Sony PMCDR-40 Service manual

PMC-DR45

SERVICE MANUAL

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC DISTORTION With 4-ohm loads, both channels driven from 150 - 10,000 Hz; rated 13 W per channelminimum RMS power, with no more than 10% total harmonic distortion in AC operation.

Section

Tape

Section

US Model

Canadian Model

Model Name Using Similar Mechanism CFD-S47 CD Loading Mechanism Type FLM-DR45-149 CD Mechanism Type KSM-213CCP Optical Pick-up Name KSS-213C Model Name Using Similar Mechanism NEW Tape Transport Mechanism Type MF-DR45

CD player section

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs Wave length: 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.)

Spindle speed

200 r/min (rpm) to 500 r/min (rpm) (CLV)

Number of channels

Frequency response

20 - 20,000 Hz +0/–1 dB

Wow and flutter

Below measurable limit

Radio section

Frequency range

FM: 87.6 - 108 MHz AM:530 - 1,710 kHz

Antennas

FM: Lead antenna AM:Loop antenna

SPECIFICATIONS

Cassette-corder section

Recording system

4-track 2-channel stereo

Fast winding time

Approx. 120 s (sec.) with Sony cassette C-60

Frequency response

TYPE I (normal): 50 - 14,000 Hz

General

Speaker

Full range: 8 cm (3 cone type × 2

Input

LINE IN jack (stereo minijack) Minimum input level 440 mV

Outputs

Headphones jack (stereo minijack) For 16 - 64 ohms impedance headphones LINE OUT jack (stereo minijack) Rated output level 330 mV at load impedance 47 kilohms OPTICAL DIGITAL OUT (CD) (optical output connector) Wave length: 760 - 880 nm

Power output (excluding US model)

15 W + 15 W (at 4 ohms, 10% harmonic distortion in AC operation)

1/4 in.) dia., 4 ohms,

– Continued on next page –

PERSONAL COMPONENT SYSTEM

– 1 –

Power requirements

For personal component system: 120 V AC, 60 Hz For remote control: 3 V DC, 2 AA (size R6) batteries

Power consumption

AC 45 W (US model) AC 50W (Canadian model)

Dimensions (incl. projecting parts)

Player: approx. 137 × 202 × 212 mm (w/h/d)

1/2 × 8 × 8 3/8 inches)

Left speaker: approx. 137 × 202 × 212 mm

(w/h/d) (5

Right speaker: approx. 137 × 202 × 180 mm

(w/h/d) (5

Mass

Player: approx. 1.8 kg (3 lb. 15 oz.) Left speaker: approx. 3 kg (6 lb. 10 oz.) Right speaker: approx. 1.5 kg (3 lb. 5 oz.)

Supplied accessories

Remote control (1) (RMT-CDR45A) FM lead antenna (1) AM loop antenna (1) Audio connecting cord (1)

Design and specifications are subject to change without notice.

1/2 × 8 × 8 3/8 inches) 1/2 × 8 × 7 1/8 inches)

TABLE OF CONTENTS

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

2. GENERAL

Playing a CD ........................................................................... 4

Listening to the radio............................................................... 4

Playing a tape .......................................................................... 5

Recording on a tape ................................................................. 5

Setting the clock ...................................................................... 6

3. DISASSEMBLY

3-1. Cabinet (Front) Assy ........................................................... 7

3-2. Cabinet (Rear) ..................................................................... 8

3-3. Front Board ......................................................................... 8

3-4. Control Board ...................................................................... 9

3-5. Line Board........................................................................... 9

3-6. Tuner Board....................................................................... 10

3-7. Holder, Cassette ................................................................ 10

3-8. Top Block Assy ................................................................. 11

3-9. CD Assy, H/P Board.......................................................... 11

3-10. Main Board ....................................................................... 12

3-11. Tape Mechanism Block..................................................... 12

3-12. Top Board.......................................................................... 13

3-13. “Plate Assy, Chuck”, Tray................................................. 13

3-14. Loading Board................................................................... 14

3-15. CD Board .......................................................................... 14

3-16. CD Mechanism Block ....................................................... 15

3-17. Power Board ...................................................................... 15

4. MECHANICAL ADJUSTMENTS............................... 16

5. ELECTRICAL ADJUSTMENTS

5-1. Tape Section ...................................................................... 16

5-2. Tuner Section .................................................................... 18

5-3. CD Section ........................................................................ 20

6. DIAGRAMS

6-1. IC Pin Descriptions ........................................................... 21

