SONY CL 17K10MJ, KV-1440UB Service Manual

HCD-CL1/CL3

SERVICE MANUAL

Ver 1.2 2002. 10

HCD-CL1/CL3 are the tuner, deck, CD and
amplifier section in CHC-CL1/CL3.

Photo : HCD-CL1

CD

SECTION

TAPE DECK

SECTION

Model Name Using Similar Mechanism HCD-DX50

CD Mechanism Type CDM63B

Base Unit Type BU-30BD60

Optical Pick-up Type A-MAX.3

Model Name Using Similar Mechanism HCD-CL5MD

Tape Transport Mechanism Type CMAL1Z215B

US Model

Australian Model

HCD-CL1

AEP Model

UK Model

E Model

HCD-CL1/CL3

SPECIFICATIONS

Amplifier section

For the U.S. model

AUDIO POWER SPECIFICATIONS

POWER OUTPUT AND TOTAL HARMONIC
DISTORTION:
With 6-ohm loads, both channels driven, from 120 –
10,000 Hz; rated 50 watts per channel minimum RMS
power, with no more than 10% total harmonic
distortion from 250 milli watts to rated output.

Total harmonic distortion: less than 0.1% (6 ohms at

AEP models
HCD-CL3:
DIN power output (Rated):80 + 80 watts

Continuous RMS power output (Reference):

Music power output (Reference):

HCD-CL1:
DIN power output (Rated):40 + 40 watts

Continuous RMS power output (Reference):

Music power output (Reference):

1 kHz, 25 W)

(6 ohms at 1 kHz, DIN)

100 + 100 watts
(6 ohms at 1 kHz, 10%
THD)

180 + 180 watts
(6 ohms at 1 kHz, 10%
THD)

(6 ohms at 1 kHz, DIN)

50 + 50 watts
(6 ohms at 1 kHz, 10%
THD)

95 + 95 watts
(6 ohms at 1 kHz, 10%
THD)

Other models
The following measured at AC 120/220/240 V, 50/
60 Hz
HCD-CL3:

DIN power output (Rated):80 + 80 watts

Continuous RMS power output (Reference):

HCD-CL1:
DIN power output (Rated):40 + 40 watts

Continuous RMS power output (Reference):

Inputs
MD IN (phono jacks): voltage 450 mV,

Outputs
CD DIGITAL OUT (Supported sampling
frequencies: 32 kHz, 44.1 kHz and 48 kHz)
PHONES (stereo minijack):

(6 ohms at 1 kHz, DIN)

100 + 100 watts
(6 ohms at 1 kHz, 10%
THD)

(6 ohms at 1 kHz, DIN)

50 + 50 watts
(6 ohms at 1 kHz, 10%
THD)

impedance 47 kilohms

accepts headphones of
8 ohms or more.

— Continued on next page —

COMPACT HiFi COMPONENT SYSTEM

9-873-852-13

2002J1600-1

© 2002.10

Sony Corporation

Home Audio Company

Published by Sony Engineering Corporation

HCD-CL1/CL3

CD player section

System Compact disc and digital
Laser Semiconductor laser

Frequency response 2 Hz – 20 kHz (±0.5 dB)

Tape deck section

Recording system 4-track 2-channel stereo
Frequency response 40 – 13,000 Hz (±3 dB),

Tuner section

FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range 87.5 – 108.0 MHz

Antenna FM lead antenna
Antenna terminals 75 ohms unbalanced
Intermediate frequency 10.7 MHz
AM tuner section
Tuning range
AEP models: 531 – 1,602 kHz

Other models: 531 – 1,602 kHz

Antenna AM loop antenna
Intermediate frequency 450 kHz

General

Power requirements
North American model: 120 V AC, 60 Hz
AEP models: 230 V AC, 50/60 Hz
Australian and New Zealand models:

Mexican model: 120 V AC, 60 Hz
Korean model: 220 V AC, 60 Hz
Other models: 120 V, 220 V, 230 –

Power consumption
U.S.A. model:
HCD-CL1: 100 watts
AEP models:
HCD-CL3: 165 watts
HCD-CL1: 100 watts
HCD-CL3/CL1: 0.5 watts (at the Power

