ORDER NO.
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
VSX-LX70
MASTER
VOLUME
STANDBY/ON
INPUT
SELECTOR
PHASE
CONTROL
PHASE
CONTROL
AUTO SURR/
STREAM DIRECT
MCACC
POSITION
ADVANCED
MCACC
DIGITAL VIDEO
HDMI
SCALER
DIGITAL PRECISION
PROCESSING
HOME
THX
STANDARD
SURROUND
ADVANCED
SURROUND
VSX-LX70
RRV3653
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-LX70
VSX-LX60
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
*:Alter the wiring of the power-supply block at the primary winding of Power transformer referring to the Line Voltage Selection
described in this Service Manual ("11.18 TRANS1 and PRIMARY ASSYS").
Model
Type
Power Requirement
The voltage can be converted by the
following method.
VSX-LX70
HYXJ5
AC 220 V to 230 V
AC240V,*
VSX-LX60
HYXJ5
AC 220 V to 230 V
AC240V,*
For details, refer to "Important Check Points for good servicing".
T-FZV AUG. 2007 printed in Japan
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SAFETY INFORMATION
This service manual is intended for qualified service technicians ; it is not meant for the casual do-it-
yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained
to properly and safely repair complex products such as those covered by this manual.
Improperly performed repairs can adversely affect the safety and reliability of the product and may
void the warranty. If you are not qualified to perform the repair of this product properly and safely, you
should not risk trying to do so and refer the repair to a qualified service technician.
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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1 Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2 Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.
3 Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4 Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5 Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6 Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7 Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8 There should be no semi-broken wires, scratches, melting, etc.on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9 There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
a Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.
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CONTENTS
SAFETY INFORMATION..................................................................................................................................... 2
1. SERVICE PRECAUTIONS ............................................................................................................................... 6
1.1 NOTES ON SOLDERING .......................................................................................................................... 6
2. SPECIFICATIONS............................................................................................................................................ 7
2.1 ACCESSORIES ......................................................................................................................................... 7
2.2 SPECIFICATIONS ..................................................................................................................................... 8
2.3 PANEL FACILITIES.................................................................................................................................... 9
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 15
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 15
3.2 PCB LOCATIONS .................................................................................................................................... 16
3.3 JIGS LIST ................................................................................................................................................ 18
4. BLOCK DIAGRAM.......................................................................................................................................... 20
4.1 OVERALL WIRING DIAGRAM ................................................................................................................ 20
4.2 AUDIO BLOCK DIAGRAM....................................................................................................................... 22
4.3 COMPOSITE V BLOCK DIAGRAM ......................................................................................................... 24
4.4 S-VIDEO BLOCK DIAGRAM ................................................................................................................... 25
4.5 COMPONENT & VOL BLOCK DIAGRAM ...............................................................................................26
4.6 DSP BLOCK DIAGRAM........................................................................................................................... 27
4.7 HDMI & DLNA BLOCK DIAGRAM (VSX-LX70)....................................................................................... 28
4.8 HDMI & DVC BLOCK DIAGRAM............................................................................................................. 29
4.9 MICROCOMPUTER BLOCK DIAGRAM.................................................................................................. 30
5. DIAGNOSIS.................................................................................................................................................... 31
5.1 DIAGNOSIS FLOWCHART ..................................................................................................................... 31
5.2 CIRCUIT DESCRIPTION ......................................................................................................................... 73
6. SERVICE MODE ............................................................................................................................................ 75
6.1 SERVICE MODE...................................................................................................................................... 75
7. DISASSEMBLY .............................................................................................................................................. 80
8. EACH SETTING AND ADJUSTMENT ........................................................................................................... 87
8.1 ADJUSTMENT......................................................................................................................................... 87
8.2 HOW TO UPDATE THE DSP FLASH ROM BY PLAYING BACK A CD .................................................. 87
8.3 HOW TO UPDATE THE FLASH ROMS FOR VARIOUS MICROCOMPUTERS ..................................... 90
9. EXPLODED VIEWS AND PARTS LIST.......................................................................................................... 92
9.1 PACKING ................................................................................................................................................. 92
9.2 EXTERIOR SECTION.............................................................................................................................. 94
9.3 CHASSIS SECTION ................................................................................................................................ 96
9.4 REAR PANEL SECTION.......................................................................................................................... 98
9.5 POWER AMP SECTION........................................................................................................................ 100
9.6 FRONT PANEL SECTION ..................................................................................................................... 102
10. SCHEMATIC DIAGRAM............................................................................................................................. 104
10.1 AUDIO & MULTI CH IN ASSY ............................................................................................................. 104
10.2 V-AUDIO ASSY.................................................................................................................................... 106
10.3 FRONT-IN and HEADPHONE ASSYS ................................................................................................ 108
10.4 BRIDGE1, BRIDGE2, TRANS SIDE and BRIDGE3 ASSYS ................................................................110
10.5 COMPOSITE V ASSY ..........................................................................................................................112
