Pioneer PRS-A900 Service Manual
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3 7 63 1515 0
BRIDGEABLE FOUR-CHANNEL POWER AMPLIFIER
PRS-A900
PRS-A900
TE
L 13942296513
www
For details, refer to "Important check points for good servicing".
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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
PIONEER CORPORATION 2007
http://www.xiaoyu163.com
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4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
http://www.xiaoyu163.com
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PRS-A900/XS/UC
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K-ZZD. NOV. 2007 Printed in Japan
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Table of Contents
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Summary of Contents for Pioneer PRS-A900
- Page 1 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 2007 K-ZZD.
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Page 2: Safety Information
This product contains lead in solder and certain electrical parts contain chemicals which are known to the state of California to cause cancer, birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 3 To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be u163 installed before shipment. Please be sure to follow this method especially if it is specified in this manual. PRS-A900/XS/UC http://www.xiaoyu163.com...
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Page 4: Table Of Contents
9.2 EXTERIOR............................... 20 9.3 AMP UNIT ..............................22 10. SCHEMATIC DIAGRAM ..........................26 10.1 AMP UNIT(GUIDE PAGE) ........................26 11. PCB CONNECTION DIAGRAM........................32 11.1 AMP UNIT .............................. 32 12. ELECTRICAL PARTS LIST .......................... 36 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 5: Service Precautions
Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting temperatures (hard to melt/easy to harden). The following lead-free solders are available as service parts: Parts numbers of lead-free solder: GYP1006 1.0 in dia. GYP1007 0.6 in dia. GYP1008 0.3 in dia. u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 6: Specifications
2. SPECIFICATIONS 3 7 63 1515 0 2.1 SPECIFICATIONS L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 7: Panel Facilities
2.2 PANEL FACILITIES 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 8: Connection Diagram
2.3 CONNECTION DIAGRAM 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 9: Basic Items For Service
See the table below for the items to be checked regarding audio: Item to be checked regarding audio Distortion Noise Volume too low Volume too high Volume fluctuating Sound interrupted L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 10: Jigs List
Applying to Chemical Capacitor etc. (*) Bond GYL1006 Applying to Thermistor (*) You can use GEM1017 even if the color is defferent from the original ones. 4. BLOCK DIAGRAM L 13942296513 There is no information to be shown in this chapter. u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 11: Diagnosis
5. DIAGNOSIS 3 7 63 1515 0 5.1 CONNECTOR FUNCTION DESCRIPTION L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... -
Page 12: Service Mode
Remove the eleven screws and then remove the Case. L 13942296513 Case Fig.1 Note) When removing the case, remove it from the positioning side. Removal from the opposite side may deform the positioning pin. (Fig.2) u163 Positioning pin Fig.2 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 13 Remove the four screws and then remove the two Holders. Fig.3 L 13942296513 Removing the Amp Unit (Fig.4) Remove the six screws. Remove the ten screws. Remove the four screws and then remove the Amp Unit. Amp Unit u163 Fig.4 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 14 L 13942296513 Hold here. 1 : You can use GYL1006 for the silicone adhesive. Press the thermistor against the transformer and apply an adhesive as the end of the thermistor touches the transformer. * TACK-FREE TIME 5 minutes u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 15 BOND LOCK 12 pts <<Capacitor>> *Bond should be applied both of parts and PCB. *Be aware not to apply bond on contact point of connector, seat area of screw. * TACK-FREE TIME 10 minutes u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
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Page 16: Each Setting And Adjustment
CN601 CN101 L601 CN602 BR OFFSET AR OFFSET CN603 VR1401 VR1201 T801 BR IDLING AR IDLING 4 Ohm CN1201 VR1402 VR1202 L 13942296513 4 Ohm AMP UNIT (SIDE B) BLM1 ALM1 ALP1 BLP1 BRP1 ARP1 BRM1 ARM1 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 17 DC Voltmeter : 0 ± 10 mV 4 Ohm load, no input AR OUT VR1201 BL OUT VR1301 BR OUT VR1401 AL(ALP1-ALM1) VR1102 DC Voltmeter : 4 ± 0.2 mV AR(ARP1-ARM1) VR1202 BL(BLP1-BLM1) VR1302 BR(BRP1-BRM1) VR1402 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
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Page 18: Exploded Views And Parts List
Screw adjacent to mark on the product are used for disassembly. For the applying amount of lubricants or glue, follow the instructions in this manual. (In the case of no amount instructions,apply as you think it appropriate.) 9.1 PACKING L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 19 13-2 Warranty Card See Contrast table(2) Polyethylene Bag CEG-158 Polyethylene Bag CEG1116 Polyethylene Bag See Contrast table(2) (2) CONTRAST TABLE PRS-A900/XS/UC and PRS-A900/XS/EW5 are constructed the same except for the following: Mark Description PRS-A900/XS/UC PRS-A900/XS/EW5 Polyethylene Bag CEG1351 CEG1317 Unit Box...