6-2. Circuit Boards Location .................................................... 23

6-3. Block Diagram –Tuner Section–....................................... 25

6-4. Block Diagram –CD Section–........................................... 27

6-5. Block Diagram –Tape Section– ........................................29

6-6. Block Diagram –System Control, Power Section– ........... 31

6-7. Printed Wiring Board –Tuner Section–............................. 33

6-8. Schematic Diagram –Tuner Section–................................ 35

6-9. Printed Wiring Boards –CD Section– ............................... 37

6-10. Schematic Diagram –CD Section–.................................... 39

6-11. Printed Wiring Board –TC Section– ................................. 41

6-12. Schematic Diagram –TC Section– .................................... 43

6-13. Printed Wiring Board –Main Section– .............................. 45

6-14. Schematic Diagram –Main Section–................................. 47

6-15. Printed Wiring Board –Control Section– ..........................49

6-16. Schematic Diagram –Control Section– .............................53

6-17. Printed Wiring Board –Front Section– ..............................55

6-18. Schematic Diagram –Front Section– ................................ 56

6-19. Printed W iring Board –Top Section– ................................ 57

6-20. Schematic Diagram –Top Section–................................... 58

6-21. Printed Wiring Board –Line Section– ............................... 59

6-22. Schematic Diagram –Line Section– ..................................59

6-23. Printed Wiring Boards –Power Section–........................... 61

6-24. Schematic Diagram –Power Section– ............................... 63

6-25. IC Block Diagrams............................................................65

7. EXPLODED VIEWS

7-1. Cabinet Section .................................................................69

7-2. Cabinet (T op) Section .......................................................70

7-3. CD Chassis Section ........................................................... 71

7-4. Mechanism Deck Section (1) ............................................ 72

7-5. Mechanism Deck Section (2) ............................................ 73

7-6. Optical Pick-up Section .................................................... 74

7-7. Speaker (L) Section...........................................................75

7-8. Speaker (R) Section........................................................... 76

8. ELECTRICAL PARTS LIST......................................... 77

– 2 –

SECTION 1

SERVICING NOTES

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

CAUTION

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

Flexible Circuit Board Repairing

• Keep the temperature of the soldering iron around 270˚C during

repairing.

• Do not touch the soldering iron on the same conductor of the

circuit board (within 3 times).

• Be careful not to apply force on the conductor when soldering

or unsoldering.

Notes on Chip Component Replacement

• Never reuse a disconnected chip component.

• Notice that the minus side of a tantalum capacitor may be dam-

aged by heat.

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

The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair , pay attention to electrostatic breakdown 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 pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.

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 leakage 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. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC 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 low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A)

To Exposed Metal Parts on Set

0.15µF

Ω

1.5k

Earth Ground

AC voltmeter (0.75V)

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 P ART NUMBERS APPEAR AS SHOWN IN THIS MANU AL OR IN SUPPLEMENTS PUBLISHED BY SONY.

ATTENTION AU COMPOSANT AYANT RAPPORT

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS P AR UNE MARQUE 0 SUR LES DIAGRAMMES SCHÉMA TIQ UES 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.

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

– 3 –

Basic Operations

SECTION 2

GENERAL

This section is extracted from instruction manual.

Playing a CD

For hookup instructions, see pages 32 - 36.

1 Press Z CD OPEN/CLOSE

2 Press u.

(direct power-on) and place the CD on the CD tray.

(On the remote, press N on the CD section.)

The CD tray closes and the player plays all the tracks once.

With the label side up

Display

Playing timeTrack number

Tip

Next time you want to listen to a CD, just press u. The player turns on automatically and starts playing the CD.

Use these buttons for additional operations

POWER

To Press

adjust the volume VOLUME +, –

stop playback x pause playback u

go to the next track > go back to the previous track . remove the CD Z CD OPEN/CLOSE turn on/off the player POWER

., >

(VOL +, – on the remote)

(X on the remote) Press again to resume play after pause.

VOLUME +, –

Z CD OPEN/CLOSE

Basic Operations

Basic Operations4

Listening to the radio

For hookup instructions, see pages 32 - 36.

1 Press BAND•AUTO PRESET

2 Hold down TUNE TIME SET + or

until the band you want appears in the display (direct power-on).

– (TUNE + or – on the remote) until the frequency digits begin to change in the display.

The player automatically scans the radio frequencies and stops when it finds a clear station.

If you cannot tune in a station, press the button repeatedly to change the frequency step by step.

Display

Indicates an FM stereo broadcast.

