ORDER NO.

RRV2750
AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-D912-K

VSX-D912-S
VSX-D912-K VSX-D912-S FXJI FXJI
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).

Type Power Requirement

AC110V/120-127V/220V/240V AC110V/120-127V/220V/240V
The voltage can be converted by the following method.
With the voltage selector With the voltage selector
This service manual should be used together with the following manual(s):

Model No.

VSX-D912-S/MYXJIEW

Order No.

RRV2745

Remarks

For SPECIFICATIONS and PANEL FACILITIES, refer to the operating instructions.

CONTENTS

1. CONTRAST OF MISCELLANEOUS PARTS. 2 2. SCHEMATIC DIAGRAM.. 6 3. PCB CONNECTION DIAGRAM.. 8 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 2003

T ZZK MAY 2003 Printed in Japan
1. CONTRAST OF MISCELLANEOUS PARTS

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. Screws adjacent to mark on product are used for disassembly. Reference jNos. indicate the pages and Nos. in the service manual for the base model. p f y 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.) When ordering resistors, first convert resistance values into code form as shown in the following examples. Ex.1 When there are 2 effective digits (any digit apart from 0), such as 560 ohm and 47k ohm (tolerance is shown by J=5%, and K=10%). 561... RD1/4PU 1 J 560 473... RD1/4PU 3 J 47k 0.5 R50... RN2H R K 1 1R0... RS1P 1 R 0 K Ex.2 When there are 3 effective digits (such as in high precision metal film resistors). 5621.. RN1/4PC F 5.62k

CONTRAST TABLE

VSX-D912-K/FXJI, VSX-D912-S/FXJI and VSX-D912-S/MYXJIEW are constructed the same except for the following :
Part No. Ref. No. Mark Symbol and Description
PCB ASSEMBLIES MAIN ASSY NSP P9- 3 P9- 8 AMP&PS ASSY AMP&PRIMARY ASSY TRANS 1 ASSY VOLTAGE SELECT SW ASSY COMPLEX ASSY VIDEO ASSY BOARD TO BOARD ASSY COMPONENT ASSY FM/AM TUNER MODULE PACKING SECTION Warranty Card Operating Instructions (English/Italian) Operating Instructions (English/Chinese/Spanish) Remote Control Unit Packing Case Operating Instructions (Dutch/Spanish) Operating Instructions (French/German) Caution 220V Label AC Power Cord AC Power Cord J Shape Plug AC Plug Adapter EXTERIOR SECTION Power Transformer (AC220-230V) Power Transformer (AC110V/120-127V/220V/230V) Fuse (FU1 : T3.15A) Fuse (FU1 : T6.3A) AC Power Cord Cord Stopper Rear Panel Bonnet N Label
VSX-D912-S VSX-D912-K VSX-D912-S /MYXJIEW /FXJI /FXJI
XWK3101 XWK3086 XWZ3670 XWZ3681 Not used XWK3081 XWZ3647 XWZ3665 Not used AXQ7232 XWK3104 XWK3087 XWZ3671 Not used XWZ3689 XWK3080 XWZ3646 XWZ3664 XWZ3661 XXQ3003 XWK3104 XWK3087 XWZ3671 Not used XWZ3689 XWK3080 XWZ3646 XWZ3664 XWZ3661 XXQ3003

P9- 1 C

NSP P9- 9 P9- 11
P7- 2 P7- 5 P7- 5 P7- 6 P7-12 P7-16 P7-17
ARY7065 XRE3070 Not used XXD3054 XHD3334 XRC3081 XRC3082 Not used Not used Not used Not used Not used

Not used Not used XRE3071 XXD3053 XHD3345 Not used Not used ARR1003 ADG7062 XDG3014 AKX7008 AKX7011
Not used Not used XRE3071 XXD3053 XHD3346 Not used Not used ARR1003 ADG7062 ADG7076 AKX7008 Not used
Accessories Accessories Accessories Accessories
E P9-20 P9-20 P9-18 P9-18 P9-21 P9-22 P9-44 P9-45 P9-50 F
XTS3063 Not used REK1027 Not used VDG1080 CM-22B XNC3196 XZN3127 XAL3173
Not used XTS3049 Not used REK1030 Not used Not used XNC3200 XZN3126 XAL3174
Not used XTS3049 Not used REK1030 Not used Not used XNC3200 XZN3127 XAL3170