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Page 20: Exterior
9.2 EXTERIOR 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 21 See Contrast table(2) Screw CBA2115 Screw YBA5002 Case CNB3453 Spacer CNN1954 Holder CND4269 (2) CONTRAST TABLE PRS-A900/XS/UC and PRS-A900/XS/EW5 are constructed the same except for the following: Mark Description PRS-A900/XS/UC PRS-A900/XS/EW5 Cover CNR1915 CNR1931 Heat Sink CNR1930 CNR1929 Badge Unit...
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Page 22: Amp Unit
9.3 AMP UNIT 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 23 Auto Fuse Holder(CN602) CKR1021 Screw PPZ30P100FTB Terminal(CN604, 605, 606) VNF1084 Auto Fuse Holder(CN603) CKR1021 Panel CNB3454 (2) CONTRAST TABLE PRS-A900/XS/UC and PRS-A900/XS/EW5 are constructed the same except for the following: Mark Description PRS-A900/XS/UC PRS-A900/XS/EW5 Amp Unit CWH1386 CWH1384 L 13942296513 u163 PRS-A900/XS/UC...
- Page 24 - Screws List 3 7 63 1515 0 BBZ30P060FTB BMZ30P060FCU BMZ30P060FTB CBA1810 CBA2012 CBA2064 CBA2115 AMZ26P080FCC AMZ30P040FTC L 13942296513 BBZ30P060FSN BMZ40P200FTB CBA2110 CBA2060 PPZ30P100FTB YBA5002 CBA2059 PPZ20P060FTB u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 25 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
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Page 26: Schematic Diagram
R840 FRH10A15 (1W) D802 R814 L802 Q806 TP207 -15VR FKV550N (1/4W) Q810 320μH RM15V TP107 2SA1859 (1/2W) -VLR (-31V) RP33V R813 D803 +VHR (+33V) (1/2W) RF101L2S C811 470/50 C812 470/50 D804 -VHR (-33V) R812 RF101L2S RM33V (1/2W) PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 27 No differentiation is made between chip resistors and and capacitor fixed values Therefore, when replacing, be sure to use parts of discrete resistors. are expressed as : identical designation. Symbol indicates a capacitor. No differentiation is made between chip capacitors and 0.022 R022 discrete capacitors. PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 28 3 7 63 1515 0 Speaker Output Speaker Output L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 29 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 30 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 31 3 7 63 1515 0 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
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Page 32: Pcb Connection Diagram
L802 C803 TH602 CN603 C602 CN606 L801 C1409 T801 D1202 C807 CN1201 R1432 R1431 R1231 C1410 RY1201 R813 R812 R810 C802 C801 R809 R806 R807 R811 R1232 R805 R808 C1210 Q808 Q806 Q807 Q805 D802 D801 C1209 u163 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 33 Q1211 Q1409 VR1402 VR1202 R1420 R1220 R1421 R1221 R1227 INPUT LEVEL R1419 R1219 R1424 R1423 R1229 R1224 R1223 R1216 R1428 VR201 R1215 R1427 R1415 Q1214 D1201 R1416 R1425 R1426 R1226 R1225 Q1407 Q1207 TH604 Q1213 Q1212 R1228 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 34 C209 R208 IC201 C204 R206 R205 R204 R207 C207 R201 C1402 C1202 R1442 R419 R1241 R1242 R1441 C201 R418 C1204 C1203 C1205 C1406 C1405 C1403 C1206 C1404 R219 R421 R218 R221 C1408 BRP1 C1208 ARP1 BRM1 ARM1 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 35 C604 R642 R623 R624 C609 R611 R664 R625 R661 C608 R663 C614 R627 R626 R662 C619 R801 R617 R802 R618 R612 R613 C611 C623 D610 R803 R804 D606 R622 D609 Q608 C641 C642 C1251 D803 D804 C804 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...
