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– 8 –

The types of test mode for this microcomputer and specific test mode turning-on procedure are as follows. Only the unit key is used.
The remote control key is not valid. The power must be turned on while two keys are held down.
(1) CD test mode function

The power is turned while the (PRESET 

 ) and STOP (TUNING 

 ) keys are held down.

(2) Tuner test mode function

The power is turned on while the (PRESET 

 ) and PAUSE (BAND) keys are held down.

(3) LCD test mode function

The power is turned on while the (PRESET 

 ) and MEMORY keys are held down.

When the CD test mode is turned on, the CD pickup is moved to the innermost periphery, and the following indication appears.
The operation of CD test mode is as follows.

Indication

(1) The CD pickup is moved with the unit UP key and DOWN key.

UP key: The pickup is slid to the outer periphery.
DOWN key: The pickup is slid to the inner periphery. However, when it reaches the innermost periphery, it does not move further
inward.

(2) When the PLAY key is pressed in stop state, "the laser diode turns on if CD lid is closed" .

Indication

(3) When the PLAY key is pressed in laser ON state, playback is started from the current position of pickup.

Indication

(4) When the STOP key is pressed during playback, the laser goes out and playback is stopped, and the process returns to step

(1). (The pickup position does not change.)

(5) When the MEMORY key is pressed during playback, tracking servo ON/OFF is performed. (Even if the playback is stopped

in servo OFF state, the servo is turned on when the playback is restored.)

Indication

The current pickup position and time are indicated. (When the
pickup is moved with the UP/DOWN key, the time at that point
is indicated.)

The current playback track No. and time are indicated.

The tuner test mode is intended to store the measurement frequency for adjustment and inspection in the preset memory CH
without frequency adjustment in the case of tuner adjustment in the production line.
When the power is turned on while the PRESET 

 (DOWN) key and BAND (PAUSE) key are held down together, the frequency

for adjustment measurement of destination (specified according to AREA terminal) is preset-stored in the preset memory CH. (The
frequency to be preset-stored for specific destination is as shown in the next page.)

Others

While the CD lid is open (LID-SW = "H"), the test mode is turned on but the operations of step (2) and subsequent steps are not
performed. The operation of step (1) is performed.

Contents of error display

Error display

Contents of an error

Er  01

Er  02

when TOC information cannot be read normally.

When a PU-IN SW detection error occurs.

– 9 –

In the tuner test mode the band is FM, and the mode is FM STEREO in case of start-up.

As with the ordinary mode, when the PRESET 

 key is pressed for 1ch of preset memory CH, maximum CH is set. When the

PRESET 

  key is pressed for maximum CH of preset memory CH, 1ch is set.

The BAND key is valid. As in the ordinary mode, the band/FM MONO/STEREO mode can be switched.

To exit from the tuner test mode, turn off the power to the microcomputer.

Indication

The indication is the same as that of ordinary operation. However,
when the test mode is turned on, the indication shown left lights
for one second.

Preset frequencies for various destinations (random preset memory)

BAND (CH)

U.S.A.

EUROPE

GENERAL 1

GENERAL 2

 1

FM 87.5M

FM 87.50M

FM 87.50M

FM 87.5M

 2

FM 108.0M

FM 108.00M

FM 108.00M

FM 108.0M

 3

FM 98.0M

FM 98.00M

FM 98.00M

FM 98.0M

 4

FM 90.0M

FM 90.00M

FM 90.00M

FM 90.0M

 5

FM 106.0M

FM 106.00M

FM 106.00M

FM 106.0M

 6

AM 530K

AM 522K

AM 531K

AM530K

 7

AM1720K

AM1620K

AM1602K

AM1620K

 8

AM 990K

AM 990K

AM 990K

AM 990K

 9

AM600K

AM 603K

AM 603K

AM 600K

10

AM 1400K

AM 1404K

AM 1404K

AM 1404K

11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30

Note:
  The unit shown in table is Hz. K is x1000. M is x1,000,000.
  The slash indicates that data are not stored in the memory.
  FM is stereo mode.

