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ORDER NO.
RRV4043
VSX-820-K
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-820-K
VSX-520-K
Model
VSX-820-K VSX-520-K
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Type
CUXCNSM CUXCNSM AC 120 V AC 120 V
Power Requirement
Remarks
For details, refer to "Important Check Points for good servicing". PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, 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 2010
K-IZK MAR. 2010 Printed in Japan
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SAFETY INFORMATION
A
This service manual is intended for qualified service technicians ; it is not meant for the casual do-ityourselfer. 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. WARNING
B
This product may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive harm. Health & Safety Code Section 25249.6 - Proposition 65 NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or be of identical designation.
(slow operating fuse) on PCB indicate that replacement parts must
C
REMARQUE (POUR MODÈLE CANADIEN SEULEMENT) Les symboles de fusible (fusible de type rapide) et/ou de remplacement doivent avoir la même désignation. (FOR USA MODEL ONLY)
(fusible de type lent) sur CCI indiquent que les pièces
1. SAFETY PRECAUTIONS
The following check should be performed for the continued protection of the customer and service technician.
ANY MEASUREMENTS NOT WITHIN THE LIMITS OUTLINED ABOVE ARE INDICATIVE OF A POTENTIAL SHOCK HAZARD AND MUST BE CORRECTED BEFORE RETURNING THE APPLIANCE TO THE CUSTOMER.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the earth ground and all exposed metal parts of the appliance (input/output terminals, screwheads, metal overlays, control shaft, etc.). Plug the AC line cord of the appliance directly into a 120V AC 60 Hz outlet and turn the AC power switch on. Any current measured must not exceed 0.5 mA.
2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related characteristics. These are often not 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. The use of a substitute replacement component which does not have the same safety characteristics as the PIONEER recommended replacement one, shown in the parts list in this Service Manual, may create shock, fire, or other hazards. Product Safety is continuously under review and new instructions are issued from time to time. For the latest information, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Service Manual may be obtained at a nominal charge from PIONEER.
D
E
Device under test Test all exposed metal surfaces
Reading should Leakage not be above current 0.5 mA tester
Also test with plug reversed (Using AC adapter plug as required)
Earth ground
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AC Leakage Test
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VSX-820-K
3 4
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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.
A
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.
D C B
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.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance. Make sure the proper amount is applied.
E
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.
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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VSX-820-K
5 6 7 8
3
1
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3
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CONTENTS
A
B
C
D
E
SAFETY INFORMATION ..........................................................................................................................................................2 1. SERVICE PRECAUTIONS ....................................................................................................................................................5 1.1 NOTES ON SOLDERING ...............................................................................................................................................5 1.2 CAUTION ........................................................................................................................................................................5 2. SPECIFICATIONS .................................................................................................................................................................6 2.1 SPECIFICATIONS...........................................................................................................................................................6 2.2 PANEL FACILITIES .........................................................................................................................................................8 3. BASIC ITEMS FOR SERVICE.............................................................................................................................................16 3.1 CHECK POINTS AFTER SERVICING..........................................................................................................................16 3.2 PCB LOCATIONS .........................................................................................................................................................17 3.3 JIGS LIST......................................................................................................................................................................19 4. BLOCK DIAGRAM...............................................................................................................................................................20 4.1 OVERALL WIRING DIAGRAM......................................................................................................................................20 4.2 OVERALL BLOCK DIAGRAM .......................................................................................................................................22 4.3 POWER SUPPLY and MAIN UCOM BLOCK DIAGRAM ..............................................................................................24 5. DIAGNOSIS.........................................................................................................................................................................26 5.1 DIAGNOSIS FLOWCHART...........................................................................................................................................26 5.2 ADAPTER ERROR MESSAGE.....................................................................................................................................42 5.3 DETECTION CIRCUIT..................................................................................................................................................43 6. SERVICE MODE .................................................................................................................................................................46 6.1 SERVICE MODE...........................................................................................................................................................46 7. DISASSEMBLY....................................................................................................................................................................49 8. EACH SETTING AND ADJUSTMENT ................................................................................................................................59 8.1 HOW TO UPDATE FIRMWARE ....................................................................................................................................59 8.2 IDLE CURRENT ADJUSTMENT ..................................................................................................................................62 9. EXPLODED VIEWS AND PARTS LIST ...............................................................................................................................64 9.1 PACKING SECTION......................................................................................................................................................64 9.2 EXTERIOR SECTION (VSX-820-K) .............................................................................................................................66 9.3 EXTERIOR SECTION (VSX-520-K) .............................................................................................................................70 10. SCHEMATIC DIAGRAM ....................................................................................................................................................74 10.1 INPUT ASSY...............................................................................................................................................................74 10.2 AMP ASSY..................................................................................................................................................................76 10.3 SPEAKER, HEADPHONE and MIC ASSYS...............................................................................................................78 10.4 PORTABLE, PT, HP_GUIDE, CNT1, CNT2, GUIDE_L and GUIDE_R ASSYS..........................................................79 10.5 VIDEO ASSY ..............................................................................................................................................................80 10.6 F-VIDEO, FRONT and FUNCTION ASSYS................................................................................................................82 10.7 MAIN and REG ASSYS ..............................................................................................................................................84 10.8 HDMI ASSY ................................................................................................................................................................86 10.9 DSP ASSY (1/2)..........................................................................................................................................................88 10.10 DSP ASSY (2/2)........................................................................................................................................................90 10.11 USB ASSY (VSX-820-K ONLY).................................................................................................................................92 10.12 BT ASSY ...................................................................................................................................................................94 11. PCB CONNECTION DIAGRAM ........................................................................................................................................95 11.1 INPUT ASSY...............................................................................................................................................................96 11.2 AMP ASSY..................................................................................................................................................................98 11.3 SPEAKER, HEADPHONE, MIC and PORTABLE ASSYS ........................................................................................100 11.4 PT, HP_GUIDE, CNT1, CNT2, GUIDE_L and GUIDE_R ASSYS ............................................................................102 11.5 VIDEO ASSY ............................................................................................................................................................104 11.6 F-VIDEO, FRONT and FNCTION ASSYS ................................................................................................................106 11.7 MAIN and REG ASSYS ............................................................................................................................................110 11.8 HDMI ASSY ..............................................................................................................................................................114 11.9 DSP ASSY ................................................................................................................................................................116 11.10 USB ASSY (VSX-820-K ONLY)...............................................................................................................................118 11.11 BT ASSY .................................................................................................................................................................120 12. PCB PARTS LIST ............................................................................................................................................................121
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1 2
VSX-820-K
3 4
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1. SERVICE PRECAUTIONS
1.1 NOTES ON SOLDERING
· For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit. Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs accompanied by reworking of soldering. · Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 ºC. Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 ºC in general, although the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of the soldering iron. Do NOT use a soldering iron whose tip temperature cannot be controlled. 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.
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1.2 CAUTION
D
· Discharging For more detail, please refer to "7. DISASSEMBLY - 1. Discharging".
· Notes on Ground Points Connection For more detail, please refer to "7. DISASSEMBLY - 2. Notes on Ground Points Connection".
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VSX-820-K
5 6 7 8
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2. SPECIFICATIONS
2.1 SPECIFICATIONS
2.1.1 VSX-820-K
A
B
C
D
E
Accessories
AM loop antenna (E601016000010-IL)
FM wire antenna (E605010070001-IL)
F
Microphone (for Auto MCACC setup) (M040000300200-IL)
iPod cable (L308102013010-IL)
Dry cell batteries (AAA size IEC R03) x2
Remote control (8300758300010-IL)
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1 2
VSX-820-K
3 4
5
6
7
8
2.1.2 VSX-520-K
A
B
C
D
E
Accessories
F
AM loop antenna (E601016000010-IL)
FM wire antenna (E605010070001-IL)
Dry cell batteries (AAA size IEC R03) x2
Remote control (8300758600010-IL)
VSX-820-K
5 6 7 8
7
1
2
3
4
2.2 PANEL FACILITIES
2.2.1 VSX-820-K
A
Front panel
B
C
D
E
F
8
1 2
VSX-820-K
3 4
5
6
7
8
Display
A
B
C
D
E
F
VSX-820-K
5 6 7 8
9
1
2
3
4
A
Remote control
B
C
D
E
F
10
1 2
VSX-820-K
3 4
5
6
7
8
A
B
C
D
E
F
VSX-820-K
5 6 7 8
11
1
2
3
4
2.2.2 VSX-520-K
A
Front panel
B
C
D
E
F
12
1 2
VSX-820-K
3 4
5
6
7
8
Display
A
B
C
D
E
F
VSX-820-K
5 6 7 8
13
1
2
3
4
A
Remote control
B
C
D
E
F
14
1 2
VSX-820-K
3 4
5
6
7
8
A
B
C
D
E
F
VSX-820-K
5 6 7 8
15
1
2
3
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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
A
Items to be checked after servicing / VSX, SC
To keep the product quality after servicing, confirm recommended check points shown below. No.
