User manual PIONEER A-207R service manual

[. . . ] Also, when soldering do not inhale any smoke or fumes produced. NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or be of identical designation. (slow operating fuse) on PCB indicate that replacement parts must REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou de remplacement doivent avoir la même désignation. (fusible de type lent) sur CCI indiquent que les pièces (FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS The following check should be performed for the continued protection of the customer and service technician. ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER. LEAKAGE CURRENT CHECK Measure leakage current to a known earth ground (water pipe, conduit, etc. ) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc. ). Plug the AC line cord of the appliance directly into a 120V AC 60Hz outlet and turn the AC power switch on. PRODUCT SAFETY NOTICE Many electrical and mechanical parts in the appliance have special safety related characteristics. [. . . ] ADJUSTMENT 6. 1 IDLE CURRENT ADJUSTMENT ¶ CAUTION : Heatsinks' (Q323­Q326) DC level is equal to +B or -B. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 10mV ± 1mV. Adjust VR301 (VR302) so that the voltage between both sides of R373 (R374) becomes 11mV ± 1mV. DC Voltmeter DC Voltmeter AF ASSY SIDE A R373 R375 R374 R376 Heat Sink Heat Sink VR301 VR302 Heat Sink Heat Sink CN202 Fig. 6-1 Adjustment Method 25 A-307R, A-207R 7. GENERAL INFORMATION 7. 1 IC 7 PD5443A (FRONT R ASSY : IC601) ¶ REMOTE CONTROL AMP MICROCOMPUTER ¶ Pin Assignment (Top view) P53 P17/SRDY P16/CLK P15/SOUT P14/SIN P13/T1 P12/T0 P11 P10 P27/IN7 P26/IN6 P25/IN5 P24/IN4 P23/IN3 P22/IN2 P21/IN1 P20/IN0 VREF XIN XOUT VSS 1 SR 2 STB 3 CLK 4 DATA 5 CD-IND 6 TU-IND 7 PH-IND 8 LI-IND 9 T1-IND 10 SPA-IND 11 SPB-IND 12 LOU-IND 13 NC 14 NC 15 DIR-IND 16 T2-IND 17 F-MUTE 18 VREF 19 XIN 20 XOUT 21 VSS · The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. T2 42 NC 41 LOUD 40 M-CTRL 39 P-DET 38 P-CTRL 37 DIRECT 36 NC 35 WAKE UP 34 FUNC2 33 FUNC1 32 V-UP 31 V-DOWN 30 RSEL2 29 RSEL1 28 NC 27 BACK UP 26 RST 25 SPA 24 SPB 23 VCC 22 P52 P07 P06 P05 P04 P03 P02 P01 P00 P43 P42 P41 P40 P33/CNTR1 P32/CNTR0 P31/INT1 P30/INT0 RESET P51/XCOUT P50/XCIN VCC ¶ Pin Function No. 42 P52 I TAPE2 KEY input. 26 A-307R, A-207R 7. 2 DISASSEMBLY 1 1 1 ×2 1 1 ×2 10 3 1 2 1 Front Panel 5 5 13 Diagnose the AF Assy. : Be careful not to injure the Front Panel. 11 3 4 ×2 5 ×5 2 Rear Panel Chassis 6 6 6 8 Unhook lead wires. Rear Panel 7 For Service 7 ×3 Chassis 12 Screw for Rear Panel PCB Support 7 ×2 9 ×3 Cutting Pliers 27 28 RIAA ON/OFF D A FUNCTION LOUDNESS Q505 Q501 Q503 DIRECT ON/OFF IC151 2. 8mV /50k PHONO DIRECT ENERGY MOS 37dB TUNER A A VOLUME CD A-307R, A-207R 200mV /50k D A Q509 IC101 LINE 7. 3 BLOCK DIAGRAM TAPE1 /MD Q303 TONE AND BALANCE M VR501 A D UNUSUAL OUTPUT DETECTION Q507 POWER AMP WRLC 39dB PROTECTION RY D 401 RY401 SP-A D RY402 SP-B RY403 H. P B JA501 FUNC MUTE 200mV /1k REC Q337-Q340 UP/DOWN D E F IC751 VR751 VR752 VR601 200mV TAPE2 /50k MONITOR 200mV /1k REC D +BL TO POWER STAGE ­BL +6 CN101 CN102 FROM UNUSUAL OUTPUT DETECTION TO FUNCTION SW D D451 KEY INPUTS VOLUME UP/DOWN DIRECT, LOUDNESS ON/OFF TO µ-COM LED D TO OP AMP RY IC453 IC451 IC452 +19 ­15 µ-COM FUNC MUTE ON/OFF FROM FUNCTION SEL F IC601 D +BH TO VOLTAGE STAGE TO PROTECTION RY ­BH C REGULATOR C T1 S801 FU1 SR INPUT D D454 D455 A-307R, A-207R 8. PANEL FACILITIES AND SPECIFICATIONS 8. 