Sony CFD-V3, CFD-V7, CFD-V7L Schematic

CFD-V3/V7/V7L

SERVICE MANUAL

Ver 1.3 2002.06
With SUPPLEMENT-1

Photo : CFD–V7

Canadian Model

UK Model

Australian Model

CFD-V7

AEP Model

CFD-V3/V7/V7L

E Model

CFD-V3/V7

Model Name Using CD Section CFD-S36
Similar Mechanism Tape Section CFD-S36
CD Mechanism Type KSM-213CDP
Optical Pick-up Type KSS-213C
T ape Transport Mechanism Type MF-V5-117

CD player section

System

Compact disc digital audio system

Laser diode properties

Material: GaAlAs
W ave 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

Wow and flutter

Below measurable limit

SPECIFICATIONS

Radio section

Frequency range

CFD-V3/V7
FM Italy 87.5 - 108 MHz

European countries 87.6 - 107 MHz
Other countries 87.6 - 108 MHz

AM Italy 526.5 - 1 606.5 kHz

European countries 531 - 1 602 kHz

Other countries 530 - 1 710 kHz
CFD-V7L
FM 87.6 - 107 MHz
LW 153 - 279 kHz

IF

FM: 10.7 MHz
AM/LW: 455 kHz

Aerials

FM: T elescopic aerial
AM/LW: Built-in ferrite bar aerial

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): 80 - 10 000 Hz

– Continued on page 2 –

9-873-079-14

2002F0200-1
© 2002.06

CD RADIO CASSETTE-CORDER

Sony Corporation

Personal Audio Company
Published by Sony Engineering Corporation

CFD-V3/V7/V7L

Ver 1.2 2001.08

General

Speaker

Full range: 10 cm dia., 3.2 Ω, cone type (2)

Outputs

Headphones jack (stereo minijack)
For 16 - 68 Ω impedance headphones

Maximum power output

3.6 W

Power requirements

For CD radio cassette-corder:
120 V AC, 60 Hz (Canadian, E4 model)
230 V AC, 50 Hz (Except Canadian model)
110-120V AC/220-240V AC
50/60Hz changeable (E4 model)
9 V DC, 6 R20 (size D) batteries

Power consumption

AC 20 W

Battery life

For CD radio cassette-corder:
FM recording
Sony R20P: approx. 13.5 h
Sony alkaline LR20: approx. 20 h
Tape playback
Sony R20P: approx. 7.5 h
Sony alkaline LR20: approx. 15 h
CD playback
Sony R20P: approx. 2.5 h
Sony alkaline LR20: approx. 7 h

Dimensions

Approx. 420 × 165 × 256 mm (w/h/d)
(16 5⁄8 × 6 1⁄2 × 10 1⁄8 inches) (incl. projecting parts)

Mass

Approx. 4.1 kg (9 lb. 1 oz) (incl. batteries)

Supplied accessory

Mains lead (1)

Design and specifications are subject to change without notice.

Information
For customers in Europe

This Compact Disc player is classified as a CLASS 1 LASER
product.
The CLASS 1 LASER PRODUCT label is located at the bottom
of the player.

CAUTION

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

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

À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS 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 PIÈCES SONY DONT LES NUMÉROS SONT
DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS
PUBLIÉS PAR SONY.

2

TABLE OF CONTENTS

Specifications ............................................................................... 1

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

2. GENERAL

Location and Function of Controls ....................................... 4

3. DISASSEMBLY

3-1. Cabinet (Front) Sub ASSY, Cabinet (Rear) ................. 5

3-2. Control Board .............................................................. 5

3-3. Cabinet (upper) ............................................................ 6

3-4. Power Board, Inlet Board, BATT (R) Board,

BATT (L) Board ........................................................... 6

3-5. Volume Board, FM SW Board, Main Board ............... 7

3-6. PRE Board, Mechanism Deck,

Optical Pick-up Section, CD Board ............................. 7

3-7. Belt, M601 (Capstan / Reel Motor),
“HRP901 Head, Magnetic (Record/Playback)”,

