Sony ICFCD-543-RM Service manual

ICF-CD543RM

SERVICE MANUAL

Ver. 1.2 2005.07

SPECIFICATIONS

US Model

Canadian Model

AEP Model

Model Name Using Similar Mechanism NEW
CD Mechanism Type FLM-CD543RM-149
Optical Block Name KSM-213RCP
Optical Pick-up Name KSS-213R

AUDIO POWER SPECIFICATIONS

(US model only)

POWER OUTPUT AND TOTAL HARMONIC
DISTORTION
With 3.2–ohm loads, both channels driven from
100 – 10 000 Hz; rated 1.4 W per channel­minimum RMS power, with no more than 10 %
total harmonic distortion in AC operation.

CD player section

System: Compact disc digital audio system
Laser diode properties: Material: GaAlAs

Wavelength: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a
distance of about 200 mm from the objective
lens surface on the optical pick-up block with
7 mm aperture.)

Frequency response: 20 – 20 000 Hz
Wow and flutter: Below measurable limit

+1

dB

–1.5

Radio section

Frequency range:

US model

TV: 2 – 13 ch
WEATHER: 1 – 7 ch
FM: 87.5 – 108 MHz
AM: 530 – 1 710 kHz

Canadian model
Band Frequency range Channel step
FM 87.5-108 MHz 0.1 MHz
AM 530-1 710 kHz 10 kHz

AEP model
Band Frequency range Channel step
FM 87.5-108 MHz 0.05 MHz

AM 531-1 602 kHz 9 kHz
FM 87.5-108 MHz 0.1 MHz

AM 530-1 610 kHz 10 kHz

General

Time display:

US, Canadian models: 12-hour system
AEP model: 24-hour system

Speaker:

Power outputs:

Power requirements:

Dimensions:

Mass:

Supplied accessories:

Design and specifications are subject to change
without notice.

1

77 mm (3

2 W + 2 W (at 10% harmonic distortion)

US, Canadian models: 120 V AC, 60 Hz
AEP model: 220-230 V AC, 50 Hz

Approx. 350 × 88 × 310 mm (w/h/d)
(Approx. 13
projecting parts and controls

Approx. 2.9 kg (6 lb. 6 oz.)

Mounting screws (3), Template (1),
Spacers (3), Cord clamp (1),
Remote commander (RM-CD543A) (1)

⁄8 inches) dia., 3.2

7

⁄8 × 3 1⁄2 × 12 1⁄4 inches) incl.

US Model

TV/WEATHER/FM/AM CD KITCHEN CLOCK RADIO

Canadian, AEP Models

9-873-658-03 Sony Corporation

2005G05-1 Personal Audio Group
C 2005.07 Published by Sony Engineering Corporation

FM/AM CD KITCHEN CLOCK RADIO

ICF-CD543RM

Notes on chip component replacement

•Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam­aged by heat.

SAFETY CHECK-OUT

After correcting the original service problem, perform the follow­ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.

LEAKAGE TEST

The AC leaka ge from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5 mA (500 microamperes).
Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA

WT -540A. Follo w the manufacturers’ instructions to use these
instruments.

2. A battery-operated A C milliammeter. The Data Precision 245

digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a

VOM or battery-operated AC voltmeter. The “limit” indica­tion is 0.75 V, so analog meters must have an accurate low­voltage scale. The Simpson 250 and Sanwa SH-63Tr d are ex­amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V A C range are suit­able. (See Fig. A)

This Compact Disc player is classified
as a CLASS 1 LASER product.
The CLASS 1 LASER PRODUCT label
is located on the top exterior.

To Exposed Metal
Parts on Set

1.5 k

0.15 µF

Fig. A. Using an AC voltmeter to check AC leakage.

Ω

Earth Ground

AC
voltmeter
(0.75 V)

CAUTION

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous ra­diation exposure.

About CD-Rs/CD-RWs

This unit is compatible with CD-Rs/CD-RWs but
playback capability may vary depending on the
quality of the disc, the recording device and
application software.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS
AND IN THE PARTS LIST ARE CRITICAL TO SAFE
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB­LISHED BY SONY.