Other models:
HCD-CL3: 165 watts
HCD-CL1: 100 watts
Dimensions (w/h/d) incl. projecting parts and controls

Mass
Amplifier/Tuner/Tape/CD section:
HCD-CL3: Approx. 8.0 kg
HCD-CL1: Approx. 7.7 kg

Design and specifications are subject to change
without notice.

audio system
(λ=780 nm)

Emission duration:
continuous

using Sony TYPE I
cassettes

(50 kHz step)

(with the interval set at
9 kHz)

(with the interval set at
9 kHz)
530 – 1,710 kHz
(with the interval set at
10 kHz)

External antenna terminals

230 – 240 V AC, 50/
60 Hz

240 V AC, 50/60 Hz
Adjustable with voltage
selector

Saving Mode)

Approx. 215 × 285 ×
421 mm

SAFETY CHECK-OUT

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 A C 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. Follo w 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 A C voltmeter . The “limit” indication
is 0.75 V, so analog meters must have an accurate low-v olta ge
scale. The Simpson 250 and Sanwa SH-63Trd are e xamples 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)

2

TABLE OF CONTENTS

HCD-CL1/CL3

1. SERVICING NOTES ······················································· 4

2. GENERAL ·········································································· 5

3. DISASSEMBLY

3-1. Top Panel, Side Panel ···················································· 7
3-2. Cassette Mechanism ······················································ 8
3-3. Front Panel ···································································· 8
3-4. Panel Board ··································································· 9
3-5. Back Panel, Main Board················································ 9
3-6. Amp Board, Power Transformer ································· 10
3-7. CD Mechanism ···························································· 10
3-8. CD Base Unit (BU-30BD60) ······································ 11
3-9. Driver Board ································································ 12
3-10.Fitting Base (Stabilizer) Assy, Tray Assy, ··················· 12
3-11.Tray Sensor Board ······················································· 13
3-12.Slider (Loading), Gear (Slider) ··································· 13
3-13.Stocker Assy, Tray (Sub) ············································· 14
3-14.Disc Sensor Board ······················································· 14
3-15.IN OUT SW Board ······················································ 15
3-16.Motor Assy (M721), Motor Board ······························ 15

4. TEST MODE ···································································· 16

5. MECHANICAL ADJUSTMENTS ····························· 17

6. ELECTRICAL ADJUSTMENTS ·······························17

7. DIAGRAMS

7-1. Circuit Boards Location ·············································· 21
7-2. Block Diagrams CD Section ······································· 22

Syscon Section ···························································· 23
Main Section ······························································· 24

7-3. Printed Wiring Board Main Section ··························· 25
7-4. Schematic Diagram Main Section (1/2) ····················· 26
7-5. Schematic Diagram Main Section (2/2) ····················· 27
7-6. Schematic Diagram BD Section ································· 28
7-7. Printed Wiring Board BD Section ······························ 29
7-8. Schematic Diagram Driver Section ···························· 30
7-9. Printed Wiring Board Driver Section ························· 31
7-10.Schematic Diagram TC Section ································· 32
7-11.Printed Wiring Board TC Section······························· 33
7-12.Schematic Diagram AMP Section ······························34
7-13.Printed Wiring Board AMP Section ··························· 35
7-14.Schematic Diagram Panel Section ····························· 36
7-15.Printed Wiring Board Panel Section··························· 37
7-16.Schematic Diagram Trans Section ····························· 38
7-17.Printed Wiring Board Trans Section ··························· 39
7-18.Schematic Diagram Power Section ···························· 40
7-19.Printed Wiring Board Power Section ························· 41
7-20.IC Pin Function Description ········································ 42
7-21.IC Block Diagrams ······················································ 44

8. EXPLODED VIEWS

8-1. Side Panel, Back Panel Section ···································46
8-2. Front Panel Section ····················································· 48
8-3. Chassis Section ···························································· 49
8-4. CD Mechanism Deck Section-1 ·································· 50
8-5. CD Mechanism Deck Section-2 ·································· 51
8-6. Base Unit Section (BU-30BD60) ································ 52

9. ELECTRICAL PARTS LIST ······································· 53

3

HCD-CL1/CL3

SECTION 1

SERVICING NOTES

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

Laser component in this product is capable
of emitting radiation exceeding the limit for
Class 1.