Ref. No. Mark

P9-56 P9-57 P9-61 P9-62 Screw Screw Fuse Card Screw AC Inlet Assy

Symbol and Description

Part No. VSX-D912-S VSX-D912-K VSX-D912-S /MYXJIEW /FXJI /FXJI
BPZ30P080FNI BPZ30P080FZK BPZ30P080FNI FBT40P080FNI FBT40P080FZK FBT40P080FNI AAX7493 XAX3218 XAX3218 BBT30P100FCC BBZ30P080FZK BBZ30P080FZK Not used ADX7395 ADX7395 No. 3 Not used Not used Not used XDD3104 REK1027 AKX-507 XDD3104 REK1027 AKX-507 No. 4 No. 5 No. 6 B
J38 5P F.F.C/30V Fuse (FU2, FU3 : T3.15A) Voltage Selector FRONT PANEL SECTION Pioneer Badge Select Knob Volume Knob FRT Panel BN Cover Cushion Panel Stay Door Door Cover
P11- 7 P11- 8 P11- 9 P11-11 P11-12 P11-14 P11-16 P11-21 P11-22
VAM1124 XAB3037 XAB3036 XNB3001 XAK3353 XED3002 XMB3108 XAK3357 XAK3359
AAN7218 XAB3023 XAB3025 XNB3002 XAK3354 XED3001 XMB3117 XAK3356 XAK3358
VAM1124 XAB3037 XAB3036 XNB3004 XAK3381 XED3002 XMB3108 XAK3357 XAK3359
Notes : The numbers in the remarks column correspond to the numbers on the EXPLODED VIEWS. For PCB ASSEMBLIES, Refer to CONTRAST OF PCB ASSEMBLIES, PCB PARTS LIST, 2. SCHEMATIC DIAGRAM and 3. PCB CONNECTION DIAGRAM.

EXPLODED VIEWS

EXTERIOR SECTION
6 Screw BBZ30P080FZK Screw BBZ30P080FZK Screw BBZ30P080FZK

Rear Panel

AMP&PRIMARY ASSY PRE-OUT ASSY 1

BOARD TO BOARD ASSY

CONTRAST OF PCB ASSEMBLIES

A F MAIN ASSY

XWK3104 and XWK3101 are constructed the same except for the following :
IC5001 Q5002 Q5003 Q5004 L5001 C5008 C5009 C5011 C5013, C5014 C5015 C5016 C5017 R5009, R5012, R5013 R5010 R5011 R5014 R5015 R9026 X5001

Part No. XWK3101

BU1924F 2SC3326 DTC143EK 2SA1037K LFEA2R2J CKSRYB472K50 CEAT1R0M50 CEAT2R2M50 CCSRCH270J50 CEAT101M10 CKSRYB102K50 CCSRCH561J50 RS1/16S102J RS1/16S104J RS1/16S333J RS1/16S473J RS1/16S222J RS1/16S332J ASS7004

XWK3104

Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used Not used RS1/16S751J Not used
CRISTAL RESONATOR (4.332MHz)
C F AMP & PRIMARY ASSY
XWZ3671 and XWZ3670 are constructed the same except for the following :
Mark Symbol and Description
Q701 Q702 R707, R708 H53H56 FUSE CLIP 53 TERMINAL 3P J11 J12 J13 T51 BOARD IN JUMPER WIRED BOARD IN JUMPER WIRED BOARD IN JUMPER WIRED STANDBY TRANSFORMER

Part No. XWZ3670

2SD1859X 2SB1238X RD1/4PU124J Not used Not used Not used Not used Not used ATT7040

XWZ3671

2SC4793D1 2SA1837D1 RD1/4PU104J AKR7001 AKC-081 DB215NB0 DB815NB0 DB015NB0 ATT7041

I F VIDEO ASSY

XWZ3646 and XWZ3647 are constructed the same except for the following :

R313, R316

Part No. XWZ3647

RS3LMF560J

XWZ3646

RS3LMF390J

K F BOARD TO BOARD ASSY
XWZ3664 and XWZ3665 are constructed the same except for the following :

CN392 F

5P CONNECTOR

Part No. XWZ3665

Not used

XWZ3664

52045-0545

W F FM/AM TUNER MODULE

XXQ3003 and AXQ7232 are constructed the same except for the following :

C216, C217 R218, R219

Part No. AXQ7232

CKSRYB103K50 RS1/16S681J

XXQ3003

CKSRYB123K50 RS1/16S102J

PCB PARTS LIST
Mark No. Description Part No.

