Sony PHC-Z10 Service manual

PHC-Z10

SERVICE MANUAL

Ver 1.0 2000. 05

CD

Section

TC

Section

US Model

Canadian Model

E Model

Model Name Using Similar Mechanism NEW

CD Mechanism Type KSM-213CCM

Optical Pick-up Name KSS-213C

Model Name Using Similar Mechanism NEW

Tape Transport Mechanism Type MF-PHCZ10

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL
HARMONIC DISTORTION
With 6 Ω loads, both channel driven from 120

- 10 000 Hz; rated 50 W per channel-minimum
RMS power, with no more than
10 % total harmonic distortion from 250
milliwatts to rated output.

Other Specifications
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

2

Frequency response

20 - 20 000 Hz +1/–2 dB

SPECIFICATIONS

Radio section

Frequency range

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

Antenna

FM: Lead antenna
AM: Loop antenna

Cassette-corder section

Recording system

4-track 2 channel stereo

Fast winding time

Approx. 100 s (sec.) with Sony cassette C-60

Frequency response

TYPE I (normal): 100 - 10 000 Hz

— Continued on next page —

PERSONAL COMPONENT SYSTEM

General

Speaker

Woofer: 13 cm (5
Tweeter: 5 cm (2 inches) dia.,
6 Ω, cone type (2)

Inputs

LINE IN jacks (2 phono jacks):
Sensitivity 220 mV

Outputs

Headphones jack (stereo minijack):
For 8 - 32 Ω impedance headphones
Speaker terminals: For supplied 6 Ω
impedance speaker

Power output (excluding US model)

50 W + 50 W (at 6 Ω, 10 % harmonic
distortion)

Power requirements

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

Power consumption

AC 110 W

Dimensions

Player: approx. 285 × 322 × 408 mm (w/h/d)

(11 1 ⁄4 × 12 3 ⁄4 × 16 1 ⁄8 inches)

Speaker: approx. 200 × 316 × 250 mm (w/h/d)

(7 7 ⁄8 × 12 1 ⁄2 × 9 7 ⁄8 inches)

Mass

Player: approx. 7.7 kg (16 lb. 16 oz.)
Speaker: approx. 3.15 kg (6 lb. 15 oz.)

Supplied accessories

Remote control (1)
FM lead antenna (1)
AM loop antenna (1)

Design and specifications are subject to change without
notice.

1

⁄8 inches) dia.,

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-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.

ATTENTION AU COMPOSANT AYANT RAPPORT

LES COMPOSANTS IDENTIFÉS PAR 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 PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.

À LA SÉCURITÉ!

— 2 —

SAFETY CHECK-OUT

TABLE OF CONTENTS

After correcting the original service problem, perform the
following safety checks 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

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

AC

0.15 µF

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

1.5 kΩ

Earth Ground

Voltmeter
(0.75 V)

1. GENERAL

Displaying the spectrum analyzer ........................................... 5

Setting the clock ...................................................................... 5

2. DISASSEMBLY

2-1. Side Plate ............................................................................. 6

2-2. Cabinet, Rear ....................................................................... 6

2-3. Changer Assy, Front ............................................................ 7

2-4. Key (A) Board, Key (B) Board and LED Board ................. 7

2-5. Display Board ..................................................................... 8

2-6. Cassette Mechanism Deck .................................................. 8

2-7. Main Board and Transformer, Power .................................. 9

2-8. CD Mechanism Deck .......................................................... 9

2-9. Base, Changer ................................................................... 10

2-10. Optical Pick-up ............................................................... 10

3. MECHANICAL ADJUSTMENTS ............................... 11

4. ELECTRICAL ADJUSTMENTS

Tape Section .......................................................................... 11

Tuner Section......................................................................... 13

CD Section ............................................................................ 14

5. DIAGRAMS

5-1. Circuit Boards Location .................................................... 15

