Pioneer VSX-C300 Service Manual
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Pioneer VSX-C300 Service Manual

Audio/video multi-channel receiver
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AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-C300
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
VSX-C300
KUXJI/CA
CONTENTS
1. SAFETY INFORMATION ...................................... 2
4. PCB CONNECTION DIAGRAM ......................... 32
5. PCB PARTS LIST ............................................... 46
6. ADJUSTMENT .................................................... 50
PIONEER CORPORATION
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
c
PIONEER CORPORATION 2001
STANDBY
OFF
ON
PHONES
Power Requirement
AC120V
4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C300
INPUT SIGNAL
PHONES
2
2
SURR
DIGITAL
PROLOGIC
DIGITAL
DTS
VIRTUAL
STEREO
FRONT INPUT
DVD
TV/SAT
VCR
TUNER
VIDEO
L
AUDIO
R
DIGITAL IN
7. GENERAL INFORMATION ................................ 51
7.1 DIAGNOSIS .................................................. 51
7.1.1 Test Mode ................................................ 51
7.1.5 Timing Chart ............................................ 55
7.2 PARTS .......................................................... 56
7.2.1 IC ............................................................ 56
7.2.2 DISPLAY ................................................. 62
ORDER NO.
RRV2524
MASTER
FRONT
VOLUME
DOWN
UP
Remarks
T - ZZR SEPT. 2001 Printed in Japan

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  • Page 1: Table Of Contents

    PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A. PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936 PIONEER CORPORATION 2001 T –...

  • Page 2: Safety Information

    The use of a substitute replacement component which does Leakage 0.5mA current Device not have the same safety characteristics as the PIONEER tester under recommended replacement one, shown in the parts list in test this Service Manual, may create shock, fire, or other hazards.

  • Page 3: Exploded Views And Parts List

    VSX-C300 2. EXPLODED VIEWS AND PARTS LIST NOTES: Parts marked by "NSP" are generally unavailable because they are not in our Master Spare Parts List. mark found on some component parts indicates the importance of the safety factor of the part.
  • Page 4 VSX-C300 2.2 EXTERIOR SECTION Refer to "2.3 FRONT PANEL SECTION".
  • Page 5 VSX-C300 ÷ EXTERIOR SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. DSP ASSY AWX7937 Rubber Cushion AEB7235 Insulator 50 Assy AMR7379 2P - JACK ASSY AWX7926 POWER ASSY AWX7910 Screw With Washer ABA7080 PCB Mold...
  • Page 6 VSX-C300 2.3 FRONT PANEL SECTION...
  • Page 7 VSX-C300 ÷ FRONT PANEL SECTION PARTS LIST Mark No. Description Part No. FRONT ASSY AWX7933 POWER SW ASSY AWX7904 ENCODER ASSY AWX7914 LED ASSY AWX7913 FRONT INPUT ASSY AWX7916 Front Panel Assy AMB7778 Function Button AAD7633 FFC (J1702 : 23P ADD7293 Front CN4202 ÔDSP CN1702)

  • Page 8: Block Diagram And Schematic Diagram

    VSX-C300 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM 3.1 BLOCK DIAGRAM FM/AM TUNER MODULE BN201 CN201 CN803 IC701 TC9164AF AUDIO FUNCTION DSP ASSY SELECTOR IC702 UPC4570G2 IC1301-IC1303 NJM4558MD LPF & 6dB AMP. IC802 AK4527BVQ FRONT INPUT CN1501 CODEC IC703 ASSY (1/3)
  • Page 9 VSX-C300 FRONT INPUT ASSY (3/3) PHONES IC1306, IC1402-IC1405 NJM4558MD IC1502-IC1504 IC1401 UPC4570G2 TC9164AF PRE-AMP. MIX AMP. SP Config. IC1501 M62446FP ELECTRIC VOLUME POWER ASSY (3/3)

