Panasonic SC-HC37EC / SC-HC37EE / SC-HC37EF / SC-HC37EG Service Manual ▷ View online
9
2.4.
Handling Precaution for Traverse
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.
taken avoid caution to electrostatic breakdown when servicing and handling the laser diode in the Traverse.
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.
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
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-
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.
2.4.2.
Grounding for electrostatic breakdown prevention
Some devices such as the CD player use the optical pickup (laser diode) and the optical pickup will be damaged by static electricity
in the working environment. Proceed servicing works under the working environment where grounding works is completed.
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.
2.4.2.2.
Human body grounding
1. Use the anti-static wrist strap to discharge the static electricity form your body (Figure 2).
10
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.
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 original service
manual.
manual.
• Micro-processor:
1) The following components are supplied as an assembled part.
- Micro-processor IC, (IC6002) (RFKWMHC37EG)
11
4 Specifications
Q General
Power consumption
Power consumption
25 W
Power consumption in standby
mode
mode
Approx. 0.2 W
Power supply
AC 220 V to 240 V, 50 Hz
Dimensions (W x H x D)
480 mm x 197 mm x 84 mm
Depth without stand 75 mm
Mass
Approx. 2.5 kg
Operating temperature range
0
°C to +40 °C
Operating humidity range
35% to 80 % RH
(no condensation)
Q Amplifier Section
RMS Output Power Stereo Mode
Front Ch (both ch driven)
RMS Output Power Stereo Mode
Front Ch (both ch driven)
20 W per channel (6
Ω),
1 kHz, 10% THD
Total RMS Stereo mode power
40 W
Q Tuner section
Preset Memory
Preset Memory
FM 30 stations
Frequency modulation (FM)
Frequency range
Frequency range
87.50 MHz to 108.00 MHz
(50 kHz step)
Antenna terminals
75
Ω (unbalanced)
Q Terminals section
USB port
USB standard
USB port
USB standard
USB 2.0 full speed
Media file format support
MP3 (*.mp3)
USB device file system
FAT12, FAT16, FAT32
USB port power
DC OUT 5 V, 500 mA MAX
iPod Connector
DC OUT 5 V, 1.0 A MAX
Phone jack
Terminal
Terminal
Stereo, Ø3.5 mm jack
Q Disc Section
Disc played [8 cm or 12 cm]
Disc played [8 cm or 12 cm]
CD, CD-R/RW (CD-DA, MP3*)
* MPEG-1 Layer 3, MPEG-2 Layer 3
Pick up
Wavelength
Pick up
Wavelength
790 nm (CD)
Laser power
CLASS 1
Audio output (Disc)
Number of channels
Number of channels
2 ch (FL, FR)
Q Speaker System Section
Type
Type
1 way, 1 speaker system
(Passive Radiator)
Speaker unit(s)
Full range
Full range
6.5 cm Cone type x 1 per channel
Passive Radiator
8 cm x 2 per channel
Impedance
6
Ω
• Specifications are subject to change without notice. Mass and
dimensions are approximate.
• Total harmonic distortion is measured by the digital spectrum ana-
lyzer.
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5 General/Introduction
5.1.
Inserting or removing media
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