5-2. Block Diagram –CD Section– ........................................... 17

5-3. Block Diagram –Main Section– ........................................ 19

5-4. Printed Wiring Board –Main Section– .............................. 21

5-5. Schematic Diagram –Main Section (1/4)– ........................ 23

5-6. Schematic Diagram –Main Section (2/4)– ........................ 25

5-7. Schematic Diagram –Main Section (3/4)– ........................ 27

5-8. Schematic Diagram –Main Section (4/4)– ........................ 29

5-9. Schematic Diagram –CD Section– .................................... 31

5-10. Printed Wiring Board –CD Section– ................................. 33

5-11. Schematic Diagram –Key Section–................................... 35

5-12. Printed Wiring Board –Key Section– ................................ 37

5-13. Schematic Diagram –Display Section– ............................. 39

5-14. Printed Wiring Board –Display Section– .......................... 41

5-15. Schematic Diagram –Power Section– ............................... 43

5-16. Printed Wiring Board –Power Section– ............................ 45

5-17. IC Pin Descrption .............................................................. 47

5-18. IC Block Diagrams ............................................................ 49

SERVICE NOTE

When the CD block is going to be inspected, be sure to
connect beforehand the jig (J-2501-020-A) between the CD
board (CNP706) and the DISPLAY board (CNP802).

6. EXPLODED VIEWS

6-1. Cabinet Section ................................................................. 54

6-2. Front Cabinet Section ........................................................ 55

6-3. Rear Cabinet Section ......................................................... 56

6-4. Tape Mechanism Deck Section-1 (MF-PHCZ10) ............. 57

6-5. Tape Mechanism Deck Section-2 (MF-PHCZ10) ............. 58

6-6. CD Changer Section-1 ...................................................... 59

6-7. CD Changer Section-2 ...................................................... 60

6-8. Optical Pick-up Section (KSM-213CCM) ........................ 61

6-9. Speaker Section ................................................................. 62

7. ELECTRICAL PARTS LIST......................................... 63

— 3 —

SECTION 1

GENERAL

(L-ch speaker)

wa
w;
ql

qk
qj

1 DISC SELECT indicator
2 DISC CHANGE button
3 OPEN/CLOSE button
4 SOUND button
5 SURROUND button
6 VOLUME
7 MEGA BASS button
8 MODE button
9 REPEAT button
0 ENTER button
qa MULTI JOG dial/TUNE +, –,

TAPE m, M button

qs LINE button

qd

1

qs

qa

wfwdws

qfqgqh

0

3

2

(R-ch speaker)

qd RADIO/CD/TAPE button
qf DUBBING button
qg REC button
qh i jack
qj DECK A/B button
qk COUNTER RESET button
ql DISPLAY button
w; SLEEP button
wa CLOCK button
ws POWER button
wd TIMER button
wf STANDBY button

4
5

6

7
8
9

— 4 —

This section is extracted

The Audio Emphasis

23

The Audio Emphasis

Displaying the

spectrum analyzer

You can display 3 different patterns of

the audio signal you are listening to by

using the remote.

SPCANL

Displaying the audio signal pattern

Press SPCANL to display the audio signal pattern you

are listening to.

Each time the button is pressed, the display changes.

Choose To display

Peak hold input level of each band and at the same

time the highest level of each band for a

certain moment

Normal input level of each band

Peak the highest level of each band

DECK

A/B

BAND

SPCANL

COUNTER

RESET

LINE

DISC 3DISC 2

CD/RADIO

DISC 1

SURROUND

DISPLAY

SOUND

SLEEP

CLOSE

PO

WER

CD OPEN/

TAPE

TUNERADIO

REPEAT

CD

VOL

The Timer

24

Setting the clock

- -:- - indication appears in the

display until you set the clock.

The Timer

Tip

The time display

system:

12-hour system

AM12:00 = midnight

PM12:00 = noon

CLOCK

ENTER

MEM

MULTI JOG

Before you begin, hook up the system (see pages 31 -

34).

1

Press and hold CLOCK until the hour digit flashes.

2

Set the clock.

1 Turn MULTI JOG to

set the hour and

press ENTER MEM.

2 Turn MULTI JOG to

set the minutes.

3

Press ENTER MEM.

The clock starts from 00 seconds.

from instruction manual.

— 5 —

SECTION 2

d

DISASSEMBLY

• The equipment can be removed using the following procedure.

