Sharp cd sw 200 e service manual
This is the 71 pages manual for sharp cd sw 200 e service manual.
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Extracted text from sharp cd sw 200 e service manual (Ocr-read)
Page 1
CD-SW200E – i – SAFETY PRECAUTION FOR SERVICE MANUAL Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam. (1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens. (2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping. (3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup. (4) Under no circumstances look directly into the Pickup Lens at any time. (5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation exposure. IMPORTANT SERVICE NOTES (FOR U.K. ONLY) Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage test to be applied to ensure the unit is safe for the customer to use. Setting of Withstanding Voltage Tester and set. Set name set value Withstanding Voltage Tester Test voltage 4,240 VPEAK 3,000 VRMS Set time 6 secs Set current (Cutoff current) 4 mA Unit Judgment OK: The "GOOD" lamp lights. NG: The "NG" lamp lights and the buzzer sounds. PROBE AC OUT UNIT SHORT-CIRCUIT AC POWER SUPPLY CORDCONNECT THE PROBE TO GND OF CHASSIS SCREW WITHSTANDING VOLTAGE TESTER Laser Diode Properties Material: GaAIAs Wavelength: 795 nm Emission Duration: continuous Laser Output: max. 0.6 mW
Page 1
CD-SW200E – i – SAFETY PRECAUTION FOR SERVICE MANUAL Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam. (1) When the cabinet has been removed, the power is turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens. (2) The Laser Power Output of the Pickup inside the unit and replacement service parts have already been adjusted prior to shipping. (3) No adjustment to the Laser Power should be attempted when replacing or servicing the Pickup. (4) Under no circumstances look directly into the Pickup Lens at any time. (5) CAUTION - Use of controls or adjustments, or performance of procedures other than those specified herein may result in hazardous radiation exposure. IMPORTANT SERVICE NOTES (FOR U.K. ONLY) Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage test to be applied to ensure the unit is safe for the customer to use. Setting of Withstanding Voltage Tester and set. Set name set value Withstanding Voltage Tester Test voltage 4,240 VPEAK 3,000 VRMS Set time 6 secs Set current (Cutoff current) 4 mA Unit Judgment OK: The "GOOD" lamp lights. NG: The "NG" lamp lights and the buzzer sounds. PROBE AC OUT UNIT SHORT-CIRCUIT AC POWER SUPPLY CORDCONNECT THE PROBE TO GND OF CHASSIS SCREW WITHSTANDING VOLTAGE TESTER Laser Diode Properties Material: GaAIAs Wavelength: 795 nm Emission Duration: continuous Laser Output: max. 0.6 mW
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CD-SW200E 1. Employing lead-free solder "Main/Display/Tumer/Power/Game Input/CD Servo PWB/LED" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWB andservice manuals. The alphabetical character following LF shows the type of lead-free solder. Example: Indicates lead-free solder of tin, silver and copper. 2. Using lead-free wire solder When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks. As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area. 3. Soldering As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition. Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper. Be careful when replacing parts with polarity indication on the PWB silk. Lead-free wire solder for servicing Ref No. Description Parts No. PWB-A 92LPWB6383MANS Main/Display PWB-B 92LPWB6383PWRS Power/Game Input PWB-C 92LPWB6230CDUS CD Servo PWB-D 92LPWB6291TUNS Tuner PWB-E 92LPWB6230LEDS LED
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CD-SW200E 1. Employing lead-free solder "Main/Display/Tumer/Power/Game Input/CD Servo PWB/LED" of this model employs lead-free solder. The LF symbol indicates lead-free solder, and is attached on the PWB andservice manuals. The alphabetical character following LF shows the type of lead-free solder. Example: Indicates lead-free solder of tin, silver and copper. 2. Using lead-free wire solder When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional lead wire solder may cause damage or accident due to cracks. As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering bit, contact our service station or service branch in your area. 3. Soldering As the melting point of lead-free solder (Sn-Ag-Cu) is about 220 C which is higher than the conventional lead solder by 40C, and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the PWB for extended period of time. However, Since the land may be peeled off or the maximum heat-resistance temperature of parts may be exceeded, remove the bit from the PWB as soon as you confirm the steady soldering condition. Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it. When the tip of the soldering bit is blackened during use, file it with steel wool or fine sandpaper. Be careful when replacing parts with polarity indication on the PWB silk. Lead-free wire solder for servicing Ref No. Description Parts No. PWB-A 92LPWB6383MANS Main/Display PWB-B 92LPWB6383PWRS Power/Game Input PWB-C 92LPWB6230CDUS CD Servo PWB-D 92LPWB6291TUNS Tuner PWB-E 92LPWB6230LEDS LED