Denon AVC-a11SR (AVR-4802) Service Manual eng, Denon
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For U.S.A., Canada, Europe, Asia, China, Hong Kong, Korea & Taiwan R.O.C. model Hi-Fi Component SERVICE MANUAL MODEL AVR-4802 MODEL AVC-A11SR AV SURROUND RECEIVER / AMPLIFIER For AVR-4802 For AVC-A11SR Some illustrations using in this service manual are slightly different from the actual set. 14-14, AKASAKA 4-CHOME, MINATO-KU, TOKYO 107-8011 JAPAN Telephone: 03 (3584) 8111 X0120 1174 NC 0108 AVR-4802/AVC-A11SR SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. LEAKAGE CURRENT CHECK Before returning the unit to the customer, make sure you make either (1) a leakage current check or (2) a line to chassis resistance check. If the leakage current exceeds 0.5 milliamps, or if the resistance from chassis to either side of the power cord is less than 460 kohms, the unit is defective. SPECIFICATIONS Audio Section Power amplifier: Rated output: Stereo (2 ch driven) (All properties shown are only for the 125 W + 125 W (8 Ω /ohms, 20 Hz ~ 20 kHz with 0.05 % T.H.D.) Ω /ohms, 20 Hz ~ 20 kHz with 0.05 % T.H.D.) Dynamic power: 170 W × 2 ch (8 Ω /ohms) 270 W /ohms) 350 W × 2 ch (2 Ω /ohms) × 2 ch (4 Ω Output terminals: Front/Center: 6 ~ 16 Ω /ohms Surround: A or B 6 ~ 16 Ω /ohms A + B 8 ~ 16 Ω /ohms Analog: Input sensitivity/input impedance: Frequency response: 200 mV/47 k Ω /kohms − 3 dB (DIRECT mode) S/N: 105 dB (DIRECT mode) Distortion: 0.005 % (20 Hz ~ 20 kHz) (DIRECT mode) Rated output/maximum output: 1.2 V/8 V Digital: D/A output: 2 V (at 0 dB playback) Total harmonic distortion 0.005 % (1 kHz, at 0 dB) S/N ratio 110 dB Dynamic range 108 dB Digital input: Format Digital audio interface Phono equalizer (PHONO input REC OUT): Input sensitivity: 2.5 mV RIAA deviation: ± 1 dB (20 Hz to 20 kHz) Signal-to-noise ratio: 74 dB (A weighting, with 5 mV input) Rated output/Maximum output: 150 mV/8V Distortion factor: 0.03 % (1 kHz, 3 V) Video Section Standard video jacks Input/output level and impedance: 1 Vp-p, 75 Ω /ohms +0, − 3 dB S-video jacks Input/output level and impedance: Y (brightness) signal 1 Vp-p, 75 Ω /ohms C (color) signal 0.286 Vp-p, 75 Ω /ohms Frequency response: 5 Hz ~ 10 MHz +0, − 3 dB Color component video terminal: Input/output level and impedance: /ohms P B /C B (blue) signal 0.7 Vp-p, 75 Ω /ohms P R /C R (red) signal 1 Vp-p, 75 Ω 0.7 Vp-p, 75 Ω /ohms Frequency response: DC ~ 50 MHz +0, − 3 dB Tuner Section [FM] (note: µ V at 75 Ω /ohms, 0 dBf = 1 × 10 -15 W) [AM] Receiving range: 87.5 MHz ~ 107.9 MHz 520 kHz ~ 1710 kHz Usable sensitivity: 1.0 µ V (11.2 dBf) 18 µ V 50 dB Quieting sensitivity: MONO 1.6 µ V (15.3 dBf) STEREO 23 µ V (38.5 dBf) Signal to Noise Ratio (IHF-A): MONO 77 dB 50 dB STEREO 72 dB Total Harmonic Distortion (at 1 kHz): MONO 0.15 % STEREO 0.3 % Genera Power supply: AC 120 V, 60 Hz (U.S.A., Canada & Taiwan R.O.C. model) AC 230 V, 50 Hz (Europe & Asia model) AC 220 V, 50 Hz (China model) Power consumption: 10.5 A (U.S.A., & Canada model) Maximum external dimensions: 434 (W) × 179 (H) × 485 (D) mm (17-3/32 ″ × 7-3/64 ″ × 19-3/32 ″ ) Mass: 20.5 kg (45 lbs 3.1 oz) Remote Control Unit (RC-8000): AVR Model only Batteries: LR6/AA Type (four batteries) × 38 (H) × 168.5 (D) mm (3-25/32 ″ × 1-1/2 ″ × 6-41/64 ″ ) Mass: 242 g (Approx. 8.5 oz) (not including batteries) Remote Control Unit (RC-899): AVC Model only Batteries: R6P/AA Type (three batteries) External dimensions: 61 (W) × 230 (H) × 34 (D) mm (2-13/32 ″ × 9-1/16 ″ × 1-11/32 ″ ) Mass: 150 g (Approx. 5.3 oz) (not including batteries) * For purposes of improvement, specifications and design are subject to change without notice. 2 power amplifer stage.) 150 W + 150 W (6 10 Hz ~ 100 kHz: +0, Rated output Frequency response: 5 Hz ~ 10 MHz Y (brightness) signal External dimensions: 96 (W) AVR-4802/AVC-A11SR CAUTION IN SERVICING When you have replaced the 1U-3291 Unit, or changed the CPU, DSP, or their peripheral parts, be sure to perform “RESET” by pressing S803 on the DSP Unit Ass’y in the state of Standby or Power-on. WIRE ARRANGEMENT If wire bundles are untied or moved to perform adjustment or parts replacement etc.,be sure to rearrange them neatly as they were originally bundled or placed afterward. Otherwise, incorrect arrangement can be a cause of noise generation. Wire arrangement viewed from the top Front Panel side Back Panel side 3 AVR-4802/AVC-A11SR Wire arrangement viewed from the bottom Front Panel side Back Panel side 4 AVR-4802/AVC-A11SR DISASSEMBLY (Follow the procedure below in reverse order when reassembling) Top Cover (1) Remove 9 screws 1 on both sides and on the top. (2) Remove 4 screws 2 on the rear and detach the Top Cover by sliding to the arrow direction. Top Cover 1 2 1 2 1 1 Front Panel (1) Remove 11 screws 3 and detach the Bottom Cover. (2) Remove the screw 4 , 7 screws 5 . (3) Disconnect FFC wire from its connector, and detach the Front Panel in the arrow direction. 5 3 5 4 Front Panel FFC Wire 5 5 [ Pobierz całość w formacie PDF ] |