Side PlateSet

Cabinet, Rear

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

2-1. SIDE PLATE

1

Seven screws (BTP 3 x 10)

Cabinet assy, front

2

Plate (L), side

3

Screw

Key (A) Board, Key (B) Board and LED Board

Cassette Mechanism Deck

Main Board and Transformer, Power

CD Mechanism Deck

(+P 3 x 10)

Charger Base

5

Display Boar

Optical Pick-Up

Plate (R), side

2-2. CABINET, REAR

4

Cabinet, top and

CD mechanism

1

CNP706

2

CNP705

7

CNP903

Two screws

3

(+P 3 x 10)

4

Seven screws (BTP 3 x 10)

Cord, power

9

5

Five screws

(BTP 3 x 10)

6

Two screws

(BTP 3 x 10)

0

Cabinet, rear

8

— 6 —

Stopper, AC cord

2-3. CABINET ASSY, FRONT

7

CNP906

8

Two screws

(+PTT 3 x 10)

CNP302

3

4

CNP307

2

CNP301

1

CNP303

9

Cabinet assy, front

6

CNP909

5

CNP310

2-4. KEY (A) BOARD, KEY (B) BOARD AND LED BOARD

1

3

Key (B) board

9

Eight Screws

(+P 2.6 x 8)

2

CNP808

Three screws (+P 2.6 x 8)

4

Five screws

(+P 2.6 x 8)

6

LED board

qa

Key (A) board

5

CNP809

0

Nine Screws

(+P 2.6 x 8)

8

Nut

7

Button, select

— 7 —

2-5. DISPLAY BOARD

3

Two screws

(+P 2.6 x 8)

7

5

CNP801-1

Display board

Two screws

4

(+P 2.6 x 8)

6

CNP801-2

2-6. CASSETTE MECHANISM DECK

1

Two screws

3

Cassette mechanism deck

(+P 3 x 10)

2

Nut

1

Button, VOL

2

Two screws

(+P 3 x 10)

Belt threading

Flywheel (B)

Capstan motor

Belt

Belt

Flywheel (A)

— 8 —

2-7. MAIN BOARD AND TRANSFORMER, POWER

6

Five screws (+BVTT 3 x 20)

7

Four screws

(+BVTT 4 x 6)

Transformer,

8

power (T901)

2

Harness

9

Amplifier board

4

Main board

2-8. CD MECHANISM DECK

1

Three screws

4

Door, CD

1

Release lock of the

connector in the

direction of the arrow.

(+P 3 x 10)

5

Tow
screws
(+PTT 3 x 10)

3

Cabinet, top

2

Three screws

3

Screw

(+PTT 3 x 10)

(+P 3 x 10)

— 9 —

5

CD mechanism deck

2-9. BASE, CHANGER

7

Base, changer

1

Screw (P 2.6 x 8)

2

Guide, rail

6

5

CN6

3

Screw

(P 2.6 x 8)

4

Guide, rail

2-10. OPTICAL PICK-UP

2

Take off the spring.

1

Take off the spring.

7

Screws tapping, (M2.6 x 20)

8

Screws tapping, (M2.6 x 20)

9

Optical pick-up

3

Connector

6

Mechanism assy, CD

— 10 —

5

4

Screws (PTPWH 3 x 8)

SECTION 3

y

MECHANICAL ADJUSTMENTS

SECTION 4

ELECTRICAL ADJUSTMENTS

PRECAUTION

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

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

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

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 DECK A DECK B

Mode Torque meter Meter reading

Forward CQ-102C

Forward
back tension (0.03 to 0.07 oz • inch)

Fast Forward
and CQ-201B
Rewind

CQ-102C

22.5 to 55 g • cm

(0.31 to 0.76 oz • inch)

2 to 5 g • cm

60 to 120 g • cm

(0.83 to 1.67 oz • inch)

TAPE SECTION 0 dB = 0.775 V

Standard Output Level

Output terminal SP OUT PHONES OUT

load impedance 6 Ω 32 Ω

output signal level 0.775 V (0 dB) 0.25 V (–10 dB)

Test Tape

Tape Signal Used for

WS-48A 3 kHz, 0 dB tape speed adjustment

P-4-A063 6.3 kHz, –10 dB head azimuth adjustment

Tape Speed Adjustment DECK A DECK B

Procedure:

Mode: Playback

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

set

digital frequenc
counter

0000

32 Ω

Tape Tension Measurement DECK A DECK B

Mode Tension meter Meter reading

Forward CQ-403A

more than 150 g

(more than 5.29 oz)

J901 (phones)

Adjustment Value: normal tape speed
Adjust the tape speed adjustment control inside motor, so that the
frequency counter reading becomes 3,000 Hz.