  • Page 10: Overall Wiring Diagram

    VSX-C300 3.2 OVERALL WIRING DIAGRAM DC FAN MOTOR : AXM7017 POWER CORD KUXJI/CA : ADG7022 : AKP7032 TRANS 1 ASSY (AWX7906) 1/2, POWER TRANSFORMER : ATS7317 POWER ASSY (AWX7910) TRANS 2 ASSY (AWX7907) SW ASSY FRONT INPUT (AWX7904) ASSY LED ASSY...
  • Page 11 VSX-C300 Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". VIDEO ASSY OPT-IN ASSY TH9014 (AWX7928) (AWX7908) THERMISTOR : AEX7004 1/5- DSP ASSY (AWX7937) CN201 SUPPORT FM/AM TUNER MODULE...
  • Page 12 VSX-C300 3.3 FM/AM TUNER MODULE FM/AM TUNER UNIT MODULE (AXQ7231) FM FRONT END (FM) (FM) (FM) (FM) (FM) (AM) (AM) (AM) MW RF TUNING BLOCK (FM) (AM) OSC : 980 - 2150kHz 10k step...
  • Page 13 VSX-C300 : The power supply is shown with the marked box. (TX) : AUDIO SIGNAL ROUTE (TUNER) (AM) : AM SIGNAL ROUTE (FM) : FM SIGNAL ROUTE ATF7026 (AM) (TX) (FM) (TX) (TX) (TX) (FM) (FM) (TX) (AM) L201 ATE7003...
  • Page 14 VSX-C300 3.4 DSP (1/5) and 2P JACK ASSYS CN3201 DSP ASSY (AWX7937) (TX) (TX) Audio Function Selector (TX) 2P JACK ASSY (AWX7926) CN901...
  • Page 15 VSX-C300 : AUDIO SIGNAL ROUTE CN201 (TX) : AUDIO SIGNAL ROUTE (Tuner) : AUDIO SIGNAL ROUTE (Digital) (FL) : AUDIO SIGNAL ROUTE (Front L ch) (RL) : AUDIO SIGNAL ROUTE (Rear L ch) (SW) : AUDIO SIGNAL ROUTE (Sub Woofer)
  • Page 16 VSX-C300 3.5 DSP ASSY (2/5) DSP ASSY (AWX7937) DSP for DECODE ROM for DECODE...
  • Page 17 VSX-C300 : AUDIO SIGNAL ROUTE DSP for Delay RAM for Delay 5V Converter...
  • Page 18 VSX-C300 3.6 DSP ASSY (3/5) DSP ASSY (AWX7937) (FL) (FL) (FL) (FL) (FL) (RL) (SW) (RL) (FL) (RL) (FL) (RL) (RL) SP Config. (RL) (RL) (SW) (SW) (SW) (SW)
  • Page 19 VSX-C300 (FL) : AUDIO SIGNAL ROUTE (Front L ch) (RL) : AUDIO SIGNAL ROUTE (Rear L ch) (SW) : AUDIO SIGNAL ROUTE (Sub Woofer) : AUDIO SIGNAL ROUTE (Center) (FL) (FL) (FL) (FL) (FL) (RL) (SW) (RL) (RL) (RL) (RL)
  • Page 20 VSX-C300 3.7 DSP ASSY (4/5) (FL) DSP ASSY (AWX7937) (RL) (FL) (FL) (FL) (FL) (RL) (RL) (RL) (RL) (SW) (SW) (SW) (SW) Electric Volume (SW)
  • Page 21 VSX-C300 : VIDEO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (FL) (FL) (FL) (FL) : AUDIO SIGNAL ROUTE (Front L ch) (RL) : AUDIO SIGNAL ROUTE (Rear L ch) (SW) : AUDIO SIGNAL ROUTE (Sub Woofer) : AUDIO SIGNAL ROUTE (Center)
  • Page 22 VSX-C300 3.8 DSP (5/5) and OPT-IN ASSYS DSP ASSY (AWX7937) : AUDIO SIGNAL ROUTE (Digital) OPT-IN ASSY (AWX7908) CN801...
  • Page 23 VSX-C300 CN4202 : The power supply is shown with the marked box.