1
Procedures
Confirm whether the customer complain has been solved. If the customer complain occurs with the particular source, such as Dolby Digital, DTS, AAC, DVD-A and HDMI, input it for the operation check. Check the analog audio playback. (Make the analog connections with a DVD player.) Check the digital audio playback. (Make the digital connections with a DVD player.) Check surround playback. (Select Surround mode and check the multichannel operations via the DSP circuit.) Check the video outputs. (Connect with a DVD player.) Check the tuner (AM and FM) operations.
Check points
The customer complain must not be reappeared. Video, Audio and operations must be normal.
2
B
Each channel audio and operations must be normal.
3
Each channel audio and operations must be normal.
Each channel audio and operations must be normal.
4
5
Video and operations must be normal.
6
C
Audio and operations must be normal.
7
Check the sound from headphone output.
Sound must be normal, without noise.
8
Check the appearance of the product.
No scratches or dirt on its appearance after receiving it for service.
D
See the table below for the items to be checked regarding video and audio. Item to be checked regarding video
Block noise Horizontal noise Flicker Disturbed image (video jumpiness) Too dark Too bright
E
Item to be checked regarding audio
Distortion Noise Volume too low Volume too high Volume fluctuating Sound interrupted
Mottled color
F
16
1 2
VSX-820-K
3 4
5
6
7
8
3.2 PCB LOCATIONS
3.2.1 VSX-820-K
A
SPEAKER ASSY
C
V
BT ASSY
J
CNT2 ASSY
VIDEO ASSY
M
MAIN ASSY HP_GUIDE ASSY
Q H K
S HDMI ASSY T DSP ASSY I CNT1 ASSY A INPUT ASSY G PT ASSY R REG ASSY B AMP ASSY L GUIDE_R ASSY
B
GUIDE_L ASSY
HEADPHONE ASSY FUNCTION ASSY
D P
N F-VIDEO ASSY E MIC ASSY
C
FRONT ASSY
O
U
USB ASSY
D
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. Therefore, when replacing, be sure to use parts of identical designation.
Mark No.
NSP
Description
Part No.
7025HK0916010-IL 7028069111010-IL 7028069112010-IL 7028069113010-IL 7028069114010-IL 7028069115010-IL 7028069116010-IL 7028069117010-IL 7028069118010-IL 7028069119010-IL 7025HK0916013-IL 7028069141010-IL 7025HK0916011-IL 7028069121010-IL 7028069122010-IL 7028069123010-IL
Mark No.
NSP
Description
Part No.
7025HK0916012-IL 7028069131010-IL 7025HK0916014-IL 7028069151010-IL 7025HK0916015-IL 7028069161010-IL 7028069162010-IL 7025HK0916018-IL 7028069191010-IL 7025HK0916016-IL 7028069171010-IL 7025HK0916017-IL 7028069181010-IL 7025HK0916019-IL 7028067523010-IL
LIST OF ASSEMBLIES
1..MAIN ASSY 2..MAIN ASSY 2..PT ASSY 2..CNT2 ASSY 2..HEADPHONE ASSY 2..HP_GUIDE ASSY 2..MIC ASSY 2..GUIDE_L ASSY 2..GUIDE_R ASSY 2..CNT1 ASSY NSP 1..VIDEO ASSY 2..VIDEO ASSY 1..FRONT ASSY 2..FRONT ASSY 2..FUNCTION ASSY 2..F-VIDEO ASSY 1..INPUT ASSY 2..INPUT ASSY 1..SPEAKER ASSY 2..SPEAKER ASSY 1..DSP ASSY 2..DSP ASSY 2..REG ASSY 1..HDMI ASSY 2..HDMI ASSY 1..USB ASSY 2..USB ASSY 1..BT ASSY 2..BT ASSY 1..AMP ASSY 2..AMP ASSY
NSP
E
NSP
NSP
NSP
NSP
NSP
F
NSP
VSX-820-K
5 6 7 8
17
1
2
3
4
3.2.2 VSX-520-K
A
SPEAKER ASSY
C
V
BT ASSY
J
CNT2 ASSY
VIDEO ASSY
M
B
MAIN ASSY HP_GUIDE ASSY
Q H K
S HDMI ASSY T DSP ASSY I CNT1 ASSY A INPUT ASSY G PT ASSY R REG ASSY B AMP ASSY L GUIDE_R ASSY
GUIDE_L ASSY
HEADPHONE ASSY
D F
PORTABLE ASSY
C
FUNCTION ASSY
P
O
FRONT ASSY
D
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. Therefore, when replacing, be sure to use parts of identical designation.
Mark No.
NSP
E
Description
Part No.
7025HK0915010-IL 7028069111060-IL 7028069112010-IL 7028069113010-IL 7028069114010-IL 7028069115010-IL 7028069117010-IL 7028069118010-IL 7028069119010-IL 702806911A010-IL 7025HK0915013-IL 7028069141040-IL 7025HK0915011-IL 7028069121020-IL 7028069122010-IL
Mark No.
NSP
Description
Part No.
7025HK0915012-IL 7028069131020-IL 7025HK0915014-IL 7028069151030-IL 7025HK0915015-IL 7028069161020-IL 7028069162010-IL 7025HK0915016-IL 7028069191020-IL 7025HK0916017-IL 7028069181010-IL 7025HK0916019-IL 7028067523010-IL
LIST OF ASSEMBLIES
1..MAIN ASSY 2..MAIN ASSY 2..PT ASSY 2..CNT2 ASSY 2..HEADPHONE ASSY 2..HP_GUIDE ASSY 2..GUIDE_L ASSY 2..GUIDE_R ASSY 2..CNT1 ASSY 2..PORTABLE ASSY NSP 1..VIDEO ASSY 2..VIDEO ASSY 1..FRONT ASSY 2..FRONT ASSY 2..FUNCTION ASSY 1..INPUT ASSY 2..INPUT ASSY 1..SPEAKER ASSY 2..SPEAKER ASSY 1..DSP ASSY 2..DSP ASSY 2..REG ASSY 1..HDMI ASSY 2..HDMI ASSY 1..BT ASSY 2..BT ASSY 1..AMP ASSY 2..AMP ASSY
NSP
NSP
NSP
NSP
F
NSP
NSP
18
1 2
VSX-820-K
3 4
5
6
7
8
3.3 JIGS LIST
Jigs List
Jig Name 10P extension jig cable 8P extension jig cable Board to board extension jig cable RS-232C update jig 10P to 8P FFC Part No. GGD1628 GGD1629 GGD1673 GGF1642 GGD1676 Remarks Diagnosis (AMP Assy INPUT Assy) Diagnosis (AMP Assy MAIN Assy) Diagnosis (DSP Assy MAIN Assy) Firmware update (RS-232C Rear panel)
A
B
Lubricants and Glues List
Name Silicon grease Silicon adhesive
Part No. GEM1057 GYA1011 (KE40RTV-W)
Remarks Refer to "9.2 EXTERIOR SECTION (VSX-820-K)" and "9.3 EXTERIOR SECTION (VSX-520-K)". Refer to "9.2 EXTERIOR SECTION (VSX-820-K)" and "9.3 EXTERIOR SECTION (VSX-520-K)".