Specification Value:

Digital frequency counter

2,985 – 3,015Hz

Frequency difference between the beginning and the end of the tape
should be within 1.5% (45 Hz).

Adjustment Location:

CASSETTE DECK

Tape speed adjustment
control inside motor

— 11 —

REC/PB Head Azimuth Adjustment DECK A DECK B

n

Procedure:

1. Mode: playback

test tape
P-4-A063
(6.3 kHz, –10 dB) level meter

32 Ω

set

J901 (phones)

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: playback head (deck A)

record/playback head (deck B)

adjustment screw

L-CH
peak

screw
position

3. Phase Check
Mode: playback

test tape
P-4-A063
(6.3 kHz, –10 dB)

R-CH
peak

Output
level

L-CH

set

R-CH

within
1 dB

L-CH
peak

L-CH
32 Ω

32 Ω
R-CH

J901 (phones)

R-CH
peak

osilloscope

VH

withi
1 dB

angle

Screen pattern

in phase 45˚ 90˚ 135˚ 180˚

good wrong

Note: Finish the screw adjustment with a turn in the clockwise

direction.
After the adjustment, lock the adjustment screw.

— 12 —

TUNER SECTION 0 dB = 1 µV

)

• FM Section

Setting:

BAND switch: FM

FM RF signal
generator

antenna terminal

0.01 µF

set

22.5 kHz frequency
deviation by 1 kHz signal
Output level : as low as possible

FM FREQUENCY COVERAGE

CHECK

Frequency Display 87.5 MHz 108 MHz

Reading on Digital voltmeter 1.65 ± 0.15V 4.0 ± 0.2 V

Adjustment Part <confirmation> <confirmation>

FM TRACKING CHECK

Adjust for a maximum reading on level meter.

<confirmation> <confirmation>

87.5 MHz 108 MHz

• AM Section

Setting:

BAND switch: 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

J901 (phones)

AM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

CFT1

450 kHz

AM FREQUENCY COVERAGE

ADJUSTMENT

Frequency Display 530 kHz 1,710 kHz

Reading on Digital voltmeter 0.75 ± 0.15 V 5.4 ± 0.2 V

Adjustment Part L5 <confirmation>

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3 CT1

620 kHz 1,400 kHz

Adjustment Location: See page 14.

• Connecting Digital Voltmeter (FM and AM)

digital
voltmeter

TP1 (VT)

100 kΩ

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

— 13 —

Adjustment Location: main board

G

[MAIN BOARD] (conductor side)

L5
AM FREQUENCY
COVERAGE
adjustment

TP1
(VT)

CT1
AM TRACKING
adjustment

IC1

CFT1
AM IF adjustment

L3
AM TRACKIN
adjustment

CD SECTION

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

SERVICE NOTE

When the CD block is going to be inspected, be sure to
connect beforehand the jig (J-2501-020-A) between the CD
board (CNP706) and the DISPLAY board (CNP802).

FOCUS BIAS CHECK

1. Connect the oscilloscope between IC701 pin #£ (TP RFO) and

GND on Main board.

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

3. Press the ^ 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 : 200 mV (10 : 1 probe in use)
TIME/DIV : 500 nS

π

Test Point:

[CD BOARD] (conductor side)

TP (RF0)

R720

IC701

RF level :

1.3 ± 0.5 Vp-p

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

— 14 —

5-1. CIRCUIT BOARDS LOCATION

SECTION 5

DIAGRAMS

POWER(1) board

LED board

DISPLAY board

KEY (A) board

HEADPHONE board

LOAD SW board

O/C SW board

DISC COUNT SW board

CD board

CD MOTOR board

MOTOR board

DISC STOP SW board

AMPLIFIER board

MAIN board

POWER(2) board

KEY(B) board

— 15 —

Note on Printed Wiring Board:

• X : parts extracted from the component side.

• Y : parts extracted from the conductor side.

• b : Pattern from the side which enables seeing.

Note on Schematic Diagrams:

• All capacitors are in µF unless otherwise noted. pF: µµF

50 WV or less are not indicated except for electrolytics
and tantalums.

• All resistors are in Ω and 1/

specified.

¢

•

: internal component.

