Pioneer-A207R-int-sm维修电路原理图.pdf

ORDER NO. RRV1912 T - IZK APR. 1998 Printed in Japan PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS SERVICE, INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER ELECTRONIC (EUROPE) N.V. Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 501 Orchard Road, #10-00 Lane Crawford Place, Singapore 0923 PIONEER ELECTRONIC CORPORATION 1998c 1. SAFETY INFORMATION . 2 2. EXPLODED VIEWS AND PARTS LIST. 3 3. SCHEMATIC DIAGRAM . 6 4. PCB CONNECTION DIAGRAM. 14 5. PCB PARTS LIST . 22 6. ADJUSTMENT . 25 CONTENTS 7. GENERAL INFORMATION . 26 7.1 IC . 26 7.2 DISASSEMBLY . 27 7.3 BLOCK DIAGRAM. 28 8. PANEL FACILITIES AND SPECIFICATIONS . 29 A-307R STEREO AMPLIFIER A-207R THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S). PHONES A SPEAKERS B OFFON STEREO AMPLIFIERDirect Energy MOS TAPE 1 /MD TAPE 2 MONITOR LINETUNERPHONOCD BASS + TREBLE + VOLUME MINMAX LOUDNESSDIRECT BALANCE RL INPUT SELECTOR TAPE 2 MONITOR POWER Type Model Power Requirement A-307RA-207R MYXJ/EWAC220-230V MYXJ/GRAC220-230V MVXJAC220-230V SAMXJAC110V/120-127V/220V/240VWith the voltage selector SDXJAC110V/120-127V/220V/240VWith the voltage selector The voltage can be converted by the following method. The illustration shows the A-307R. RadioFans.CN 收音机爱 好者资料库 2 A-307R, A-207R 1. SAFETY INFORMATION This service manual is intended for qualified service technicians ; it is not meant for the casual do-it- yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician. WARNING Lead in solder used in this product is listed by the California Health and Welfare agency as a known reproductive toxicant which may cause birth defects or other reproductive harm (California Health when turned to the left, high- frequency tones are de-emphasized. NOTE: This control does not operate when the DIRECT button is in the on position. 0BASS tone control Use to adjust the low-frequency tone. The center position is the flat (normal) position. When turned to the right, low-frequency tones are emphasized; when turned to the left, low-frequency tones are de-emphasized. NOTE: This control does not operate when the DIRECT button is in the on position. -SPEAKERS B (ON/OFF) button/indicator Use this button to listen to the speaker system connected to SPEAKERS B terminals. ON: The indicator lights. Sound is heard from the speaker system. OFF : The indicator goes off. No sound is heard from the speaker system. Set to this position when listening with headphones. =PHONES jack When using headphones, insert the plug into this jack. NOTE: The speakers continue to output sound even when headphones are plugged into this jack. To mute the sound from the speakers, press the SPEAKERS button to OFF. SPEAKERS A (ON/OFF) button/indicator Use this button to listen to the speaker system connected to SPEAKERS A terminals. ON: The indicator lights. Sound is heard from the speaker system. OFF : The indicator goes off. No sound is heard from the speaker system. Set to this position when listening with headphones. RadioFans.CN 收音机爱 好者资料库 32 A-307R, A-207R 1CD POWER button Switches CD player power STANDBY/ON. 2TAPE SELECT button Selects the cassette No. (1 to 6) for multi-cassette changer. 3DECK II button To operate Deck II, press this button before pressing the operating buttons. Also, when using a single deck, press this button before pressing the operating buttons. 4DECK I button To operate Deck I, press this button before pressing the operating buttons. 5DISC SELECT button Press this to select discs on a multi or twin tray compact disc player. 