Panasonic SBAK-750-P, SBAK-750-PC Service manual

Specifications

Type 3 way, 3 speaker system (Bass reflex)

Speaker(s)

Woofer 16 cm (6-1/2’’) cone type

Tweeter 6 cm (2-3/8’’) cone type

Super tweeter Piezo type

Impedance

HIGH 3 Ω

LOW 3 Ω

Input power (IEC)

HIGH 110 W (Max)

LOW 110 W (Max)

Output sound pressure level 87 dB/W (1.0 m)

Cross over frequency 2 kHz, 10 kHz

ORDER NO. MD0703011CE

A6

Speaker System

SB-AK750P
SB-AK750PC

Colour

(K)...Black Type

Frequency range 30 Hz to 24 kHz (-16 dB)

31 Hz to 21 kHz (-10 dB)

Dimensions (W X H X D) 232 X 373 X 226 mm

(9-1/8’’ X 14-11/16’’ X 8-29/32’’)

Mass 3.4kg(7.5lb.)

Notes:

1. Specifications are subject to change without notice. Mass and
dimensions are approximate.

2. Total harmonic distortion is measured by the digital spectrum
analyzer.

3. The labels “HIGH“and “LOW” on the rear of the speakers refer to
High frequency and Low frequency.

CONTENTS

Page Page

1 System Combination 2

1.1. System Breakdown

2 Assembling and Disassembling

2.1. Caution

2.2. Disassembly Procedures

2.3. Disassembly Flow Chart

2.4. Disassembly of Rear cabinet assembly

2.5. Disassembly of Woofer

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2.6. Disassembly of Tweeter

2.7. Disassembly of Piezo

3 Connection of the Speaker Cables

4 Connection of the Wiring Diagram

5 Exploded Views

5.1. Cabinet Parts Location

5.2. Packaging

6 Replacement Parts List

© 2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.

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/ SB-AK750P / SB-AK75 0PC

1 System Combination

1.1. System Breakdown

Note:

The table below show the breakdown for speaker combinations used in main unit system.

System SC-AK750P-K
Music Center SA-AK750P-K
Front Speakers SB-AK750P-K
Subwoofer SB-WAK750P-K

System SC-AK750E-K
Music Center SA-AK750E-K
Front Speakers SB-AK750P-K
Subwoofer SB-WAK750P-K

System SC-AK750EB-K
Music Center SA-AK750EB-K
Front Speakers SB-AK750P-K
Subwoofer SB-WAK750P-K

System SC-AK750EG-K
Music Center SA-AK750EG-K
Front Speakers SB-AK750P-K
Subwoofer SB-WAK750P-K

System SC-AK750GN-K
Music Center SA-AK750GN-K
Front Speakers SB-AK750P-K
Subwoofer SB-WAK750P-K

System SC-AK750PC-K
Music Center SA-AK750PC-K
Front Speakers SB-AK750PC-K
Subwoofer SB-WAK750PC-K

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2 Assembling and Disassembling

2.1. Caution

“Attention Servicer”

Some chassis components may have sharp edges.

Be careful when disassembly and servicing.

1. This section describes procedure for checking the operation of replacing the main components.

2. For reassembly after operation checks or replacement, reverse the respective procedures.

3. Select items from the following index when checks or replacement are required.

4. Refer to the Part No.on the page of “Parts Location and Replacement Parts List” (Section 6) if necessary.

/ SB-AK750P / SB-AK75 0PC

2.2. Disassembly Procedures

· Disassembly of Rear cabinet assembly

· Disassembly of Woofer

· Disassembly of Tweeter

· Disassembly of Piezo

2.3. Disassembly Flow Chart

The following chart is the procedure for disassembly the casing and inside parts for internal inspection when carrying out the
servicing.

To assemble the unit, reverse the steps shown in the chart as below.

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/ SB-AK750P / SB-AK75 0PC

2.4. Disassembly of Rear cabinet
assembly

Step 3: Detach the front panel as arrow shown.

Step 1: Remove 4 screws from front panel.

Step 2: Insert flathead screwdriver into the grooves to push the

front panel as arrow shown.

Step 4: Detach the (+) red and (-) black wires from woofer.

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