This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT MARKING is located on the rear
exterior.

MODEL IDENTIFICATION
– Back Panel –

Model

US, Mexican models

AEP, UK models
Australian model

E, Taiwan models

Korea model

Power Voltage
Indicator

Power Voltage

Incdication

AC: 120 V 60 Hz

AC: 230 V 50/60 Hz

AC: 230 – 240V 50/60 Hz

AC: 110, 220/

230 – 240 V 50/60 Hz

AC: 220 V 60 Hz

This caution
label is
located inside
the unit.

CAUTION

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

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.

Flexible Circuit Board Repairing

• Keep the temperature of 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.

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.

4

wf

6
7
8
9

5

qf
qg

qh

0

qd

qa
qs

ql
qk

qj

w;

1234

wa

ws

wd

wh

wg

wf

CHECK 8 (11)
CLEAR qs (11)
CLOCK/TIMER SELECT 2

(20, 23)

CLOCK/TIMER SET 3

(8, 19, 22)
DBFB wh (20)
DIMMER wd (7)
DISC SKIP 9 (10, 12)
DISPLAY qk (8, 12)
ENTER/YES qa (8, 13, 14, 19,

22)
FUNCTION qg (9, 17, 18)
GROOVE qh (20)
MENU/NO wa (14)
MUSIC MENU 6 (21)

NAME EDIT/CHARACTER ws

(12, 16)
REPEAT 7 (10)
SCROLL wg (13)
SLEEP 1 (22)
SURROUND 5 (20)
TUNER/BAND wf (14, 15)
VOL +/– qj

BUTTON DESCRIPTIONS

@/1 4
N q;
x q;
X q;
M qd
> qf
. ql
m w;

wd
ws
wa
w;
ql
qk
qj

qh
qg

1234

SECTION 2

GENERAL

5

6
7

8
9

HCD-CL1/CL3

This section is extracted
from instruction manual.

BASS/TREBLE ws (21)
CD 1 – 3 qd (11)
CD 1 – 3 Z qd (9)
CD disc tray qf (9)
CD SYNC ql (18)
CD NX 8 (9)
DBFB wa (20)
DIMMER qg (7)
DISPLAY wd (8, 12)
Display window 3
EDIT w; (18)
FUNCTION qs (9, 17, 18 )
GROOVE qj (20)
MD 0 (24)
MUSIC MENU ws (21)

BUTTON DESCRIPTIONS

?/1 1
./> 4
x 6
m/M ws

+/– ws

PHONES jack 9
PLAY MODE/DIRECTION qk

(9, 17, 18)
REC PAUSE/START ql (18, 19)
Remote sensor wf
REPEAT qh (10)
STEREO/MONO qh (15)
Tape deck lid 2 (17)
TAPE nN qa (17, 18)
TUNER/BAND 7 (14, 15)
VOLUME 5

0qaqsqdqf

5

HCD-CL1/CL3

Setting the time

1

Turn on the system.

2

Press CLOCK/TIMER SET on the
remote.

Proceed to step 5 when you set the clock for
the first time.

3

Turn ./> (or press . or > on
the remote) to select “CLOCK SET?”.

4

Press ENTER/YES.

5

Turn ./> (or press . or > on
the remote) to set the hour.

6

Press M (or ENTER/YES on the
remote).

The minute indication flashes.

7

Turn ./> (or press . or > on
the remote) to set the minute.

8

Press ENTER/YES on the remote.

The clock starts working.

If you made a mistake

Press m or M repeatedly until the incorrect
item flashes, then set it again.

To change the preset time

Start over from step 1.

Saving the power in
standby mode

Press DISPLAY repeatedly when the
system is off. Each time you press the
button, the system switches cyclically as
follows:

Demonstration t Clock display t Power
Saving Mode

To cancel the Power Saving Mode

Press DISPLAY once to show the
demonstration, twice to show the clock display.