Tips

• The “FM1” and “FM2” bands have the same functions. You can store the stations you want separately in “FM1” and

“FM2”.

• If the FM broadcast is

noisy, press MODE until “MONO” appears in the display and the radio will play in monaural.

• Next time you want to listen to the radio, just press the BAND•AUTO PRESET button. The player turns on automatically and starts playing the previous station.

Basic Operations

Use these buttons for additional operations

POWER

To Press

adjust the volume VOLUME +, –

turn on/off the radio POWER

To improve broadcast reception FM:

Keep the FM lead antenna as horizontal as possible and reorient it.

If the FM broadcast is still noisy, disconnect the FM lead antenna and connect the FM outdoor antenna (not supplied) (page 36).

AM:

Keep the AM loop antenna as far as possible from the player and reorient it.

MODE

VOLUME +, –

(VOL +, – on the remote)

Basic Operations

Basic Operations6

Basic Operations

– 4 –

Playing a tape

Use these buttons for additional operations

POWER Z PUSH OPEN/CLOSE

1, 2

TAPE m, M

x n

VOLUME +, – COUNTER RESET

DIR MODE

Basic Operations

For hookup instructions, see pages 32 - 36.

1 Press Z PUSH OPEN/CLOSE to

2 Press Z PUSH OPEN/CLOSE to

3 Press N.

Basic Operations8

open the tape compartment and insert a recorded tape. Use TYPE I (normal), TYPE II (high position) and TYPE IV (metal) tapes.

close the compartment.

(On the remote, press TAPE N.) The player turns on (direct

power-on) and starts playing.

Recording on a tape

3 3

For hookup instructions, see pages 32 - 36. To record on a MiniDisc or DAT recorder, connect the component (see page 38).

1 Press Z PUSH OPEN/CLOSE to

open the tape compartment, and insert a blank tape. Use TYPE I (normal) tape only.

Press Z PUSH OPEN/CLOSE again to close the compartment.

With the side you want to play facing up

Display

Tape counter

With the side you want to record on facing up

Tips

• Press COUNTER RESET to reset the counter to

“000”.

• Next time you want to

listen to a tape, just press N or n. The player turns on automatically and starts playing the tape.

To Press

adjust the volume VOLUME +, –

stop playback x play the reverse side n fast-forward or rewind the tape TAPE M or m eject the cassette Z PUSH OPEN/CLOSE turn on/off the player POWER

To select the direction mode of the tape

Press DIR MODE repeatedly.

To play Display shows

one side of the tape both sides of the tape

from the upper side to reverse side only

both sides of the tape repeatedly

3 Start recording.

To record the whole CD

Press CD DUBBING. When

is displayed:

If the tape is reversed with the recording of the track unfinished, the player will record the track again from its beginning on the reverse side.

When

is displayed:

If the tape reaches to its end, the player stops.

To record the radio (You can also record the CD according to the following procedure. Play the CD after the tape starts recording.)

Press z/X and then N. To record on the reverse side, press n. (On the remote, while keeping

z/X pressed, press TAPE N or n.)

(VOL +, – on the remote)

Basic Operations

2 Select the program source you

Basic Operations10

want to record. To record from the CD player:

Insert a CD (see page 4) and press x on the CD section.

To record from the radio: Tune in the station you want (see page 6).

Display

– 5 –

continued

Basic Operations

Recording on a tape (continued)

Use these buttons for additional operations

POWER

z/X

MODE

DIR MODE

Tips

• Adjusting the volume or the audio emphasis (page 22) will not affect the recording level.

• When

or is displayed, recording will be made on both sides of the tape. To record on one side, press DIR MODE to display

• If the AM radio makes a whistling sound after you’ve pressed z/X in step 3, press MODE to select the position that most decreases the noise.

Note

When you start recording using CD DUBBING, you cannot set the player in pause.

Basic Operations12

The Timer

Setting the clock

“– –:– –” indication appears in the display until you set the clock.

To Press

stop recording x on the tape section pause recording z/X

turn on/off the player POWER

To erase a recording, proceed as follows: 1 Insert a tape you want to erase its recording into the tape

deck and press x on the tape section.

2 On the player: press z/X and then N.

On the remote: While keeping z/X pressed, press TAPE N.

CLOCK

Press the button again to resume recording.

TUNE TIME SET –, +

ENTER MEMORY

SUMMER TIME

Setting the clock (continued)

Audio Emphasis/The Timer

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

Press and hold SUMMER TIME for 2 seconds. “SUMMER ON ” appears in the display for a few

seconds.