U F COMPONENT ASSY

SEMICONDUCTORS
IC552 IC551 D551, D552 NJM2581M TC74HC4053AF 1SS355 C

CAPACITORS

C551C554 C555C562, C566, C568 CEAT101M10 CKSRYB103K50

RESISTORS

All Resistors RS1/16S###J

OTHERS

CN551 5P CONNECTOR JA553 3P RCA PINJACK JA551 6P RCA PINJACK 52045-0545 AKB7124 AKB7128 D
X F VOLTAGE SELECT SW ASSY

SWITCHES AND RELAYS

S51 VOLTAGE SELECTOR AKX1033

2. SCHEMATIC DIAGRAM

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST" A
2.1 AMP&PRIMARY and VOLTAGE SELECT SW ASSYS
C 2/2F AMP&PRIMARY ASSY (XWZ3671)

POWER TRANSFORMER

REK1027 (T3.15A)
VOLTAGE SELECT SW ASSY (XWZ3689)

REK1030 (T6.3A) LIVE

NEUTRAL AC INLET ASSY ADX7395

C 2/2F

AMP&PRIMARY ASSY (XWZ3671)
NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.

C 2/2F X F

2.2 BOARD TO BOARD and COMPONENT ASSYS
U F COMPONENT ASSY (XWZ3661)

K F CN392

BOARD TO BOARD ASSY (XWZ3664)

U F CN551

3. PCB CONNECTION DIAGRAM
3.1 COMPONENT and VOLTAGE SELECT SW ASSYS

X F VOLTAGE

SELECT SW ASSY

OUT OUT

COMPONENT VIDEO

HCI40HI

DA 4053 INH V-5.6V ADG V+5.6V

R577 D551

IC16 9

Cr1 Cr2

Cb2 R568

R571 Y out C568 Cb out

Cr out C565 C564

IC551 IC552

XWZ3661 XWZ3701

C559 C558 C560 R558 R552

UF X F
COMPONENT VIDEO PRODUCTION CODE

C J13 J11 J12

4053 A 4053 INH V-5.6V ADG V+5.6V

SIDE A

(XNP3066-B)

(XNP3064-C)

CN551 R570

W126 W132 C581 W160 W159

JA551 W135 W134

VOLTAGE SELECT SW

PRIMARY

XWZ3689

CMKS-P3X

W155 C551

W1 R559

R553 C562 R569 C566

C561 R554 R572 R567 R565 R564 R580

SIDE B

MULTI JOG DVD/LD TV/SAT VCR/DVR VIDEO ENTER CD-R/ TAPE/MD

AUX MASTER VOLUME

STANDBY

STANDBY/ON

PULL OPEN

PHONES

ORDER NO.

RRV2732

VSX-D912-K
AUDIO/VIDEO MULTI-CHANNEL RECEIVER

VSX-D812-K VSX-D812-S

VSX-D912-K VSX-D812-K VSX-D812-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
KUXJICA KUXJICA KUXJICA AC120V AC120V AC120V

Power Requirement

Remarks
For details, refer to "Important symbols for good services".
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 2003

T-ZZK FEB. 2003 printed in Japan

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.
WARNING 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
NOTICE (FOR CANADIAN MODEL ONLY) Fuse symbols (fast operating fuse) and/or (slow operating fuse) on PCB indicate that replacement parts must be of identical designation. REMARQUE (POUR MODLE CANADIEN SEULEMENT)

Les symboles de fusible

(fusible de type rapide) et/ou
(fusible de type lent) sur CCI indiquent que
les pices de remplacement doivent avoir la mme dsignation.
(FOR USA MODEL ONLY) 1. SAFETY PRECAUTIONS
The following check should be perfor med for the continued protection of the customer and ser vice technician.

LEAKAGE CURRENT CHECK

Measure leakage current to a known ear th ground (water pipe, conduit, etc.) by connecting a leakage current tester such as Simpson Model 229-2 or equivalent between the ear th ground and all exposed metal par ts 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.
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. 2. PRODUCT SAFETY NOTICE
Many electrical and mechanical parts in the appliance have special safety related character istics. 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 par ts which have these special safety character istics are identified in this Service Manual. Electr ical 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 infor mation, always consult the current PIONEER Service Manual. A subscription to, or additional copies of, PIONEER Ser vice Manual may be obtained at a nominal charge from PIONEER.