2

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM­POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

ICF-CD543RM

SECTION 1

SERVICING NOTES

TABLE OF CONTENTS

1. SERVICING NOTES .............................................. 3

2. GENERAL .................................................................. 4

3. DISASSEMBLY

3-1. Disassembly Flow ........................................................... 5

3-2. Cabinet (Upper), CD Lid ................................................ 6

3-3. CD Block Section............................................................ 6

3-4. Panel (Front) Section ...................................................... 7

3-5. Holder (MD).................................................................... 7

3-6. CD Board......................................................................... 8

3-7. Chuck Plate Assy ............................................................ 8

3-8. Tray.................................................................................. 9

3-9. Belt, Loading Board ........................................................ 9

3-10. Base Unit ......................................................................... 10

3-11. Arm, Optical Pick-up Section (KSM-213RCP) ............. 10

3-12. Optical Pick-up (KSS-213R) .......................................... 11

4. ELECTRICAL ADJUSTMENTS

Tuner Section ................................................................. 12

CD Section ..................................................................... 15

5. DIAGRAMS

5-1. Block Diagram – CD Section – .................................... 17

5-2. Block Diagram – MAIN Section – ............................... 18

5-3. Note for Printed Wiring Board and

Schematic Diagrams ....................................................... 19

5-4. Printed Wiring Board – CD Section – .......................... 20

5-5. Schematic Diagram – CD Section – ............................. 21

5-6. Printed Wiring Boards – RELAY Section – ................. 22

5-7. Schematic Diagr am – RELAY Section – ..................... 23

5-8. Printed Wiring Boards – MAIN Section – ................... 24

5-9. Schematic Diagram – MAIN section – ........................ 25

5-10. Printed Wiring Boards – PANEL Section – ................. 26

5-11. Schematic Diagram – PANEL Section –...................... 27

5-12. IC Pin Function Description .......................................... 32

NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT

The laser diode in the optical pick-up block may suffer electro­static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.

NOTES ON LASER DIODE EMISSION CHECK

The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis­sion, observe from more than 30 cm away from the objective lens.

MODEL IDENTIFICATION – Top View –

 MODEL NO. ICF-CD543RM

US, Canadian models: AC: 120 V 60 Hz 15 W
AEP model: AC: 220 – 230 V 50 Hz 15 W

There are three types of US model.
Please look at the mark of set shown below.

6. EXPLODED VIEWS

6-1. Cabinet (Upper) Section ................................................. 34

6-2. Panel (Front) Section ...................................................... 35

6-3. Cabinet (Lower) Section ................................................. 36

6-4. CD Block Section............................................................ 37

6-5. CD Mechanism Deck Section

(FLM-CD543RM-149) ................................................... 38

6-6. Base Unit Section ............................................................ 39

6-7. Optical Block (KSM-213RCP) ....................................... 40

7. ELECTRICAL PARTS LIST .............................. 41

panel (front)

MEGA BASS: Original Type, Silver Type
LIV : Liv Type

3

ICF-CD543RM

SECTION 2

GENERAL

This section is extracted from
instruction manual.

AC power cord Cord clamp

TIMER

Push

CLOCK

D.S.T.

SUMMER T.

PRESET TUNING

SELECT PRESET

1 2 3 4 5

Turn

TIMER
indicator

TIMER

PUSH START/STOP

VOLUME TUNE/TRACK

TIME SET

MEGA BASS

LOW

OFF

HIGH

OPEN/CLOSE

The preset 3, VOLUME + and
CD u buttons have a tactile dot.

RADIO CD

ON/BAND

OFF

PLAY MODE

Features

• Built-in CD player with CD-R/RW playback
function

•Dynamic Bass Reflex Sound with the MEGA
BASS sound system

• TV/WEATHER/FM/AM 4 band PLL (phase
locked loop) synthesized clock radio (US
model)

•FM/AM 2 band PLL (phase locked loop)
(Canadian, AEP models)

•Easy Preset Digital Tuning with 25 station presets

•Easy to set dial cooking timer

• Remote Commander Included

• D.S.T. (Daylight Saving Time) – Summer time
calculation

Setting the Clock

(US model)

1

Plug in the CD kitchen clock radio.