To cancel the summer time indication

Press and hold SUMMER TIME again. “SUMMER OFF” appears in the display for a few

seconds.

Tip

The time display system of this player is the 12-hour system.

Before you begin, hook up the system (see pages 32 -

36).

1 Press and hold CLOCK until the hour digit flashes.

2 Set the clock.

1 Press TUNE TIME SET

+ or – to set the hour and press ENTER MEMORY.

2 Press TUNE TIME SET

+ or – to set the minutes.

3 If you are on daylight saving time, press SUMMER

TIME.

4 Press ENTER MEMORY.

The clock starts from 00 seconds.

continued

The Timer 23

The Timer24

– 6 –

SECTION 3

DISASSEMBLY

• The equipment can be removed using the following procedure.

Set Cabinet (Front) Assy

Cabinet (Rear) Front Board

Control Board Tuner Board Line Board Holder, Cassette

Top Block Assy

Main Board

CD Assy, H/P Board

Loading Board CD Board CD Mechanism Block

Speaker Set Power Board

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

Tape Mechanism Block (TC Board)

3-1. CABINET (FRONT) ASSY

5 cabinet (front) assy

Top Board

“Plate Assy, Chuck”, Tray

4 CNP802

1 BVTP 3x12

2 BVTP 3x12

3 BVTP 3x1

– 7 –

3-2. CABINET (REAR)

4 cabinet (rear)

3 BVTP 3x10

2 BVTP 3x1

3-3. FRONT BOARD

1 BVTP 3x10

1 BTP 2.6x8

2 BTP 2.6x8

3 FRONT boar

– 8 –

3-4. CONTROL BOARD

5 CONTROL board

4 BVTP 3x10

1 CNP804

2 CNP803

6 CNP307

3 BVTP 3x10

3-5. LINE BOARD

1 CNP304

MAIN board

3 CNP312

4 LINE board

– 9 –

2 BVTP 3x10

3-6. TUNER BOARD

1 screw

3-7. HOLDER, CASSETTE

5 Removal the solder.

4 CNP1

2 boss

6 TUNER board

2 BVTP 3x10

3 BVTP 3x10

4 holder, cassette

3 boss

1 spring, cassette

– 10 –

3-8. TOP BLOCK ASSY

1 CNP306

5 top block assy

CD block assy

2 CNP313

H/P board

3 claws

4 claw

3-9. CD ASSY, H/P BOARD

7 BVTP 3x10

8 H/P board

6 plate, CD

3 CD assy

5 CNP70

4 CNP702

1 BVTP 3x10

2 BVTP 3x10

– 11 –

3-10. MAIN BOARD

5 CNP31

3 MAIN board

4 CNP302

2 BVTP 3x10

3-11. TAPE MECHANISM BLOCK (TC BOARD)

2 BVTP 3x10

1 BVTP 3x10

3 tape mechanism bloc

1 BVTP 3x10

4 CN301

7 BVTP 3x10

– 12 –

8 holder MD

6 TC board

5 BVTP 3x10

3-12. T OP BOARD

3 panel assy, top

6 TOP board

5 BTP 2.8x8

3-13. “PLATE ASSY, CHUCK”, TRA Y

4 BTP 2.8x8

1 BVTP 3x10

2 BVTP 3x10

2 plate assy, chuck

1 P 2.6x

4 claw

5 claw

7 tray

– 13 –

3-14. LOADING BOARD

3 pulley

1 belt

5 B 2x3

4 CN651

6 claw

3-15. CD BOARD

2 claw

7 claw

8 LOADING board

3 CNP701

4 CD board

1 Removal the

four solders.

2 P 2x5

– 14 –

3-16. CD MECHANISM BLOCK

1 PWH 2.6x10

2 gear, drive

3 gear

0 arm

4 PWH 2.6x10

qa CD mechanism bloc

8 PWH 2.6x10

CD mechanism block

chassis

arm

3-17. POWER BOARD

5 CNP903

qs BVTP 3x10

6 CNP911

qd B 4x6

qf power board

7 CNP901

4 bracket, cover

0 speaker board

9 BTP 2.6x8

1 scews +B tapping

8 CNP902

qa BVTP 3x10

2 scews +B tapping

– 15 –

3 cabinet (rear), speaker

(

)

SECTION 4

MECHANICAL ADJUSTMENTS

SECTION 5

ELECTRICAL ADJUSTMENTS

PRECAUTION

1. Clean the following parts with a denatured-alcohol-moistened swab:

record/playback/erase head pinch roller rubber belts capstan idlers

2. Demagnetize the record/playback/erase head with a head demagnetizer. (Do not bring the head demagnetizer close to the erase head portion.)