Tip

?/1 indicator lights up even in the Power Saving
Mode.

6

SECTION 3

DISASSEMBLY

• The equipment can be removed using the following procedure.

Set

Top panel, Side panel

HCD-CL1/CL3

Cassette mechanism Front panel

Panel board

Back panel, Main board

Amp board,
Power transformer

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

3-1. TOP PANEL, SIDE PANEL

Note: Attach it so that it pressed down

the Main board.

q;

qs

Side panel (L)
(Remove in the direction
of the arrow)

qa

Four screws

(

CASE 3 TP2)

qd

Two screws

HEXAGON

(
SOCKET TAPPING

)

Screw

+BVTT 3 × 8

(

)

qg

Connector
(CN305)

CD mechanism

CD base unit (BU-30BD60)

6

D.C. Fan

3

Connector

(CN904)

Driver board

Fitting base (stabilizer) assy,
Tray assy

Tray sensor board

Slider (loading), Gear (slider)

Stocker assy

Disc sensor board

IN OUT SW board

Motor assy (M721), Motor board

qh

Top panel
(Remove in the direction
of the arrow)

qf

Flat cable (9 core)
(CN304)

1

Screw

(

+BVTT 3 × 8

5

Two screws

(

+BVTP 3 × 8

2

Two screws

+BVTP 3 × 8

(

4 Heat sink, cover

7

Screw

+BVTT 3 × 8

(

)

)

)

)

9

Side panel (R)
(Remove in the direction
of the arrow)

8

Four screws

CASE 3 TP2)

(

7

HCD-CL1/CL3

k

3-2. CASSETTE MECHANISM

4

Two screws

+BVTP 3 × 8

(

5

TC board

)

7

Flat cable (9 core)

8

Cassette mechanism dec

3

Bracket

(Cassette mechanism)

2 S
(

3-3. FRONT PANEL

1

Connector

crew

+BVTP 2.6 × 8

)

2 Three s

+BVTP 2.6 × 8

(

6

Front panel

6

Two screws

+BVTP 2.6 × 8

(

crews

6

Screw

+BVTP 2.6 × 8

)

)

1

Screw

(

+BVTP 3 × 8

)

(

)

4

Two screws

(

HEXAGON

SOCKET TAPPING

3

(

)

Screw

+BVTP 3 × 8

2

5

Connector
(CN701)

)

Screw

(

+BVTP 3 × 8

)

8

3-4. PANEL BOARD

2

Nut

5

Panel board

6

Two screws

(+BVTP 2.6

×

4

(

8)

Six screws

+BVTP 2.6 × 8

7

Ring SW board

)

3
(

Four screws

+BVTP 2.6 × 8

)

4

Eight screws

+BVTP 2.6 × 8

(

HCD-CL1/CL3

)

1

Knob (vol)

3-5. BACK PANEL, MAIN BOARD

8

(CN943)

9

Connector

(CN942)

0

Connector

Main board

(CN941)

qs

5

Connector

Vol sel board

Back panel

qa

Two screws

(

+BVTP 3 × 8

)

3

Screw

(

+BVTP 3 × 8

6
(

2

Connector

(CN803)

1

Flat cable (15 core)
(CN502)

4 Thirteen
(

+BVTP 3 × 8

Two screws

+BVTP 3 × 8

)

7

Tuner

screws

)

)

qj

Connector
(CN201)

qg

Connector
(CN501)

qf

Connector
(CN701)

qk

Main board

qh

Two connector
(CN101, CN251)

qd

Two screws

(

+BVTP 3 × 8

)

9

HCD-CL1/CL3

3-6. AMP BOARD, POWER TRANSFORMER

3

Four screws

(+BVTP 4

4

Power

transformer

2

Connector
(CN902)

×

8)

6

Three screws

(

+BVTP 3 × 8

1

Connector

(CN901)

5

Two screws

(

+BVTP 3 × 16

)

)

8

(+BVTP 3

Two screws

7

Amp board

×

9

8)

q;

Two screws

(

+BVTP 3 × 8

Heat sink

qs

Cord bushing

)

3-7. CD MECHANISM

5

CD mechanism deck

(CDM63B)

qa

Sub power board

3 Chassis assy

4

(

10

2

Two screws

(

+BVTP 3 × 8)

Four screws

+BVTP 3 × 8

1

Three screws

(

+BVTP 3 × 8

)

Note: When installing the CD mechanism, the four bosses

must be aligned with the specified positions.

