GND.

case

detection,

gain

can

automati-

cally

configulating

outside

DC!

(9pin)

band

pass

filter

which

picks

only

shock

element

out

tracking

error

signals

and

putting

in.

amplifier

has

the

function

synthesizing

pulse

and

cancelling

tracking

offset:

pulse

set

(14pin)

(THLD

detected

inside

Sled

servo

SLEQ

(28pin)

sets

response

characteristic.

Amplifier

after

SLEQ

(28pin)

has

muting

function,

and

mutes

SLOF

(38pin)

“H”

SLED

OFF

command.

Sled

feed

operated

means

current

input

SL-

(30pin)

and

SL+(31pin),

that

is,

connecting

output

port

micro

computer

resistance

and

setting

feed-

ing

gain

the

resistance

value.

Spindle

servo

This

configurates,

together

with

DSP,

servo

circuit

keep

disc

linear

velocity

scheduled

level.

This

re-

ceives

signal

from

DSP

CV-(39pin)

and

CV+(40pin),

and

sets

equalizer

characteristic

(23pin),

SP-

(36pin)

and

SPD

(27pin)

which

output

SPD

(27pin).

SPG

(25pin)

set

resistance

with

which

amplifier

gain

12cm

mode

connected

standard

voitage.

FUNCTIONAL

EXPLANATION

TES,

HFL

(Traverse

signal)

10.

PCS

441

transferring

pickup

from

inner

track

outer

track,

output

from

pickup

should

connected

that

HFL

and

TES

Nave

phase

relation

shown

the

figure

below.

TES

comparator

has

about

+100mvV

hysteresis

-polarity

comparator

against

TESI

input.

pickup

exclusively

necessary

signals

out

signals,

band

pass

filter

configurated

outside.

DRF

(Beam

level

judgement)

DRF

becomes

“H”,

when

EFM

signal

(RFSM

output)

held

peak

value

condenser

PH1

(60pin)

and

peak

value

RFSM

gets

over

2.1V.

Condenser

PH1

(60pin)

setting

both

DRF

constant

when

detected

and

RFAGC

response.

—

ZEEE.

2:1

\___________

bal

Pickup

position

focus

In-focus

judgement

This

detects

DEF+0.2V

focus

error

signal

curve,

and

then

judges

focus

zero

cross

(being

focus)

when

curve

becomes

REF.

sinepone

laos

‘REPO,

cad

ene

dit

focus

11.

DEFECT

This

normally

maintain

mirror

surface

level

con-

denser

LF2

(59pin),

and

when

lack

EFM

signal

(RFSM

output)

gets

over

0.35V,

outputs

“H”

DEF

(49pin).

When

DEF

(49pin)

becomes

“H”,

tracking

N.Y

LF2

(S9PIN)

ania

ewveed

rocco

eee

DEF

(49PIN)

12.

Reset

circuit

When

Vcc

gets

over

about

2.8V,

Power

Reset

cancelled.

22RC026

FUNCTIONAL

EXPLANATION

Mechanical

Timing

MAG

ELv

ELV

LOAD

’

‘

LOAD

LOADOUT

s_L

;

CLAMP

}

’

UPLIMIT

: :

LOWLIMIT

—soL

. 1

DISC

;

DISC

COUNT

MAG.SW

‘

0.6s0c

15sec

’

{Disc

LOADING)

DISC

CHANGE(DISC1

—2)

ELV

‘

LOAD

‘4

LOAD

LOADOUT

CLAMP

UPLIMIT

LowumitT

’

;

DISC

COUNT

‘

t 4

Hn]

}

;

MAG.

0.2sec

—

{ELV

DOWN)

1.5sec

—_

(Disc

LOADING)

1.5sec

(Disc

UNLOADING)

awaewoewew

ewewtwewr

——<——<_s_eeeean

"ss

eee

mene

eee

MAG

EJECT(DISC1

PLAY)

ELV

LOAD

La!

LOADOUT

CLAMP

UPLIMIT

LOWLIMIT

DISC

COUNT

MAG.SW

EJECT

—+

meee

1.5sec

asa

2.580c

=r,

3.0sec

rad

(Disc

UNLOADING)

(ELV

DOWN)

(ELV

UP)

PCS

442

22RC026

-6-

NOTES

REGARDING

HANDLING

THE

PICKUP

Touching

this

part

can

cause

function

deterioration.

Please

careful

never

touch

this

part.