3. Do not use a magnetized screwdriver for the adjustments.

4. After the adjustments, apply suitable locking compound to the parts adjusted.

5. The adjustments should be performed with the rated power supply voltage unless otherwise noted.

Torque Measurement

Mode Torque Meter Meter Reading

FWD (36 – 61 g•cm)

CQ-102C

FWD Back tension

REV (36 – 61 g•cm)

CQ-102RC

REV Back tension

FF, REW CQ-201B (61 – 143 g•cm)

3.53 – 5.98 mN•m

(0.50 – 0.89 oz•inch)

0.20 – 0.58 mN•m (2.0 – 6.0 g•cm)

(0.028 – 0.076 oz•inch)

3.53 – 5.98 mN•m

(0.50 – 0.89 oz•inch)

0.20 – 0.58 mN•m (2.0 – 6.0 g•cm)

(0.028 – 0.076 oz•inch)

5.99 – 14.02 mN•m

(0.89 – 2.00 oz•inch)

5-1. TAPE SECTION 0 dB = 0.775 V

1. The adjustments should be performed in the order given in the service manual. (As a general rule. Playback circuit adjustment should be completed before performing recording circuit adjustment.)

2. The adjustments should be performed for both L-ch and R-ch unless otherwise indicated.

Standard Output Level

SP OUT PHONES

Load impedance 4 Ω 32 Ω Output level 0.775 V (0 dB) 0.25 V (–10 dB)

Test T ape

Type Signal Used for

WS-48B 3 kHz, 0 dB Tape speed adjustment P-4-A100 10 kHz, –10 dB Head azimuth adjustment

Tape Speed Adjustment

Procedure:

Mode: playback

digital frequenc

test tape WS-48B (3 kHz, 0 dB)

set

headphones) jack (J301

counter

32 Ω

Tape T ension Measurement

Mode Tension Meter Meter Reading

FWD CQ-403A REV CQ-403R

(more than 3.52 oz)

more than 100 g

Adjust so that the value on the frequency counter is 3,000 Hz.

Specification Values:

Digital frequency counter

2,970 to 3,030 Hz

Adjust so that the frequency at the beginning and that at the end of tape winding are between 2,955 and 3,045 Hz.

Adjustment Location:

TC board

M691

TAPE SPEED Adjustment

– 16 –

Record/Playback/Erase Head Azimuth Adjustment

Procedure:

1. Mode: FWD/REV playback

test tape P-4-A100 (10 kHz, –10 dB)

set

i (headphones) jack (J301)

level meter

32 Ω

+ –

2. Turn the adjustment screw for the maximum output levels. If these levels do not match, turn the adjustment screw

until both

of output levels match together within 1 dB.

Adjustment Location:

screwdriver

FWD (forward)

REV (reverse)

L-CH peak

R-CH

screw position

peak

3. Phase Check Mode: FWD/REV playback

test tape P-4-A100 (10 kHz, –10 dB)

L-CH

set

R-CH

within 1dB

output level

L-CH peak

32 Ω

i (headphones) jack (J301)

Screen pattern

R-CH peak

oscilloscope

within 1dB

scre angle

–

in phase 45 ° 90 ° 135 ° 180 °

Good Wrong

4. After the adjustment, lock the screws with locking compound.

– 17 –

5-2. TUNER SECTION 0 dB = 1 µV

)

• FM Section

Setting:

BAND button: FM

FM RF signal generator

FM termina (J1)

0.01 µF set

75 kHz frequency deviation by 1 kHz signal output level : as low as possible

FM FREQUENCY COVERAGE

ADJUSTMENT

Frequency Display 87.5 MHz 108 MHz Reading on Digital voltmeter 1.5 ± 0.1 V 3.8 ± 0.4 V Adjustment Part L2 <confirmation>

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L1 CT1

87.5 MHz 108 MHz

• AM Section

Setting:

BAND button: AM

AM RF signal generator

Put the lead-wire antenna close to the AM loop antenna.

