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Model
SA-BTX70EB SA-BTX70EG SA-BTX68EF
Pages
127
Size
10.33 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio / BLU-RAY DISC HOME THEATER SOUND SYSTEM
File
sa-btx70eb-sa-btx70eg-sa-btx68ef.pdf
Date

Panasonic SA-BTX70EB / SA-BTX70EG / SA-BTX68EF Service Manual ▷ View online

10
2.4.
Handling Precautions for Traverse Unit
The laser diode in the optical pickup unit may break down due to static electricity of clothes or human body. Special care must be
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the traverse unit.
2.4.1.
Cautions to Be Taken in Handling the Optical Pickup Unit
The laser diode in the optical pickup unit may be damaged due to electrostatic discharge generating from clothes or human body.
Special care must be taken avoid caution to electrostatic discharge damage when servicing the laser diode.
1. Do not give a considerable shock to the optical pickup unit as it has an extremely high-precise structure.
2. To prevent the laser diode from the electrostatic discharge damage, the flexible cable of the optical pickup unit removed
should be short-circuited with a short pin or a clip.
3. The flexible cable may be cut off if an excessive force is applied to it. Use caution when handling the flexible cable.
4. The antistatic FPC is connected to the new optical pickup unit. After replacing the optical pickup unit and connecting the flexi-
ble cable, cut off the antistatic FPC.
Figure 1
2.4.2.
Grounding for electrostatic breakdown prevention
Some devices such as the DVD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electric-
ity in the working environment. Proceed servicing works under the working environment where grounding works is completed.
2.4.2.1.
Worktable grounding
1. Put a conductive material (sheet) or iron sheet on the area where the optical pickup is placed, and ground the sheet.
11
2.4.2.2.
Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body.
Figure 2
12
3 Service Navigation
3.1.
Service Information
This service manual contains technical information which will allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with the original ser-
vice manual.
 BD Drive Digital P.C.B Assembly:
1) This service manual does not contain the following information, because of the impossibility of servicing at
     component level.
    - Exploded View and Parts List for individual parts of BD Mechanism.
2) The following category are recycle module part. Please send them to Central Repair Center.
 
   - BD Mechanism/Digital P.C.B. Assembly (BTX70EB: RFKNBTX70EB) 
                                                    (BTX70EG: RFKNBTX70EG)
                                                    (BTX68EF: RFKNBTX68EF)
• Micro-processor & EEPROM IC:
1) The following components are assembled part (with download firmware or device keys).
      - Micro-processor IC, IC100 (BTX70EB: RFKWMBTX70EB)
                                                   (BTX70EG: RFKWMBTX70EG)
                                                   (BTX68EF: RFKWMBTX68EF)
      - EEPROM IC, IC105 (BTX70EB: RFKWMBTX70EB)
                                          (BTX70EG: RFKWMBTX70EG)
                                          (BTX68EF: RFKWMBTX68EF)
                                         