HE901 Head (Erase) .................................................... 8

3-8. Optical Pick-up (KSS-213C) ....................................... 8

4. DIAL POINTER INSTALLATION .............................. 9

5. ADJUSTMENTS

5-1. Mechanical Adjustments............................................ 10

5-2. Electrical Adjustments ............................................... 10

6. DIAGRAMS

6-1. Explanation of IC Terminals ...................................... 13

6-2. Block Diagrams – Tuner/TC Section – ..................... 15

6-3. Block Diagrams – Main Section – ............................. 16

6-4. Block Diagrams – CD Section – ................................ 17

6-5. Printed Wiring Boards – Main Section –

(Last digit :-11) ............ 18

6-6. Schematic Diagrams – Main Section (1/3) –

(Last digit :-11) ............ 19

6-7. Schematic Diagrams – Main Section (2/3) –

(Last digit :-11) ............ 20

6-8. Schematic Diagrams – Main Section (3/3) –

(Last digit :-11) ........... 21

6-9. Printed Wiring Boards – Main Section –

(Last digit :-13) ............ 22

6-10. Schematic Diagrams – Main Section (1/3) –

(Last digit :-13) ............ 23

6-11. Schematic Diagrams – Main Section (2/3) –

(Last digit :-13) ............ 24

6-12. Schematic Diagrams – Main Section (3/3) –

(Last digit :-13) ........... 25

6-13. Printed Wiring Boards – Control/Power Section –

(Except V7 :E4 model) ..... 26

6-13. Printed Wiring Boards – Control/Power Section –

(V7 :E4 model) ................. 27

6-15. Schematic Diagrams – Control/Power Section – ...... 28

6-16. Schematic Diagrams – CD Section – ........................ 29

6-17. Printed Wiring Boards – CD Section –...................... 30

7. EXPLODED VIEWS

7-1. Front Cabinet Section ................................................ 34

7-2. Rear Cabinet Section ................................................. 35

7-3. Upper Cabinet Section ............................................... 36

7-4. Mechanism Deck Section (1) .................................... 37

7-5. Mechanism Deck Section (2) .................................... 38

7-6. CD Block Section ...................................................... 39

8. ELECTRICAL PARTS LIST ...................................... 40

SECTION 1

SERVICING NOTES

CFD-V3/V7/V7L

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
pick-up block. Therefore, when checking the laser diode
emission, observe more than 30 cm away from the objective
lens.

CHUCK PLATE JIG ON REPAIRING

On repairing CD section, playing a disc without the CD lid, use
Chuck Plate Jig.

• Code number of Chuck Plate Jig : X-4918-255-1

LASER DIODE AND FOCUS SEARCH OPERATION
CHECK

1. Press CD open knob.

2. Open the lid for CD.

3. Push on SWITCH (S801) as following figure.

4. Confirm the laser diode emission while observing the
objecting lens. When there is no emission, Auto Power
Control circuit or Optical Pick-up is broken.
Objective lens moves up and down once for the focus
search.

Insert a precision
screw driver and push
SWITCH (S801)

3

CFD-V3/V7/V7L

LOCATION AND FUNCTION OF CONTROLS

SECTION 2

GENERAL

This section is extracted from
instruction manual.

Inserting a cassette

With the side you want to
play facing upward

* FM MODE•ISS for CFD-V7L

VOLUME

MEGA BASS

REC PLAY REW FF

i

STOP/EJECT

PAUSE

PLAY MODE

ENTER

OPR/BATT

FUNCTION .,>

TUNING

FM MODE (rear)

Z PUSH OPEN/CLOSE

x

u

Loading a CD

c

With the labeled side up

Display

C

Total track number

D

Track number

E

Programmed track

4

DISASSEMBLY

8

z

The equipment can be removed using the following procedure.

SECTION 3

CFD-V3/V7/V7L

Ver 1.1 2001.04

Cabinet (front) sub ASSY

Set

Cabinet (rear) Cabinet (upper)

Control board

Power board, Inlet board,
BATT (R) board, BATT (L) board

Volume board,
FM SW board, Main board

PRE board, Mechanism deck,
Optical pick-up section, CD board

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

3-1. CABINET (FRONT) SUB ASSY, CABINET (REAR)

Knob (vol )

8

Cabinet (front) sub assy

7

Screw

+BVTP 3

5

Belt, M601 (capstan/reel motor),
HRP901 Head, Magnetic (Record/playback),
HE901 Head (Erase)

×

12

Cabinet (rear)

4

Screw

+BVTP 3

×

12

3-2. CONTROL BOARD

6

Open the Lid (CD)

9

Cabinet (front) sub assy

3

3

Screws

+BVTP 3

CONTROL board

×

12

2

Screws

+BVTP 3

1

Lid, battery case

×

12

2

Screws

+BVTP 2.6

1

Screws

+BVTP 2.6

×

8

×

5

CFD-V3/V7/V7L

8

3-3. CABINET (UPPER)

5

6

Screw +BVTP 3 × 10

2

Open the Holder assy, cassette by

pressing STOP/EJECT button.

Screw +BVTP 3 × 12

STOP/EJECT

button

1

Screws

+BVTP 3

×

12

3

Open the Lid (CD)

Cabinet (upper)

4

Screw

+BVTP 3

Remove the handle in
the direction of the arrow.

