Denon Nippon DN-600F Service Manual

DENON

SERVICE MANUAL

MODEL DN-6OOF

STEREO CD PLAYER

-- TABLE OF CONTENTS --

SPECIFICATIONS ............................................................................ 2

NOTE FOR HANDLING OF LASER PICK-UP ..................................................... 3, 4

DISASSEMBLY .............................................................................. 5

ADJUSTMEN-[ .............................................................................. 6-- 9

HFAT RUN MODE FUNCTION ................................................................. 10

IC TERMINAL FUNCTION ................................................................... 11 - 14

NOTE FOR PARTS LIST ....................................................................... 14

PARTS LIST OF RW.BOARD .................................................................... 15

PACKING & ACCESSORIES ..................................................................... 16

PARTS LIST OF PACKING & ACCESSORIES ....................................................... t6

PARTS LIST OF EXPLODED VIEW ............................................................... 16

EXPLODED VIEW ............................................................................ 17

PARTS LIST C,F FG-70 MECHANISM UNIT ......................................................... 18

EXPLODED VIEW OF FG-70 MECHANISM UNIT .................................................... 18

P.W.BOARD .................................................................................. 19

WIRING DIAGRAM ............................................................................ 20

SCHEMATIC OIAGRAM ........................................................................ 21

SEMICONDUCTORS .......................................................................... 22

NIPPON COI_MBIA CO.. LTD.

III DN-6OOF

SPECIFICATIONS

- -AUDIO ....

No.of.Chan_ neJs::.io_.._. ' _2channels-
Frequency Respon'_e: 2 - 20,000 Hz. .

--Dynamic Range: _ _ --98 dB "
Signa!rto-noise Ratio:- 107 dB:"
Harmonic Distortion 0.003 % (,1kHz) _

" SeparatiOn: ......... 103 dB (1 kHz)

Wow & Flutter: Below measurable limit:

(_+0.001% W.peak)

Output Voltage: 2 V

FUNCTIONS AND DISPLAY

Functions: Automatic search, progra.mmed

playback, repeat playback,
manual search, auto space,

time mode, auto edit.

Display: Track number, time, music caTendar,

emphasis feature and engaged
modes.

Others: Headphones jack

DISCS Compact Disc format

SUPPLIED ACCESSORIES Pin-plug connection cord

GENERAL CHARACTERISTICS

Power Supply: Voltage is shown on rating label
Power ConsumptionS-- _10W
Dimensions: 482 (19") W × 88 (3-15/32") H ×

-280 (11-1/32") Dmm

Weight: 4.2 kg

* Design and specifications are subject to change without notice in the course of product improvement.

NOTE FOR HANDLING OF LASER PICK-UP

Caution for Handling the Laser Pick-up

The laser pick-up KSS-240A is assembled and precisely adjusted

using a sophisticated manufacturing process in our plant• Do not
disassemble or attempt to-readjust it. Please keep the following

instructions carefully in handling pick-up.

4. Metal Bearing

As the metal bearing of Cu-compound sintered alloy is impregnated
with FROIL946P (*Part No. 529 0054 007), never fail to supply the
bushing with the same lubricant at the time of replacing the pick-up.

1. Handle with Care

(1) Storage

Do not store the pick-up in dusty, high-temperatured or high-hu-

midity environments.

(2) Please take care for preventing from shock by falling down or

careless handling.

2. Laser Diode (LD)
(1) Protect your eyes

The laser beam may_lamage the human eye, since the intensity

of the focuseds:l_ot'm_i reach 7 x 103 W/cr_ 2even ifthe intensity
at the objective lens is 400 ,_W maximum. As the light beam
spreads alter focused through the objective lens, it does not effect
you in the place as far as more than 30 cms. However, do not
look at the laser light beam either through the objective Iens
directly nor another lens or a mirror.

(2) Poison of As

Since the LD chip contains As (Arsenic), as GaAs + GaAIAs, as
known as the poison, although the poison is relatively weak, in
comparing with others, e.g.As203, AsCI3 etc., and the amount is
small, avoid putting the chip in acid or an alkali solution, heating
it over 200°C or puttinc it into your mouth.

