Pioneer IS-21T, Service Manual

Page 1: ...CONTENTS 7 1 DIAGNOSIS 57 7 1 1 SEQUNCE AFTER THE POWER ON 57 7 1 2 SINGLE OPERATION METHOD 58 7 1 3 DISASSEMBLY 60 7 1 4 PCB LOCATION 64 7 2 PARTS 65 7 2 1 IC 65 8 PANEL FACILITIES AND SPECIFICATIONS 70 T ZZY MAY 1999 Printed in Japan THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL S AND TYPE S CD TUNER DECK Remarks Type Model XC IS21T Power Requirement ZUCXJ O DC power supply from other system ...

Page 2: ...EC IN L L2201 MPX L2801 BIAS OSC PB PB PB 6 5 1 3 Q2801 2SC1815 Q2802 2SC1815 BIAS Cro2 FS TS TS LD ON SL CN1301 SL SP SP VC IC1101 CXA1821M IC1201 CXD2587Q IC5501 PDG242A IC1301 BA5970FP D O FS SM CM CM TS TS TS FS FS TS FS FS SM FS FS TS TS SM SM CS CS T CN1101 CD L D OUT D OUT CD LD ON LCD_CE LCD_CLK LCD_DATA CN10 CN10 1 15 V 5UN V 5UN J101 V 5CDM V 5CDM GNDCDM V 5CD V 5CD F F T TFDR TRDR FFDR ...

Page 3: ... 5UN AC V 5 6U V 12M CN2 GNDS GNDS V 12UN V 12UN V 12UN 1 AC AC AC 3 V 5 6V V 5 6V V 5 6V 4 V 5UN 5 B2GND B2GND 6 B1GND B1GND 9 GNDU GNDU B2GND B1GND GNDU 10 V 5UN V IN VCC GND OPT OPT IN OUT V 5 OPT GND OPT TO STEREO PWER AMPLIFIER M IS21 VDD V 5 1 2 3 V 5 D O D O D O D O 7 9 8 3 2 6 7 9 8 10 3 2 6 6 7 9 12 6 7 9 12 1 2 8 9 7 8 9 1 7 LO2 4 5 2 7 10 5 7 18 8 16 9 17 23 3 4 8 10 SIGNAL ROUTE CD AUD...

Page 4: ...AWU7298 E F TERMINAL ASSY AWU7311 I CD ASSY AWU7305 CD MOTOR ASSY AWU7318 F G U COM ASSY AWU7327 C LCD ASSY AWU7354 D FM AM TUNER MODULE AXQ7065 TX CONNECT ASSY AWU7323 A B CN1 J101 J60 J60 CN110 CN10 CN80 CN90 CN1101 CN1301 J111 CN11 CN3 J103 CN7 J107 CN190 CN180 CN6201 CN161 ...

Page 5: ...OM ASSY AWU7327 C R TERMINAL ASSY AWU7315 H DECK ASSY AWU7334 J FRONT PANEL ASSY AWU7308 CD CLOSE SW ASSY AWU7320 K N CD OPEN SW ASSY AWU7319 LIGHT L ASSY AWU7321 M L CN5 CN105 CN32 CN132 CN131 CN31 CN2 J2201 J2202 CN2603 CN2701 CN20 CN2301 CN2302 J55 J155 J54 J154 CN150 CN50 CN51 J51 To STEREO POWER AMP M IS21 To OPTION DECK CN7102 CN7101 ...

Page 6: ... MODULE and TX CONNECT ASSYS A RF AMP 1T378A 1T378A MIX AMP BUFFER IF AMP FM B SW MW RF TUNING BLOCK AKX7041 OSC FM AM TUNER MODULE AXQ7065 AM SIGNAL ROUTE FM SIGNAL ROUTE TUNER AUDIO SIGNAL AM FM TX FM FM FM FM FM FM FM FM FM FM FM FM FM AM AM AM AM AM ...