Device under test Test all exposed metal surfaces

Leakage current tester

Reading should not be above 0.5 mA
Also test with plug reversed (Using AC adapter plug as required)

Earth ground

AC Leakage Test
[ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

1. Product safety

You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments

To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning

For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.
4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.
5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.

CONTENTS

SAFETY INFORMATION..... 2 1. SPECIFICATIONS..... 5 2. EXPLODED VIEWS AND PARTS LIST... 7 2.1 PACKING..... 7 2.2 EXTERIOR SECTION..... 8 2.3 FRONT PANEL SECTION.... 10 3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM... 12 3.1 BLOCK DIAGRAM..... 12 3.2 OVERALL WIRING CONNECTION DIAGRAM... 14 3.3 MAIN ASSY (1/3)..... 16 3.4 MAIN ASSY (2/3)..... 18 3.5 MAIN ASSY (3/3)..... 20 3.6 DSP ASSY (1/2)..... 22 3.7 DSP ASSY (2/2)..... 24 3.8 AMP & PRIMARY (1/2), TRANS2 and TRANS3 ASSYS... 26 3.9 AMP & PRIMARY (2/2), REG. , AMP INPUT and TRANS1 ASSYS... 28 3.10 VIDEO, 6CH IN, BOARD TO BOARD and S. VIDEO ASSYS... 30 3.11 FRONT, R. ENCODER and POWER SW ASSYS... 32 3.12 TRANS4, F.VIDEO, H.P., PRE., D.IN, COMP. and F.OPT&MIC ASSYS.. 34 3.13 FM/AM TUNER MODULE..... 36 4. PCB CONNECTION DIAGRAM.... 38 4.1 REGULATOR ASSY.... 38 4.2 TRANS2, TRANS3, TRANS1 and TRANS4 ASSYS... 39 4.3 MAIN ASSY..... 40 4.4 DSP ASSY..... 44 4.5 AMP & PRIMARY and AMP INPUT ASSYS.... 46 4.6 FRONT, R. ENCODER, POWER SW and H. P. ASSYS... 48 4.7 BOARD TO BOARD, DIGITAL IN, VIDEO and 6CH IN ASSYS... 52 4.8 S.VIDEO, F.VIDEO, F.OPT&MIC, COMP. and PRE-OUT ASSYS.. 54 4.9 FM/AM TUNER MODULE.... 56 5. PCB PARTS LIST.... 57 6. ADJUSTMENT..... 64 6.1 TUNER SECTION.... 64 7. GENERAL INFORMATION..... 65 7.1 DIAGNOSIS..... 65 7.1.1 DISASSEMBLY AND DIAGNOSIS.... 65 7.1.2 PCB LOCATION.... 66 7.2 PARTS..... 67 7.2.1 IC...... 67 7.2.2 DISPLAY..... 81 7.3 EXPLANATION..... 83 7.3.1 POWER ON AND OFF INITIAL TIMING CHART.... 83 7.3.2 IC DATA TRANSMISSION TIMING CHART... 85 7.3.3 DETECTION CIRCUIT.... 86 7.3.4 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION.. 87 7.4 CLEANING..... 87 8. PANEL FACILITIES..... 88

1. SPECIFICATIONS

Amplifier section
Continuous average power output of 110 watts* per channel, min., at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0.2 %** total harmonic distortion (front).
Signal-to Noise Ratio [EIA, at 1 W (1 kHz)]
CD, VCR/DVR, CD-R/TAPE/MD, DVD/LD, TV/SAT.79 dB
Continuous power output (stereo)
Front. 110 W per channel (2020,000 Hz, THD 0.2 %, 8)

Video Section

Input (Sensitivity/Impedance)
VCR/DVR, DVD/LD, TV/SAT.1 Vp-p/75
Continuous power output (surround)
Front. 110 W per channel (1kHz, 1.0 %, 8) Center. 110 W (1kHz, 1.0 %, 8 ) Surround. 110 W per channel (1kHz, 1.0 %, 8) Surround Back. 110 W per channel (1kHz, 1.0 %, 8)

Output (Level/Impedance)

VCR/DVR, MONITOR OUT.1 Vp-p/75

Frequency response

VCR/DVR, DVD/LD, TV/SAT ] MONITOR.5 Hz to 7 MHz dB Signal-to-Noise Ratio.55 dB
CD, VCR/DVR, CD-R/TAPE/MD, DVD/LD, TV/SAT. 200 mV/47 k