" (3) Avoid surge current or electrostatic discharge

The LD may be damaged or deteriorated by its own strong light

it a large current is supplied to it, even if only a short pulse.
Make sure that there is no surge current in the LD driving circuit
by switches or else. Be careful to handle pick-up as it may be
damaged in a moment by human electrostatic discharge. The
pins of the LD are short-circuited by solder for protection during
shipment.

For safety handling of an LD, grounding the human body, meas-

uring equipments and jig is strongly recommended. And still it is
further desirable to make use of mat on the platform and floor for

handling the LD.
To open the short-circuit, remove the soldering quickly with a
soldering iror_whose metal part is grounded.
The temperature of the; soldering iron should be less than 320°C

(30W).

5. Handling

Please handle the laser pick-up with holding the side base (rosin
molded part).
When either a part of human body or some other things may happen
to touch directly with the circuit part of F:W.Board, it may cause
deterioration, take careful attention in handling this base.

6. Deterioration
As KSS-240 comprises built-in RF Amp and APC curcuit, it resists
stronger against external electrostatJc damages than the former
typed pickup. However, there is possibility of pickup deterioration in
the following cases.

(1) Low HF level, or with great numbers of jitters.
(2) Tracking offset (EF Balance) is out of order (Refer to "Confirma-

tion Method of Adjustment" far cortirmation on (1) and (2)).

3. Actuator
(1) The performance of the actuator may be effected if magnetic

material is located nearby, since the actuator has a strong mag-
netic circuit. Do not permit dust to enter through the clearance of
the cover.

(2) Cleaning the lens

It may change.the specifications by attaching dust or ash on the
objective lens. Clean the lens with a cleaning paper dampened
with a little water, not pressing lens with so much strength by the
cleaning paper.

NOTE FOR HANDLING OF LASER PICK-UP

DESCRIPTION OF THE COMPONENTS

+X-axis direction

+Z-axis direction

Object lens

\

OP Slide base

\

Slide rack

Z-axis

A Y-axis

(Tangential direction)

X-axis

(Radial direction)

Double axes cover

/

LO2 Flexible board

Label

//

+Y-axis direction

Flexible fiat cable
connecter

-LABEL

KSS240A

(D O O () O Lot No.

C_) O (_) O lop

year

(last figure)

day month I quality con[rol XIo.

O O 0 0 C'

but Oct. Nov. and Dec. are expressed ay alphabetical letters of

X, YandZ.

quality control /_

I 0 I 101

() _" C,

LD drive current

PIN CONNECTOR

The expressed unit is by mA, with omission ol the

decimal point as for example, 56 5mA will be expressed
as 565, but the head of English letter means tile ccntrol
in the manufacturning plant.

o

If t T t _ _ +

1357911

2 4 681012

Pin

No. Description

1 VC (+2.5V}

2 TE (TRK ER signal)
3 FE (FCS ER signal)
4 ! FZC (FZC signal)

5 RF (RF signal)
6 GND

I

InPut'/ l

Output i

OUT
OUT
QUT
OUT

OUT

! iN

Pin

No.

7 Vc

8 LC

9 FC

10 TF

11 TIq

12 FC

Input/

Description ! Output

l-- vi

(LD C.ontral) IN

(Doable axes) IN

(DoJble axes) IN
(Double axes)
(Double axes) IN

_, lexible flat cable

connector

I I_llV-ldLlUl- I

IDISASSEMBLY

,DTOP COVER

Remove 4 screws from both sides and 1 screw from Back Panel.

Screw

Top Cover

t

Screw

• FRONT PANEL

1. Pull Loader frame frontward, and remove loader panel.

2. Remove 2 front panel upper screws.

3. Undo 2 front panel 5pper hooks.

4. Pull front panel and undo 3 lower hooks.

Loader Panel

Screw

Screw

• MECHANISM UNIT

Remove 4 screws.

• CLAMPER

Remove 2 screws.
Pull cJamper and undo 4 hooks.

Clamper

Mechanism Unit

Few

Front Panel

5

I ON-6OOF

,ADJUSTMENT

k,licrocomputer built in the unit, comprises service program to facilitate servo adjustment by pushing operation button.