)

3-8. CD BASE UNIT (BU-30BD60)

)

HCD-CL1/CL3

0

CD base unit

(BU-30BD60)

8

Two insulators

6

Two stoppers

5

Two screws (+BVTP 2.6

4

BD board

1

Rivet

×

9

Two insulators

7 Two

screws (+PTPWH M2.6

8)

3

Flat type wire (16 core)

2

Flat type wire (21 core)

11

HCD-CL1/CL3

3-9. DRIVER BOARD

3 DRIVER board

1 Connector (CN703)

1 Connector (CN704)

1 Connector (CN702)

2 Screw (BTTP M2.6)

2 Screw (BTTP M2.6)

1 Connector (CN705)

3-10. FITTING BASE (STABILIZER) ASSY, TRAY ASSY

1 Two screws (BTTP M2.6)

2

5 Tray assy

4 Fitting base (STABILIZER) assy

2

1 Two screws (+BTTP M2.6)

12

3 Three bosses

3 Three bosses

3-11. TRAY SENSOR BOARD

1 Rotate the cam,
and lift up the stocker
at the full.

HCD-CL1/CL3

6 HOLDER (SENSOR)

2 Two screws (+BTTP M2.6)

5 TRAY SENSOR board

Cam

4 Two screws (+BTTP M2.6)

3-12. SLIDER (LOADING), GEAR (SLIDER)

3 Two screws (+BTTP M2.6)

4 Bracket (retainer)

Stocker

3

6 Slider (LOADING)

5 Floating screw

2 Bracket (retainer)

1 Two screws (+BTTP M2.6)

8 Two gears (SLIDER)

7 Two floating screw

13

HCD-CL1/CL3

3-13. STOCKER ASSY, TRAY (SUB)

1 Screw (+BTTP M2.6)

3 Stoscker assy

A

2 Slide the slider (BU.L),

slider (BU.R) in the direction of

arrow A at the full.

3-14. DISC SENSOR BOARD

2 CD base unit assy

4 DISC SENSOR board

A

1 Screw (+BTTP M2.6)

1

14

3 Two screws (+BTTP M2.6)

3-15. IN OUT SW BOARD

HCD-CL1/CL3

2 Two screws (+BTTP M2.6)

3 IN OUT SW board

1 Connector (CN704)

3-16. MOTOR ASSY (M721), MOTOR BOARD

7 Motor assy (M721)

1 Belt

2 Connector (CN702)

6

Motor board bottom view

4 Two screws (+BTTP M2.6)

3 Remove two solders.

5 Motor board

15

HCD-CL1/CL3

SECTION 4

TEST MODE

[CD Ship Mode]

• This mode moves the optical pick-up to the position durable to
vibration. Use this mode when returning the set to the customer
after repair.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Press CD 1 button and FUNCTION button simultaneously.

3. After the “STANDBY” display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.

[GC Test Mode]

• This mode is used to check the software version, FL tube, LED,
keyboard and VACS.

Procedure:

1. Press three buttons x , DISPLAY , and CD 2 simultaneously.

2. LEDs and fluorescent indicator tube are all turned on.

3. When you want to enter the software version display mode,

press CD 1 . The model number and destination are displayed.

4. Each time CD 1 is pressed, the display changes starting from

MC version, GC version, CD version, CDD version, CDM ver­sion, BD version, ST version, TA version, TM version, TC ver­sion and MD version in this order.

5. Press CD 2 button, and the key check mode is activated.

6. In the key check mode, the fluorescent indicator tube displays

“K 0 J 0 V 0”. Each time a button is pressed, “K 0” value
increases. However, once a button is pressed, it is no longer
taken into account.
“V 0” value increases like 1, 2, 3 ... if rotating VOLUME knob
in “+” direction, or it decreases like 0, 9, 8 ... if rotating in
“–” direction.