×

12

8

9

7

CNP902

(POWER board)

3-4. POWER BOARD, INLET BOARD, BATT (R) BOARD, BATT (L) BOARD

BATT (R) board

4

CNP907

8

Cabinet (rear)

5

Screws

+WH 3

×

8

6

CNP90

1

+BVTP 3 × 10

6

Screws

POWER board

2

+BVTP 3 × 10

Screws

3

INLET board

CNP907

7

BATT (L) board

Cabinet (rear)

3-5. VOLUME BOARD, FM SW BOARD, MAIN BOARD

)

4

Remove solder

(four places)

0

Screws

+BVTP 3 × 10

MAIN board

5

Screw

+BVTP 3

FM SW board

2

Remove solder

(five places)

CFD-V3/V7/V7L

Ver 1.1 2001.04

×

10

7

Wire, parallel (CN802)

(15 core)

6

KH801

1

Screws

+BVTP 3 × 10

qa

S801

3

VOLUME board

8

CNP304

9

Wire, parallel (CNP305)

(10 core) (V3, V7)
(12 core) (V7L)

Cabinet(upper)

3-6. PRE BOARD, MECHANISM DECK, OPTICAL PICK-UP SECTION, CD BOARD

8

7

Remove solder

(four places)

5

Screws

+PWH 2.6

×

10

CD board

9

Screw

+BVTT 2

×

6

0

Wire, parallel (CNP701

(16 core)

5

Screws +PWH 2.6 × 10

1

Screws +BVTP 3 × 10

3

Screw +BVTT 2 × 6

PRE board

Optical pick-up section

6

2

4

1

Screw

+BVTP 3

Mechanism deck

Cabinet(upper)

×

10

7

CFD-V3/V7/V7L

)

Ver 1.1 2001.04

3-7. BELT, M601 (CAPSTAN / REEL MOTOR), “ HRP901 HEAD, MAGNETIC (RECORD/PLAYBACK) ”,

HE901 HEAD (ERASE)

HRP901 Head, Magnetic (Record/ Playback)

HE901 Head (Erase)

7 Claws

5 Claws

3-8. OPTICAL PICK-UP (KSS-213C)

8

3 Belt

1 Screws

+B 2.6 × 5

Mechanism deck

6

2

4 M601

(Capstan/reel motor)

Claws

4

Shaft, sled

Cover, CD

Claw

Optical pick-up (KSS-213C)

1

Claw

3

Bend the stopper

5

Gear

Claw

2

Chassis ASSY, motor (MB) (spindle

8

SECTION 4

)

DIAL POINTER INSTALLATION

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

1 Align the pointer with the groove of “cabinet (front) sub ASSY” and insert it as shown in the illustration.
2 Align knob (TU) with “cabinet (front) sub ASSY” and fasten the screw.

Cabinet (front) sub ASSY

1 Pointer

knob (Tu)

CFD-V3/V7/V7L

2 Screw (+BVTP 2.6 × 8)

3 Turn the knob (TU) fully in the direction of the allow as shown in the illustration.
4 Turn the tuning capacitor gear fully in the direction of the allow as shown in the illustration.
5 Fasten the “cabinet (front) sub ASSY” and cabinet (rear) with the screws.

5

3

Tuning knob

4

Tuning capacitor gear

Cabinet (rear

9

CFD-V3/V7/V7L

c

r

y

SECTION 5

ADJUSTMENTS

5-1. MECHANICAL ADJUSTMENTS

PRECAUTION

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

record/playback head pinch roller
erase head rubber belts
capstan

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. The adjustments should be performed with the rated power sup­ply voltage (9V) unless otherwise noted.

Torque Measurement

Torque Torque Meter Meter Reading

1.77 – 5.88 mN•m

Forward CQ-102C (18 – 60 g•cm)

(0.25 – 0.83 oz•inch)

Forward
Back Tension

Fast Forward CQ-201B (45 – 95 g•cm)

Rewind CQ-201B (45 – 95 g•cm)

CQ-102C (1.0 – 5.0 g•cm)

Tape Tension Measurement

Torque Meter Meter Reading

CQ-403A

0.1 – 0.49 mN•m

(0.014 – 0.069 oz•inch)

4.42 – 9.31 mN•m

(0.62 – 1.32 oz•inch)

4.42 – 9.31 mN•m

(0.62 – 1.32 oz•inch)

more than 60g

(more than 2.12 oz)

Adjustment Location : Mechanism deck

Tape speed adjustment
control inside motor

TUNER SECTION

0dB = 1 µV

AM Section

Function switch : AM or LW
Volume : MIN

AM RF signal
generator

Put the lead-wire
antenna close to
the set.