C
D
E
F
VSX-820-K
5 6 7 8
19
1
2
3
4
4. BLOCK DIAGRAM
4.1 OVERALL WIRING DIAGRAM
A
VSX-820-K ONLY
N
F-VIDEO ASSY (7028069123010-IL)
CN701 1,2,3 PIN 4,5 PIN
M
VIDEO ASSY (7028069141010-IL: VSX-820-K) (7028069141040-IL: VSX-520-K)
CN1001 CN1002 CP122 CP123
B
CP110 CP804 CN807 CP117
Q
MAIN ASSY (7028069111010-IL: VSX-820-K) (7028069111060-IL: VSX-520-K)
VS
CN803
CP118
C
CN806
CP120
CNT1 ASSY (7028069119010-IL)
CN121B CP805
D
INPUT ASSY (7028069131010-IL: VSX-820-K) (7028069131020-IL: VSX-520-K)
CN502
I
CN121A
A
CP121
G
PT ASSY (7028069112010-IL)
CN201 CN202 C
BT ASSY (7028069181010-IL)
CP502
V
CP501
CN501
CP125 CP126
F
CN601
CP801
H
CP128 CP107
VSX-820-K ONLY CN106 CN104 CN103 CP301 CP109
E
CP802
HP_GUIDE ASSY (7028069115010-IL)
VSX-820-K ONLY CN201 CN202 CP405 CP403 CP402
AC CORD OR INLET
CN707
E
F
MIC ASSY (7028069116010-IL)
VSX-520-K ONLY CN703
B
CP203
CN401
CP404
C
(7028069151030-IL: VSX-520-K)
F
PORTABLE ASSY (702806911A010-IL)
2
SPEAKER ASSY H AMP ASSY (7028069151010-IL: VSX-820-K) ( (7028067523010-IL)
20
1
VSX-820-K
3 4
5
6
7
8
A
When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST". - The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation. : The power supply is shown with the marked box.
-
CP111
CN702
S
HDMI ASSY (7028069191010-IL: VSX-820-K) CP703 (7028069191020-IL: VSX-520-K)
J
CNT2 ASSY GUIDE_L ASSY (7028069113010-IL) (7028069117010-IL)
B
K
CP112
CN701
CN703A
VSX-820-K ONLY
L
CN200
X-820-K) X-520-K)
CP200
T T 1/2, T 2/2
DSP ASSY (7028069161010-IL: VSX-820-K) (7028069161020-IL: VSX-520-K)
CN205 UPGRADE
GUIDE_R ASSY (7028069118010-IL)
CP114
CN202
CP115
CN203
C
VSX-820-K ONLY CP105
CP116
CN204
CP105
CN207B
CN207A
R
REG ASSY (7028069162010-IL)
CP704 CN807 CN805
D
U
CN802
FPC101
O
CP702
USB ASSY (7028069171010-IL)
CP802 CP703
CP303 CP101 CP301 CP109 CP102
FRONT ASSY (7028069121010-IL: VSX-820-K) (7028069121020-IL: VSX-520-K)
CN706
P
FUNCTION ASSY (7028069122010-IL)
POWER TRANSFORMER
E
AC CORD OR INLET
CN702
D
VSX-820-K) (7028069114010-IL) VSX-520-K)
VSX-820-K
5 6 7 8
HEADPHONE ASSY
F
21
1
2
3
4
4.2 OVERALL BLOCK DIAGRAM
A
S
BD (VSX-820-K ONLY) DVD(VSX-820-K) BD(VSX-520-K) TV/SAT(VSX-820-K) DVD(VSX-520-K) DVR/VCR(VSX-820-K) TV/SAT(VSX-520-K)
HDMI ASSY
U USB ASSY
MAIN ASSY
73 HDMI OUT 76 67 71 69
B
VSX-820-K ONLY
F_AUX L
65
59 63 61 79
86 84 82 72 75 66
VSX-820-K ONLY
VSX-820-K ONLY
F_AUX R
70 68 64
58 62 60 78
85 83 81
Q
C
MAIN ASSY
D
E
T V
DSP ASSY
INPUT ASSY
E
BT ASSY
MAIN ASSY INPUT ASSY
MIC ASSY
VSX-820-K ONLY
F
INPUT ASSY
PORTABLE ASSY
VSX-520-K ONLY
F
INPUT ASSY
22
1 2
VSX-820-K
3 4
5
6
7
8
VSX-820-K ONLY
O
FRONT ASSY
MAIN ASSY
A
VSX-520-K ONLY
B AMP ASSY
MAIN ASSY
B
A INPUT ASSY
VSX-820-K ONLY
C
SPEAKER ASSY
C
D
G
PT ASSY
VSX-820-K ONLY
E
VIDEO INPUT ASSY ASSY
N F-VIDEO ASSY
VSX-820-K ONLY
D HEADPHONE ASSY
The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
SPEAKER ASSY
F
M VIDEO ASSY
VSX-820-K
5 6 7
23
8
1
2
3
4
4.3 POWER SUPPLY and MAIN UCOM BLOCK DIAGRAM
A
Q MAIN ASSY
S1(AMP B+/B-)
B
S2(+12V,-12V)
MAIN TRANS
C
S3(DSP, HDMI)
R
REG ASSY
AC CORD
D
S4(DIR/CODEC, HDMI, USB)
VSX-820-K ONLY
S4(FLT)
E
SUB TRANS
F
24
1 2
VSX-820-K
3 4
5
6
7
8
VSX-820-K ONLY INPUT ASSY
A
B
VSX-820-K ONLY
C
R
REG ASSY
D
E
The > mark found on some component parts indicates the importance of the safety factor of the part. Therefore, when replacing, be sure to use parts of identical designation.
F
VSX-820-K
5 6 7 8
25
1
2
3
4
5. DIAGNOSIS
5.1 DIAGNOSIS FLOWCHART
A
[1] DSP TROUBLESHOOTING
Step 0: Preliminary confirmation
Confirm the following items before checking
Step 3: Regulator IC
REG101, REG102 (Pin 3) (to chassis)
Do screws of COAX Jack securely tighten? OR connect GND wire of DSP JIG B'D to chassis. Yes
B
No
Tighten screws securely.
Is the voltage of around 3.3 V input? Yes
No Check the REG101, REG102 and MAIN Assy Note: REG101, REG102 is made of parallel connection.
To Step 1
REG101, REG102 (Pin 2) (to chassis)
Step 1: BtoB connector, wire
CN200,CN202,CN203, CN204,CP105 BtoB connector, wire
Is the voltage of 1.2 V output? Yes To Step 4
No
Replace REG101 and REG102.
*The DSP IC CORE power of DSP Assy
C
Are the connectors securely inserted? Yes To Step 2
No Turn the power off and insert the connectors securely.
Step 4: X'tal
*CP105 connectors doesn't connection in case of DSP JIG B'D use. IC109 (Pin 6, 7)
Is there a 24.576 MHz output? Yes
No Check the path to pins 6, 7 of IC109. Replace XTAL101.
Step 2: Regulator IC
D
IC102 (Pin 17)
XMCK
REG103 (Pin 3)
(to chassis) Is there a 24.576 MHz input? Yes To Step 5 (to chassis) No Check the path to XTAL101.
Is the voltage of around 5 V input? Yes REG103 (Pin 2)
No Check the REG103 and MAIN Assy.
E
Is the voltage of 3.3 V output? Yes ZD200 cathode
No
Replace REG103.
*The I/O power of DSP Assy is OK.
Is the voltage of 2.5 V output? Yes
F
No Check the ZD200 2.4 VB and IC106.
To Step 3
*The IC106 power of DSP Assy
26
1 2
VSX-820-K
3 4
5
6
7
8
Step 5: DIR
Check that the S/PDIF signal is output. Check that changes by pulling out and inserting the digital input lines. IC110 (Pins 3, 5) OPTICAL (Pin 3: OPT2, Pin 5: OPT1) IC109 (Pin 15) DIR_BCK (Bit clock)
A
Can No Check the path to OUTPUT PIN of observe the JACK105, JACK106. digital signal ? (0 V 3.3 V) Yes IC109 (Pins 61, 63) OPTICAL (Pin 61: OPT2, Pin 63: OPT1) Can observe the digital signal ? Yes
Is there a bit clock output? Yes
No
Replace IC109.
B
(0 V 3.3 V)
No
Check the path to pins 4, 6 of IC110 or replace IC110.
Switch
IC106 (Pin 4) DAI_MCK (Master clock)
(0 V 3.3 V) COAX
IC109 (Pin 67) Can observe the digital signal ? Yes
Is there a master clock output? Yes IC106 (Pin 7)
No (0 V 2.5 V) DAI_LRCK (LR clock)
C
No
Check the path to pins 10-13 of IC110 or replace IC110.