4

W or less unless otherwise

• 2 : nonflammable resistor.

• C : panel designation.

• H : adjustment for repair.

• U : B+ Line.

• Power voltage is dc 9 V and fed with regulated dc power

supply from battery terminal.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.

Note:

The components identi­fied by mark ! or dotted
line with mark ! are criti­cal for safety.
Replace only with part
number specified.

Note:

Les composants identifiés par
une marque ! sont critiques
pour la sécurité.
Ne les remplacer que par une
piéce portant le numéro
spécifié.

– For Radio, TAPE section MAIN (1/2) –

No mark : FM
( ) : AM
< > : CD PLAY
[ ] : TAPE PLAY

• Voltages are taken with a VOM (Input impedance 10 MΩ).
Voltage variations may be noted due to normal produc­tion tolerances.

• Signal path.

F : FM
E : PB
a : REC
J : CD

• Abbreviation
CND : Canadian

— 16 —

5-2. BLOCK DIAGRAM – CD SECTION –

PHC-Z10

DISC STOP SW BOARD

SW704

TT POST

DISC COUNT SW BOARD

SW703

DISC COUNT

LOAD SW BOARD

OPEN

CLOSE

SW701

CNP714

16

CNP710

CNP712

3

1

2

CNP2

FM EXT

ANT

CNP1

FM EXT

ANT

DOWN

UP

MAIN BOARD

OPTICAL PICK-UP

BLOCK

(KSS-213C)

VR

FOCUS

COIL

TRACKING

COIL

MOTOR BOARD

M701

DISC

MOTOR

CNP711

1 1

22

CNP709

1 1

22

O/C SW BOARD

M702

TRAY

MOTOR

SW702

CNP713

3

1

2

VC

A

B

C

D

E

F

LD

GND

PD

F+

T+

SLED

MOTOR

SPINDLE

MOTOR

CNP702

M

CNP708

M

F-

T-

(1/2)

M

M

LIMIT

SW

4

5

2

3 3

6

7

4

5 5

1

2

3

TUNER 5V

L1

D6

L5

MW OSC

CT2

TUNER 5V

AM

F.COVER

CNP701
1

2

5

6

7

4

3

8

10

9

12

11

13

16

15

14

CNP705
3

4

1

2

5

6

CNP707
4

5

2

CNP703
6

7

4

1

2

3

D5

CD BOARD

+5V

C STOP

C COUNT

C UP/DN

C CL/OP

1

D7

L3

MW ANT

Q701

LD

DRIVE

CF1

B.P.F

TUNER 5V

3

TUNER 5V

L4

RF AMP

Q4

TRACKING

AM

2

24

21

22

20

RF AMP

IC701

51

VC

38

PD1

39

PD2

42

E

41

F

36

LD

37

PD

MOTOR/COIL DRIVE

IC702

18

OUT4+

17

OUT4-

20

OUT5+

19

OUT5-

2

OUT1+

1

OUT1-

3

OUT2+

4

OUT2-

30

OUT6+

31

OUT6-

14

OUT3+

15

OUT3-

FRONT-END

IF AMP,DET,FM MPX

IC1

FM RF I

FM RF O

FM OSC

AM RF

AM OSC

RFO

33

RFI

32

22

DATA

20CLK

21XLT

27FOK

24COUT

SENS1

25

SENS2

26

XRST

23

IN4

23

IN5

21

IN1

6

IN2

5

IN6F

29

IN6R

28

IN3F

13

IN3R

12

MUTE

27

TC

SECTION

MPX

16

CNP303

(1/2)

TUNER 5V

20

18

19

10

23

IC801(1/2)

TC

A

SECTION

(1/2)

• RCH is omitted

• Signal Path

: FM

: CD

MPX

FM

15

MPX

MUTE

Q3

CNP803

(1/2)

