Pioneer VSX 108 - AV Receiver Service Manual Download Page 12 | Manualshive

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VSX-108

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: The power supply is shown with the marked box.

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MAIN PCB

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3.4 MAIN (2/2) and PHONE PCBS

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Summary of Contents for VSX 108 - AV Receiver

Page 1: ...159936 PIONEER CORPORATION 1999 c VSX 108 RRV2146 T IZE OCT 1999 Printed in Japan Type Model Power Requirement Remarks VSX 108 KUXCN AC120V THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL S AND TYPE S AUDIO MULTI CHANNEL RECEIVER 1 SAFETY INFORMATION 2 2 EXPLODED VIEWS AND PARTS LIST 3 3 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 6 4 PCB CONNECTION DIAGRAM 17 5 PCB PARTS LIST 22 6 ADJUSTMENT 24 CONTENTS...

Page 2: ... evident from visual inspection nor the protection afforded by them necessarily can be obtained by using replacement components rated for voltage wattage etc Replacement parts which have these special safety characteristics are identified in this Service Manual Electrical components having such features are identified by marking with a on the schematics and on the parts list in this Service Manual...

Page 3: ...lacing be sure to use parts of identical designation Screws adjacent to mark on the product are used for disassembly 1 AM Loop Antenna 01582100001S 2 FM Antenna 06410001003S 3 Operating Instructions 152010801297 English 4 Polyform L 14901081000S 5 Polyform R 14901082000S 6 Remote Control Unit 18201080001S 7 Carton Box 153010820297 8 Poly Bag 4 20 15004011210S 9 Poly Bag 10 15 15010015510S 10 Poly ...

Page 4: ...5 25 20 5 27 29 3 25 Bottom Cover 25 25 25 25 25 22 22 25 18 19 19 17 19 7 25 25 25 25 25 25 25 6 14 15 12 13 11 10 30 9 24 26 26 25 25 34 25 25 25 2 28 25 33 25 25 32 28 28 23 25 25 25 25 25 21 1 25 25 26 26 2 2 EXTERIOR ...

Page 5: ...1010S 12 Front Panel 10801080010S 13 Front Cabinet 10101080001AS 14 Power Button 12801080001S 15 Function Button 12801082001S 16 17 Mounting Bracket A 12901089000S 18 Mounting Bracket B 12901089100S 19 PCB Holder 13001082000S 20 Mounting Holder 13301082310S 21 PCB Mounting Bracket 13301083310S 22 Insullator 13821007010S 23 Top Cover 18001083010S 24 Rear Cover 18001085101S 25 Screw BBZ30P080FZK 26 ...

Page 6: ...8 9 10 11 12 13 TUNER L R 9 34 L R 8 35 L R 10 1 40 3 61 74 9 50 53 17 3 12 6 27 30 17 16 75 51 62 33 L L R R 39 4 24 21 31 33 26 17 L R L C S R L R L TONE OUT SEL OUT IN OUT CV SV OUT R 23 20 L R DATA CLK E1 DATA CLK E2 DGND MUTE OVER SP OFF RELAY 2 CH DC O AC3 8V 25V 5V GND SR GND AC3 8V Q703 Q704 5V 1 2 FM SIG GND L R TV L R VCR IN L R VCR OUT CONTROL OUT IC203 00262419 010 M62419 Digital Sound...

Page 7: ...Jack 7 SUB WOOFER Jack 5 2 10 6 14 7 10 6 14 7 IC202 00206458 040 LA6458S Dual Operational Amp IC205 STK407 070 2ch AF Power Amp IC204 STK407 070 2ch AF Power Amp MUTING Q209 Q211 D802 5V 9V B B 25V 9V D803 J6 W1 W2 W3 W4 J5 J7 Q802 Q803 Q801 Q804 RY4 PS1 POWER F801 4A 250V C823 0 01 250V R821 120 1W RY3 RY2 RY1 RELAY DRIVER AC 3 8V REG REG REG 02041100 004 05005020402S NOTE FOR FUSE REPLACEMENT F...

