Jvc RXDV 31 SL Service Manual
This is the 66 pages manual for Jvc RXDV 31 SL Service Manual.
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Extracted text from Jvc RXDV 31 SL Service Manual (Ocr-read)
Page 1
1-2 (No.22023) SPECIFICATION Amplifier Output Power At Stereo operation Front channels 100 W per channel, min. RMS, driven into 8 Ω, 40 Hz to 20 kHz with no more than 0.8% total harmonic distortion. At Surround operation Front channels 100 W per channel, min. RMS, driven into 8 Ω at 1 kHz, with no more than 0.8% total harmonic distortion. Center channel 100 W, min. RMS, driven into 8 Ω at 1 kHz, with no more than 0.8% total harmonic distortion. Surround channels 100 W per channel, min. RMS, driven into 8 Ω at 1 kHz, with no more than 0.8% total harmonic distortion. Audio Audio Input Sensitivity/ Impedance (1 kHz)TV, TAPE/CDR, DBS, VCR 240 mV/47 kΩ Audio Input (DIGITAL IN)* Coaxial DIGITAL 1 (DBS) 0.5 V(p-p)/75 Ω Optical DIGITAL 2 (TV) -21 dBm to -15 dBm (660 nm ±30 nm) * Corresponding to Linear PCM, Dolby Digital, and DTS Digital Surround (with sampling frequency-32 kHz, 44.1 kHz, 48 kHz). Signal-to-Noise Ratio ('66 IHF/'78 IHF)TV, TAPE/CDR, DBS, VCR 87 dB/67 dB Frequency Response (8 Ω) TV, TAPE/CDR, DBS, VCR 20 Hz to 20 kHz (±1 dB) Tone Control Bass (100 Hz) ±10 dB ±2 dB Treble (10 kHz) ±10 dB ±2 dB Video Video Input Sensitivity/ Impedance (1 kHz)Composite videoDBS IN, VCR IN 1 V(p-p)/75 Ω S-video DBS IN, VCR IN (Y:luminance) 1 V(p-p)/75Ω (C:chrominance) 0.286 V(p-p)/75 Ω Video Output Level/Impedance (1 kHz)Composite videoVCR OUT, MONITOR OUT 1 V(p-p)/75 Ω S-video VCR OUT, MONITOR OUT(Y:luminance) 1 V(p-p)/75 Ω (C:chrominance) 0.286 V(p-p)/75 Ω Component videoDVD COMPONENT VIDEO OUT(Component-Y) 1.0 V(p-p)/75 Ω (Component-PB/PR) 0.7 V(p-p)/75 Ω Color System NTSC Horizontal Resolution500 lines Signal-to- Noise Ratio (S/N)63 dB Synchronize Negative FM tuner (IHF)Tuning Range 87.5 MHz to 108.0 MHz AM tuner Tuning Range 530 kHz to 1 710 kHz General Power RequirementsAC 120 V , 60 Hz Power Consumption200 W/255 VA (in operation) 2 W (in standby mode) Dimensions (W × H × D)435 mm × 100 mm × 403.5 mm (17 3/16 in. × 3 15/16 in. × 15 15/16 in.) Mass 8.4 kg (18.5 lbs)
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(No.22023)1-3 SECTION 1 PRECAUTION 1.1 Safety Precautions (1) This design of this product contains special hardware and many circuits and components specially for safety purpos- es. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Services should be per- formed by qualified personnel only. (2) Alterations of the design or circuitry of the product should not be made. Any design alterations of the product should not be made. Any design alterations or additions will void the manufacturers warranty and will further relieve the manufacture of responsibility for personal injury or property damage resulting therefrom. (3) Many electrical and mechanical parts in the products have special safety-related characteristics. These characteris- tics are often not evident from visual inspection nor can the protection afforded by them necessarily be obtained by us- ing replacement components rated for higher voltage, watt- age, etc. Replacement parts which have these special safety characteristics are identified in the Parts List of Ser- vice Manual. Electrical components having such features are identified by shading on the schematics and by ( ) on the Parts List in the Service Manual. The use of a substitute replacement which does not have the same safety charac- teristics as the recommended replacement parts shown in the Parts List of Service Manual may create shock, fire, or other hazards. (4) The leads in the products are routed and dressed with ties, clamps, tubings, barriers and the like to be separated from live parts, high temperature parts, moving parts and/or sharp edges for the prevention of electric shock and fire hazard. When service is required, the original lead routing and dress should be observed, and it should be confirmed that they have been returned to normal, after reassem- bling. (5) Leakage shock hazard testing After reassembling the product, always perform an isola- tion check on the exposed metal parts of the product (an- tenna terminals, knobs, metal cabinet, screw