1 PANEL FACILITIES REAR PANEL SPEAKERS R B L SIGNAL GND PHONO TUNER CD LINE TAPE 1/MD REC PLAY TAPE 2 MONITOR AC INLET REC PLAY L R IN IN IN IN OUT IN OUT IN L R R CONTROL OUT A L 1 GND (Turntable ground) terminal 2 PHONO terminals 3 TUNER terminals 4 CD terminals 5 LINE terminals 6 TAPE 1/MD REC (OUT) terminals 7 TAPE 1/MD PLAY (IN) terminals 8 TAPE 2 MONITOR REC (OUT) terminals 9 TAPE 2 MONITOR PLAY (IN) terminals 0 SPEAKERS B terminals (Right channel) - SPEAKERS B terminals (Left channel) = SPEAKERS A terminals (Right channel) ~ SPEAKERS A terminals (Left channel) !CONTROL OUT jack This jack is for output of control signals when operating other components bearing the Î mark with the attached remote control unit. @ AC INLET jack Connect power cord to here and an AC wall socket, or the AC outlet of an audio timer. If you are going to be away from home for a long period of time, disconnect the unit from the wall socket. NOTES: If you use an other power cord than provided, we cannot assume the liabilities in what may occur as a result of it. (The provided power cord has a current capacity of 2. 5 A. ) 29 A-307R, A-207R FRONT PANEL VOLUME STEREO AMPLIFIER POWER CD TUNER PHONO LINE TAPE 1 /MD TAPE 2 MONITOR A SPEAKERS B BASS TREBLE BALANCE INPUT SELECTOR PHONES LOUDNESS DIRECT TAPE 2 MONITOR ­ + ­ + MIN MAX L R The illustration shows the A-307R. 1 POWER (-- OFF/_ ON) switch Press to turn power to the unit ON and OFF. This unit cannot be turned ON and OFF using the remote control unit. 5 TAPE 2 MONITOR button/indicator Use when there is an adaptor component (graphic equalizer, etc. ) or cassette deck connected to the TAPE 2 MONITOR terminals. On : Indicator lights when using the adaptor component or listening to the cassette deck. Off : Indicator goes off when not in use. 2 REMOTE CONTROL SENSOR window 3 VOLUME control Use to adjust the volume level. NOTES: ÷ When no connections are made to the TAPE 2 MONITOR terminals, or when they are not in use, be sure to set this switch to the off position. (No sound will be heard if it is set to the on position. ) ÷ When the TAPE 2 MONITOR indicator is on and the INPUT SELECTOR knob is not set to TAPE 1/MD, the signals which are input through TAPE 2 MONITOR are then output at TAPE 1/MD REC OUT. 4 INPUT SELECTOR knob/indicators Turn the knob clockwise or counterclockwise so that the indicator lights for your desired input source. LINE : Set to this position when listening to the program from a component connected to the LINE terminals. TAPE 1/MD : For playback with a cassette deck or MD recorder connected to TAPE 1/MD terminals. 6 BALANCE control Should normally be left in the center position. If the right side is louder, turn toward the L (left) position and if the left side is louder, turn toward the R (right) position. NOTE: This control does not operate when the DIRECT button is in the on position. 30 A-307R, A-207R 7 DIRECT button/indicator Use this button when you do not wish to pass the output from input terminal equipment through the various frequency adjusting circuits (BASS, TREBLE, BALANCE, LOUDNESS). On : The indicator lights: The signals passing through the input terminals are reproduced without passing through the various frequency adjusting circuits. This results in flat, pure sound which is a more faithful reproduction of the input source. Off : The indicator goes off: The signal passes through the various frequency adjusting circuits. 0 BASS tone control Use to adjust the low-frequency tone. 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. Set to this position when listening with headphones. 8 LOUDNESS button/indicator Use when listening at low volume levels. [. . . ] 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 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]