Sony HCD-GNZ55D Service Manual v1.1

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  1 Ver. 1.1 2006. 10 Model Name Using Similar MechanismHCD-GNZ7D/GNZ8D/GNZ9DDVDDVD Mechanism TypeCDM74HF-DVBU101//CSectionOptical Pick-up NameKHM-310CAB/C2NPTape DeckModel Name Using Similar MachanismNEWSection SERVICE MANUAL E Model  HCD-GNZ55D Amplifier section The following measured at AC 120, 127, 220, 240 V,50/60 HzDIN power output (rated)40 W + 40 W(4 ohms at 1 kHz, DIN)Continuous RMS power output (reference)60 W + 60 W(4 ohms at 1 kHz, 10%THD)InputsMIC (phone jack):Sensitivity 1 mV,impedance 10 kilohmsOutputsVIDEO OUT (phono jack):max. output level1 Vp-p, unbalanced, Syncnegative load impedance75 ohmsPHONES (stereo mini jack):Accepts headphones of 8 ohms or moreFRONT SPEAKER:Use only the supplied speakers SPECIFICATIONS Disc player section SystemCompact disc and digitalaudio and video systemLaserSemiconductor laser(DVD: λ =650 nm,CD: λ =790 nm)Emission duration:continuousFrequency responseDVD (PCM 48 kHz):2 Hz – 22 kHz (±1 dB)CD: 2 Hz – 20 kHz (±0.5 dB)Video color system formatLatin American model:NTSCOther models: NTSC, PAL Sony Corporation Home Audio DivisionPublished by Sony Techno Create Corporation 9-887-296-02 2006J04-1 © 2006. 10 – Continued on next page –  DVD DECK RECEIVER ãHCD-GNZ55D is the tuner,deck, DVD and amplifiersection in MHC-GNZ55D.  2  HCD-GNZ55D SAFETY-RELATED COMPONENT WARNING!!COMPONENTS IDENTIFIED BY MARK 0  OR DOTTED LINEWITH MARK 0  ON THE SCHEMATIC DIAGRAMS AND INTHE PARTS LIST ARE CRITICAL TO SAFE OPERATION.REPLACE THESE COMPONENTS WITH SONY PARTS WHOSEPART NUMBERS APPEAR AS SHOWN IN THIS MANUAL ORIN SUPPLEMENTS PUBLISHED BY SONY.Tape deck section Recording system4-track 2-channel stereoFrequency response50 – 13,000 Hz (±3 dB),using Sony TYPE I tape Tuner section FM stereo, FM/AM superheterodyne tuner FM tuner section Tuning range87.5 – 108.0 MHz(50-kHz step)AntennaFM lead antennaAntenna terminals75 ohm unbalancedIntermediate frequency10.7 MHz AM tuner section Tuning rangeSaudi Arabian model:531 – 1,602 kHz (with theinterval set at 9 kHz)Other models:531 – 1,602 kHz (with theinterval set at 9 kHz)530 – 1,710 kHz (with theinterval set at 10 kHz)AntennaAM loop antennaAntenna terminalsExternal antenna terminalIntermediate frequency450 kHz General Power requirementsSaudi Arabian model:120 – 127 V or 220 – 240 V AC,50/60 HzAdjustable with voltageselectorThai model:220 V AC, 50/60 HzOther models:120 V or 220 – 240 V AC,50/60 HzAdjustable with voltageselectorPower consumption45 wattsDimensions (w/h/d) (Approx.)280 ×  326 ×  385.5 mmMass (Approx.)6.4 kg  Design and specifications are subject to change without notice.  3  CAUTION Use of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure. HCD-GNZ55D NOTES ON HANDLING THE OPTICAL PICK-UP BLOCKOR BASE UNIT The laser diode in the optical pick-up block may suffer electrostaticbreakdown because of the potential difference generated by thecharged electrostatic load, etc. on clothing and the human body.During repair, pay attention to electrostatic break-down and alsouse the procedure in the printed matter which is included in therepair parts.The flexible board is easily damaged and should be handled withcare. Notes on Chip Component Replacement ãNever reuse a disconnected chip component.ãNotice that the minus side of a tantalum capacitor may bedamaged by heat. Flexible Circuit Board Repairing ãKeep the temperature of soldering iron around 270°C duringrepairing.ãDo not touch the soldering iron on the same conductor of thecircuit board (within 3 times).ãBe careful not to apply force on the conductor when solderingor unsoldering. UNLEADED SOLDER Boards requiring use of unleaded solder are printed with the leadfree 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.ãUnleaded solder melts at a temperature about 40 °C higher thanordinary solder.Ordinary soldering irons can be used but the iron tip has to beapplied to the solder joint for a slightly longer time.Soldering irons using a temperature regulator should be set to about350 °C.Caution: The printed pattern (copper foil) may peel away if theheated tip is applied for too long, so be careful!ãStrong viscosityUnleaded solder is more viscou-s (sticky, less prone to flow) thanordinary solder so use caution not to let solder bridges occur suchas on IC pins, etc.ãUsable with ordinary solderIt is best to use only unleaded solder but unleaded solder may alsobe added to ordinary solder.This appliance isclaassified as a CLASS 1LASER product. Thislabel is located on therear exterior. NOTES ON LASER DIODE EMISSION CHECK The laser beam on this model is concentrated so as to be focused onthe 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.Laser component in this product is capableof emitting radiation exceeding the limit forClass 1. Ver. 1.1 NOTE ON REPLACEMENT OF DMB15 BOARD New part of EEPROM (IC103) on the DMB15 board cannot beused. Therefore, if the mounted DMB15 board (A-1167-778-A, etc.)is replaced, exchange new EEPROM (IC103) with that used beforethe replacement.  4  HCD-GNZ55D MODEL IDENTIFICATION – BACK PANEL –  MODELPARTS No. E3, E15 models2-663-832-0 s EA model2-663-832-1 s MY, SP models2-663-832-2 s E12, E13 models2-663-832-3 s PH model2-663-832-5 s TH model2-663-832-6 s ãAbbreviationE3: 240 V AC area in E modelE12: 220-240 V AC area in E modelE13: 220-230 V AC area in E modelE15: Iran modelEA: Saudi arabia modelPH: Philippine modelSP: Singapore modelTH: Thai modelMY: Malaysia model PARTS No.
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