Page 8: ...SVC201SPA Q103 00300608 045 2SA608 D101 00400321 500 SVC321 BPS101 02876108 002 TC101 01410200 003 CF102 02810700 009 Q106 00302999 044 2SC2999 Q107 00302999 044 2SC2999 Q104 00300536 046 2SC536 Q102 00302999 044 2SC2999 CF101 02810700 009 Q105 00302999 044 2SC2999 1 2 3 4 5 6 7 8 9 AM 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 FM 0 9 1 5 4 8 0 0 0 0 4 8 0 0 4 0 4 8 IC101 volt AM AM AM AM AM FM FM FM FM ...

Page 9: ...7 8 9 AM 3 8 13 0 3 8 3 8 0 0 5 1 5 1 13 0 2 3 FM 3 8 13 0 3 8 3 8 0 0 4 9 4 9 13 0 2 3 IC102 10 11 1 6 0 0 1 6 0 4 12 13 0 0 0 0 0 0 0 0 14 15 8 0 12 0 12 0 12 0 16 17 18 19 20 21 22 23 24 AM 4 5 4 5 4 5 4 5 3 5 3 5 2 8 0 0 0 6 FM 4 5 4 5 4 5 4 5 3 5 3 5 2 8 3 0 0 0 25 26 0 5 3 8 0 0 4 2 27 28 3 8 3 8 4 0 3 8 29 30 3 8 2 0 3 8 2 2 TUNER AUDIO SIGNAL ROUTE L ch AM SIGNAL ROUTE AM T FM SIGNAL ROUTE...

Page 10: ...VSX 108 10 A B C D 1 2 3 4 1 2 3 4 CN102 A JACK4 JACK3 JACK2 IN OUT JACK1 VCR CN201 IC203 00262419 010 M62419 IC201 00201041 040 LV1041M 05208000 000 S C T T B 1 2 MAIN PCB 1 2 B 3 3 MAIN PCB 1 2 ...

Page 11: ...76 040 Q201 00302576 040 Q212 00310536 046 L201 01500030 006 L202 01500030 006 04610400 006 04620800 001 L203 01500030 006 L204 01500030 006 Q210 Q205 Q211 00310536 046 Q209 Q211 Q208 Q207 Q206 Q205 D212 00494001 300 D211 00494001 300 D209 00494001 300 B 2 2 AUDIO SIGNAL ROUTE L ch AUDIO SIGNAL ROUTE Center C AUDIO SIGNAL ROUTE Surround S S S S S S S S S C C C C C C C C C The power supply is shown...

Page 12: ...VSX 108 12 A B C D 1 2 3 4 1 2 3 4 B 1 2 The power supply is shown with the marked box B 2 2 MAIN PCB 2 2 B 3 4 MAIN 2 2 and PHONE PCBS ...

Page 13: ...VSX 108 13 A B C D 5 6 7 8 5 6 7 8 2 2 B B 1 2 CN207 CN208 CN207A CN14 D CN208A D 1 R 2 L 3 GND R320 330 2W R321 330 2W CN14A JACK8 PHONES 4 L SP 5 R ST 6 SP OFF PHONE PCB C AUDIO SIGNAL ROUTE L ch C ...

Page 14: ...VSX 108 14 A B C D 1 2 3 4 1 2 3 4 DISPLAY PCB G G 3 5 DISPLAY PCB ...

Page 15: ...MODE SW2 MEMORY SW3 LEVEL SW4 TEST MODE SW5 CENTER REAR SW10 DOLBY PRO LOGIC SW11 SFC MODE SW12 LEVEL SW13 TV SW14 CD SW15 AM SW16 VCR SW17 STEREO SW18 LOUDNESS SW19 STATION SW20 TUNING SW21 FM SW22 BASS SW23 TREBLE SW26 STATION SW27 TUNING SW29 BASS SW30 TREBLE SW31 BALANCE L SW32 BALANCE R G ...

