SONY SAVA27
Service Manual

SAVA-27

TEST MODE
MODE ALL FLUORESCENT INDICATOR TUBES LIGHT
When the AC plug is inserted to the power outlet with pressing the MASTER VOL + button, the all fluorescent indicator tubes light.

SECTION 1 GENERAL

This section is extracted from instruction manual.

SECTION 2 DISASSEMBLY
2-1. REMOVAL AMPLIFIER BLOCK 3-1. CIRCUIT BOARDS LOCATION

SECTION 3 DIAGRAMS

2
!§ One connector PS Board

POW-SW board INPUT board
!� Back panel 8 5th tapping screws (4�16)

POWER board POW-SR board POW-CN board POW-L board

KEY CHECK, LED LIGHTING MODE
1. Pull out the AC plug from the power outlet and turn the power OFF. 2. Connect the lead wire to TP3 on the KEY board. 3. Insert the AC plug to the power outlet and set to STANDBY mode. 4. Let the lead wire connected in step 1 contact to the ground. 5. All fluorescent indicator tubes light, and enter the key check mode. 6. Pressing any buttons, the number of button will be displayed on the fluorescent indicator tube. 7. After all buttons are pressed, it will be in the STANDBY mode. Button POWER MASTER VOL� MASTER VOL + INPUT SURROUND CTR MODE S.WOOFER Note: 1. The LED (D505)lights while pressing each button. The LED lights in red when ever number of buttons are pressed, and it lights in green when odd number of buttons are pressed. 2. The LED lights even when the pressed button is pressed again. � Parts Location Button Number 2 3 4 5 6 7 8 LED Color Red Green Red Green Red Green Red

1

3
7 Display panel assembly

4

4

5 Four tapping screws

POW-R board DOLBY board

(4�20) SDN651
!¶ Amplifier

5
6 Flat type wire (27core)

MAIN board

PS board

DISPLAY board
9 8th tapping screws (4�16) !º Three tapping screws (4�16)

1 2 3 4

LEFT CHANNEL SPEAKER/CENTER CHANNEL WOOFER CENTER CHANNEL TWEETERS RIGHT CHANNEL SPEAKER/CENTER CHANNEL WOOFER SUPER WOOFER

1 Grill frame assembly

T1 board

KEY board
!¡ 6P connector

T2 board

5 REAR SPEAKER

!� 5th screws (BVTP 3�8)

!¶

[KEY BOARD] � Conductor side �
6 7 8 !§ !� 9

IC503

CN552

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THEATER PRO LOGIC STADIUM GAME INPUT1 INPUT2 MUTING MASTER VOL SUPER WOOFER MODE (1, 2, OFF) SUR OFF HALL POWER POWER STANDBY indicator ON/READY indicator VOLUME S.WOOFER Remote Sensorg SURROUND INPUT
2 Ornament frame 4 Front frame assembly 3 Three tapping screws (4�20) !£ Four screws (BVTP 3�8) !¢ Two screws

(BVTP 3�8)

S506 R557 TP3
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