heads, headphone jack, control shafts, etc.) to be sure the product is safe to operate without danger of electrical shock.Do not use a line isolation transformer during this check. - Plug the AC line cord directly into the AC outlet. Using a "Leakage Current Tester", measure the leakage current from each exposed metal parts of the cabinet, particular- ly any exposed metal part having a return path to the chassis, to a known good earth ground. Any leakage cur- rent must not exceed 0.5mA AC (r.m.s.). - Alternate check method Plug the AC line cord directly into the AC outlet. Use an AC voltmeter having, 1,000Ω per volt or more sensitivity in the following manner. Connect a 1,500Ω 10W resistor paralleled by a 0.15µF AC-type capacitor between an ex- posed metal part and a known good earth ground. Measure the AC voltage across the resistor with the ACvoltmeter. Move the resistor connection to each exposed metal part, particularly any exposed metal part having a return path to the chassis, and measure the AC voltage across the resistor. Now, reverse the plug in the AC outlet and repeat each measurement. Voltage measured any must not exceed 0.75 V AC (r.m.s.). This corresponds to 0.5µ mA AC (r.m.s.). 1.2 Warning (1) This equipment has been designed and manufactured to meet international safety standards. (2) It is the legal responsibility of the repairer to ensure that these safety standards are maintained. (3) Repairs must be made in accordance with the relevant safety standards. (4) It is essential that safety critical components are replaced by approved parts. (5) If mains voltage selector is provided, check setting for local voltage. 1.3 Caution Burrs formed during molding may be left over on some parts of the chassis. Therefore, pay attention to such burrs in the case of pre- forming repair of this system. 1.4 Critical parts for safety In regard with component parts appearing on the silk-screen printed side (parts side) of the PWB diagrams, the parts that are printed over with black such as the resistor ( ), diode ( ) and ICP ( ) or identified by the " " mark nearby are critical for safety. When replacing them, be sure to use the parts of the same type and rating as specified by the manufacturer. (This regulation dose not Except the J and C version) Good earth ground Place this probe on each expose d metal part. AC VOLTMETER(Having 1000 ohms/volts, or more sensitivity) 1500 10W 0.15 F AC TYPE
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1-46 (No.22023)119 AD2 I AS: Full adder signal 120 AD3 I RF envelope input 121 AD4 I DVD laser current control terminal 122 AD5 I Tracking drive IC input offset 123 AD6 I CD laser current control terminal 124 TECAPA - Not connect. 125 VDD3 - Power supply (3.3V) 126 VSS - Ground 127~130 MONI0 - 3 O Internal goods title monitor (Connect to TP306 - TP309) 131 NEJECT I Eject detection 132 NTRYCTL I Tray close detection 133 NDASP I/O ATAPI drive active / Slave connection I/O 134 NCS3FX I ATAPI host chip select (Not connect.) 135 NCS1FX I ATAPI host chip select (Not connect.) 136 DA2 I/O ATAPI host address 137 DA0 I/O ATAPI host address (Not connect.) 138 NPDIAG I/O ATAPI slave master diagnosis input 139 DA1 I/O ATAPI host address (Not connect.) 140 NIOCS16 - ATAPI output of selection of host data bus width (Not connect.) 141 INTRQ O ATAPI host interruption output 142 NDMACK I ATAPI host DMA response (Not connect.) 143 VDD3 - Power supply (3.3V) 144 VSS - Ground 145 IORDI - ATAPI host ready output (Not connect.) 146 NIORD I ATAPI host read (Not connect.) 147 NIOWR I/O ATAPI host write 148 DMARQ - ATAPI host DMA request (Not connect.) 149~151 HDD15,HDD0,HDD14 I/O ATAPI host data 15,0,14 152 VDD18 - Power supply (1.8V) 153 PO - Connect to ground 154 UATASEL I Connect to VSS 155 VSS - Ground 156 VDD3 - Power supply (3.3V) 157~159 HDD1,HDD13,HDD2 I/O ATAPI data 1,13,2 160161 HDD12,HDD3 I/O ATAPI data 12,3 162 VDD3 - Power supply (3.3V) 163 VSS - Ground 164~166 HDD11,HDD4,HDD10 I/O ATAPI data 11,4,10 167168 HDD5,HDD9 I/O ATAPI data 5,9 169 VDD3 - Power supply (3.3V) 170 VSS - Ground 171~173 HDD6,HDD8,HDD7 I/O ATAPI data 6,8,7 174 VDDH - Reference power supply for ATAPI (5.0V) 175 NRESET I ATAPI host reset 176 MASTER I/O ATAPI master / Slave selection Pin No. Symbol I/O Function