7

7

20

18

19

10

9

9

23

MUTE

12

11

R-CH

DISPLAY BOARD

SYSTEM CONTROL

9

R DATA IN

11

R DATA OUT

10

R CLK

47

R CE

52

C DATA

51

C CLOCK

50

C LATCH

25

C SQCK

6

C SCOR

26

C SQSO

24

C SENS

56

B MUTE

27

C SENS2

53

C XRST

49

STB

55

CD PLAY

15

C STOP

20

C COUNT

29

C UPDWN

30

C CLOP SW

TU-L

CF2

10,7MHHz

10

23 5

VCC1 VCC2

QUAD

CF3

SQCK

SCOR

SQSO

6

14

7

4

5

XLAT

SENS

XRST

10.7MHz

CFT1

AM IFT

PLL
IC2

MO/ST

141014

ST IND

9

BAND

BAND

IF IN

DO

DI

CK

CE

X701

16.9344MHz

2

3

1

8

11

5

3

4

2

FM

13

AM

12

XO

21

XI

20

LP OUT

19

LP IN

18

PD

17

67

65

74

76

7DATA

CLK

9

8

4

57

5

6

62

71XTAI

72XTAO

79

IC704

LEVEL
SHIFT

CNP704

CNP706

C STOP
C COUNT

C UP/DN

C CL/OP

18

13

7

6

FM IF

AM IF

MO/ST

ST IND

BAND

13

11

12
15

10

14

17

18

16

3

1 1

9

3

8

1

5

4

2

7

6

13

11

12
15

10

14

17

18

16

3

9

3

8

1

5

4

2

7

6

BUFFER

SECTION

CNP309

CNP802

FM

DET

FM/AM

BUFFER

AM

DET

IF

IFOUT

17

RADIO

MUTE

Q1

RDATA

R-CH

RCLK

STB

C

DI

CD-L

B

TC

MIX OUT

FM

MIX

FM

OSC

AM

MIX

AM

OSC

IC705

4

OSC

19

75kHz

DIGITAL SERVO

DIGITAL SIGNAL PROC.

35

RF

12

DATO

14

CLKO

13

XLTO

18

FOK

11

CIN

10

SEIN

6

FEO

13

TAO

16

SLO

21

MDP

15

SPOA(LIMIT)

AM

IF

X1

D/A CONV.

IC703

L OUT1

A OUT1

L OUT2

A OUT2

SMUTE

— 17 —

— 18 —

PHC-Z10

5-3. BLOCK DIAGRAM – MAIN SECTION –

A HALF

A HEAD

B HALF

B HEAD

REC FWD

PB

HEAD

REC/PB

HEAD

ERASE

HEAD

CASSETTE DECK

MECHANISM

• RCH is omitted

• Signal Path

: PB (DECK A)

: PB (DECK B)

: REC (DECK B)

: FM

: CD

DECK-A

DECK-B

SOL

A

SOL

B

M

P DET

A

P DET

B

LAUX

CNP301

1

CNP302

5

4

CNP310

2

CNP307

12

10

9

1

13

6

5

4

8

3

16

MAIN BOARD

TUNER

SECTION

CD

SECTION

Q307 Q308

(2/2)

A

B

TU-L

CD-L

BIAS
TRAP

L306

9

8

7

BIAS
OSC
Q309

REC/PB SWITCH

IC304

Q310

Q311

R CH

A+8V

4

DECK A/B SELECT

PB/REC EQ AMP

IC305

24

PRE OUT

CH2A

23

CH2B

MIX OUT

16

REC OUT2

A/B SW ALC

19 13

Q314 Q306

REC IN2

20

14

6

MAIN +5V

+12V

+9V

REC MUTE

BUFFER

Q312,313

SOL A
DRIVE

Q319,320

SOL B
DRIVE

Q317,318

MOTOR

DRIVE

Q315,316

Q305

+5V REG

Q914

12

13

3

4

11

14

4

14

11

12

13

5

7

6

MUTE
Q304

IC306

SHIFT

REGISTER

IC306

SHIFT

REGISTER

+9V REG
Q911,912

IC302

31

1

9

2

3

2

1

10

SURROUND PROC.

