Sony cdx gt 81 uw service manual

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2 CDX-GT81UW/GT860U If the optical pick-up block is defective, please replace the whole optical pick-up block. Never turn the semi-fixed resistor located at the side of optical pick- up block. CAUTION Use of controls or adjustments or performance of procedures other than those specified herein may result in hazardous radiation exposure. USB Player section Interface USB (Full-speed) Maximum current 500 mA Power amplifier section Outputs Speaker outputs (sure seal connectors) Speaker impedance 4 -“ 8 ohms Maximum power output52 W × 4 (at 4 ohms) General Outputs Audio outputs terminal (front/rear) Subwoofer output terminal (mono) Power antenna relay control terminal Power amplifier control terminal Inputs Telephone ATT control terminal Illumination control terminal B US control input terminal B US audio input terminal Remote controller input terminal Antenna input terminal A UX input jack (stereo mini jack) T one controls Low: ±10 dB at 60 Hz (XPLOD) Mid: ±10 dB at 1 kHz (XPLOD) High: ±10 dB at 10 kHz (XPLOD) Power requirements 12 V DC car battery (negative ground) Dimensions Approx. 178 × 50 × 190 mm (7 1/8 × 2 × 7 1/2 in.) (w/h/d) Mounting dimensions Approx. 182 × 53 × 163 mm (7 1/4 × 2 1/8 × 6 1/2 in.) (w/h/d) Mass Approx. 1.6 kg (3 lb. 9 oz.) Supplied accessories Card remote commander: CDX-GT81UW: RM-X152 CDX-GT860U: RM-X156 USB cap Parts for installation and connections (1 set) Design and specifications are subject to change without notice. US and foreign patents licensed from Dolby Laboratories. optical pick-up semi-fixed resistor NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electrostatic breakdown because of the potential difference generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic breakdown and also use the procedure in the printed matter which is included in the repair parts. The flexible board is easily damaged and should be handled with care. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pick- up block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens. SERVICE NOTES SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE P ART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.

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3 CDX-GT81UW/GT860U -UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the lead- free mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed withthe lead free mark due to their particular size.) : LEAD FREE MARK Unleaded solder has the following characteristics. -Unleaded solder melts at a temperature about 40°C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350°C. Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful! - Strong viscosity Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc. - Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder. This label is located on the bottom of the chassis. This compact disc player is classified as a CLASS 1 LASER product. The CLASS 1 LASER PRODUCT label is located on the exterior. - CDX-GT860U Notes on Chip Component Replacement -N ever reuse a disconnected chip component. - Notice that the minus side of a tantalum capacitor may be damaged by heat. TEST DISCS Please use the following test discs for the check on the CD section. YDES-18 (Part No. 3-702-101-01) PATD-012 (Part No. 4-225-203-01) - CD playback Y ou can play CD-DA (also containing CD TEXT*), CD-R/CD- RW (MP3/WMA/AAC files also containing Multi Session) and A TRAC CD (ATRAC3 and ATRAC3plus format). Type of discs Label on the disc CD-DA MP3 WMA AAC A TRAC CD *A CD TEXT disc is a CD-DA that includes information such as disc, artist and track name.