Flexible

wire

(connecting

wire)

PCB

Partially

fixed

Holding

and

pulling

flexible

wire

can

cause

breaking

wire.

Please

sure

hoid

the

housing

itself

handling

PICKUP

DETAIL

PICKUP

FPC

(18P

PATTERN

SIDE)

DISASSEMBLY

Remove

screws

(A)

securing

the

cabinet.

Remove

the

cabinet

with

pushing

the

front

panel

stopper.

Remove

the

front

panel

with

pushing

the

both

bottom

lid

stopper.

4.Remove

screws

and

the

connector

(©)

Connect

P.C.B.

can

removed.

Remove

the

cushion.

Remove

the

damper.

remove

the

spring

()

installed

between

the

mechanism

and

the

chassis,

also

mechanism

can

removed.

‘sy

22RC026

REINFORCEMENT,DIN

BOTTOM

LID

DAMPER

CUSHION

DISASSEMBLY

MECHANISM

How

remove

the

ELEVATOR

MOTOR,

FEED

MO-

TOR

and

the

LORDING

MOTOR.

(1)

How

remove

the

FEED

MOTOR.

Short

the

short-pattern

FPC,

with

sol-

der.

Remove

the

two

screws

(SCR

S-TPG

PAN

PCS

x3)

which

fasten

the

MECHA-PANEL

(134).

The

MECHA-PANEL

can

removed.

Remove

the

four

screw

(SCR

S-TPG

PAN

PCS

which

fasten

the

MAIN

PCB

Remove

the

connectors

(CP801

and

CP802).

Only

when

you

will

also

remove

the

ELEVATOR

MOTOR,

remove

FPC602.

Remove

the

five

screws

(SCR

TPG

PAN

PCS

(10)

which

fasten

the

TOP

CHASSIS

C71).

The

TOP

CHASSIS

can

removed.

Remove

the

two

screw

(SCR

S-TPG

PAN

PCS

2.5)

(C55)

which

fasten

the

FEED

MOTOR

€54).

(2)

How

remove

the

ELEVATOR

MOTOR.

Remove

the

SPECIAL

WASHER

(C5)

which

fasten

the

GEAR

(2)

and

the

GEAR

(3).

The

GEAR

and

the

GEAR

can

removed.

Remove

the

two

screws

(SCR

S-TPG

PAN

PCS

2.5)

(C8)

which

fasten

the

ELEVATOR

MOTOR

(7).

The

ELEVATOR

MOTOR

can

removed.

MECHA-PANEL

ELEVATOR

MOTOR

DISASSEMBLY

(3)

How

remove

the

MOTOR.

SLIDE

PLATE

Remove

the

SPECIAL

WASHER

which

fasten

the

GEAR

and

GEAR

LB(C5})

The

GEAR

and

GEAR

can

removed.

Moving

the

slide

plate

€15)to

the

right,

lower

the

elevator

the

third

slot

position.

Remove

the

two

screws

(SCR

S-TPG

PAN

PCS

2.5)

which

fasten

the

MOTOR

The

MOTOR

can

removed.

MOTOR

How

remove

the

PICKUP

and

the

SPINDLE

MOTOR.

(1)

How

remove

the

PCB

and

PICKUP.

Short

the

short-pattern

FPC,

PUC99

with

solder.

Remove

CS903,

FPC602,

CP904,

CP905

and

CP906

from

the

connector.

Remove

the

two

screws

(SCR

S-TPG

PAN

PCS

(72)

and

one

screws

(SCR

S-TPG

BIN

27)

(C73)

which

fasten

the

PCB

(cB.

Remove

the

screw

(SCR

S-TPG

BIN

2X7)

which

fix

INSIDE

SWITCH

@78).

Remove

the

two

screws

(SCR

PAN

PCS

1.7

3.5)

and

THRUST,

SCREW

(96),

PLATE,

SLIDE

Es?

will

come

off.

Remove

the

two

screws

SPECIAL

SCREW

which

fix

SHAFT,

PICKUP,

A839).

FPC

Short

circuit

soldering.

Remove

the

SHAFT,

PICKUP,

from

the

PICKUP,

LASER

€87).

PICKUP.

LASER

The

PICKUP,

LASER

can

removed.

short

circuit

position.

Cause

short

circuit

soldering

PICKUP,

LASER

Cause

shor

circuit

the

PICKUP,

LASER

(87)

Remove

FPC,

off

CONNECT,

and

Hevea

raha

P.C.B

come

off.

FPC

(C99)

off

PICKUP,

LASER

<e)

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