(0 V 3.3 V) Is there a LR clock output? Yes IC106 (Pin 9) DAI_BCK (Bit clock) No (0 V 2.5 V)
VSX-820-K ONLY Check that it changes in the Playback and Pause modes of the USB (iPod). IC109 (Pin 71) From USB Assy
Can No observe the Check the path to CP105 connector. digital signal ? No (0 V 3.3 V) Yes Check the USB Assy. Check that the data and clock signals are output. IC109 (Pin 10) DIR_MCK (Master clock)
Is there a bit clock output? Yes
No (0 V 2.5 V)
D
Is the Is there No No voltage of PDN a master clock IC109-pin 31 output? 3.3 V? (0 V 3.3 V) Check the MAIN Assy. Yes IC109 (Pin 16) DIR_LRCK (LR clock)
Is the voltage of IC106-pin 1 0 V? Yes
No Check the path between IC106-pin 1 and MAIN Assy. *IC106 Pin 1 0 V : DIR 3.3 V : HDMI
E
Replace IC106.
Is there a LR clock output? Yes
No
Replace IC109.
To Step 6
(0 V 3.3 V) DIR_SDTO (Data)
IC109 (Pin 14)
Is there a data output? Yes
No
Replace IC109.
F
(0 V 3.3 V)
VSX-820-K
5 6 7 8
27
1
2
3
4
A
Step 6: DSP output (digital)
Digital output of each CH when inputting the digital signal with audio. IC109 (Pin 18) DSP_BCK (Bit clock)
Is there a bit clock input? Yes
No (0 V 3.3 V) DSP_LRCK (LR clock)
IC109 (Pin 19)
B
Is there a LR clock output? Yes
No (0 V 3.3 V) Front L/R data
IC109 (Pin 28)
Is there a data input?
C
No (0 V 3.3 V)
Yes IC109 (Pin 27) Surround L/R data
Is there a data input? Yes IC109 (Pin 26)
No (0 V 3.3 V) Center/LFE data
D
Is there a data input? Yes IC109 (Pin 25)
No (0 V 3.3 V) Surround back L/R data
Is there a data input? Yes
No (0 V 3.3 V) Check the path between IC102 and data & address lines. SDRAM (IC100), FLASH ROM (IC101)
E
To Step 7
F
28
1 2
VSX-820-K
3 4
5
6
7
8
Step 7: Codec output (analog)
Analog output of each CH when inputting the digital signal with audio.
A
IC109 (Pin 49)
Front R out
Analog output of each CH when inputting the digital signal (- dB (no signal)). IC109 (Pin 49) Front R out
Is there a audio signal output? Yes IC109 (Pin 47)
No
Replace IC109.
Front L out
Is the output 2.5 V fixing? Yes
No
Replace IC109.
B
Is there a audio signal output? Yes IC109 (Pin 45)
No
Replace IC109.
IC109 (Pin 47)
Front L out
Surround R out
Is the output 2.5 V fixing? Yes
No
Replace IC109.
Is there a audio signal output? Yes IC109 (Pin 43)
No
Replace IC109.
IC109 (Pin 45)
Surround R out
Is the output 2.5 V fixing? Surround L out Yes
No
Replace IC109.
C
Is there a audio signal output? Yes IC109 (Pin 41)
No
Replace IC109.
IC109 (Pin 43)
Surround L out
Is the output 2.5 V fixing? Center out Yes
No
Replace IC109.
Is there a audio signal output? Yes IC109 (Pin 39)
No
Replace IC109.
IC109 (Pin 41)
Center out
D
LFE out
Is the output 2.5 V fixing? Yes
No
Replace IC109.
Is there a audio signal output? Yes
No
Replace IC109.
IC109 (Pin 39)
LFE out
Is the output 2.5 V fixing? Yes End
No
Replace IC109.
E
F
VSX-820-K
5 6 7 8
29
1
2
3
4
A
[2] HDMI TROUBLESHOOTING
1. Causes for noncompletion of HDMI authentication between the source equipment and this unit (the HDMI indicator is unlit or flashes)
HDMI Simple Diagnosis
Causes for no display or sound from the monitor
OK
B
Replace the HDMI cable. NG Connect the source equipment (player) to the Sink equipment (monitor) directly. NG OK Replace the Player. OK
Replace the HDMI cable.
Repare the Receiver.
Repare the Player.
C
NG OK Replace the Monitor. Repare the Monitor.
D
HDMI Troubleshooting
Step 0: Preliminary confirmation
Confirm the following items before checking
Step 1: Connect the HDMI equipment
Source equipment: Connect a DVD player to BD or DVD or TV or DVR.
Do screws of COAX jack securely tighten? Yes
E
No
Tighten screws securely.
Sink equipment: Connect a TV to HDMI OUT.
To Step 1
POWER ON
Turn on the power of the Receiver and equipments which was connected with HDMI.
Function switch (BD or DVD or TV or DVR)
Switch the function that HDMI was assigned. Factory shipments setting: For VSX-520-K For VSX-820-K HDMI 1: BD HDMI 1: BD HDMI 2: DVD HDMI 2: DVD HDMI 3: TV/SAT HDMI 3: TV/SAT HDMI 4: DVR/VCR To Step 2
F
30
1 2
VSX-820-K
3 4
5
6
7
8
Step 2: Power supply
CN701 (Pin 1) SUB_ON IC704 (Pin 3) Is the voltage 0 to 3.3 V? Yes CN701 (Pin 9) SUB MICOM 3.3V No Diagnose the MAIN Assy. Is the voltage 3.3 V? Yes IC704 (Pin 2) Is the voltage 3.3 V? Yes CN701 (Pin 12) HDMI_5V No Diagnose the MAIN Assy. Is the voltage 1.8 V? Yes No Is IC704 abnormally hot? Yes The output and GND may be short-circuited. Check the path between them. No Replace IC704. HDMI 1.8V No Check the parts and patterns in the path. HDMI 3.3V
A
B
Is the voltage 5 V? Yes
No
Diagnose the MAIN Assy.
IC701 (Pin 3)
HDMI 3.3V
C
CN701 (Pins 13, 14) HDMI_3.3V Is the voltage 3.3 V? Yes IC701 (Pin 2) HDMI 1.2V No Check the parts and patterns in the path.
Is the voltage 3.3 V? Yes Q711 (collector)
No
Diagnose the MAIN Assy.
SUB MICOM 3.3V
Is the voltage 3.3 V? Yes
No
Is Q711 base voltage 2.6 V? Yes Check the parts and patterns in the path. Replace Q711, IC706, etc.
No
Is the voltage 1.2 V? Yes
No
Is IC701 abnormally hot? Yes
No Replace IC701.
D
The output and GND may be short-circuited. Check the path between them.
To Step 3
Is Q714 No Replace Q714. collector voltage 0 V? (base is 3.3 V) Yes Check the parts and patterns in the path Q711, Q714, etc.
E
F
VSX-820-K
5 6 7 8
31
1
2
3
4
A
Step 3: Diagnosis
Each data lines confirmation checks it after standby OFF/ON. CN701 (Pin 5) SUB_RESET IC703 (Pin 21) Is the voltage 0 to 3.3 V? Yes No Diagnose the MAIN Assy. Is the voltage 0 to 3.3 V? Yes SUB_PDN IC702 (Pin 25) Is the voltage 0 to 3.3 V? Yes CN701 (Pin 3) MAIN_IRQ No Diagnose the MAIN Assy. Is there a data 0 to 3.3 V? Yes To Step 4 Diagnose the MAIN Assy. No Check the parts and patterns in the path of pin 89 of IC706. No Check the parts and patterns in the path of pin 87 of IC706. HR_RST
B
CN701 (Pin 4)
C
Is there a data input? (0 to 3.3 V) Yes CN701 (Pin 2)
No
SUB_IRQ
Step 4: X'TAL
IC706 (Pin 15)
Is there a data output? (0 to 3.3 V) Yes CN701 (Pin 8)
D
No
Check the parts and patterns in the path of IC706.
Is there a 12 MHz output? Yes IC706 (Pin 13)
No
Replace IC706 or X702.
CSCK_MAIN
Is there a data input? (0 to 3.3 V) Yes CN701 (Pin 7)
No
Diagnose the MAIN Assy. Is there a 12 MHz output? No Check the path to pin13 of IC706. Replace IC706.