The display will flash “AM 12:00”.

2

Press CLOCK for a few seconds.

You will hear a beep and the hour will start
to flash in the display.

3

Press TUNE/TRACK•TIME SET + or –
until the correct hour appears in the
display.

4

Press CLOCK once.

The minute will flash.

5

Repeat steps 3 and 4 to set the minute.

After setting the minute, press CLOCK to start
the counting of the seconds, and you will
hear two short beeps.

To set the current time rapidly, hold down
TUNE/TRACK•TIME SET + or –.
The clock system varies depending on the model
you own.
12-hour system: “AM 12:00” = midnight

In step 5, when you press CLOCK after the
minute setting to activate the clock, the seconds
start counting from zero.

To change the display to the daylight saving
time (summer time) indication

Press D.S.T.•SUMMER T..

” is displayed and the time indication

“
changes to summer time.
To deactivate the summer time function, press
D.S.T.•SUMMER T. again.

(Canadian, AEP model)

1

Plug in the CD kitchen clock radio.

The display will flash “AM 12:00” or “0:00”.

2

Press CLOCK for a few seconds.

You will hear a beep and the hour will start
to flash in the display.

3

Press TUNE/TRACK•TIME SET + or –
until the correct hour appears in the

Magnet

Size AAA (R03) x 2

The VOL + and u buttons have a
tactile dot.

display.

4

Press CLOCK once.

The minute will flash.

5

Repeat steps 3 and 4 to set the minute.

After setting the minute, press CLOCK to start
the counting of the seconds, and you will
hear two short beeps.

To set the current time rapidly, hold down
TUNE/TRACK•TIME SET + or –.
The clock system varies depending on the model
you own.
12-hour system: “AM 12:00” = midnight
24-hour system: “0:00” = midnight

In step 5, when you press CLOCK after the
minute setting to activate the clock, the seconds
start counting from zero.

To change the display to the
daylight saving time (summer time) indication

Press D.S.T.•SUMMER T..

” is displayed and the time indication

“
changes to summer time.
To deactivate the summer time function, press
D.S.T.•SUMMER T. again.

4

SECTION 3

DISASSEMBLY

• This set can be disassembled in the order shown below.

3-1. DISASSEMBLY FLOW

Note 1: The process described in can be performed in any order.
Note 2: Without completing the process described in , the next process can not be performed.

SET

3-2. CABINET (UPPER), CD LID

(Page 6)

3-3. CD BLOCK SECTION

(Page 6)

ICF-CD543RM

3-4. PANEL (FRONT) SECTION

(Page 7)

3-5. HOLDER (MD)

(Page 7)

3-7. CHUCK PLATE ASSY

(Page 8)

3-9. BELT, LOADING BOARD

(Page 9)

3-6. CD BOARD

(Page 8)

3-8. TRAY

(Page 9)

3-10. BASE UNIT

(Page 10)

3-11. ARM,

OPTICAL PICK-UP SECTION
(KSM-213RCP)
(Page 10)

3-12. OPTICAL PICK-UP

(KSS-213R)
(Page 11)

5

ICF-CD543RM

s

)

Note: Follow the disassembly procedure in the numerical order given.

3-2. CABINET (UPPER), CD LID

4

three screws

×

14)

(BTP3

5

cabinet (upper)

Note: On installation cabinet (upper)

adjust the S691 and
knob (mega bass).

4

two screws
(P3 × 8)

4

six screws
(BTP3 × 14)

4

five screws
(BTP3 × 14)

4

three screw
(BTP3 × 14)

3

CD lid

2

two claws

3-3. CD BLOCK SECTION

1

Turn on the power supply, and press the button (open)
to open the tray.

5

CD block section

4

connector
(CN651)

knob (mega bass)

S691

3

flexible flat cable (14 core

1

Turn on the power supply,
and press the button (open)
to close the tray.