  • Page 24: Video Assy

    VSX-C300 3.9 VIDEO ASSY VIDEO ASSY (AWX7928) : VIDEO SIGNAL ROUTE...
  • Page 25 VSX-C300 3.10 FRONT INPUT ASSY : VIDEO SIGNAL ROUTE FRONT INPUT ASSY : AUDIO SIGNAL ROUTE (AWX7916) : AUDIO SIGNAL ROUTE (Digital) CN304...
  • Page 26 VSX-C300 3.11 FRONT, LED and ENCODER ASSYS FRONT ASSY (AWX7933) REMOTE RECEIVER UNIT...
  • Page 27 VSX-C300 : The power supply is shown with the marked box. FRONT ASSY S4201 : DVD S4202 : TV / SAT S4203 : VCR S4204 : TUNER S4205 : FRONT ENCODER ASSY S4401 : MASTER VOLUM LED ASSY (AWX7913) ENCODER ASSY...
  • Page 28 VSX-C300 3.12 POWER ASSY (1/2) POWER ASSY (AWX7910) (FL) Front Power Amp. Over Load Det. Q305 2SC2712(GRBL) Mute Q301 2SC3326(AB) Over Load (RL) Det. Q306 2SC2712(GRBL) (FL) (FL) Q407 2SC3326(AB) 1SS355 Q302 2SC3326(AB) (SW) Mute (SW) Q408 2SC3326(AB) Rear, Center (RL) Power Amp.
  • Page 29 VSX-C300 (RL) : VIDEO SIGNAL ROUTE : AUDIO SIGNAL ROUTE : AUDIO SIGNAL ROUTE (Rear L ch) (SW) : AUDIO SIGNAL ROUTE (Digital) : AUDIO SIGNAL ROUTE (Sub Woofer) (FL) : AUDIO SIGNAL ROUTE (Front L ch) : AUDIO SIGNAL ROUTE (Center) Voltage Status •...

  • Page 30: Trans 1 Assy

    VSX-C300 3.13 POWER (2/2), SW, TRANS 2 and TRANS 1 ASSYS TRANS 1 ASSY (AWX7906) TRANS 2 ASSY (AWX7907) J451 J452 J453 J454 CAUTION : CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
  • Page 31 VSX-C300 SW ASSY (AWX7904) SW ASSY S601 : POWER ON/OFF POWER ASSY (AWX7910) 11.4 1SS355 REK1112 ATT7057 AN101 (2.5A/125V) AKP7032 LIVE AC IN NEUTRAL NOTE FOR FUSE REPLACEMENT FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. CAUTION - REPLACE WITH SAME TYPE AND RATINGS ONLY.

  • Page 32: Pcb Connection Diagram

    VSX-C300 4. PCB CONNECTION DIAGRAM NOTE FOR PCB DIAGRAMS : 1. Part numbers in PCB diagrams match those in the schematic 3. The parts mounted on this PCB include all necessary parts for diagrams. several destinations. 2. A comparison between the main parts of PCB and schematic For further information for respective destinations, be sure to diagrams is shown below.
  • Page 33 VSX-C300 4.2 FM/AM TUNER MODULE FM/AM TUNER MODULE SIDE A CN803 (ANP7338-B) Q202 FM/AM TUNER MODULE SIDE B (ANP7338-B) Q201 IC201 Q203 Q205 IC202 Q204...
  • Page 34 VSX-C300 4.3 DSP and 2P-JACK ASSYS DSP ASSY CN901 CN3201 2PA-JACK ASSY CN201 CN301 (ANP7395-C) SIDE A IC704 Q702 Q701 IC703 Q703 IC801 IC802 IC1107 IC702 IC1502 Q704 IC1303 IC1302 IC1301 Q1411 IC1504 Q705 Q1507 Q1401 Q1501 IC1501 Q1412 Q1502 Q1506...
  • Page 35 VSX-C300 SIDE A CN4203 CN4202 CN302 (ANP7396-B) IC1107 IC1106 IC1103 IC1104 IC1701 IC1602 Q1411 Q1408 IC1201 IC1203 Q1407 Q1405 Q1401 IC1402 Q1406 Q1402 IC1404 Q1412 Q1403 IC1406 IC1601 Q1404...
  • Page 36 VSX-C300 DSP ASSY Q1101 IC1102 IC1101 IC1202 Q1102 IC1105 IC1401 IC1403 IC1405...
  • Page 37 VSX-C300 SIDE B 2PA-JACK ASSY (ANP7395-C) SIDE B (ANP7396-B) Q801 Q803 IC1503 IC803 IC701...
  • Page 38 VSX-C300 4.4 POWER and SW ASSYS FANMOTOR CN1501 POWER ASSY J451 J601 IC201 J101A J102B...
  • Page 39 VSX-C300 CN1601 CN4101 CN4201 IC454 IC453 Q451 Q452 IC451 IC452 J453A (ANP7395-C) J454A J451A J452A SIDE A CN201 (ANP7395-C) SIDE A SW ASSY...