5

4

7

6

8

RCLK

RDATA

STB

DI

+12V REG
Q909,910

IC301

L OUT

LIN2

27

LIN1

LIN4

LIN3

22SDA

D303

21SCL

MUXO-L

TUNER

SECTION

C

SW301
RESET

Q323

+B SW

Q322

D906-909

Q905

TUNER +5V MAIN +5V

POWER

CONT

Q907,908

MUTE
Q102

RECT

Q906

CNP305A

(1/2)

IC303

31

CNP305B

(1/2)
DIST

CNP303

(2/2)

MBAS

VDATA

VCLK/VER

SPEANA

165SL

165QH

T -A CONT

T-B CONT

RESET

RADIO

SFTY

CNP305A

(2/2)

CNP305B

(2/2)

PCON

AMPLIFIER BOARD

CNP910

(1/2)

1

L

4

3

15

14

1

4

PM

5

RM

8

16

22

21

13

6

17

4

AC

1

AC

3

1

L

CNP908

(1/2)

4

DIST

CNP909

(1/2)

5

PROT

7

SRELAY

10

AMUTE

DISPLAY BOARD

CNP804

(1/2)

5

PROT

7

SRELAY

10

A MUTE

CNP803

(2/2)

3

MBAS

15

VDATA

14

VCLK/VER

1

SPEANA

4

PM

5

RM

8

165SL

16

165QH

22

T-A CONT

21

T-B CONT

13

RESET

6

RADIO

17

SFTY

MUTE

MUTE

CONT

Q103

Q916

MUTE
CONT
Q915

Q922

(2/2)

SPEANA

(B.P.F)
IC803

1

AOUT

AIN

17

A

10

B

11

C

12

RESET

1

3

IC804

15

14

SYSTEM CONTROL

IC801(2/2)

12

PROT

62

SRELAY

57

AMUTE

63

MBASS

31

VDATA

32

VCLK/VER

33

SPANA

64

SPN A

65

SPN B

REG CHK

66

SPN C

61

PM

60

RM

48

165SL

14

165QH

4

T-A CONT

5

T-B CONT

38

RST

59

RADIO

13

SATY

POWER AMP

IC902

IN2

NF2

REF-VSS

P1

P18

G1

G14

VFDP

PSAVE

PCON

TEX

TX

XTAL

EXTAL

R SHFT

VOL1

VOL2 17

JOG1

JOG2

REMOTE

KEY1 34

KEY2

KEY3

DISC1

DISC2

DISC3

12

OUT2-

OUT2+

87

70

2

.

1

.

100

90

.

84

45

54

58

7

43

42

40

39

46

16

18

19

8

35

36

67

68

69

X802

8MHz

11

10

OVER LOAD

DETECT

Q104

Q104

PROTECTOR

Q917-919

REG CHECK

X801

32.768kHz

CONTROL
Q801,802

VOLUME

FL801

LIQUID CRYSTAL

DISPLAY PANEL

Q807

OSC

SW801

Q804-806

LED

DRIVE

Q803

LED

DRIVE

D904

+5.6V

R-CH

CNP804

-35V

PSAVE

PCON

AC IN

CNP805

CNP801

(2/2)

+

SP901

CNP907

CNP904

3

-

+

-

HEADPHONE BOARD

1

1

2

2

4

4

POWER(2)

BOARD

CNP901

1

1

3

3

9

9

8

8

7

7

5

5

6

6

RELAY
DRIVE

Q904

D910-913

IC901

+5.6V

1

REG

KEY(B) BOARD

CNP807

3

CNP806

1

2

3

LED BOARD

L

SP902

R

CNP906

RY901

SW829,830

FUNCTION

KEY

SW831,832

FUNCTION

KEY

LED802-807

J902

SPEAKER

POWER

TRANSFOMER

T901

POWER

TRANSFOMER

T902

J901

PHONES

POWER(1)

BOARD

CNP905

2

1

CNP902

1

2

1

2

CNP903

AC
IN

RY902

RELAY
DRIVE

Q920,921

MUTE

Q105,106

SWITCH

Q901-903

+B

-B

CNP909

(2/2)

FL2

FL1

33

FL2

22

FL1

11

1111

19

66

14

CNP910

(2/2)

4

CNP908

(2/2)

3

1

CNP805

2

2

3

3

1

1

3

2

1

6

7

8

5

CNP801

3

2

1

6

7

8

5

-35V

PSAVE

PCON

+5.6V

ACIN

AC

PCON

AC

-35V REG
Q923

KEY(A) BOARD

JOG

IC802

REMOTE
CONTROL
RECEIVER

SW823-828

FUNCTION

KEY

SW813-822

FUNCTION

KEY

SW803-812

FUNCTION

KEY

LED801

+12V

D902

RECT

CNP807

CNP806

R CH

R CH

131

4 4

1

2

3

— 19 — — 20 —