Panasonic sa ak 770 gcp service manual

Page 2

SA-AK770PL l SA-AK770GCP

Approx. 120 seconds with C-60 cassette tape
I DISC SECTION
Disc played [8 cm or 12 cm]
(1) CD Audio (CD- DA)
(2) CD-R/RW (CD-DA, MP3" formatted disc)
(3) MP3
* MPEG-1 Layer 3, MPEG-2 Layer 3
Pick up
780 nm

Semiconductor laser

Wavelength

Beam Source

Audio output (Disc)
Number of channel

FL = Front left channel
FR = Front right channel

1 (FL, FR, SW)

SW = Subwooler channel
I USE SECTION

USB Port

USB Standard

Media file format support
MP3 (.mp3)

USB device file system
FAT 12

FAT 16

FAT 32

USB port power

USB Ripping (recording)
Recording file format
MP3 (.mp3)

Bit rate

USB 2.0 full speed

500 mA (Max)

128 kbps/ 192 kbps / 320 kbps

USB recording speed
I GENERAL
Power supply

1x, max 4x (CD only)

AC 120 V 60HZ (PL only)

AC 110 to 127/220 to 240 V, 50/60 HZ (GCP only)
Power consumption 164 W (PL Only)
145 w (GCP Only)

250 x 331 x 334 mm

4.9 kg

0 to 40°C

35 to 80% RH (no condensation)

Power consumption in standby mode:

Dimensions (WxHxD)

Mass

Operating temperature range
Operating humidity range

0.3 W (approx) (PL only)
0.5 W (approx) (GCP only)

I SVSTEM
SC-AK770 (PL) Music center: SA-AK770 (PL)
Speakers: SB»AK770 (PL)
Subwoofer: SB-WAK770 (PL)
Music center: SA-AK770 (GCP)
Speakers: SB-AK770 (PL)
Subwoofer: SB-WAK770 (PL)

For information on speaker system, please refer to the original
Service Manual (Order No. MDOSDSOOSCE) for SB-AK770PL-K &
(Order No. MD0805009CE) for SB-WAK770PL-K.

Notes:

SC-AK770 (GCP)

1.3pecifications are subject to change without notice. Mass and
dimensions are approximate.

2.Tota| harmonic distortion is measured by the digital spectrum
analyzer.

A WARNING

This service information is designed for experienced repair technicians only and is not designed tor use by the general public.

It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product,
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

CONTENTS

1 Safety Precautions -------
2 Prevention of Electro Static Discharge (ESD) to

Electrostatically Sensitive (ES) Devices ................................ 5
3 Handling Precautions for Traverse Unit ................................ 5
4 Precaution of Laser Diode .................................................... a
5 About Lead Free Solder (PbF) ............................................... 9

6 Operation Procedures -----

7 Self diagnosis and special mode setting
8 Assembling and Disassembling -----------
9 Disassembly and Assembly of Traverse Unit Assembly in

Play Position ----------------------------------------------------------------------- 58
10 Service Fixture and Tools ................................................... 50
11 Service Positions ................................................................ 50

Page

12 Procedure for Checking Operation of Individual Parts of Deck
Mechanism Uni

13 Measurement And Adjustments
14 Voltage Measurement and WaveIorm Chart ------------------------- 71
15 Wiring Diagram ------------------------------------------------------------------- 79
..................................................... 51
17 Notes 01 Schematic Diagram

16 Block Diagram

18 Schematic Diagram

19 Printed Circuit Board 109
20 Illustration oi les, Transistors and Diodes ........................ 117
21 Terminal Function at integrated Circuits ........................... 115

22 Exploded Views ........................................................ 121
23 Replacement Parts List ..................................................... 125