SCDO_MAIN
Yes IC703 (Pin 5)
Is there a data input? (0 to 3.3 V)
E
No
Diagnose the MAIN Assy. Is there a 27 MHz output? No Replace IC703 or X701.
Yes CN701 (Pin 6) SCDI_MAIN
Yes IC703 (Pin 4)
Is there a data output? (0 to 3.3 V) Yes
No
Check the parts and patterns in the path of IC706. Is there a 27 MHz output? Yes No Check the path to pin4 of IC703. Replace IC703.
F
To Step 5
32
1 2
VSX-820-K
3 4
5
6
7
8
Step 5: IN/OUTPUT Diagnosis (VSX-820-K)
* When connected the equipment to IN1(BD); JACK701 (Pin 18) +5V_R3
Step 5: IN/OUTPUT Diagnosis (VSX-520-K)
* When connected the equipment to IN1(BD); JACK703 (Pin 18) +5V_R3
A
Is the voltage 5 V? Yes
No Check the JACK705. If JACK705 is failure, replace JACK705.
Is the voltage 5 V? Yes
No Check the JACK703. If JACK703 is failure, replace JACK703.
* When connected the equipment to IN2(DVD); +5V_R2
* When connected the equipment to IN2(DVD); +5V_R2
B
JACK703 (Pin 18)
JACK704 (Pin 18)
Is the voltage 5 V? Yes
No Check the JACK703. If JACK703 is failure, replace JACK703.
Is the voltage 5 V? Yes
No Check the JACK704. If JACK704 is failure, replace JACK704.
* When connected the equipment to IN3(TV/SAT); +5V_R1
* When connected the equipment to IN3(TV/SAT); +5V_R1
JACK704 (Pin 18)
JACK705 (Pin 18)
Is the voltage 5 V? Yes
No
Check the JACK704. If JACK704 is failure, replace JACK704.
Is the voltage 5 V? Yes To Step 6
No
Check the JACK705. If JACK705 is failure, replace JACK705.
C
* When connected the equipment to IN4(DVR/VCR); +5V_R0
JACK705 (Pin 18)
Is the voltage 5 V? Yes To Step 6
No
Check the JACK705. If JACK705 is failure, replace JACK705.
D
E
F
VSX-820-K
5 6 7 8
33
1
2
3
4
A
Step 6: Hot plug detect (VSX-820-K)
JACK702 (Pin 19) HPD_SINK
Step 6: Hot plug detect (VSX-520-K)
JACK702 (Pin 19) HPD_SINK
Is the voltage 5 V?
No Check the JACK702. If JACK702 is failure, replace JACK702.
Is the voltage 5 V? Yes JACK703 (Pin 19) Is the voltage 5 V when selecting IN1? Yes
No Check the JACK702. If JACK702 is failure, replace JACK702.
Yes * When connected the equipment to IN1 (BD); JACK701 (Pin 19) HPD3
B
* When connected the equipment to IN1 (BD); HPD2
Is the voltage 5 V when selecting IN1? Yes
No
Check the JACK701 and IC703. If JACK701 or IC703 is failure, replace JACK701 or IC703.
No
Check the JACK703 and IC703. If JACK703 or IC703 is failure, replace JACK703 or IC703.
* When connected the equipment to IN2 (DVD); JACK703 (Pin 19) HPD2 Is the voltage 5 V when selecting IN2?
C
* When connected the equipment to IN2 (DVD); JACK704 (Pin 19) HPD1 Is the voltage 5 V when selecting IN2?
No
Check the JACK703 and IC703. If JACK703 or IC703 is failure, replace JACK703 or IC703.
No
Check the JACK704 and IC703. If JACK704 or IC703 is failure, replace JACK704 or IC703.
Yes * When connected the equipment to IN3 (TV/SAT); JACK704 (Pin 19) HPD1 Is the voltage 5 V when selecting IN3?
Yes * When connected the equipment to IN3 (TV/SAT); JACK705 (Pin 19) HPD0 Is the voltage 5 V when selecting IN3? Yes To Step 7
No
Check the JACK704 and IC703. If JACK704 or IC703 is failure, replace JACK704 or IC703.
No
Check the JACK705 and IC703. If JACK705 or IC703 is failure, replace JACK705 or IC703.
Yes * When connected the equipment to IN4 (DVR/VCR); JACK705 (Pin 19) HPD0
D
Is the voltage 5 V when selecting IN4? Yes To Step 7
No
Check the JACK705 and IC703. If JACK705 or IC703 is failure, replace JACK705 or IC703.
E
F
34
1 2
VSX-820-K
3 4
5
6
7
8
Step 7: SDA /SCL (VSX-820-K)
IC702 (Pin 47) Does a signal output in constant period (0 to 5 V) ? Yes IC702 (Pin 46) Does a clock output in constant period (0 to 5 V) ? Yes IC702 (Pin 49) SDA (HDMI OUT) IC703 (Pin 39) No Check the JACK702 and IC702. If JACK702 or IC702 is failure, replace JACK702 or IC702. SCL2 (HDMI IN2 (DVD))
A
SCL (HDMI OUT)
Is there a same No Check the IC702 and JACK703. signal as IC702-pin 48 If IC702 or JACK703 is failure, when selecting replace IC702 or JACK703. IN2? (0 to 5 V) Yes * When connected the equipment to IN3 (TV/SAT):
B
No Check the JACK702 and IC702. If JACK702 or IC702 is failure, replace JACK702 or IC702.
IC703 (Pin 36)
SDA1 (HDMI IN3 (TV/SAT))
SDA_SINK
Is there a same No Check the IC702 and JACK704. signal as IC702-pin 49 If IC702 or JACK704 is failure, when selecting replace IC702 or JACK704. IN3? (0 to 5 V) Yes IC703 (Pin 35) SCL1 (HDMI IN3 (TV/SAT))
C
Is Check the IC702 and IC703. there a same No If IC702 or IC703 is failure, signal as IC703-pin 24 (0 to 3.3V) replace IC702 or IC703. ? Yes IC702 (Pin 48) SCL_SINK
Is there a same No Check the IC702 and JACK704. signal as IC702-pin 48 If IC702 or JACK704 is failure, when selecting replace IC702 or JACK704. IN3? (0 to 5 V) Yes * When connected the equipment to IN4 (DVR/VCR): IC703 (Pin 32) SDA0 (HDMI IN4 (DVR/VCR))
Is Check the IC702 and IC703. there a same No If IC702 or IC703 is failure, signal as IC702-pin 23 (0 to 3.3V) replace IC702 or IC703. ? Yes * When connected the equipment to IN1(BD); IC703 (Pin 44) SDA3 (HDMI IN1(BD))
Is there a same No Check the IC702 and JACK701. signal as IC702-pin 49 If IC702 or JACK701 is failure, when selecting replace IC702 or JACK701. IN1? (0 to 5 V) Yes IC703 (Pin 43) SCL3 (HDMI IN1(BD))
Is there a same No Check the IC702 and JACK705. signal as IC702-pin 49 If IC702 or JACK705 is failure, when selecting replace IC702 or JACK705. IN4? (0 to 5 V) Yes IC703 (Pin 31) SCL0 (HDMI IN4 (DVR/VCR))
D
Is there a same No Check the IC702 and JACK701. signal as IC702-pin 48 If IC702 or JACK701 is failure, when selecting replace IC702 or JACK701. IN1? (0 to 5 V) Yes * When connected the equipment to IN2 (DVD): IC703 (Pin 40) Is there a same signal as IC702-pin 49 when selecting IN2? Yes SDA2 (HDMI IN2 (DVD))
Is there a same No Check the IC702 and JACK705. signal as IC702-pin 48 If IC702 or JACK705 is failure, when selecting replace IC702 or JACK705. IN4? (0 to 5 V) Yes To Step 8
E
No Check the IC702 and JACK703. If IC702 or JACK703 is failure, replace IC702 or JACK703.