Page 7: ...XC IS21T 21 A B C D 5 6 7 8 5 6 7 8 B A J60 CN6201 CN161 J60 D20PYY1315 TX CONNECT ASSY AWU7323 B C TX TX TX AF AMP REGULATOR PLL AF AMP FM FM FM AM AM ...

Page 8: ...XC IS21T 22 A B C D 1 2 3 4 1 2 3 4 3 4 U COM and LCD ASSYS LCD ASSY AWU7354 D U COM ASSY AWU7327 C J J2202 CN20 CN90 CN190 CN180 CN80 L5509 L5510 C D ...

Page 9: ...A B C D 5 6 7 8 5 6 7 8 E CN5 F CN110 CN10 CN105 B J60 K CN150 CN50 J60 SIGNAL ROUTE TUNER AUDIO SIGNAL TX TX TX LINE 2 MUTE LINE 1 MUTE LINE CONT L5506 L5504 L5505 L5504 L5506 L5508 L5544 5 6 IC5501 PDG242 L5507 C ...

Page 10: ... SIGNAL ROUTE CD AUDIO SIGNAL LINE 1 SIGNAL DECK PB SIGNAL LINE 2 SIGNAL MAIN OUT SIGNAL TUNER AUDIO SIGNAL LINE OUT 1 SIGNAL LINE OUT 2 SIGNAL LINE OUT SIGNAL RECORDING SIGNAL L1 CD PB L2 MO TX LO1 LO2 LO REC CD CD CD PB TX L1 L1 PB TX TX TX L1 TX L2 L2 L2 L1 L1 PB REC REC REC PB LO LO MO CN7 J107 E ...

Page 11: ...XC IS21T 25 A B C D 5 6 7 8 5 6 7 8 H CN132 H CN131 CN31 CN32 I J103 CN3 VTL1105 VTL1105 0 0 L2 L2 LO2 L1 L1 L1 LO1 LO1 LO1 LO1 LO MO MO MO MO S5688G S5688G 100 100 E ...

Page 12: ...ER H 500nsec div H 5msec div VC IC1101 Pin12 VC 1 0Vp p Note The encircled numbers denote measuring point in the schematic diagram VC SIGNAL ROUTE CD AUDIO SIGNAL ROUTE FOCUS SERVO LOOP LINE TRACKING SERVO LOOP LINE FS FS FS SM SM CM CM TS TS FS FS TS TS TS LM FS FS TS TS SM SM CS CS LM SM SM FS FS TS TS SPINDLE MOTOR ROUTE CARRIAGE MOTOR ROUTE LOADING MOTOR ROUTE SM LM CM CN1301 CN1101 F ...

Page 13: ...XC IS21T 27 A B C D 5 6 7 8 5 6 7 8 J101 CN110 CN11 J111 C CN10 CN1 E CD MOTOR ASSY AWU7318 G FS TS SM CM CM TS TS FS FS G F ...

Page 14: ...YS R TERMINAL ASSY AWU7315 H E CN31 E CN32 CN131 CN132 TO STEREO POWER AMPLIFIER M IS21 To OPTION DECK VTL1096 VTL1096 VTL1096 VTL1096 VTL1096 VTL1096 VTL1096 L1 L1 L1 LO1 LO1 MO MO MO SIGNAL ROUTE MAIN OUT SIGNAL LINE 1 SIGNAL LINE OUT1 SIGNAL L1 LO1 MO CN7102 CN7101 H ...

Page 15: ...XC IS21T 29 A B C D 1 2 3 4 1 2 3 4 F TERMINAL ASSY AWU7311 I E CN3 J103 L2 L2 LO2 LO2 LO2 L2 L2 SIGNAL ROUTE LINE2 SIGNAL LINE OUT2 SIGNA LO2 L2 I ...