Component video section

Input (Sensitivity)

DVD/LD, TV/SAT.1 Vp-p/75

CD, VCR/DVR, CD-R/TAPE/MD, DVD/LD, TV/SAT. 5 Hz to 100,000 Hz dB

MONITOR OUT.1 Vp-p/75

VCR/DVR REC, CD-R/TAPE/ MD REC.200 mV/2.2 k
DVD/LD, TV/SAT ] MONITOR.5 Hz to 40 MHz dB Signal-to-Noise Ratio.55 dB

Tone control

Bass. 6 dB (100 Hz) Treble. 6 dB (10 kHz) Loudness. +10 dB/+5 dB (100 Hz/10 kHz) (at volume level -60 dB). +6.5 dB/+3 dB (100 Hz/10 kHz) (at volume level -50 dB)

FM Tuner Section

Frequency Range.87.5 MHz to 108 MHz Usable Sensitivity. Mono:13.2 dBf, IHF (1.3 V/ 75) 50 dB Quieting Sensitivity. Mono: 20.2 dB.Stereo: 38.6 dBf Signal-to-Noise Ratio.Mono: 73 dB (at 85 dBf) Stereo: 70 dB (at 85 dBf) Distortion. Stereo: 0.5 % (1 kHz) Alternate Channel Selectivity.60 dB (400 kHz)
Signal-to-Noise Ratio (IHF, short circuited, A network)
CD, VCR/DVR, CD-R/TAPE/MD, DVD/LD, TV/SAT. 96 dB
Stereo Separation. 40 dB (1 kHz) Frequency Response.30 Hz to 15 kHz (1 dB) Antenna Input (DIN). 75 unbalanced

Cleaning the unit

Use a polishing cloth or dry cloth to wipe off dust and dirt. When the surface is dirty, wipe with a soft cloth dipped in some neutral cleanser diluted five or six times with water, and wrung out well, and then wipe again with a dry cloth. Do not use furniture wax or cleansers. Never use thinners, benzine, insecticide sprays or other chemicals on or near this unit, since these will corrode the surface.

See Contrast table(2) See Contrast table(2) See Contrast table(2)
(2) CONTRAST TABLE VSX-D812-K/KUXJICA, VSX-D812-S/KUXJICA and VSX-D912-K/KUXJICA are constructed the same except for the following:
Mark NSP NSP NO Symbol and Description Dry Cell Battery (LR6, AA) Alkaline Dry Cell Battery (LR6, AA) Operating Instructions (English) Remote Control Unit Battery Cover Packing Case MIC Stand 45 Microphone Assy VSX-D812-K/ KUXJICA VEM1031 Not used XRB3020 XXD3051 AZA7424 XHD3326 Not used Not used VSX-D812-S/ KUXJICA VEM1031 Not used XRB3020 XXD3051 AZA7424 XHD3352 Not used Not used VSX-D912-K/ KUXJICA Not used VEM1023 XRB3021 XDXD3056 Not used XHD3327 AEB7269 APM7004

2.2 EXTERIOR SECTION

55 EXCEPT VSX-D812-K 44 55

E D F O P S C

25 L 55 K 11 12

Q P O S R

28 I A

D 32 F 55 55

T 55 B

55 F 39 55

C B B A

42(2/2) 55

Refer to "2.3 FRONT PANEL SECTION". 60 55
NON-CONTACT SIDE CONTACT SIDE

42(1/2)