  • Page 40: Power Assy

    VSX-C300 POWER ASSY Q401 Q386 Q404 Q403 Q408 Q405 Q406 Q407 Q409 Q410 Q301 Q381 Q342 Q341 Q302 Q385 Q384 Q402 Q383 Q306 Q305 Q389 Q390 Q387 Q388 SW ASSY (ANP7395-C) SIDE B...
  • Page 41 VSX-C300 Q201 SIDE B (ANP7396-B)
  • Page 42 VSX-C300 4.5 FRONT, VIDEO, OPT-IN, TRANS1 and TRANS2 ASSYS FRONT ASSY CN303 J4204A Q4205 Q4206 Q4211 Q4213 Q4208 Q4212 LED ASSY J4204 VIDEO ASSY CN802 OPT-IN ASSY (ANP7396-B) CN801 ENCODER ASSY J4205 (ANP7395-C) (ANP7395-C) SIDE A (ANP7396-B) D E G H I...
  • Page 43 VSX-C300 CN1702 CN804 J4205A (ANP7396-B) Q4213 SIDE A TRANS2 ASSY TRANS 1 ASSY J451 J101 J452 J453 J102 (ANP7395-C) (ANP7395-C) Transformer J454 SIDE A...
  • Page 44 VSX-C300 FRONT ASSY IC4201 IC4681 Q4683 Q4682 Q4681 LED ASSY OPT-IN ASSY VIDEO ASSY (ANP7396-B) IC3201 ENCORDER ASSY (ANP7395-C) SIDE B (ANP7395-C) SIDE B (ANP7396-B) D E G...
  • Page 45 VSX-C300 SIDE B (ANP7396-B) Q4201 Q4202 Q4207 TRANS 2 ASSY TRANS 1 ASSY (ANP7395-C) (ANP7395-C) Transformer SIDE B...

  • Page 46: Pcb Parts List

    VSX-C300 5. PCB PARTS LIST NOTES : ÷ Parts marked by “ NSP ” are generally unavailable because they are not in our Master Spare Parts List. ÷ The mark found on some component parts indicates the importance of the safety factor of the part.

  • Page 47: Dsp Assy

    VSX-C300 Mark No. Description Part No. Mark No. Description Part No. C1109, C1216, C1401, C1403 CEAT100M50 DSP ASSY C1512-C1517, C1551, C1552 CEAT100M50 C713, C714 CEAT100M50 SEMICONDUCTORS C1106, C1115, C1203, C1222, C1336 CEAT101M16 C1501, C1521, C1601-C1604 CEAT101M16 IC801 AK4112AVF IC802 AK4527BVQ...
  • Page 48 VSX-C300 Mark No. Description Part No. Mark No. Description Part No. CN1702 23P FFC CONNECTOR 52045-2345 IC451 NJM7812FA JA702 3P PIN JACK AKB7137 IC201 NJM78M56FA JA701 3P PIN JACK AKB7138 IC452 NJM7912FA CN701 7P PLUG AKP7056 IC301 STK402-040 X801 CRYSTAL RESO.(24MHz)
  • Page 49 VSX-C300 Mark No. Description Part No. Mark No. Description Part No. JA4102 OPTICAL LINK GP1FA502RZ C307, C308, C347, C348, C384 CEHAT330M25 JA4103 HP. JACK RKB1014 C301, C302, C341, C342 CKSQYF225Z16 KN4101 EARTH METAL FITTING VNF1084 C371-C375, C381, C481, C482 CKSQYF225Z16...

  • Page 50: Adjustment

    VSX-C300 Mark No. Description Part No. ENCODER ASSY SEMICONDUCTORS 6. ADJUSTMENT S4401 ROTARY ENCODER ASX7040 CAPACITORS There is no information to be shown in this chapter. C4401, C4402 CKSRYB102K50 OTHERS 4401 3P CABLE HOLDER 51048-0300 SW ASSY SWITCHES AND RELAYS...

  • Page 51: General Information

    VSX-C300 7. GENERAL INFORMATION 7.1 DIAGNOSIS 7.1.1 Test Mode • How to Enter the Test Mode With the attatched Remote Control Unit 1. For Preset mode, set the remote control 7. Master volume switch " 5 " key (1) Enter [ REMOTE SETUP ] + [ 1 ] keys.