2

(CNP702)

6

3-4. PANEL (FRONT) SECTION

)

7

screw

×

14)

(BTP3

8

two screws

×

8)

(P2.6

9

claw

6

parallel wire lead
(CN1)

5

relay board

3

2

two screws
(P2.6

×

8)

1

parallel wire lead
(CN301)

ICF-CD543RM

0

panel (front) section

3-5. HOLDER (MD)

4

two parallel wire leads
(CN671, CN672)

9

claw

7

8

two screws
(P2.6

screw
(BTP3

×

8)

×

14)

1

two screws
(BTP3 × 14)

2

holder (MD

1

two screws
(BTP3 × 14)

7

ICF-CD543RM

3-6. CD BOARD

3

4

flexible flat cable (16 core)
(CNP701)

1

Remove four solders of the
spindle motor and loading motor.

3-7. CHUCK PLATE ASSY

2

chuck plate assy

2

screw
(BVTT2

×

6)

1

two screws
(P2.6

×

8)

8

3-8. TRAY

2

claw

3

A

ICF-CD543RM

1

Turn the drive gear in the
direction of the arrow

A

.

3-9. BELT, LOADING BOARD

4

tray

1

belt

2

two screws
(M2

2

claw

×

3)

3

claw

4

loading board

3

claw

9

ICF-CD543RM

r

3-10. BASE UNIT

4

base unit

3

boss

2

boss

1

two screws
(PWH2.6

×

10)

2

boss

3-11. ARM, OPTICAL PICK-UP SECTION (KSM-213RCP)

2

arm

3

vibration proof rubber
(green)

4

vibration proof rubber
(red)

5

optical pick-up section
(KSM-213RCP)

4

vibration proof rubbe
(red)

10

1

two screws
(PWH2.6

×

10)

3

vibration proof rubber
(green)

3-12. OPTICAL PICK-UP (KSS-213R)

t

1

2

two screws (M2)

gear (B)

3

5

optical pick-up
(KSS-213R)

ICF-CD543RM

4

sled shaf

11

ICF-CD543RM

SECTION 4

ELECTRICAL ADJUSTMENTS

TUNER SECTION 0 dB=1 µV

[AM]

Setting:

Function : RADIO
RADIO ON/BAND button : AM

MAIN board

AM RF signal

generator

30% amplitude
modulation by
400 Hz signal
Output level:
as low as possible

MAIN board

TP (AM GND)

Put the lead-wire
antenna close to
the set.

set

TP (VT)

100 k

CN371 pin

4.0

MAIN board
CN371 pin

digital voltmeter

Ω

[FM/TV/WEATHER]

Setting:

Function : RADIO
RADIO ON/BAND button: FM or TV or WEATHER

FM RF signal

generator

0.01 µF

22.5 kHz frequency
deviation by 400 Hz
signal
Output level:
as low as possible

MAIN board

TP (FM GND)

MAIN board
TP (FM IN)

MAIN board
TP (FM GND)

TP (VT)

set

digital voltmeter

Ω

100 k

MAIN board
CN371 pin

•Repeat the procedures in each adjustment several times, and the
tracking adjustments should be finally done by the trimmer ca­pacitors.

• Remove FM antenna in FM adjustment.

4

level meter

Ω

+
–

3

MAIN board
CN371 pin

level meter

4.0

Ω

4

+

–

3

(): AEP model

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter

RV1 1,000 kHz (999 kHz)

(): AEP model

AM VCO VOLTA GE ADJUSTMENT

Adjustment Part Frequency Display Reading on Digital Voltmeter

L2 530 kHz 2.3 ± 0.05 V

Confirmation

1,710 kHz 9.3 ± 2.0 V

(1,602 kHz) (8.6 ± 1.5 V)

(): AEP model

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter

L1 580 kHz (621 kHz)

CT1 1,490 kHz (1,395 kHz)

FM/TV (2 – 6 CH) VCO VOLTAGE CONFIRMATION (US model)