7. Also when CD 3 is pressed after lighting of all LEDs and FL

tubes, value of VACS appears.

8. To exit from this mode, press three buttons in the same manner

as step 1, or disconnect the power cord.

[MC Test Mode]

• This mode is used to check operations of the respective sections

of Amplifier, Tuner, CD and Tape.

Procedure:

1. Press the ?/1 button to turn on the set.

2. Press the three buttons of x , DISPLAY and CD 3 simulta-

neously.

3. The “VOLUME” segment flashes.

4. Every pressing of BASS/TREBLE f changes the displays in

the order of

“GEQ MIN”t“GEQ FLAT”t“GEQ MAX”

5. When the VOLUME control knob is turned clockwise even

slightly, the sound volume increases to its maximum and a mes­sage “VOLUME MAX” appears for two seconds, then the dis­play returns to the original display.

6. When the VOLUME control knob is turned counter-clockwise

even slightly, the sound volume decreases to its minimum and a
message “VOLUME MIN” appears for two seconds, then the
display returns to the original display.

7. In the test mode, the default-preset channel is called even when

the TUNER is selected and an attempt is made to call the preset
channel that has been stored in memory, by operating the Shuttle
knob. (It means that the memory is cleared.)

8. When a tape is inserted in Deck and recording is started, the

input source function selects MD automatically.

9. When x button is pressed to stop recording, the Tape (Deck) is
selected and tape is rewound using the m button, tape is re­wound, tape is stops at around the record-starting position and
playback of the recorded portion of the tape is started. If PAUSE
is inserted even once during recording, tape is rewound to the
position around the PAUSE position and is played back.

10.The cold reset is enforced at the same time.

[CD Service Mode]

• This mode can run the CD sled motor freely. Use this mode, for

instance, when cleaning the optical pick-up.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Select the function “CD”.

3. Press three buttons x , FUNCTION , and CD 2 simultaneously.

4. The CD service mode is selected.

5. With the CD in stop status, turn the shuttle knob clockwise to

move the optical pick-up to outside track, or turn the shuttle
knob counter-clockwise to inside track.

6. To exit from this mode, perform as follows:

1) Move the optical pick-up to the most inside track.

2) Press three buttons in the same manner as step 2.

Note: • Always move the optical pick-up to most inside track when exit-

ing from this mode. Otherwise, a disc will not be unloaded.

• Do not run the sled motor excessively, otherwise the gear can be
chipped.

[CD Ship (Memory Clear) Mode]

• Set the CD ship mode and set the default setup when shipped
from the factory at the next AC power on.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Select the function “CD ”.

3. Press three buttons x , FUNCTION and CD 1 simulta-

neously.

4. After the “STANDBY” display blinks six times, a message

“LOCK” is displayed on the fluorescent indicator tube, and the
CD ship mode is set.

[CD/TAPE Repeat 5 Times Limit Release Mode]

• 5 times limit of repeating CD/TAPE is released.

Procedure:

1. Press ?/1 button to turn the set ON.

2. Press three buttons x , FUNCTION and CD 1Z .

3. 5 times limit of repeating CD/TAPE is released.

4. Cold reset is performed at power off.

16

SECTION 5

MECHANICAL ADJUSTMENTS

HCD-CL1/CL3

SECTION 6

ELECTRICAL ADJUSTMENTS

Precaution

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

record/playback heads pinch rollers
erase head rubber belts
capstan idlers

2. Demagnetize the record/playback head with a head demagne­tizer.

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

FWD

FWD
back tension

REV

REV
back tension

FF/REW

FWD tension

REV tension

Torque meter Meter reading

3.04 – 6.96 N • m

CQ-102C

CQ-102C

CQ-102RC

CQ-102RC

CQ-201B

CQ-403A

CQ-403R

(31 to 71 g • cm)

(0.43 – 0.98 oz • inch)

0.20 – 0.58 N • m
(2 to 6 g • cm)

(0.02 – 0.08 oz • inch)

3.04 – 6.96 N • m

(31 to 71 g • cm)