Page 16: ...XC IS21T 30 A B C D 1 2 3 4 1 2 3 4 3 8 DECK ASSY DECK ASSY AWU7334 J SIGNAL ROUTE PB SIGNAL RECORDING SIGNAL REC PB PB PB PB PB PB REC REC REC REC CN2301 CN2302 J ...

Page 17: ...XC IS21T 31 A B C D 5 6 7 8 5 6 7 8 J2202 J2201 C CN20 E CN2 PB PB PB PB PB REC REC REC REC CN2603 CN2701 X J ...

Page 18: ... A B C D 1 2 3 4 1 2 3 4 3 9 FRONT PANEL LIGHT L CD OPEN SW and CD CLOSE SW ASSYS FRONT PANEL ASSY AWU7308 K LIGHT L ASSY AWU7321 L C CN50 CN150 CN51 J51 SLR 343VC NPQ TS DTC124EK TLB DTA143EK TLB DTC124EK TLB K L ...

Page 19: ... S5903 TIMER REC WAKE UP S5904 TAPE OPEN CLOSE S5905 TAPE S5906 LINE1 2 S5907 TUNING S5908 REC STOP S5909 TREBLE S5910 PLAY PAUSE S5911 ST WIDE S5912 BASS S5913 STOP S5914 BALANCE S5915 TUNER S5916 VOLUME JOG S5917 TUNING S5918 BALANCE S5919 CD S5920 STATION MEMORY S5921 FREQ STATION S5922 REVERSE S5923 DOLBY NR ON OFF FRONT PANEL ASSY SW name N M ...

Page 20: ...rts for several destinations For further information for respective destinations be sure to check with the schematic diagram 4 View point of PCB diagrams Symbol In PCB Diagrams Symbol In Schematic Diagrams Part Name B C E D D G G S S B C E B C E D G S B C E B C E B C E Transistor Transistor with resistor Field effect transistor Resistor array 3 terminal regulator Capacitor Connector P C Board Chip...

Page 21: ...inutes before adjustment In particular be sure to warm up the unit in the REC PLAY mode for 3 to 5 minutes before starting recording playback frequency characteristics adjustment 9 Always follow the indicated adjustment order Otherwise a complete adjustment may not be achieved 7 List of Adjustments Playback Section 1 Tape Speed Confirmation 2 Head Azimuth Adjustment 3 Playback Level Adjustment Rec...

Page 22: ...he LINE IN terminal L ch R ch VR2802 TP L C2203 TP R C2204 DECK ASSY 3 7 dBV Input signal level 23 7 dBV REC PLAY 2 Load the STD 632 test tape and record playback the 315Hz and 10kHz signals see the Note below Repeat adjustment until playback level of the 10kHz signal is within 0 5dBV 0 5dB from that of the 315Hz signal 2 Recording Level Adjustment VR2401 REC PAUSE 1 L ch R ch VR2402 TP L C2203 TP...

Page 23: ...E P28 VOLDATA P34 VOLCLK 4 Initial setting of CD decoder IC P17 CDCLK P18 CDLAT P19 CDDATA 5 Initialize the TUNER PLL IC P65 TXCE P66 TXODAT P67 TXCLK P68 TXIDAT Does the DECK Head down Is the MODE SW OFF MOTOR ON MOTOR OFF 500 msec solenoid is ON POWER ON Power is ON Transmit the bus data Close the CD door Initialize the DECK Function CD 4 Initial setting of CD decoder IC P22 CDCONT L Initialize ...

Page 24: ...requency level Gnd Remarks U COM ASSY CN105 pin8 AC 50 or 60 Hz Approx 2 0 Vrms Note AF ASSY W423 GND osc GND DC power supplay Connect point A Voltage V Remarks Low frequency oscillator DC power supplay V A Jigs and Measuring instruments Single operation method and frequnency oscilator inputlevel 1 Connect part A of the AF ASSY W420 8V W421 15V W422 5 6V W423 GND and DC power supplay Refer to Fig ...