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— 5 —

— 6 —

*

All preset contents are cleared when this mode is activated.  Use
this mode before returning the product to clients upon
completion of repair.

*

Procedure:
While depressing the VIDEO, TAPE/MD and the CD buttons
simultaneously, press the power [I/u] button to turn on the main
power.  The message INITIAL appears and initialization is
performed.

*

All fluorescent segments are tested.  When this test is activated,
all segments turn on at the same time, then each segment turns
on one after another.

*

Procedure:
While depressing the CD and the TAPE/MD buttons
simultaneously, press the power [I/u] button to turn on the main
power.  All segments turn on at the same time, then each segment
turns on one after another.  The message FINISH appears when
this test is complete.

*

Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.

*

Procedure:
Set the FUNCTION to AM.  Turn off the main power.
While depressing the TUNING+ button, press the power [I/u]
button to turn on the main power.  Either the message 9k STEP
or 10k STEP appears.  Select the desired step.

*

The rear speaker gain can be set to either NORMAL or GAIN
UP.

*

Procedure:
While depressing the -SURROUND button, press the power [I/
u] button to turn on the main power. Either the message
NORMAL or GAIN UP appears.  When the product enters this
mode again, the other gain appears.  Select the desired gain.

• 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

/

4 

W or less unless otherwise

specified.

•

%

: indicates tolerance.

•

¢

: internal component.

•

2

: nonflammable resistor.

•

1

: fusible resistor.

•

C

: panel designation.

•

U

: B+ Line.

•

V

: B– Line.

• Voltages and waveforms are dc with respect to ground

under no-signal (detuned) conditions.
No mark : FM

• Voltages are taken with a VOM (Input impedance 10 M

Ω

).

Voltage variations may be noted due to normal production
tolerances.

• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.

F

: FM

•

X

: parts extracted from the component side.

•

b

: Pattern from the side which enables seeing.

SP-SW BOARD

PRIMARY BOARD

SECONDARY BOARD

STANDBY BOARD

MAIN BOARD

VIDEO BOARD

SWITCH BOARD

VOLUME BOARD

VR-TONE BOARD

KEY BOARD

DISPLAY BOARD

Note: The components identified by mark 

!

 or dotted line

with mark 

!

 are critical for safety.

Replace only with part number specified.

1

 

IC300  

@¢

 (OSC)

2

 

IC201  

#¢

 (X1)    

8MHz

4.19MHz 

4.75Vp-p

5.3Vp-p

— 7 —

— 8 —

D201

C-3

D202

C-3

D203

C-3

D204

B-13

D211

C-9

D213

C-9

D214

C-9

D231

C-1

D234

C-2

D235

C-9

D236

C-10

D237

C-11

D239

C-3

D240

C-2

IC201

D-6

IC202

B-2

IC203

D-11

Q201

B-13

Q202

B-12

Q231

C-1

Q232

E-3

1

2

A

B

C

D

E

F

G

H

3

4

5

6

7

8

9

10

11

12

13

14

15

F

TO

VOLUME BOARD

CNP202

J

TO
MAIN BOARD
CNS204

1-665-280-

11

(12)

1

10

E

1

9

(5.1 INPUT)

1  80

24
25

65
64

40  41

IC201

1-665-281-

11

(12)

(HALL)

(C.STUDIO)

(PRO LOGIC)

(REMOTO SEUSOR)

4

1

PRESET

TUNING

MEMORY

DIRECT

VIDEO

TV/DBS

CD

TUNER

PHONO

TAPE/MD

EFFECT

DELAY TIME

SET UP

5.1/DVD

INPUT

MODE

SHIFT

FM MODE

TUNING

REAR

LEVEL

CENTER

LEVEL

POWER

AM

FM

E

E

2

1

3

4

6

7

8

9

0

5

SURROUND

ON/OFF

4

1

E

16

23

22

1

2

(Page 16)

(Page 11)

— 9 —

— 10 —

H

TO
MAIN BOARD
CNP503

TO
MAIN BOARD
CNP504

E

TO
MAIN BOARD
CNS701

I

TO
MAIN BOARD
CNS251

G

1-665-284-

11

(12)

1-665-
   283-

1-665-261-

1-665-
   255-

11

(12)

11

(12)

11

(12)

M

MASTER VOLUME

1

10

E

E

E

E

E

10

1

E

FRONT

REAR

WOOFER

CENTER

J501

WOOFER

J253

R

L

R

L

R

L

F

TO
DISPLAY BOARD
CNS202

10

1

BASS

BASS

BOOST

TREBLE

BALANCE

E

E

E

E

5

8

4

1

16

15

30

1

1

5

4

8

1

7

1

7

16

CN505

CN501

(Page 15)

(Page 15)

(Page 15)

(Page 7)

(Page 15)

JW261

E

— 11 —

— 12 —

1

2

A

B

C

D

E

F

G

H

I

3

4

5

6

7

8

9

10

11

12

13

D238

F-5

D310

H-12

IC404

C-9

IC500

C-11

IC502

C-12

Q361

D-6

Q362

C-6

Q363

C-6

Q364

C-6

Q365

C-6

Q367

H-11

Q401

D-8

Q402

D-9

Q451

D-8

Q452

D-9

Q501

B-11