F
VSX-820-K
5 6 7 8
35
1
2
3
4
A
Step 7: SDA /SCL (VSX-520-K)
IC702 (Pin 47) Does a signal output in constant period (0 to 5 V) ? Yes IC702 (Pin 46) SDA (HDMI OUT) IC703 (Pin 35) No Check the JACK702 and IC702. If JACK702 or IC702 is failure, replace JACK702 or IC702. SCL1 (HDMI IN2 (DVD))
SCL (HDMI OUT)
Is there a same No Check the IC702 and JACK704. signal as IC702-pin 48 If IC702 or JACK704 is failure, when selecting replace IC702 or JACK704. IN2? (0 to 5 V) Yes * When connected the equipment to IN3 (TV/SAT):
B
Does a clock output in constant period (0 to 5 V) ? Yes IC702 (Pin 49)
No Check the JACK702 and IC702. If JACK702 or IC702 is failure, replace JACK702 or IC702.
IC703 (Pin 32)
SDA0 (HDMI IN3 (TV/SAT))
SDA_SINK
Is there a same No Check the IC702 and JACK705. signal as IC702-pin 49 If IC702 or JACK705 is failure, when selecting replace IC702 or JACK705. IN3? (0 to 5 V) Yes IC703 (Pin 31) SCL0 (HDMI IN3 (TV/SAT))
C
Is Check the IC702 and IC703. there a same No If IC702 or IC703 is failure, signal as IC703-pin 24 (0 to 3.3V) replace IC702 or IC703. ? Yes IC702 (Pin 48) SCL_SINK
Is Check the IC702 and IC703. there a same No If IC702 or IC703 is failure, signal as IC702-pin 23 (0 to 3.3V) replace IC702 or IC703. ? Yes * When connected the equipment to IN1 (BD): IC703 (Pin 40)
D
Is there a same No Check the IC702 and JACK705. signal as IC702-pin 48 If IC702 or JACK705 is failure, when selecting replace IC702 or JACK705. IN3? (0 to 5 V) Yes To Step 8
SDA2 (HDMI IN1 (BD))
Is there a same signal as IC702-pin 49 when selecting IN1? Yes IC703 (Pin 39)
No Check the IC702 and JACK703. If IC702 or JACK703 is failure, replace IC702 or JACK703.
Step 8: TMDS
IC702 (Pins 30,31,33,34,36,37,39,40) TMDS OUTPUT
SCL2 (HDMI IN1 (BD))
E
Is there a same No Check the IC702 and JACK703. signal as IC702-pin 48 If IC702 or JACK703 is failure, when selecting replace IC702 or JACK703. IN1? (0 to 5 V) Yes * When connected the equipment to IN2 (DVD): IC703 (Pin 36) SDA1 (HDMI IN2 (DVD))
Are there signals(approx. 0.5 Vp-p) in all lines? Yes End
No
Check the IC702 or IC703. If IC702 or IC703 is failure, replace IC702 or IC703.
Is there a same No Check the IC702 and JACK704. signal as IC702-pin 49 If IC702 or JACK704 is failure, when selecting replace IC702 or JACK704. IN2? (0 to 5 V) Yes
F
36
1 2
VSX-820-K
3 4
5
6
7
8
[3] USB iPod TROUBLESHOOTING (VSX-820-K ONLY)
iPod Error Message
When the abnormality occurred, the error messages are indicated. Key Sequence Change Error 1 Communication Error When the communication is not possible normally. [Procedure] Disconnect a connector once, then connect a connector surely again after the main menu of the iPod was displayed. Nevertheless, reset the iPod when the iPod does not operate normally. Error 2 Generation Error (in the Type 1 operation only) When the non-support model for the iPod Mode Type 1 was connected. When the non-support function will be executed. When a version of the iPod software is old. [Procedure] Change the iPod Mode to Type2. Update the iPod software to the newest version.
i P o d i Po d / U SB E r r o r 1
A
OSD Display
FL Display
I / U
ERR1
B
i P o d i Po d / U SB E r r o r 2
I / U
ERR2
C
Error 3 Loading Error When there is no response from the iPod. [Procedure] The power is shut off once, then the unit back on. Reset the iPod. Update the iPod software to the newest version.
i P o d
i Po d / U SB
E r r o r 3
I / U
ERR3
Error 4 OverHeat Error
i P o d
D
i Po d / U SB E r r o r 4
I / U
ERR4
No Track No Music Track Cautuion When a track does not exist in the selected category [Procedure] Select another category.
i P o d
N o
T r a c k
NO
TRACK
E
F
VSX-820-K
5 6 7 8
37
1
2
3
4
A
iPod Troubleshooting
Step 0: Preliminary confirmation
Confirm the following items before checking. REG1 (pin 2) Do screws of COAX jack securely tighten ? Yes No Tighten screws securely. Is the voltage 1.8 V output? Yes No Is REG1 abnormally hot? Yes No 1.8 V output
B
To STEP 1
Replace REG1.
The output and GND may be short-circuited. Check the path between them.
Step 1: Power supply
CN807 (pins 1, 3) 5 V input
C
IC805 (pin 5)
5 V input
Is the voltage 5V? Yes
No
Is there any loose connection CP105 of MAIN Assy? Yes
No
Is the voltage 5 V input? Yes
No
Is pin 4 (EN) of IC805 Low? Yes
No
Check the MAIN Assy.
Is pin 3 (OC) of IC805 high? Yes
No
To STEP 1 REG2 (pin 3) (to chassis)
Replace IC805.
D
Is the voltage of 5 V input? Yes REG2 (pin 2) Is the voltage 3.3 V output? Yes
No
Check the patterns in the path.
Check the parts and patterns in the path (JACK801).
3.3 V output (to chassis) IC805 (pin 1) No Is REG2 abnormally hot? Yes No Is the voltage 5 V output? Yes The output and GND may be short-circuited. Check the path between them. To STEP 2 No Check the parts and patterns in the path of JACK801. USB Bus power
Replace REG2.
E
REG1 (pin 3)
5 V input
Is the voltage 5V?
F
No
Check the patterns in the path.
Yes
38
1 2
VSX-820-K
3 4
5
6
7
8
Step 2: Operation of USB Media control IC
IC801 (pins 54,55) XIN/XOUT
A
Is there a 12 MHz output? Yes
No
Is CP802 pins 1, 2 (RESET, RDY) high? Yes
No
Check CP105, CN802 of FRONT and MAIN Assy. Yes
No
Check the path to MAIN Assy.
Check the parts and patterns in the path. Replace XTAL1, etc. CP802 USB_RX, TX (Pins 4, 3)
B
Do USB_RX and USB_TX communication with main micom? Yes
No
USB_RX and USB_TX should be high during operation. Check the pattern in the path of the FRONT and MAIN Assys.
C
JACK801 (pins 2,3) D+/D-
D+ and D- should have waveform during normal condition. Check the pattern in the path of IC801, etc.
Fig. D+
Fig. D-
Are there the waveforms like figure? No
Yes
Operation of IC801 is OK. To STEP 3 X: 1 S/div, Y: 2 V/div Initial communication [SDCLK] X: 1 S/div, Y: 2 V/div
D
IC801 (pin 44) -> IC803 (pin 38)
After turning the power on and several seconds later, does SDCLK change 12 MHz to 80 MHz?
No
DATA and ADDRESS lines between SDRAM (IC803), FLASH ROM (IC802) and IC801 are may not be connected.
Yes Operation of IC801 is OK. To STEP 3
E
F
VSX-820-K
5 6 7 8
39
1
2
3
4
A
Step 3: Operation of iPod (Authentication process)
IC804 (pins 12, 13) SCL, SDA (I2C between IC801 and IC804)
Do SCL and SDA communicate? Yes
B
No
When SCL and SDA are normal operation = High (3.3 V), No connect iPod, and communicate it about 10 seconds later (authentication starts). And communicate it about 60 seconds later (authentication is complete).
Does RESET_AUTH (pin 4) reset it? High after the reset Yes Replace IC804.
No Check the path between IC801 (pin 120).
Operation of IC804 is OK. To STEP 4
C
Step 4 Audio Out check
CN805 (pin 1) S/PDIF output
Is there a S/PDIF signal ? Yes
No
Check the path between IC801 (pin 105) Yes Check the parts and pattern of CN805 and IC801.
No
Replace IC801.
D
Refer to the [1] DSP TROUBLESHOOTING.
E
F
40
1 2
VSX-820-K
3 4
5
6
7
8
[4] BT (BlueTooth) TROUBLESHOOTING
Step 0: Preliminary confirmation
Confirm the following items before checking. CN500 (pin 17) 5 V input
A
Do screws of Plate_Screw securely tighten ? Yes To STEP 1
No
Tighten screws securely.