5-2. ELECTRICAL ADJUSTMENTS

TAPE RECORDER SECTION

Standard Output Level

Output terminal HP OUT

load impedance 32 Ω

output signal level 0.25V (–10dB)

Test Tape

Type Signal Used for

WS-48A 3kHz, 0dB Tape Speed Adjustment

Tape Speed Adjustment

Procedure :

Mode : Playback

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

set

Adjustment Value : 3,000Hz
Standard Value : 2,940 - 3,060Hz

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

32Ω

J301 (phones)

0dB = 0.775V

digital frequenc
counter

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

FM Section

Function switch : FM
Volume : MIN

FM RF signal
generator

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

set

32Ω

J301 (phones)

0.01µF

level mete

telescopi
antenna
terminal

10

• Repeat the procedures in each adjustment several times, and the

)

8

GND

51pin

TEST mode : momentarily short

[MAIN BOARD] (Conductor side)

R730

C

J

W

C

frequency coverage and tracking adjustments should be finally
done by the trimmer capacitors.

• Abbreviation
CET : East European & Russian
SP : Singapore

AM/LW IF ADJUSTMENT

Adjust for a maximum reading on level meter.

T2 455kHz

EXCEPT V7L

AM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L4 520kHz ( 520kHz) < 516kHz>

CT4 1,780kHz (1,680kHz) <1,630kHz>

( ) : V3/V7: AEP, UK, CET, SP,KR
< > : V7:Italian
[ ] : V7L

C844

C8

C

IC801

R851

C801

CFD-V3/V7/V7L

R

R816
R815
R814
R813

R812
R811

C810

R810

21

JW316

S351

-1 -2

320

JC310

JW317

JW318

AM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3 620kHz

CT3 1,400kHz

V7L

LW FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L4 145kHz

CT4, CV2 300kHz

LW TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

L3 160kHz

CT3, CV3 260kHz

FM IF ADJUSTMENT

Adjust for a maximum reading on level meter.

T1 10.7MHz

FM FREQUENCY COVERAGE ADJUSTMENT

Adjust for a maximum reading on level meter.

L2 86.5MHz ( 87.0MHz) < 87.35MHz> [ 87.0MHz]

CT2 109.5MHz (108.3MHz) <108.25MHz> [108.3MHz]

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 between TP (RF) and GND on CD
board.

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

3. Press the 7 button two times (LPC ON).

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/TV : 200mV
TIME/DIV : 500 nS

RF level

0.7 – 1.0 Vp-p (LPC ON)

1.0 – 1.4 Vp-p (LPC OFF

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

oscilloscope

(AC range)

L1 86.5MHz ( 87.0MHz) < 87.35MHz> [ 87.0MHz]

CT1 109.5MHz (108.3MHz) <108.25MHz> [108.3MHz]

Adjustment Location : Main board (See page 12)

CD SECTION

How to put the set into CD Test Mode

1. Set the function switch to power off.

2. Set the function switch to CD.

3. Set Test mode by momentarily shorting both of the IC801 51pin
to GND. (Shorting the terminals momentarily is sufficient).
The set is into CD test mode (88 is displayed).

4. Turn the power off to release test mode.

FM TRACKING ADJUSTMENT

Adjust for a maximum reading on level meter.

[CD BOARD] (Conductor side)

JW710

R701

R706

R709

R705

R703

R702

R710

R704

C736

703

R711

C705

(RF)

TP

TP (RF)

R708

C734

2

(GND)

C731

C704

JW726

IC701

J

C703

C743

C730

R729

C747

C744

11

CFD-V3/V7/V7L

Adjustment Location :

[MAIN BOARD]

(Component side)

L4 : AM/LW Frequency
Coverage Adjustment

L3: AM/LW Tracking Adjustment

T1 : FM IF Adjustment

T2 : AM/LW IF Adjustment

CV2 : LW Frequency Coverage Adjustment

(V7L)

L2 : FM Frequency Coverage Adjustment

L1 : FM Tracking Adjustment

CV3: LW Tracking Adjustment (V7L)

[MAIN BOARD]

(Conductor side)

CT1 : FM Tracking Adjustment

CT3 : AM/LW Tracking Adjustment

CT2 : FM Frequency
Coverage Adjustment

CT4: AM/LW Frequency
Coverage Adjustment

12

CFD-V3/V7/V7L

SECTION 6

DIAGRAMS

6-1. EXPLANATION OF IC TERMINALS

IC801 µPD789316GK-903 SIGNAL PROCESSOR, D/A CONVERTER, LCD DRIVE, SYSTEM CONTROL

Pin No. Pin name I/O Description

1 – 4 NC — Not used (open)

