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8

This set provides four test modes as follows.
1. INPUT CHECK MODE
2. KEY CHECK MODE
3. AMP CHECK MODE
4. DEMONSTRATION MODE
The following describes each test mode in detail.

Procedure:
1. While pressing the both 

[S.WOOFER]

 and 

[MASTER VOL  +]

 buttons,  turn the power ON.

2. Fluorescent indicator tube display “SAVA-500”, after the all lights up, and enter the input check mode.
3. Pressing the 

[INPUT]

 button varies the display as follows.

SAVA-500

*********

S.WOOFER

*1

S.WOOFER check mode (5.1CH INPUT check mode)

AUX

AUX input (SURROUND OFF) check mode

VIDEO

VIDEO input (SURROUND OFF) check mode

TV

TV input (SURROUND OFF) check mode

AUTO POWER

AUTO POWER ON/OFF check mode

*1 Pressing the 

[SURROUND]

  button makes the S.WOOFER level minimum, or the 

[S.WOOFER]

 button makes the S.WOOFER level

maximum, or 

[CENTER MODE]

 button returns default.

  In each mode, the volume is muted except for the channels that can be checked.

4. To release the test mode, push back 

[   ]

 button.

Procedure:
1. Push back 

[   ]

 button to turn the power OFF.

2. Connect the lead wire to TP3 and TP4 on the KEY board.
3. Push 

[   ]

 button to power ON.

4. Let the lead wire short TP3 and TP4.
5. Fluorescent indicator tube display “KEY CHK 500”, and enter the key check mode.
6. Pressing any buttons, the number of button will be displayed on the fluorescent indicator tube.
7. Pressing the first button turns on the [READY] LED (red), and the second button turns on the 

[ON]

 LED (green). Thus, two LEDs light

up alternately each time the buttons are pressed.

8. After all buttons are pressed, it will be in the STANDBY mode.

 If a check failed, the set does not go in STANDBY state, and you cannot exit from the test mode. In this case, quit the test mode by pushing back 

[   ]

button.

Button

INPUT

SURROUND

CENTER MODE

WOOFER

MASTER VOL –

MASTER VOL +

Button Number

1

2

3

4

5

6

U

U

U

U

9

Procedure:
1. Push back 

[   ]

 button to turn the power OFF.

2. Connect the lead wire to TP1 and TP2 on the KEY board.
3. Push 

[   ]

 button to power ON.

4. Let the lead wire connected TP1 and TP2.
5. Fluorescent indicator tube display “AMP CHK 500”, and enter the amp check mode.
6. The check step advances in order as TP1 and TP2 are shorted.

*1 The step 12 is the AUTO POWER ON/OFF check.
*2 The step 12 is automatically turned the power OFF in one second, ON when a signal is entered to TV input, and OFF when a signal

input stops.

*3 After the step 12 finished, return the parameters to default values, then turn the power OFF.
7. To release the test mode, push back 

[   ]

 button.

AMP CHK 500

AMP CHK 1

AMP CHK 2

AMP CHK 3

AMP CHK 4

AMP CHK 5

AMP CHK 6

AMP CHK 7

AMP CHK 8

AMP CHK 9

AMP CHK 10

AMP CHK 11

AMP CHK 12

STEP

0

1

2

3

4

5

6

7

8

9

10

11

12

INPUT

VIDEO

VIDEO

VIDEO

VIDEO

VIDEO

VIDEO

AUX

AUX

5.1

5.1

5.1

5.1

TV

SW MODE

1

OFF

OFF

OFF

1

2

1

1

1

1

1

1

1

SUR MODE

PRO LOGIC

OFF

PRO LOGIC

GAME

OFF

OFF

PRO LOGIC

PRO LOGIC

–

–

–

–

PRO LOGIC

BASS

0

0

0

0

0

0

0

0

0

0

–5

+5

0

TREBLE

0

0

0

0

0

0

0

0

0

0

–5

+5

0

VOL

MIN

MAX

MAX

MAX

MAX

MAX

MIN

MAX

MAX

MIN

MAX

MAX

MAX

*

S505

S506

S502

TP3 TP2

TP4

TP1

S504

S503

S501

U

U

U

10

• Press the 

[INPUT]

 and 

[MASTER VOL +]

 buttons simultaneously

to start demonstration mode.

• When the set goes in demonstration mode, the 

[ON]

 LED (green)

blinks, and the 

[STANDBY]

 and 

[READY]

 LEDs (red) light up.

• The sequence during the demonstration mode is following as

bellow.

1. In the  demonstration mode, only the 

[INPUT]

, 

[MASTER VOL]

,

and [S.WOOFER] buttons are active.

2. The operation with remote commander is disabled.

@@@@@@@@@

@

H E L L O

@

WELCOME TO SAVA

*1

SOUND SYSTEM

I AM SAVA-500

*1

MY FEATURES ARE 4

INPUTS AND 5

*1

SURROUND MODE

LISTEN TO

*1

MY SOUND

5.1 INPUT

5.1 CH IN

OTHER INPUT

PRO LOGIC

*2

C.STUDIO

*2

HALL

*2

STUDIUM

*2

GAME

*2

THANK YOU

*2

1

The demonstration mode operates with the input, and volume
position selected last.

2

The input and volume are variable even during demonstration
mode.

• To release the demonstration mode, push back 

[   ]

 button.

*1 First seven characters are dis-

played, then eighth and subse-
quent characters are displayed.
(Characters run on the display)

*2 Displayed for 5 seconds.

U

11

11

• X

: parts extracted from the component side.

• Y

: parts extracted from the conductor side.

•

p

: parts mounted on the conductor side.

• b

: Pattern from the side which enables seeing.

(The other layers' patterns are not indicated.)

•

Indication of transistor.

B

These are omitted.

C

E

Q

B

These are omitted.

C

E

Q

Note on Schematic Diagram:
• 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.

•

¢

: internal component.

•

2

: nonflammable resistor.

•

5

: fusible resistor.

•

C

: panel designation.

•

U

: B+ Line.

•

V

: B– Line.

• Voltages and waveforms are dc with respect to ground

under no-signal conditions.
no mark : AUDIO

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

Ω

).

Voltage variations may be noted due to normal produc-
tion tolerances.

• Waveforms are taken with a oscilloscope.

Voltage variations may be noted due to normal produc-
tion tolerances.

• Circled numbers refer to waveforms.
• Signal path.

F

: AUDIO

• Abbreviation

CND

: Canadian model

Note:
The components identi-
fied by mark 

!

 or dotted

line with mark 

!

 are criti-

cal for safety.
Replace only with part
number specified.

Note:
Les composants identifiés par
une marque 

!

 sont critiques

pour la sécurité.
Ne les remplacer que par une
pièce por tant le numéro
spécifié.

AC-SW board

LED board

STANDBY board

KEY board

DISPLAY board

REG board

FILTER board

POW-LR
board

POW-CN board

POW-SW board

POW-SR 
board

CONNECTOR board

AMP board

MAIN board