(0.43 – 0.98 oz • inch)

0.20 – 0.58 N • m
(2 to 6 g • cm)

(0.02 – 0.08 oz • inch)

6.97 – 14.02 N • m
(71 to 143 g • cm)

(0.98 – 1.99 oz • inch)

0.98 N • m or more

(100 g or more)

(3.53 oz or more)

0.98 N • m or more

(100 g or more)

(3.53 oz or more)

DECK SECTION 0 dB=0.775V

1. Demagnetize the record/playback head with a head demagnetizer.

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

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

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

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

6. The adjustments should be performed for both L-CH and R-CH.

7. Switches and controls should be set as follows unless otherwise
specified.

Signal Used forTape

P-4-A100

WS-48B

Record/Playback Head Azimuth Adjustment

Procedure:

1. Mode : Playback

test tape
P-4-A100
(10kHz, –10dB)

10 kHz, –10 dB

3 kHz, 0 dB

main board
CN301
Pin 1 (L-ch)
Pin 3 (R-ch)

set

Azimuth Adjustment

Tape Speed Adjustment

level meter

+
–

2. Turn the adjustment screw and check output peaks. If the peaks
do not match for L-CH and R-CH, turn the adjustment screw
that outputs match within 1 dB of peak.

L-CH
peak

screw
position

R-CH
peak

output
level

within
1 dB

L-CH
peak

R-CH
peak

within 1dB

screw
position

so

17

HCD-CL1/CL3

e

3. Mode: Playback

test tape
P-4-A100
(10kHz, –10dB)

set

in phase 45°

main board
CN301
Pin 1 (L-ch)

Pin 2 (GND)

L

R

Pin 3 (R-ch)

Waveform of oscilloscope

90°

good

135°

oscilloscope

180°

wrong

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

Adjustment Location: Record/Playback/Erase Head

Tape Speed Check

Record Bias Adjustment

Procedure:

INTRODUCTION

When set to the test mode performed in Tape Speed Adjust­ment, when the tape is rewound after recording, the “REC memory

mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this ad-
justment. During recording, the input signal FUNCTION will auto­matically switch to VIDEO.
(After recording, press the m button without stopping will re­turn to the position where recording was started.)

1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)

2. Insert a tape into deck, press the TAPE REC PAUSE/START
button, and then press the Y button to start recording.

3. Mode: Record

VIDEO (AUDIO) IN

1) 315 Hz

2) 10 kHz

AF OSC

attenuator

600 Ω

} 50 mV (–23.8 dB)

blank tap
CS-123

set

Note: Set the test mode using the following method and begin tape

speed adjustment.

Procedure:

With the power turned ON, press the x button, ENTER/YES
button, and DISC 3 button simultaneously.
(The “VOLUME” on the fluorescent display tube will blink while
in the test mode.)
To exit the test mode, press the "/1 button.

1. Insert the WS-48B into deck.

2. Press the Y button of deck.

3. Check the reading of frequency counter becomes 3000 ± 15 Hz.

Sample Value of Wow and flutter

W.RMS (JIS) less than 0.3%
(test tape: WS-48B)

4. Mode: Playback

recorded
position

set

main board
CN301
Pin 3 (L-ch)
Pin 1 (R-ch)

level meter

5. Confirm playback the signal recorded in step 2 become adjust­ment level as follows.
If these levels do not adjustment lev el, adjust the R V304 (L-CH)
and RV354 (R-CH) on the TC board to repeat steps 3 and 4.

Adjustment level: The playback output of 10 kHz le vel dif ference

against 315 Hz reference should be 0 ± 0.5 dB.

Adjustment Location:

[TC BOARD]

18

RV304

RV304(Lch),RV354(Rch)
Record Bias

RV354

HCD-CL1/CL3

e

TP(RFAC)

BD (CD) board

oscilloscope

TP(DVC)

Record Level Adjustment

Procedure:

INTRODUCTION

When set to the test mode performed in Tape Speed Adjust­ment, when the tape is rewound after recording, the “REC memory

mode” which rewinds only the recorded portion and playback is
set.
This “REC memory mode” is convenient for performing this
adjustment. During recording, the input signal FUNCTION will au­tomatically switch to VIDEO.
(After recording, press the m button without stopping will re­turn to the position where recording was started.)