Adjustment Part Frequency Display Reading on Digital Voltmeter

Confirmation 108 MHz 14.2 ± 2.0 V
Confirmation TV 2 ch 2.2 ± 0.4 V

FM/TV (2 – 6 CH) TRACKING ADJUSTMENT (US model)

Adjust for a maximum reading on level meter

L3 TV 2 ch

CT2 108 MHz

TV (7 – 13 CH)/WEATHER (1 – 7 CH)

VCO VOLTAGE CONFIRMATION (US model)

Adjustment Part Frequency Display Reading on Digital Voltmeter

Confirmation TV 13 ch 9.2 ± 1.5 V
Confirmation WEATHER 2 ch 4.2 ± 0.5 V

TV (7 – 13 CH)/WEATHER (1 – 7 CH)

TRACKING ADJUSTMENT (US model)

Adjust for a maximum reading on level meter

L4 WEATHER 2 ch

CT3 TV 13 ch

FM VCO VOLTAGE CONFIRMATION (Canadian, AEP models)

Adjustment Part Frequency Display Reading on Digital Voltmeter

Confirmation 87.5 MHz 2.5 ± 0.4 V
Confirmation 108.0 MHz 9.0 ± 2.0 V

FM TRACKING ADJUSTMENT (Canadian, AEP models)

Adjust for a maximum reading on level meter

L3 87.5 MHz

CT2 108 MHz

12

Adjustment Location: MAIN board (See page 14)

FM STEREO ADJUSTMENT

Setting:

Function: RADIO
RADIO ON/BAND button: FM

ICF-CD543RM

( ): Canadian, AEP models

FM RF SSG

µ

0.01

Carrier frequency : 87.5 (98.0) MHz
Modulation : no modulation
Output level : 0.1 V (100 dB)

F

MAIN board
TP (FM IN)

set

MAIN board
TP (FM GND)

1. Connect the frequency counter to TP (FMST) and TP (RA­DIO +B) as shown the figure below.

2. Tune the set to 87.5 (98.0) MHz.

3. Adjust RV2 for 75.95 to 76.05 kHz reading on the frequency
counter.

frequency counter

MAIN board

TP (FMST)

TP (RADIO +B)

TP (FM GND)

1

33 k

µ

F/50 V

+

+
–

Ω

Adjustment Location: MAIN board (See page 14)

13

ICF-CD543RM

Adjustment Location:

– MAIN BOARD (Component Side) –

RV2 FM Stereo Adjustment

RV1 AM IF Adjustment

CT2 FM/TV (2 – 6 ch) Tracking Adjustment (US model)

}

L3

FM Tracking Adjustment (Canadian, AEP models)

L4
CT3

TV (7 – 13 ch)/WEATHER (1 – 7 ch) Tracking Adjustment (US model)

}

CT1

AM T rac king Adjustment

}

L1

– MAIN BOARD (Conductor Side) –

TP

(VT)

TP

(FM IN)

TP

(FM GND)

TP

(FM ST)

L2 AM VCO Adjustment

TP

(AM GND)

TP

(RADIO B+)

4

CN371

1

14

CD SECTION

CD section adjustments are done automatically in this set.
In case of operation check, confirm that focus bias.

FOCUS BIAS CHECK

1. Connect the oscilloscope to TP (RF) and TP (GND) on the CD
board.

2. Insert the disc (YEDS-18). (Part No. : 3-702-101-01)

3. Press the u (CD) button.

4. Confirm that the oscilloscope waveform is as shown in the
figure below. (eye pattern)
A good eye pattern means that the diamond shape (◊) in the
center of the waveform can be clearly distinguished.

• RF signal reference waveform (eye pattern)

VOLT/DIV: 0.2 V (with the 10: 1 probe in use.)
TIME/DIV: 500 ns

0.8

±

0.2 Vp-p

ICF-CD543RM

When observing the eye pattern, set the oscilloscope
for AC range and raise vertical sensitivity.

Adjustment Location:

– CD BOARD (Conductor Side) –

IC701

TP (GND)

TP

(RF)

15