Page 16: ... 0 0 0 0 5 5 5 5 5 45 0 0 0 0 6 5 0 5 1 46 0 0 0 0 7 5 4 5 6 47 0 0 0 0 8 5 4 5 6 48 0 0 0 0 9 0 0 0 0 49 5 0 5 0 10 0 0 0 0 50 5 0 5 0 11 0 0 0 0 51 5 0 5 0 12 5 0 5 0 52 5 0 5 0 13 5 0 5 0 53 5 0 5 0 14 0 5 0 2 54 0 0 0 0 15 0 0 5 0 55 0 7 0 7 16 0 0 5 0 56 0 0 0 0 17 5 0 5 0 57 12 0 12 0 18 4 4 4 6 58 12 0 12 0 19 0 0 0 0 59 0 0 0 0 20 0 0 0 0 60 0 0 0 0 21 0 0 0 0 61 0 0 0 0 22 0 0 0 0 62 0 0 ...

Page 17: ...formation 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 Part SIDE A SIDE B SIDE A Q102 Q101 Q103 Q...

Page 18: ... 108 18 A B C D 1 2 3 4 1 2 3 4 Q212 Q213 Q209 Q211 Q203 Q204 Q205 Q201 Q202 IC205 Q207 IC204 IC208 IC203 Q206 IC201 Q208 Q402 Q401 IC202 Q801 Q804 MAIN PCB B CN207A D J7 J5 J6 D B 4 2 MAIN and PHONE PCBS ...

Page 19: ...VSX 108 19 A B C D 5 6 7 8 5 6 7 8 SIDE A PHONE PCB C CN102 A CN707 G PHONES CN706 G C B ...

Page 20: ... Q704 IC703 DISP1 V1 IC702 J751 J704 J706 J705 R717 J709 C724 C722 C723 C711 C712 C713 SW15 SW21 J707 D704 C721 C725 D702 R710 J702 SW5 LEVEL LEVEL VC AM FM RECEIVER CENTER REAR SIDE A Q703 Q704 IC703 IC702 AC O P PCB D AC I P PCB E PW SW PCB F DISPLAY PCB G CN208 B CN207 B T1 POWER TRANSFORMER AC IN R820 CASE GND LIVE NEUTRAL D E F G 4 3 AC O P AC I P PW SW and DISPLAY PCBS ...

Page 21: ...1 C713 C714 Q711 Q714 SW10 SW17 SW18 Q712 Q713 CN707 CN706 C726 C741 C710 J741 J742 C705 C708 Q702 Q701 C704 C702 C717 C701 SW32 SW31 SW30 SW29 SW22 SW29 SW16 SW15 J747 J731 J727 J726 J725 J724 J732 J728 J729 J730 J754 FM S GND J737 J738 J752 J733 IC701 SW11 D714 J743 R714 R702 R701 R E S1 GND IF AO EO ST SD AM FM GND MONO IF REQ C732 C703 J734 J780 L701 R711 R712 R713 LED701 LED702 LED703 D704 72...

Page 22: ...045 Q101 00300715 041 Q801 00301134 049 Q803 00301667 048 Q102 Q105 Q107 00302999 044 Q201 Q204 00303576 040 Q802 00304485 049 Q205 Q213 00310536 046 Q714 DTA114ES Q703 DTA143ES Q704 DTC143ES D802 00400004 300 D803 00400040 301 D101 D102 00400321 500 D209 D211 D212 00494001 300 D7010 D7020 D7030 01912000 034 D1 D103 D104 D201 D208 1SS133 D210 D701 D704 D714 D801 1SS133 D8050 D8060 MTZJ10C D8010 D8...

Page 23: ...C350 C375 C377 CEAT470M10 C385 C386 C705 C824 CEAT470M10 C138 C804 C806 C808 CEAT470M25 C392 C805 CEAT470M35 C721 CEAT471M10 C301 C306 C311 C313 CEAT4R7M50 C315 C316 C321 C323 CEAT4R7M50 C325 C326 C336 C342 C344 CEAT4R7M50 C346 C354 C356 C361 C363 CEAT4R7M50 C379 CEAT4R7M50 C368 CEATR33M50 C143 C347 C349 C353 C355 CEATR47M50 C362 C364 CEATR47M50 TC101 01410200 003 RESISTORS R278 R279 R287 R289 R80...

