Panasonic SB-AK750, Service Manual

Page: 2 / 106

Motor DC servo motor
Recording system AC bias 100 kHz
Erase system AC erase 100 kHz
Tape speed 4.8 cm/s
Overall frequency response (+3, -6 dB) at DECK OUT
NORMAL 35 Hz to 14 kHz
S/N ratio 50 dB (A weighted)
Wow and flutter 0.18 % (WRMS)
Fast forward and rewind time Approx. 120 seconds with
C-60 cassette tape
n
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
Bit rate
MP3 32 kbps to 320 kbps
Sampling frequency
MP3 32 kHz, 44.1 kHz, 48 kHz
CD-DA 44.1 kHz
Decoding 16 bit linear
Digital filter 8 fs
D/A converter MASH (1 bit DAC)
Pick up
Wavelength 780 nm
Beam Source Semiconductor laser
Audio output (Disc)
Number of channels 2 (Stereo) (FL, FR)
n USB SECTION
Playable USB Storage Media
1) HDD
2) USB MP3 Player/Digital audio player
3) USB Thumbdrives
1 Safety Precautions 4
1.1. General Guidelines 4
1.2. Before repair and adjustment 4
1.3. Protection Circuitry 5
1.4. Caution for fuse replacement 5
1.5. Safety Part Information 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 5
3 Handling Precautions For Traverse Deck 7
4 Precaution of laser diode 9
5 Warning 10
Supported audio file format
MP3 bit rate
USB memory port
Maximum current 500 mA
Bit rate
MP3 32 kbps to 320 kbps
Sampling frequency
MP3 32 kHz, 44.1 kHz, 48 kHz
Audio output (MP3)
Number of channels 2 channel
Frequency response (MP3) 20 Hz to 20 kHz (0+/-1.0 dB)
S/N Ratio
USB unit out 85 dB
n GENERAL
Power supply AC 120 V, 60Hz
Power consumption 150 W
Power consumption in standby
mode 0.28 W
Dimensions (W x H x D) 250 x 330 x 323 mm
Mass 7.1 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90% RH (no condensation)
n SYSTEM
SC-AK750 (PL) Music center: SA-AK750 (PL)
Speaker: SB-AK750 (PL)
Subwoofer: SB-WAK750 (PL)
For information on speaker system, please refer to the original
Service Manual (Order No. MD0703024CE) for SB-AK750PL-K and
(Order No. MD0703025CE) for SB-WAK750PL-K.
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.
5.1. Service caution based on legal restrictions 10
6 Accessories 11
7 Operating Procedures 12
7.1. Main Unit Key Buttons Operations 12
7.2. Remote Controls Key Buttons Operations 12
8 New Features 14
8.1. Using the Music Port & Connecting and Playing a USB
Mass Storage Class Device 14
9 Self diagnosis and special mode setting 17
9.1. Service Mode Summary Table 17
9.2. Special Mode Table 1 17
CONTENTS
Page Page
2
SA-AK750PL