Is the voltage 5 V? Yes To STEP 3
No
Check the patterns in the path.
B
Step 1: BT_DET
CP501 (pin 2) BT_DET
Step 3: BT_DET
CP501 (pin 2) BT_DET
Is the voltage 0 V? Yes To STEP 2
No
Check the patterns in the path and MAIN Assy.
Is the voltage 0.7 V to 12 V ? Yes To STEP 4
No
Check the patterns in the path and MAIN Assy.
C
Step 2: Power supply
CP501 (pin 4) 5 V input
Is the voltage 5V? Yes
No
Is there any loose connection CN501 of MAIN Assy? Yes To STEP 2
No
Step 4: Communicaion
CP501 (pins 6,7) BT_RXD, BT_TXD
Check the patterns inthe path and MAIN Assy.
IC500 (pin 1)
(to chassis)
Do BT_RXD and BT_TXD communicate with the main UCOM? Yes
No
BT_RXD and BT_TXD should be high during operation. Check the patterns in the path and MAIN Assy.
D
Is the voltage of 5 V input? Yes IC500 (pin 6) Is the voltage 5 V output? Yes
No
Check the patterns in the path.
To STEP 5
5 V output (to chassis) Is IC500-pin 3 (EN) 3.3 V? 3.3 V
Step 5: Audio Out check
CP502 (pins 1,4) 0V Check the patterns in the path and replace IC500. Is there a audio signal? Yes Check the INPUT Assy. No
E
No
Check the parts in the path.
Is 3.3 V Q500-base (BT_ON/OFF/CE) 0 V? Check the patterns 0V in the path and replace Q500. Check the MAIN Assy and CP501 (8P).
F
VSX-820-K
5 6 7 8
41
1
2
3
4
5.2 ADAPTER ERROR MESSAGE
A
Functional Name
Adapter port overcurrent detection
Outline
When the BT adapter is inserted in Adapter port, turn off the power of the Adapter port forcibly when it detects an overcurrent. And display ERROR state in FL.
Basic Operation
Front Key Sequence Change
When the overcurrent is detected
Character Display
1 2 3 4 5 6 7 8 1 2
Time (sec.)
B
Icon Display LED Display (FL)
ADP
*1
ERR
The display continues until the power is turned off.
Check it after turning the power once off then back on again, and it becomes the normal operation if normal.
*1 Return the "ADP ERR" display to the normal display if you change it into other FUNCTION only in the APAPTER PORT FUNCTION. Also display "ADP ERR" if the APAPTER PORT FUNCTION is ERROR state.
C
Explain Operation Detail
For detection method · Confirm a detection port at intervals of 20 msec to 50 msec (*2), and judge it as an overcurrent when you detected an error consecutively three times. *2 It is assumed that it is fixed value of the 20 msec to 50 msec degree.
D
E
F
42
1 2
VSX-820-K
3 4
5
6
7
8
5.3 DETECTION CIRCUIT
[1] DC Protection Circuit Diagram
A
MAIN ASSY
Q
B
C
G
PT ASSY
D
C
SPEAKER ASSY
E
AMP ASSY
F
B
VSX-820-K
5 6 7 8
43
1
2
3
4
A
[2] Overload Protection Circuit Diagram
B
C
D
E
F
44
1 2
B
AMP ASSY
G
PT ASSY
Q
MAIN ASSY
VSX-820-K
3 4
G
PT ASSY
5
C231
C232
R235
C110
C113
R236
[3] Power DC Protection Circuit Diagram
R220 22k
R219 47k
C211
C225
C222
5
Q
MAIN ASSY
IC114 KIA7805API +5V R237
6
6
-5V IC102 KIA7905PI HDMI_3.3V R218 22k Q203 KTC107S
VSX-820-K
VSX-820-K ONLY
E D C
7
7 B A
Q106 KTB778
R105
IC111 KIA78R33API
8
8
45
F
1
2
3
4
6. SERVICE MODE
6.1 SERVICE MODE
A
[1] Display mode for numbers of protection detections
[Purpose]
The numbers of detections for various protection processes are displayed.
[How to enter/exit]
During Standby mode, simultaneously press and hold the [PRESET ] and [STANDBY/ON] keys for 2 seconds to enter this mode. The display will return to the normal indication when no key operation is performed for 5 seconds.
B
[Basic operations]
Key Operation FL Display Time (sec.) Description of Indications
(STANDBY state) [PRESET ] + [STANDBY/ON] (Initial display) [ENTER key] *2 [ENTER key] [ENTER key] (Initial display) Counter *2 Counter 5 (-> normal) *1 Number of abnormal-temperature error detections 5 (-> normal) *1 Number of OVERLOAD error detections
*2 Counter
5 (-> normal) *1
Number of DC error detections
C
*1 "5 (-> normal)" denotes that the display will return to the normal indication when no key operation is performed for 5 seconds. *2 Variable range: 0-255
D
E
F
46
1 2
VSX-820-K
3 4
5
6
7
8
[2] Reset mode for numbers of protection detections
[Purpose]
For clearing all the counts of protection detections. (This mode resets the counts of protection detections.)
A
[How to enter/exit]
During Standby mode, simultaneously press and hold the [STANDARD SURROUND] and [STANDBY/ON] keys for 10 seconds to enter this mode. The display will return to the normal indication when no key operation is performed for 5 seconds.
B
[Basic operations]
Key Operation FL Display Time (sec.) Description of Indications
(STANDBY state) [STANDARD SURROUND] + [STANDBY/ON] (press and hold the keys for 10 seconds.) [ENTER key] (Counter Clear end) 5 (-> normal) *1
5 (-> normal) *1
C
(Normal display) *2
usually
*1 "5 (-> normal)" denotes that the display will return to the normal indication when no key operation is performed for 5 seconds. *2 Indication when the BD function is selected
D
[Detailed explanations]
1. When the procedures for Reset mode for numbers of protection detections are completed, all the counters will be reset to "000." 2. Prohibitions: The protection detection counts cannot be cleared (reset to 000) with the MEMORY CLEAR process. They can only be cleared when the procedures of Reset mode are completed.
E
F
VSX-820-K
5 6 7 8
47
1
2
3
4
A
[3] The unit's operation when a error is detected
[Purpose]
· The unit's operation when a DC/OVER/TEMP error is detected is described here. · How to cancel the status after detection of a DC error is described here, because no key input will be accepted after a DC error detection.
[Basic operations] 3.1 DC (AMP is abnormality) error detection
Key Operation
B
FL Display
Time (sec.)
usually
Description of Indications
Normal display
(Normal display) (DC detection) (Auto) (RECEIVER POWER OFF) *1, *2
3.2 OVERLOAD (overcurrent) error detection
Key Operation
C
FL Display
Time (sec.)
usually
Description of Indications
Normal display
(Normal display) (OVERLOAD detection) (Auto) (RECEIVER POWER OFF) *1
3.3 TEMP (AMP overheat) error detection
Key Operation
(Normal display)
D
FL Display
Time (sec.)
usually
Description of Indications
Normal display
(TEMP detection) (Auto) (RECEIVER POWER OFF) *1
*1 The time required for the unit to be shut off after an error is detected depends on the circuit configuration. (However, 3 seconds after DC is internally detected, the unit will shut itself off.) *2 If the unit is automatically shut off after a DC error is detected, no key input will be accepted afterward. (The power will not be turned ON.) To turn it on again, see "3.4 How to cancel the status after detection of a DC error" below. A key input will not be inhibited after an OVERLOAD/TEMP error is detected. (The unit can be turned ON.)
E
3.4 How to cancel the status after detection of the DC error
Key Operation
(STANDBY state) [ADVANCED SURROUND] + [STANDBY/ON] (press and hold the keys for 2 seconds.) (Normal display) usually Normal display
FL Display
Time (sec.)
Description of Indications
F
[Detailed explanations] Simultaneously holding the [ADVANCD SURROUND] and [STANDBY/ON] keys on the
front panel pressed for 2 seconds will cancel Key Input Inhibition mode after a DC error detection and turn the unit ON.