Page 24: ...24 VSX 108 6 ADJUSTMENT 6 1 TUNER SECTION 6 1 1 AM IF ADJUSTMENT 6 1 2 FM IF ADJUSTMENT 6 1 3 TUNING FREQUENCY RANGE ADJUSTMENTS FM AM DC Voltmeter Connect to TP1 and GND Fig 1 Fig 2 Fig 3 ...

Page 25: ...tment for the indication of VTVM of the wave form scope to be maximum 6 1 5 FM TRACKING ADJUSTMENT Signal Generator Connects to the FM ANT Jack FM IN through the dummy Fig 4 Fig 5 Fig 6 Adjustment Point T101 T102 T103 T104 TC101 IC101 IC102 TP3 TP4 TP2 L102 L104 R101 Pin 3 Pin 23 Pin 24 AM FM SIDE A TUNER PCB A TP1 ...

Page 26: ...62419 010 M62419FP 00272358 040 LC72358N 00202879 040 BU2879AK 1 1 2 3 4 5 Vref Buffer MIX Reg OSC RF 6 7 8 9 9 Block Diagram 00201838 040 LA1838 TUNER PCB IC102 AM FM IF MPX 1 Chip Tuner IC Block Diagram 30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 29 28 27 26 25 24 23 22 21 20 19 18 17 16 ALC AGC BUFF AM OSC AM MIX AM IF FM IF GND SD COMP FM DET AM S METER DECODER ANT1 BIRDIE P DET STEREO SW PILOT DET...

Page 27: ... TU LED 21 7 ST LED and AM IF output 22 MPX input 8 Power supply pin 23 FM demodulation output 9 FM detector 24 AM detection output 10 Connection pin of AM narrow Band pass C F 25 AM AGC 11 FM S meter output 26 AFC 12 AM S meter output and AM SD sensitivity adjustment 27 AM RF input 13 AM FM IF buffer output and output control SW mute SW 28 REG 14 Phase comparator Low pass filter Switch the FM AM ...

Page 28: ...ELAY OUT C VOL IN DET REF R OUT R NF L NF L OUT 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 V CC 2 26 C VOL OUT 27 C OP IN 28 GND2 29 C OP NF 30 C OP OUT 31 VOL REF 32 S OP OUT 33 S OP NF 34 S OP IN 35 S VOL OUT 36 OP V REF 37 S VOL IN 38 S OUT 39 DC CUT 40 BPF RECT VREF LOGDIFF LOGDIFF VCS R SW2 A A B B SW1 LR PG PG RECT RECT BPF RECT VCA VCA VCA VCA VCA VCA VCA VOL VCA C MODE...

Page 29: ... 15 2 8 1 4 5 13 14 00262419 010 M62419FP MAIN PCB IC203 Digital Sound Controller with Tone Control IC Block Diagram V REF FRONT OUT2 REAR OUT2 FADER IN2 TONE OUT2 TC2 C TC2 B TC2 A TONE IN2 ATTR OUT2 ATTF OUT2 SELECT2 IND SELECT2 INC SELECT2 INB SELECT2 INA SELECT NF2 LOUD IN2 VCL IN2 SELECT OUT2 VDD I F CLOCK 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 V CC FRONT OUT1 REAR OUT...

Page 30: ...tion 10 SELECT1 IND 31 ATTR OUT2 Output pin of the volume section later stage 11 ATTF OUT1 Output pin of the volume section first stage 32 ATTF OUT2 Output pin of the volume section first stage 12 ATTR OUT1 Output pin of the volume section later stage 33 SELECT2 IND CH2 input pin of the input selector switch section 13 TONE IN1 Input pin of the tone control section 34 SELECT2 INC 14 TC1 A Frequenc...