  • Page 52: Protection Of The Amplifier Line

    VSX-C300 7.1.2 Protection of the Amplifier Line 1. Detection of abnormalities in DC circuits This detection has priority over the overload detection and abnormality detection for the fan and thermistor. If an abnormality has been detected, AMUTE is on, RELAY is off, and the "AMP ERR"...

  • Page 53: Operation Of The Fan-Control Line

    VSX-C300 7.1.3 Operation of the Fan-Control Line 1. Detection of the heat sink The detection is carried out every other second by taking in the voltage of the thermistor at A/D (PORT 31). 2. According to the temperature detected, the following operation will be executed:...

  • Page 54: Specifications Of Speaker Detection

    VSX-C300 7.1.4 Specifications of Speaker Detection 1. Purposes Whether the speakers are connected or not is automatically detected, and settings appropriate for the detected speakers are made to allow you to easily play surround-sound without making cumbersome speaker settings. 2. Method of detecting speakers Whether a center speaker and/or subwoofer is connected or not is detected 600 ms after the power is turned on.

  • Page 55: Timing Chart

    VSX-C300 7.1.5 Timing Chart Timing Chart of Power ON Initial 1000 1800 2800 3600 4800 5200 (msec) AC relay "H" (ON) (UCOM port) A. MUTE "H" (ON) "L" or "H" (UCOM port) Control start FL, LED control Full open Last data...

  • Page 56: Parts

    VSX-C300 7.2 PARTS 7.2.1 IC • The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams. List of IC PDG264A, PD5681A PDG264A (FRONT ASSY : IC4201) • Mode Control IC...
  • Page 57 VSX-C300 Pin Function i r r c t i l l i...
  • Page 58 VSX-C300 c t i c t i i t l c i t x i f...
  • Page 59 VSX-C300 PD5681A (DSP ASSY : IC1701) • DSP Microcomputer Pin Assignment (Top view) AREQ CDC_CK CDC_DT M_DO CDC_CS M_DI M_CK BYTE CNVSS M_CS2 M_READY FS96 RESET RESET CODEC PD XOUT DIR SDTO DIR PD M_CSI SELC SELB SELA...
  • Page 60 VSX-C300 Pin Function l l u t i r l l i l l i...
  • Page 61 VSX-C300...

  • Page 62: Display

    VSX-C300 7.2.2 DISPLAY AAV7083 (FRONT ASSY : V4301) • FL DISPLAY • Pin Assignment • Grid Assignment • Segment Designation...
  • Page 63 VSX-C300 • Pin Connection • Anode Connection...

  • Page 64: Panel Facilities And Specifications

    VSX-C300 8. PANEL FACILITIES AND SPECIFICATIONS 8.1 PANEL FACILITIES Front Panel AUDIO/VIDEO MULTI-CHANNEL RECEIVER VSX-C300 INPUT SIGNAL PHONES SURR DIGITAL PROLOGIC DIGITAL VIRTUAL STEREO STANDBY FRONT INPUT MASTER TV/SAT TUNER FRONT VOLUME DOWN PHONES VIDEO AUDIO DIGITAL IN STEREO TUNED MONO 1 —...

  • Page 65: Remote Control

    VSX-C300 Remote Control 1 RECEIVER (Power) button: This switches between STANDBY mode and power ON for this receiver. 2 Input/Control Mode Select buttons Use to put the receiver/remote control in the input stated on the button. If the Direct Selection is off, then these buttons won’t put the receiver in the input written on the button.
  • Page 66 VSX-C300 ROOM SETUP (S-M-L) buttons Use these functions when setting up the surround sound speaker distances with the Quick Start, easy-to-do method CH.LEVEL +/– buttons Use these buttons to control the volume level of each channel or add or subtract the amount of effect in a listening mode.

  • Page 67: Specifications

    VSX-C300 8.2 SPECIFICATIONS Amplifier Section Continuous average power output of 21 watts* per channel, min., at 6 ohms, from 20 Hz to FM Tuner Section 20,000 Hz with no more than 0.9 %** total Frequency Range ....... 87.5 MHz to 108 MHz harmonic distortion (front).

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