When the LCD test mode is turned on, all the segments of LCD light.

Indication

– 10 –

  1. Tuner

(  ): AM mode
Marking except for (  ): FM mode

2. CD

(  ): Play mode
Marking except for (  ): Stop state

3. Deck section

(  ): Record mode
Marking except for (  ): Playback mode
Display / Control section:
(  ): Active state
Marking except for (  ): CD Function mode at stop state

• Schematic diagram and Wiring Side of P.W.Board for this

model are subject to change for improvement without prior
notice.

• Parts marked with “      ” (

          ) are important for

maintaining   the safety of the set. Be sure to replace these
parts with specified ones for maintaining the safety and
performance of the set.

• Resistor:

To differentiate the units of resistors, the symbol as K and M
are used: the symbol K means 1000 ohm and the symbol M
means 1000 kohm and the resistor without any symbol is an
ohm resistor. The resistor designated "Fusible" is a fuse type
resistor

• Capacitor:

To indicate the unit of capacitor, a symbol P is used: this
symbol P means micro-micro-farad and the unit of the capacitor
without such a symbol is microfarad. As to electrolytic capacitor,
the expression “capacitance/withstand voltage” is used.
(CH), (TH), (RH), (UJ): Temperature compensation
(ML): Mylar type
(P.P.): Polypropylene type

• The indicated voltage in each section is the one measured by

Digital Multimeter between such a section and the chassis
with no signal given.

SW102

RECORD/PLAYBACK

PLYBACK—RECORD

SW201

FUNCTION/POWER

TAPE—TUNER— CD/
OFF—ON

SW202

X-BASS

OFF—ON

SW203

SURROUND(162H ONLY)

OFF—ON

SW501

TUNER UP

OFF—ON

SW502

TUNER DOWN

OFF—ON

SW503

BAND

OFF—ON

SW504

MEMORY

OFF—ON

SW505

PRESET DOWN

OFF—ON

SW506

PRESET UP

OFF—ON

SW507

CD LID OPEN/CLOSE

OFF—ON

SW601

TAPE MAIN

OFF—ON

SW702

PICKUP IN

OFF—ON

KTA1266 GR
KTA1273 Y
KTC3194 Y
KTC3199 GR
KTC8050 D
KRA102 M
KRA109 M
KRC104 M
KRC107 M

FRONT

VIEW

E  C  B

(S)(G)(D)

(1) (2) (3)

– 11 –

62 51

37

46

56

39

55

38

54

33

53

32

11

8
4
2

~

+5V

FOCUS COIL

TRACKING COIL

PICKUP UNIT

18

28

29

13

3

25 26

5

20

6

21

49

50

52

53

51

54

Q804

+5V

23

6

63

43

64

10

44

12

45

9

14

13

43

16

44

17 18 19 20

15

32

40

1

61

58

57

CL, DAT, SELIAL CONTROL

CONSTANT

VOLTAGE

REGULATOR

16

27

31

28

15

30

29

M

M

M702

SLED

MOTOR

M701

SPINDLE

MOTOR

1 2 3 4

+7.4V

(CD)

SECTION

MAIN

TO

VVDD

XIN

XOUT

VDD

XVDD

EFMO

EFMIN

CLV+

CLV–

V/P

HFL

TES

TOFF

JP–

JP+

TGL

RES. CQCK. COIN

SQOUT. RWC. WRQ

LCHO

IC802

LC78622E

SERVO/SIGNAL

CONTROL

16.93MHz

XL801

SLI

SLC

CV+

JP–

DRF

CE

DAT

CL

CLK

DEF

SLD

SLEQ

SPO

FD

TO

SL+

SL–

F

E

FIN1

FIN2

64

62

+5V

Q801

VCC1

LDD

LASER

DRIVER

SERVO AMP.

LA9240M

IC801

30

1

+7.4V

9

7 8

22

24

10

25

11

IC803

LA6541

FOCUS/TRACKING

/SPIN/SLIDE

DRIVER

TO MAIN

SECTION

TO MAIN

SECTION