Page 31: ...80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 XIN TEST2 SI0 PG3 SO0 PG2 SCK0 PG1 PG0 SI1 PF3 SO1 PF2 SCK1 PF1 PF0 SI2 PE3 SO2 PE2 SCK2 PE1 PE0 PD3 PD2 PD1 PD0 PC3 PC2 PC1 PC0 PB3 PB2 PB1 PB0 PA3 PA2 PA1 PA0 VDD PQ0 PP3 PP2 PP1 PP0 PO3 PO2 PO1 PO0 XOUT TEST1 ED1 ED2 VSS FMIN AMIN V...

Page 32: ...nitialize H effective 31 S16 G11 10 K1 I Key scan data input 32 G10 O Output for grid Output is P ch open drain and pull down resistor 11 K2 33 G9 12 K3 34 G8 13 K4 35 G7 14 VDD I Power supply pin 1 Connect to system power 36 G6 15 S1 O Output for segment Output is P ch open drain and pull down resistor 37 G5 16 S2 38 VDD I Power supply pin 1 Connect to system power 17 S3 39 G4 O Output for grid O...

Page 33: ... 3G 4G 5G 6G 7G 8G 9G p Pin No 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 Connection F1 F1 NP 1G 2G 3G 4G 5G 6G 7G 8G 9G NC NC NC NC NC P15 Pin No 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Connection P14 P13 P12 P11 P10 P9 P8 P7 P6 P5 P4 P3 P2 P1 NP F2 F2 Note 1 F1 F2 Filament 2 NP No Pin 3 NC No connection 4 DL Datum Line 5 1G 9G Grid ...

Page 34: ... h h h h h h h h P3 j j j j j j j j j P4 k k k k k k k k P5 b b b b b b b b b P6 f f f f f f f f f P7 m m m m m m m m m P8 g g g g g g g g g P9 c c c c c c c c c P10 n n n n n n n n P11 p p p p p p p p p P12 r r r r r r r r P13 e e e e e e e e e P14 d d d d d d d d d P15 Dp1 Dp2 ...

Page 35: ...low to raise the low and high range levels so that the sound can be heard more easily MASTER VOLUME PHONES JACK Headphone terminal MPX MODE button Use to switch the auto stereo monaural mode for receiving FM broadcasts In case of STEREO indicator is not turn on because broadcast signal is too weak sound is monaural automatically MEMORY button STATION button Use to select the station number when op...

Page 36: ...36 VSX 108 ...

Page 37: ...when broadcasts are being received STEREO Lights when stereo broadcasts are received during auto stereo mode Display When use packed speaker system 2 CHARACTER display Front right speaker Front left speaker Center speaker Rear right speaker Rear left speaker Subwoofer OUTPUT OUTPUT INPUT INPUT Pink line Red line Light blue line Dark blue line Yellow line Orange line Green line ...

Page 38: ...TV FUNC TV VOL buttons CD TAPE DVD LD VCR MD operations STANDBY ON 4 Chapter Track search 2 Play 1 Rewind Fast Forward 8 Pause 7 Stop 3 Play 8 Number Surround setting buttons TEST TONE When turned ON while in DOLBY PRO LOGIC volume balance adjustment signals are out put in order from the speakers and can adjusted REAR LEVEL Adjusts the rear level CENTER MODE Switches the center mode CENTER LEVEL A...

Page 39: ... Response 30 Hz to 15 kHz 3 dB Antenna Input 300 Ω AMTuner Section Frequency Range 530 kHz to 1 700 kHz Antenna Loop antenna Miscellaneous Power Requirements AC 120 V 60 Hz Power Consumption 210 W Dimensions 420 W x 123 H x 321 D mm Weight without package 6 0 kg Furnished Parts FM Antenna 1 AM Loop Antenna 1 Dry Cell Batteries size AA IEC R6P 2 Remote Control Unit 1 RCA Cable 1 Operating Instructi...

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