6Input selector button Use to select the playback source. CD: For compact disc playback with a CD player. TUNER : For AM or FM broadcast reception with a tuner. PHONO : For record playback with a turntable. TAPE 1 : For playback with a cassette deck or MD deck recorder connected to TAPE 1/MD terminals. TAPE 2 : For playback with a cassette deck or adaptor connected to TAPE 2 MONITOR terminals. LINE: For playback with a component connected to the LINE terminal. 7TUNER POWER button Switches TUNER power STANDBY/ON. 8TAPE POWER button Switches the cassette deck power STANDBY/ON. (Can not turn ON/OFF some cassette decks.) 9TAPE operation buttons 2, 3: Playback in the direction of the arrows. 7: Stop 1, : Tape fast forward/reverse. 0CD player operation buttons 4: Returns you to the start of the current track. (Track search) : Takes you to the start of the next track. (Track search) 7: Stop 3: Play -STATION + (up), (down) buttons Calls each station number in sequence. =VOLUME + (up), (down) buttons + . Increases the volume. . Decreases the volume. NOTE: When the accessory remote control unit is used to operate other Pioneer components with the mark, it cannot be used to operate functions which do not correspond to the functions listed on the remote control unit. STEREO AMPLIFIER REMOTE CONTROL UNIT CDTUNERTAPE TAPE SELECT DECK DECK TAPE CD DISC SELECTSTATION TUNER STANDBY/ON CDTUNERPHONO VOLUME TAPE 1TAPE 2LINE + + REMOTE CONTROL RadioFans.CN 收音机爱 好者资料库 33 A-307R, A-207R Amplifier Section Continuous power output (both channels driven at 20 Hz to 20 kHz) A-307R T.H.D. 0.1 %, 8 . 45 W + 45 W T.H.D. 0.15 %, 4 . 65 W + 65 W A-207R T.H.D. 0.1 %, 8 . 35 W + 35 W T.H.D. 0.15 %, 4 . 45 W + 45 W DIN Continuous power output (both channels driven at 1 kHz) A-307R T.H.D. 1.0 %, 8 . 55 W + 55 W T.H.D. 1.0 %, 4 . 80 W + 80 W A-207R T.H.D. 1.0 %, 8 . 45 W + 45 W T.H.D. 1.0 %, 4 . 60 W + 60 W Total harmonic distortion A-307R 20 Hz to 20 kHz, 22.5 W, 8 . 0.08 % A-207R 20 Hz to 20 kHz, 17.5 W, 8 . 0.08 % Power output specification is for when power supply is 230V. Input sensitivity/impedance PHONO (MM) . 2.8 mV/50 k CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR . 200 mV/50 k PHONO (MM) overload level 1 kHz, T.H.D. 0.1 %. 150 mV Output level/impedance TAPE 1 REC, TAPE 2 MONITOR REC. 200 mV/1 k Frequency response PHONO (MM) . 20 Hz to 20 kHz, 0.5 dB CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR . 5 Hz to 100 kHz, +0 3 dB Tone control BASS . 8 dB (100 Hz) TREBLE. 8 dB (10 kHz) Loudness contour (volume control set at 30 dB position) . +6 dB (100 Hz)/+4 dB (10 kHz) Signal-to-Noise ratio (IHF short circuit, A network) PHONO (MM, 5 mV input). 85 dB CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR . 106 dB Signal-to-Noise ratio (DIN, continuous power/50 mW) PHONO (MM) .71 dB/67 dB CD, TUNER, LINE, TAPE 1/MD, TAPE 2 MONITOR . 91 dB/71 dB Power Supply/Miscellaneous Power requirements . AC 220 230 V, 50/60 Hz Power consumption A-307R . 140 W A-207R . 130 W Dimensions (including knobs and other protruding parts) . 420 (W) x 114 (H) x 307 (D) mm Weight (without package) A-307R .5.9 kg A-207R .4.7 kg Accessories Remote control unit . 1 Batteries (AA/R6P). 2 Power cord (Rated current 2.5 A) .1 Operating instructions .1 Warranty card .1 NOTE: Specifications and design are subject to possible modifica- tions without notice, due to improvements. Measured with DIRECT button set to on. Measured by Audio Spectrum Analyzer. 8.2 SPECIFICATIONS RadioFans.CN 收音机爱 好者资料库