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

• Connecting Level Meter (FM and AM)

level meter (range: 0.5-5 V ac

32 Ω

set

i (headphones) jack (J301)

• Connecting Digital Voltmeter (FM and AM)

digital voltmeter

FM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

10.7 MHz (Display: 98 MHz)

AM FREQUENCY COVERAGE

ADJUSTMENT

Frequency Display 530 kHz 1,710 kHz Reading on Digital voltmeter 0.9 ± 0.1 V 5.1 ± 0.4 V Adjustment Part T4 <confirmation>

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

T3 CT3

620 kHz 1,400 kHz

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

450 kHz (Display: 1,000 kHz)

Adjustment Location: TUNER board (See page 19.)

tuner board TP (VT)

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

– 18 –

Adjustment Location:

)

– TUNER BOARD (COMPONENT SIDE) –

TM1

TERMINAL

AM IF

ADJUSTMENT

FM TRACKING ADJUSTMENT

CT1 L1

AM TRACKING ADJUSTMENT

T3 CT3

TP(VT)

(conductor side

FM IF

ADJUSTMENT

FREQUENCY

COVERAGE

ADJUSTMENT

FREQUENCY

COVERAGE

ADJUSTMENT

– 19 –

5-3. CD SECTION

Focus Bias Check

This check is to be done when the optical block replaced.

Check Procedure:

1. Connect the oscilloscope to test point TP (RF) on CD board.

Insert disk (YEDS-18 (3-702-101-01)).

2. Press the u button.

3. Check 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.

4. Release test mode after adjustment is completed.

• RF signal reference waveform (eye pattern)

VOLT/DIV : 50mV TIME/DIV : 500 ns (With the 10:1 probe in use)

1.1- 1.3 Vp-p

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

Adjustment Location: CD board

–CD BOARD (CONDUCTOR SIDE) –

IC702

IC701

TP(RF)

– 20 –

SECTION 6 DIAGRAMS

6-1. IC PIN DESCRIPTIONS

• CONTROL BOARD IC801 CXP82832-028Q (SYSTEM CONTROL)

Pin No. Pin Name I/O Pin Description

1 G2 O GRID2 signal output 2 G1 O GRID1 signal output 3NC— Not used. (Fixed at “H”.) 4 C-SCOR I SCOR signal input from the IC702 (CXD2587Q) 5 T-CNT (END) I T-COUNTER (T-END) signal input 6 REG.CHK I P-DOWN IN (B/UP) signal input 7 T-AMS I TAPE AMS IN signal input 8 RMC I Remote control signal input

9 T-MODE I T-MODE SW signal input 10 V-DA/LT O Serial data/latch signal output to the IC302 (BD3859FV) 11 R-CE O R-CE signal output 12 V-CLK O Serial clock signal output to the IC302 (BD3859FV) 13 R-CLK O R-CLOCK signal output 14 R-DATA O R-DATA signal output 15 R-COUNT I R-COUNT signal input 16 C-XLAT O Serial latch signal output to the IC702 (CXD2587Q) 17 C-CLK O Serial clock signal output to the IC702 (CXD2587Q) 18 C-DATA O Serial data signal output to the IC702 (CXD2587Q) 19 C-OPEN.I I CD open switch signal input 20 C-CLOSE.I I CD close switch signal input 21 C-SCLK O SCLK signal output to the IC702 (CXD2587Q) 22 RDS-CLK I Serial clock signal input (Not used in this set.) 23 RDS-DATA I Serial data signal input (Not used in this set.) 24 SD I LR signal detector terminal 25 C-SQCK I SUBQ clock signal input from the IC702 (CXD2587Q) 26 C-SQSO I SUBQ data signal input from the IC702 (CXD2587Q) 27 C-SENS I Sens signal input from the IC702 (CXD2587Q) 28 AVREF — A/D converter Vref pin 29 KEY1 I Key signal input 1 30 KEY2 I Key signal input 2 31 KEY3 I Key signal input 3

32 – 34 F-CD I CD test mode pin

35 T-STAT I/O Tape status signal input/output 36 VERSION I Version read signal input 37 AVSS — Ground 38 RST I Reset signal input from the IC802 (PST9128-T) 39 EXTAL I Clock oscillation input (8 MHz) 40 X’TAL O Clock oscillation output (8 MHz) 41 GND — Ground 42 TX O Crystal connection for clock oscillation (32.768 kHz) 43 TEX I Crystal connection for clock oscillation (32.768 kHz) 44 VDD — Power supply pin 45 VFDP — Voltage for FDP 46 NC — Not used. (Open) 47 C-OPEN.O O CD open signal output 48 C-CLS.O O CD close signal output 49 SFT-CLK O Shift clock signal output 50 C-RST O Reset signal output to the IC702 (CXD2587Q)

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