1. Start service-program

(1) Turn power s_tch OFF. -
(2) Shortcircuit pin (_ [SWCL) and (_ pin (SWOP) of connector (TP102) on RW.B. (Main Unit)

(Caution) Do not touch other pins.

(3) Turn power switch ON.

(Service program starts, and displays track number D _)

(Caution)
o'When service program started normal operation of buttons will be defeated.

21.Service program function

_A

Button .... ..,

OPEN/CLOSE: [

Function

Opens or closes the disc holder.

I

• STOP Stops system function.

_" PLAY Starts focusservo and disc turns.

Hi PAUSE Starts focus servo, tracking servo,

slide servo, spindle servo.

Other button No normal operation.

Description

• Opens or closes only when disc is stopped.

• Operate other keys after open or close.

• Displays track number _j _.

• Rush when adjustment completed, or do it ag_.in.

• Push when adjust tracking offset.

rl-i

• When completed, displays track rumber LI C

• When PAUSE button is pushed, starts tracking se_vo and slide servo.

n-t

• When completed, track number U-'#.

• Do not operate buttons other than above.

• If misoperated, immediately turn power switch OFF--.

(Caution)

• Do not use remote control during service program mode.

3. Adjustment

(1) Location

MAIN UNIT

!

POWER_

TRANS

VR102

@

VR104

@

TP101 TP102

SD

FRONT PANEL

TP10I ]-P102

L_ TEl _ -5V
_, VC _, NC

_, FOK _ SWOP

,_, TEO _ SWCL

._, FEI _ GND

_, FEO _ HF

ii_P i _il. L.--JLj LJ it- mmmm

:2) Necessary equipment for adjustment

1. Dual tracie oscilloscope

2. Reference disc (CA-1094)

3. Oscillator (10 Hz,-- 10 kHz, 0 - 3 Vp-p)

4. Frequen,?_._ounte_r (_r_adable no less than 5 KHz)

5. Filter for measu.rement

(Main unit)

Input

33 k_Q Output

0.091 pF (Oscilloscope)

T o

o

(Filter for measuren'lent)

(3) Preset

1.

" " 2,

Start service program.

Preset VR101, 102 as per right figure.

VR102

(F-GAIN)

3. Step.- 1. Focus gain (VR 102)

2. Tracking gain (VR104)

VR104

kL2J

(F-GAIN)

12 O'clock

12 O'ciock

4. Focus gain

Connection

Main Unit

TP101- L[-')(FEO) O--

TP101- (_ (FEI) 0--

TPI01- @ (VC) 0

Filter

Oscilloscope

C'ounter

! C'sc Ilator

Oscillator

1.1 kHz
2 Vp-p

(_+0.1V)

Counter

Oscilloscope

V H

Adjust

(Volume)

Check

(Oscilloscope)

1.1 kHz

• DC range

• X-Y mode

VR102

Y axis

C)

Phase 90°

X axis

Step

1. Push [11#AUSE '1(Displays track number

2. Connect oscillator.

3. Set oscillator to 1.1 kHz/2 Vp-p.

4. Switch oscilloscope input to

X-Y mode.

5. Adjust VR101 [F-G to symmetrize

: Lissajous figures tc X-Y axes.

Waveform not right

Y axis

7

I I1,_11| %11,, Q II,,,JU It--

5. Tracking gain

Connection

Oscilloscope

Main Unit

TP101- (_) (TEO) O_

TP101- 0 (TEl) O--

......T,P.t01.:.®(VC) 0

Filter

Counter

Oscillator

• Caution: Connect oscillator afterhl PAUSE] pushed and sewo function started

Oscillator Counter Oscilloscope Adjust

V H (Volume)

• 3.3 kHz

(_+120Hz)

• 0.8 Vp-p
(±011V)

3.3 kHz

(+_120Hz) • DC range

• X-Y mode

VR 104

Check

(Osci !oscope)

Y ax_s

'_ x axis

Phase 90°

Waveform not right

Y axis

Step

1. Push [_ PAUSE I . (Displays track number _.._ )

2. Connect oscillator.

3. Set oscillator to 3,3 kHz/0.8 Vp-p.

4. Switch oscilloscope ir put to X-Y mode

5. Adjust V [T-GAIN] to symmetrize
Lissajou figures to X-Y axes.