48
1 2
VSX-820-K
3 4
5
6
7
8
7. DISASSEMBLY
Note: (1) Even if the unit shown in the photos and illustrations in this manual may differ from your product, the procedures described here are common. (2) For performing the diagnosis shown below, the following jigs for service is required: · 10P extension jig cable (GGD1628) · 8P extension jig cable (GGD1629) · Board to board extension jig cable (GGD1673)
A
1. Discharging
[1] MAIN Assy Capacitor (C179, C180)
[Procedures] (1) Unplug the power cord. (2) Disconnect the 8P CONNECTOR that connects the CN202 of the AMP Assy and CP107 of the MAIN Assy from the CP107. (3) Connect CP107 B+ (pins 5 and 6) and B- (pins 7 and 8, respectively) terminals, using resistor leads with 47 - 100 ohms (2 W or higher), for discharging. Discharging time: 30 - 60 seconds, depending on the level of resistance. (4) Check that the voltage between the B+ and GND terminals, as well as that between the B- and GND terminals, is less than 1 V, using a tester. Be sure to connect the GND terminal of the tester to the chassis. If the voltage is still 1 V or higher, repeat Step (3).
B
C
C180 MAIN Assy
C179
B+ B
47 - 100 ohms (2 W or higher)
CP107
D
[2] FL-30 V Capacitor
[Procedures] (1) Unplug the power cord. (2) Connect CP704 -30 V (pins 1 and 2) of the FRONT Assy and GND (pins 3 and 4, respectively), using resistor leads with 47-100 ohms (2 W or higher), for discharging. Discharging time: 5 - 10 seconds, depending on the level of resistance. (3) Check that the voltage between the -30 V and GND terminals is less than 1 V, using a tester. Be sure to connect the GND terminal of the tester to the chassis. If the voltage is still 1 V or higher, repeat Step (2).
47 - 100 ohms (2 W or higher)
E
FRONT Assy
F
VSX-820-K
5 6 7 8
49
1
2
3
4
A
2. Notes on Ground Points Connection
[Note]
During repair, before checking the MAIN Assy, etc., with the rear chassis removed, be sure to connect the GND terminal of the main capacitor to the chassis back (TUNER PACK chassis), as shown below, then connect the power cord. Without grounding connection, the protection circuit will be activated. After repairing, be sure to remove the ground wire before reassembling.
B
TUNER PACK chassis Chassis back GND wire (Be sure to disconnect the GND wire before reassembly.)
C
Main capacitor GND
MAIN Assy (SIDE B)
D
E
F
50
1 2
VSX-820-K
3 4
5
6
7
8
3. Disassembly [1] Front Panel Section
Remove the cabinet by removing the 10 screws. (1) Remove the six screws. (BBZ30P080FTB)
A
1
1
1
1
· Bottom view
1
1
B
(2) Remove the four screws. (BBZ30P080FTC)
(VSX-820-K)
(VSX-520-K)
2
2
2 2 2
GUIDE_R Assy
2
C
GUIDE_L Assy
GUIDE_R Assy
(3) Remove the two screws. (BBZ30P080FTC) (4) Unhook the two hooks.
(VSX-820-K)
(VSX-520-K)
D
3 4
3 4
3 4
(5) Arrange the front panel section as shown in the photo below.
Front panel section
E
5
F
VSX-820-K
5 6 7 8
51
1
2
3
4
A
CABLE DRESSING (VSX-820-K ONLY)
(1) Secure the wires from the USB Assy. Wire (USB <-> DSP) (4) Style the 4P wire (F-VIDEO) so that it goes below the corresponding cables marked with circles in the figure below.
B
4P wire
GUIDE_R Assy
Wire (USB <-> MAIN)
C
(2) Secure the card cable with the clamps. Clamp
(5) Style the remaining two wires above wire A, which connects the AMP and INPUT Assys.
D
Card cable
Style the wires so that they are placed above wire A.
(3) Wrap the remaining wires with CU tape foil then secure them with a cable tie. Wires
E
Wire A CU tape foil
F
Cable tie
52
1 2
VSX-820-K
3 4
5
6
7
8
A
(6) Secure the cables bound with CU tape foil to the chassis, using a cable tie for grounding.
B
Chassis
CU tape foil
Cable tie
· The wires bound with CU tape foil (part No.: 1220-21087-900-0S) are shown below. Front side USB Assy F-VIDEO Assy MIC Assy Directly mounted wire Directly mounted wire Directly mounted wire Rear side DSP Assy
C
MAIN Assy INPUT Assy
When repairing an assy on the front side, as the wires are secured to the assys, it is necessary to peel off CU tape foil to unbind the wires in order to disconnect them. After repair, wrap the wires again, using new CU tape foil. When repairing an assy on the rear side, as the wires are disconnected/connected with connectors, you don't have to peel off CU tape foil. After disconnecting the wires, style them again, following the procedures shown above.
D
E
F
VSX-820-K
5 6 7 8
53
1
2
3
4
A
[2] Heatsink Section
Caution: Heatsink section in work becomes hot, and be careful with it. Remove the cabinet by removing the 10 screws. (1) Remove the seven screws. (BBZ30P080FTC) (VSX-820-K) (VSX-520-K)
B
1 1 1 1
1 1 1
1 1
C
· Bottom view
(2) Remove the four screws. (BBZ30P080FTC)
(VSX-820-K)
(VSX-520-K)
D
2
2
2 2 2
GUIDE_R Assy
2
GUIDE_L Assy
GUIDE_R Assy
(3) Disconnect the two connectors.
INPUT Assy
AMP Assy
Heatsink section
E
3
CP801
MAIN Assy
3
F
CP107
54
1 2
VSX-820-K
3 4
5
6
7
8
A
(4) Connect the two extension jig cables. (5) Rotate the heatsink section in the direction of the arrow.
4
10P extension jig cable (GGD1628)
4
8P extension jig cable (GGD1629)
5
B
CP801
CP107
Heatsink section + AMP Assy
C
Note: The power transistor on the AMP Assy and heatsink on the MAIN Assy come closer. Make sure that they will not come into contact.
AMP Assy Power transistor Heatsink
D
Heatsink section + AMP Assy
E
F
VSX-820-K
5 6 7 8
55
1
2
3
4
A
[3] MAIN Assy
Remove the cabinet by removing the 10 screws. (1) Remove the seven screws. (BBT30P100FTB) · Rear view (VSX-820-K)
1
1
B
1
1
1
· Rear view
1
1
(VSX-520-K)
1
1
1
C
1
1
1
1
(2) Remove the three screws. (BBZ30P080FTC) (3) Remove the six screws. (BBZ30P180FTC)
MAIN Assy
3 3
D
3 3 3
2
3
2
2
E
(4) Arrange the unit as shown in the photo below. (5) Connect the chassis ground. See "2. Notes on Ground Points Connection".
4
5
F
MAIN Assy
56
1 2
VSX-820-K
3 4
5
6
7
8
[4] DSP Assy (for VSX-820-K)
Remove the cabinet by removing the 10 screws. (1) (2) (3) (4) (5) Remove the five screws. (B020930083B10-IL) Remove the one screw. (BMZ30P100FTB) Remove the 24 screws. (BBT30P100FTB) Remove the seven screws. (BBT30P100FTB) Remove the chassis back. Chassis back
×24
A
1 ×5
3
4 4 4 2 4 5
· Rear view
4 4 4
B
(6) Remove the DSP Assy. (7) Remove the two connectors and remove the BT Assy.
DSP Assy
BT Assy
C
7 6
D
(8) Connect the board to board extension jig cable. (9) Reassembling the chassis back. Secure the HDMI, INPUT, and VIDEO Assys, using at least one screw each, and the chassis back and chassis, using at least two screws. (10) Remove the one connector and remove the CNT2 Assy.
Chassis back
9
10
CNT2 Assy
E
Notes: The soldered portions of the extension jigs may have become in poor connection, depending on usage environment, etc. Be sure to confirm soldered portions before use and enhance soldering, if necessary. During attaching/detaching the jig, be careful not to damage the connectors or injure yourself. During failure diagnosis using the extension jig, the cable connecting CP200 on the MAIN Assy and CN200 on the DSP Assy can be disconnected.
8
Board to board extension jig cable (GGD1673)
VSX-820-K
F
DSP Assy
57
5
6
7
8
1
2
3
4
A
[4] DSP Assy (for VSX-520-K)
Remove the cabinet by removing the 10 screws. (1) (2) (3) (4) Remove the four screws. (B020930083B10-IL) Remove the 22 screws. (BBT30P100FTB) Remove the seven screws. (BBT30P100FTB) Remove the chassis back. Chass