• Speaker system
1) For information, please refer to original service manual as follow:- 
      a) SB-BTX70EG-K (Order No. PSG0905005CE) - For SA-BTX70EB/EG 
      b) SB-BTX68EF-K (Order No. PSG0905031CE) - For SA-BTX68EF 
13
4 Specifications
Main unit SA-BTX70EB/EG, SA-BTX68EF
O
GENERAL
Power supply:
AC 220V to 240V, 50 Hz
iPod Connector:
DC OUT 5V 500mA Max
Power consumption:
85 W
Power consumption in standby mode:
approx. 0.3 W
Dimensions (W
××××
H
××××
D):
500 mm
×
201 mm
×
114 mm
Mass:
Approx 3.1 kg
Operating temperature range:
°
C to +40 
°
C
Operating humidity range:
35 % to 80 % RH
(no condensation)
O
AMPLIFIER SECTION (For SA-BTX70EB/EG only)
RMS TTL Power Output:
375 W
Front Ch:
125 W per channel (6 
), 1 kHz, 10% THD
Subwoofer Ch:
125 W per channel (6 
), 100 Hz, 10% THD
DIN TTL Power Output:
195 W
Front Ch:
65 W per channel (6 
), 1kHz, 1.0% THD
Subwoofer Ch:
65 W per channel (6 
), 1kHz, 1.0% THD
Audio input
AUX
x1
Digital audio input
Optical digital input:
x2
Sampling frequency:
32 kHz, 44.1 kHz, 48 kHz
Audio Format:
PCM, Dolby Digital
Headphone Outputt
Accommodation Impedance:
16 
 to 64 
O
AMPLIFIER SECTION (For SA-BTX68EF only)
RMS TTL Power Output:
260 W
Front Ch:
105 W per channel (6 
), 1 kHz, 10% THD
Subwoofer Ch:
50 W per channel (6 
), 100 Hz, 10% THD
DIN TTL Power Output:
105 W
Front Ch:
40 W per channel (6 
), 1kHz, 1.0% THD
Subwoofer Ch:
25 W per channel (6 
), 1kHz, 1.0% THD
Audio input
AUX
x1
Digital audio input
Optical digital input:
x2
Sampling frequency:
32 kHz, 44.1 kHz, 48 kHz
Audio Format:
PCM, Dolby Digital
Headphone Outputt
Accommodation Impedance:
16 
 to 64 
O
FM TUNER SECTION
Frequency range: 
87.50 MHz - 108.00 MHz (50-kHz step)
Antenna terminals:
75 
 (unbalanced)
O
NETWORK SECTION
Ethernet
10BASE-T/100BASE-TX (1 system)
O
O
O
O
DISC SECTION
Playable disc:
BD-Video
BD-ROM: Version 2
BD-RE: Version 3 (Single Layer, Dual Layer), JPEG
*7
BD-R:    Version 2 (Single Layer, Dual Layer)
DVD-RAM:
DVD Video Recording format, AVCHD format
*9
, JPEG
*5
DVD-R/DVD-R DL:
DVD Video format
*2
, DVD-Video Recording format
*2
, AVCHD 
format
*2,9
, JPEG
*5
, MP3, DivX
*8
DVD-RW:
DVD Video format
*2
, DVD-Video Recording format
*2
, AVCHD 
format
*2,9
+R/+RW/+R DL:
Video
*2
, AVCHD format
*2,9
DVD-Video:
DVD-Video format
CD-Audio:
CD-DA
CD-R/CD-RW:
CD-DA, JPEG
*6
, MP3, DivX
*8
Optical Pick up
System with 2 lenses
Wavelength (BD/DVD/CD):
405/661/783 nm
LASER Specification:
Class 1 LASER Product
Wavelength (BD/DVD/CD):
405/661/783 nm
Laser power:
No hazardous radiation is emitted with the safety protection
O
SD CARD SECTION
SD card slot:
Connector (1 system)
SD card:
SD Memory Card
*3
 formatted FAT12, FAT16, 
FAT32
*4
:JPEG
*5
, AVCHD format
*9
, MPEG2
                 -Usable capacity will be less (SD Card)
*2
Finalizing is necessary
*3
Include SDHC card
Include miniSD cards (need a miniSD Adaptor)
Include microSD cards (need a microSD Adaptor)
*4
Does not support long file name
*5
The total combined maximum number of recognizable picture 
contents and folder: 3000 picture contents and 300 folders.
*6
The total combined maximum number of recognizable picture 
contents and folder: 999 picture contents and 99 folders.
*7
The total combined maximum number of recognizable picture 
contents and folder: 9999 picture contents and 300 folders.
*8
The total combined maximum number of recognizable picture 
contents and folder: 200 files and 300 folders.
*9
AVCHD format V1.0
O
USB Device SECTION
USB Slot:
Connector (1 System)
USB Standard:USB 2.0 High Speed
MP3, JPEG
*5
, DivX
*8
Format:
FAT 12, FAT 16, FAT 32
O
VIDEO SECTION
Signal system:
PAL/NTSC
Video output
Output level:
1 Vp-p (75 
)
Output connector:
Pin jack (1 system)
HDMI AV output
Output format:
480p (525p)/576p (625p)/720p (750p)/1080i (1125i)/1080p
(1125p)
Output connector:
Type A (19 pin)
HDMI
TM
 (v.1.3a with Deep Color, x.v.Color
TM
, High Bit rate
Audio)
HDAVI Control:
This unit supports “HDAVI Control 4” function.
Note:
1.
Specifications are subject to change without notice.
Mass and dimensions are approximate.
2.
Total harmonic distortion is measured by the digital spectrum 
analyzer.
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