1. Press FUNCTION button to select VIDEO. (This step is not
necessary if the above test mode has already been set.)

2. Insert a tape into deck, press the TAPE REC PAUSE/START
button, and then press the Y button to start recording.

3. Mode: Record

VIDEO (AUDIO) IN (J101)
315Hz 50 mV (–23.8 dB)

AF OSC

600 Ω

attenuator

set

blank tap
CS-123

CD SECTION

Note :

1. CD Block is basically designed to operate without adjustment.
Therefore, check each item in order given.

2. Use LUV-P01 (4-999-032-01) unless otherwise indicated.

3. Use an oscilloscope with more than 10MΩ impedance.

4. Clean the object lens by an applicator with neutral detergent
when the signal level is low than specified value with the fol­lowing checks.

S-Curve Check

Oscilloscope

BD (CD) board

TP(FEO)
TP(DVC)

Procedure :

1. Connect an oscilloscope to TP (FEO).

2. Connect between TP (FEI) and TP (DVC) ( 1.65 V) by lead
wire.

3. Turn Power switch on.

4. Load a disc (LUV -P01) and actuate the focus search. (In conse­quence of open and close the disc tray, actuate the focus search)

5. Confirm that the oscilloscope waveform (S-curve) is symmetri­cal between A and B. And conf irm peak to peak level within 2 ±

0.5 Vp-p.

4. Mode: Playback

recorded
position

set

main board
CN301
Pin 3 (L-ch)
Pin 1 (R-ch)

level meter

5. Confirm playback the signal recorded in step 2 become adjust­ment level as follows.
If these levels do not adjustment le vel, adjust the R V301 (L-CH)
and R V351 (R-CH) on the MAIN board to repeat steps 3 and 4.

Adjustment level:

CN301 playback level: 47.2 to 53.0 mV (–24.3 to –23.3 dB)

Adjustment Location:

[MAIN BOARD]

IC301

CN301

Record Level (R ch)

RV351

RV301

Record Level (L ch)

S-curve waveform

symmetry

A

within 2 ±0.5Vp-p

B

6. After check, remove the lead wire connected in step 2.

Note : • Try to measure several times to make sure than the ratio

of A : B or B : A is more than 10 : 7.

• Take sweep time as long as possible and light up the
brightness to obtain best waveform.

RF Level Check

Procedure :

1. Connect an oscilloscope CH1 to TP (RFDC) and CH2 to TP
(RFAC).

2. Turn Power switch on.

3. Load a disc (LUV-P01) and playback.

4. Confirm that oscilloscope waveform is clear and check if RF
signal level is correct or not.

19

HCD-CL1/CL3

e

)

Note : Clear RF signal waveform means that the shape “ ◊ ” can be clearly

distinguished at the center of the waveform.

RF signal waveform

VOLT/DIV : 200mV
TIME/DIV : 500ns

level : 0.65 ±0.15Vp-p (RFDC)

1.1 ±0.4Vp-p (RFAC)

E-F Balance (1 Track jump) Check

oscilloscop

BD (CD) board

TP(TEO)
TP(DVC)

Procedure :

1. Connect an oscilloscope to TP (TEO) and TP (DVC).

2. Turn Power switch on.

3. Load a disc (LUV-P01) and playback the number nine track.

4. Press the gG button. (Becomes the 1 track jump mode.)

5. Confirm that the level B and A (DC voltage) on the oscillo­scope waveform.

Adjustment Location:

[BD (CD) BOARD] (Conductor Side)

TP (DVC)

TP

15

IC103

16

1

30

TP

(RFDC)

40
41

IC101

60

2021

80

61

(RFAC)

TP

(FEI)

RV101

TP (FEO)
TP (TEO)

1

1 track jump waveform

DVC

level=1.0 ±0.5Vp-p

B

symmetry

center of
waveform

A (DC voltage

6. Adjust RV101 on the BD board so that the center of waveform
becomes the same voltage of DVC. (i.e. A=0V)

20