10.6 S-VIDEO ASSY.....................................................................................................................................114
10.7 COMPONENT & VOL ASSY (1/4) ........................................................................................................116
10.8 COMPONENT & VOL ASSY (2/4) ........................................................................................................118
10.9 COMPONENT & VOL ASSY (3/4) ....................................................................................................... 120
10.10 COMPONENT & VOL ASSY (4/4) ..................................................................................................... 122
10.11 DIGITAL MOTHER ASSY (1/7) .......................................................................................................... 124
10.12 DIGITAL MOTHER ASSY (2/7).......................................................................................................... 126
10.13 DIGITAL MOTHER ASSY (3/7).......................................................................................................... 128
10.14 DIGITAL MOTHER ASSY (4/7).......................................................................................................... 130
10.15 DIGITAL MOTHER ASSY (5/7).......................................................................................................... 132
10.16 DIGITAL MOTHER ASSY (6/7).......................................................................................................... 134
10.17 DIGITAL MOTHER ASSY (7/7).......................................................................................................... 136
10.18 DSP ASSY (1/3)................................................................................................................................. 138
10.19 DSP ASSY (2/3)................................................................................................................................. 140
10.20 DSP ASSY (3/3)................................................................................................................................. 142
10.21 INTERFACE ASSY (1/2).................................................................................................................... 144
10.22 INTERFACE ASSY (2/2).................................................................................................................... 146
10.23 POWER AMP IN and POWER PROTECT ASSYS ........................................................................... 148
10.24 POWER AMP L ASSY ....................................................................................................................... 150
10.25 POWER AMP R ASSY ...................................................................................................................... 152
10.26 LOCAL SUPPLY and DC/DC ASSYS ................................................................................................ 154
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10.27 TRANS2-1, VH-TR, DIODE and SP/PS ASSYS ................................................................................156
10.28 TRANS2-2,TRANS1 and PRIMARY ASSYS......................................................................................158
10.29 VOLUME, DISPLAY, POWER SW and INPUT SELECT ASSYS.......................................................160
10.30 PREOUT & CONTROL ASSY ............................................................................................................162
10.31 HDMI & DLNA ASSY (1/4) (VSX-LX70) .............................................................................................164
10.32 HDMI & DLNA ASSY (2/4) (VSX-LX70) .............................................................................................166
10.33 HDMI & DLNA ASSY (3/4) (VSX-LX70) .............................................................................................168
10.34 HDMI & DLNA ASSY (4/4) (VSX-LX70) .............................................................................................170
10.35 HDMI & DVC ASSY (1/3) (VSX-LX60) ...............................................................................................172
10.36 HDMI & DVC ASSY (2/3) (VSX-LX60) ...............................................................................................174
10.37 HDMI & DVC ASSY (3/3) (VSX-LX60) ...............................................................................................176
10.38 USB ASSY (VSX-LX60)......................................................................................................................178
10.39 HDMI POWER, HDMI TRANS and HDMI DIODE ASSYS .................................................................180
11. PCB CONNECTION DIAGRAM ..................................................................................................................181
11.1 AUDIO & MULTI CH IN ASSY ..............................................................................................................182
11.2 V-AUDIO and HEADPHONE ASSYS ...................................................................................................183
11.3 FRONT-IN ASSY ..................................................................................................................................184
11.4 BRIDGE1 and BRIDGE2 ASSYS .........................................................................................................185
11.5 TRANS SIDE and BRIDGE3 ASSYS....................................................................................................186
11.6 COMPOSITE V ASSY ..........................................................................................................................188
11.7 S-VIDEO ASSY.....................................................................................................................................189
11.8 COMPONENT & VOL ASSY ................................................................................................................190
11.9 DIGITAL MOTHER ASSY .....................................................................................................................194
11.10 DSP ASSY ..........................................................................................................................................198
11.11 INTERFACE ASSY .............................................................................................................................202
11.12 POWER AMP IN ASSY ......................................................................................................................206
11.13 POWER PROTECT ASSY..................................................................................................................207
11.14 POWER AMP L and POWER AMP R ASSYS....................................................................................208
11.15 LOCAL SUPPLY and DC/DC ASSYS.................................................................................................212
11.16 TRANS2-1, VH-TR, DIODE and TRANS2-2 ASSYS..........................................................................214
11.17 SP/PS ASSY.......................................................................................................................................216
11.18 TRANS1 and PRIMARY ASSYS ........................................................................................................218
11.19 POWER SW, VOLUME, DISPLAY and INPUT SELECT ASSYS.......................................................220
11.20 PREOUT & CONTROL ASSY ............................................................................................................224
11.21 FR BARRIER 1 ASSY.........................................................................................................................225
11.22 HDMI POWER, HDMI TRANS and HDMI DIODE ASSYS .................................................................226
11.23 HDMI & DLNA ASSY (VSX-LX70) ......................................................................................................228
11.24 HDMI & DVC ASSY (VSX-LX60) ........................................................................................................232
11.25 USB ASSY (VSX-LX60)......................................................................................................................236
12. PCB PARTS LIST........................................................................................................................................237