5 IC — Connect to ground.

6 XT1 I Connect to ground.

7 XT2 — Not used (open)

8 VDD — Power supply terminal (B+ 3.3 V)

9 VSS — Ground terminal

10 CL1 I Oscillator terminal (4 MHz)

11 CL2 — Oscillator terminal (4 MHz)

12 RESET I Reset signal input

13 NC — Not used (open)

14 SYNC–R — Not used (open)

15 CE O Chip enable signal output

16 C–RST O Reset signal output to the LC78645E (IC701)

17 CAPH — Charge pump capacitor terminal

18 CAPL — Charge pump capacitor terminal

19 – 21 VLC0 – 2 — Capacitor connect terminal

22 – 25 COM0 – 3 O LCD common drive output

26 – 43 S0 – 17 — Not used (open)

44 – 48 S18 – 22 O LCD segment drive output

49 S23 — Not used (open)

50 ENTER I Key (ENTER) input

51 MODE I Key (MODE) input
52 PLAY I Key (H PLAY) input

53 FR I Key (l FR) input
54 FF I Key (L FF) input
55 STOP I Key (s STOP) input

56 DOOR I Door open/close input

57 WRQ I Command signal input

58 TEST I Test mode signal terminal input (TEST: L)

59 MUTE O Mute signal output

60 FSEQ I Frame SYNC signal input

61 DRF I DRF (Defect RF) input

62 DO O Serial data output

63 DIN I Serial data input

64 CLK I Clock signal input

13

CFD-V3/V7/V7L

d

• Circuit Boards Location

VOLUME board

POWER board

PRE board

INLET board

BATT (R) board

BATT (L) board

FM SW boar

CONTROL board

MAIN board

CD board

14

6-2. BLOCK DIAGRAMS –TUNER/TC SECTION–

ANT1

TELESCOPIC ANTENNA

V7L

FM

CV3,CT3,L3

LW

TRACKING

CV2,L4,CT4

LW FREQUENCY

COVERAGE

EXCEPT V7L

TRACKING

AM FREQUENCY

COVERAGE

CT3,L3

L4,CT4

D1

AM

D2

FM FREQUENCY

FERRITE-ROD

CT1,L1

TRACKING

CT2,L2

COVERAGE

L3

AM/LW

ANTENNA

FM

L4
AM

OSC

L1
FM
RF

L2
FM

OSC

V7L

CV3

CV2

CT3

CT4

CT1

CT2

CV1-1

CV1-2

CV1-3

CV1-4

TU +6V

FM/AM

FRONT-END

IF AMP,DET,FM MPX

IC1

RF
IN

FRONT-END

FM RF OUT

FM OSC

AM RF
IN

FRONT-END

AM OSC

FM

AM

MIX
OUT

T2

AM IF

CF2

TU +6V

CF1

TU +6V

T1

FM IF

FM
IF IN

AM
IF IN

-11

-13

FM DET

AM DET

TU +6V

QUAD

DET OUT

V7L

CFD-V3/V7/V7L

Ver 1.2 2001.08

LPF1

L OUT

R OUT

TU +6V

R-CH

S1

EXCEPT V7L

FM MODE

MONO

STEREO

FM MODE

ISS

MONO

1

STEREO

2

V7L

MPX IN

Q2

MPX

LPF2

Q1

CD

SECTION

CD L-CH

CD R-CH

HRP901

RECORD/

PLAYBACK

HEAD

HE901
ERASE

HEAD

R-CH

TU IN L
CD IN L

PRE/REC

AMP

IC301

MUTE

L.LINE

22

L.RAD

24

MIC AMP

MIC

13

MUTE

PB AMP

L.IN

5

REC
AMP(26dB)

L.RO

4

DET

TAPE

PB AMP

ALC

1

S301

REC

PB

REG

6

BUFFER

REF

T301

-2

-1

21

TU +6V

REC

MONITOR

LOGIC

AMP

(7dB)

BIAS

OSC

Q301

L.LO

LINE

TAPE

20

17

15

V7L

ISS1
Q303

V7L

ISS

L.OUT

CD

TAPE

L.OUT

FM

CD

TAPE

MAIN

SECTION

MAIN

SECTION

• Signal path.

F : FM
f : AM
E : PLAY
a : REC
J : CD

• IC link button.

-11

Last digit : -11

-13

Last digit : -13

R-CH IS OMITTED:SAME AS L-CH

1515