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Page 36: Electrical Parts List
(A,58,199) Transistor FKV550N Q 1212 (A,269,33) Transistor 2SC4886 Q 706 (A,86,199) Transistor FKV550N Q 1213 (A,237,33) Transistor 2SA1860 Q 707 (A,44,199) Transistor FKV550N Q 1214 (A,289,39) Transistor 2SD1768S Q 708 (A,72,199) Transistor FKV550N Q 1301 (A,188,152) Transistor 2SA992 PRS-A900/XS/UC http://www.xiaoyu163.com... - Page 37 (B,287,63) RN1/10SE2201D D 804 (B,108,54) Diode RF101L2S D 805 (A,220,101) Diode HZS16L(1) R 219 (B,290,65) RN1/10SE2201D R 221 (B,293,48) RN1/10SE1000D R 301 (B,293,130) RN1/10SE4700D D 806 (A,220,98) Diode HZS16L(1) R 302 (B,278,130) RN1/10SE2202D D 1101 (A,279,188) Diode 1SS133 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 38 (A,251,193) RD1/4PU103J R 644 (B,176,116) RS1/16S103J R 1116 (A,254,190) RD1/4PU182J R 647 (B,137,120) RS1/16S103J R 1117 (A,269,168) 100 ohm CCN1171 R 648 (B,174,122) RS1/16S683J R 1118 (A,239,168) 100 ohm CCN1171 R 649 (B,178,120) RS1/16S103J R 1119 (A,253,169) RD1/4PU821J PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 39 R 1306 (A,222,155) RD1/4PU151J R 1432 (A,24,57) RS1/2PMF100J R 1307 (A,177,163) RD1/4PU102J R 1441 (B,196,80) RN1/10SE5600D R 1308 (A,222,162) RD1/4PU102J R 1442 (B,207,81) RN1/10SE5600D R 1309 (A,194,153) RD1/4PU221J R 1310 (A,209,153) RD1/4PU221J CAPACITORS R 1311 (A,182,163) RD1/4PU221J PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 40 (A,157,126) CEANP221M10 C 1302 (B,208,146) CCSQCH221J50 C 621 (A,157,107) CEANP221M10 C 1303 (B,185,166) CCSQCH330J50 C 622 (B,77,137) CKSRYB103K50 C 1304 (B,189,166) CCSQCH330J50 C 623 (B,73,98) CKSRYB103K50 C 1305 (B,210,166) CCSQCH330J50 C 641 (B,99,91) CKSRYB104K50 C 1306 (B,214,166) CCSQCH330J50 PRS-A900/XS/UC http://www.xiaoyu163.com...
- Page 41 C 1402 (B,181,84) CCSQCH221J50 C 1403 (B,185,67) CCSQCH330J50 C 1404 (B,189,67) CCSQCH330J50 C 1405 (B,209,67) CCSQCH330J50 C 1406 (B,213,67) CCSQCH330J50 C 1407 (A,201,69) 47 µF/25 V CCH1544 C 1408 (B,180,44) CKSQYB104K50 C 1409 (A,23,67) CFTNA273J50 L 13942296513 u163 PRS-A900/XS/UC http://www.xiaoyu163.com...