EXTERIOR SECTION parts List
Mark No. 31 Description MAIN Assy DSP Assy AMP Assy TRANS2 Assy TRANS3 Assy REGULATOR Assy AMP INPUT Assy TRANS1 Assy VIDEO Assy 6CH IN Assy BOARD TO BOARD Assy S. VIDEO Assy TRANS4 Assy PRE-OUT Assy DIGITAL IN Assy COMPONENT Assy FM/AM TUNER MODULE FU1 Fuse (10A) FU701 Fuse (10A) T1 Power Transformer AC Power Cord Cord Stopper J36 23P F.F.C/30V J46 7P F.F.C/30V J38 5P F.F.C/30V J22 J33 J48 J34 J43 3P F.F.C/30V 11P F.F.C/30V 9P F.F.C/30V 13P F.F.C/30V 19P F.F.C/30V Part No. See Contrast table(2) AWX1082 See Contrast table(2) XWZ3684 XWZ3687 XWZ3676 XWZ3679 XWZ3681 XWZ3646 XWZ3650 XWZ3664 XWZ3660 XWZ3662 XWZ3663 See Contrast table(2) XWZ3661 AXQ7231 REK1087 REK1087 XTS3059 ADG7024 CM-22C XDD3102 XDD3105 XDD3104 XDD3107 XDD3123 XDD3124 XDD3122 XDD3126 XDD3118 Mark No. NSP 38 NSP > 45 Description J35 19P F.F.C/30V J37 10P F.F.C/30V Heatsink R6A CORR H/S Angle Rear H/S Angle Front PCB Angle R5 PCB Mold Under Base R6 Insulator DC Fan Motor Fan Holder R6 REG Support R6 Rear Panel 812K Bonnet HOLDER Assy FFC Holder R6 Shield A R6 FFC Cover R6 N Label Spacer Screw Screw 3x23 Screw Screw Screw Screw Vjack Spacer R6 BINDER Assy Screw Part No. XDD3101 XDD3127 XNH3026 XNG3095 XNG3094 XNG3073 AMR2533 XNA3012 PNW2766 XXM3006 XMR3066 XNG3093 XNC3185 See Contrast table(2) XWZ3693 XMR3072 XNG3068 XMR3060 See Contrast table(2) AEB7092 BBZ30P200FMC ABA7043 FBT40P080FZK BBZ30P080FZK See Contrast table(2) See Contrast table(2) XEC3038 XWZ3691

> > > >

NSP NSP 50 NSP NSP 59 60

BPZ30P120FMC

J31 17P F.F.C/30V
Mark NO 45 NSP NSP Symbol and Description MAIN Assy AMP & PRIMARY Assy DIGITAL IN Assy Bonnet D912K Bonnet D912S N Label 912K/KU N Label 812S/KU Screw Screw VSX-D812-K/ KUXJICA XWK3095 XWZ3669 XWZ3658 XZN3126 Not used Not used Not used BPZ30P080FZK FBT40P080FZK VSX-D812-S/ KUXJICA XWK3095 XWZ3669 XWZ3658 Not used XZN3127 Not used XAL3177 BPZ30P080FNI FBT40P080FNI VSX-D912-K/ KUXJICA XWK3100 XWZ3673 XWZ3659 XZN3126 Not used XAL3172 Not used BPZ30P080FZK FBT40P080FZK

2.3 FRONT PANEL SECTION

Lubricating Oil GYA5 R O M 17 16

VSX-D912-K ONLY 27

V 6 31
VSX-D812-K, VSX-D812-S ONLY 13 14
FRONT PANEL SECTION parts List
Mark No. 9 NSP 18 Description FRONT ASSY R. ENCODER Assy POWER SW Assy FRONT VIDEO Assy H.P. Assy FRONT OPTICAL & MIC Assy Pioneer Badge B Select Knob Volume Knob C Ring DIM 8.1 FRT Panel BN Cover D Panel R6 W Cushion LED Lens Panel Stay Earth Plate R5 HP Door Spring R6 Part No. XWZ3648 XWZ3653 XWZ3651 XWZ3655 XWZ3654 See Contrast table(2) See Contrast table(2) See Contrast table(2) See Contrast table(2) XBH3016 See Contrast table(2) See Contrast table(2) XAK3348 See Contrast table(2) PNW2019 See Contrast table(2) XNG3066 XBK3002 Mark No. NSP 35 Description J29 8P Shield Cable B Lens R6 Door Door Cover Holder L R6 Damper Assy Push Rivet Earth Plate FI R6 J30 5P Shield Cable J32 5P F.F.C/30V Earth Plate D R6 Screw Screw Screw Energy Star Label Part No. XDX3012 XAK3352 See Contrast table(2) See Contrast table(2) XMR3059 XXA3025 See Contrast table(2) XNG3091 See Contrast table(2) See Contrast table(2) See Contrast table(2) XBA3010 BBZ30P080FZK

PPZ30P100FMC AAX7876

Mark NO 29 Symbol and Description FRONT OPTICAL & MIC Assy Pioneer Badge B Select Knob R5BH SEL Plat Knob R6S Volume Knob R5BH VOL Plat Knob R6S FRT Panel 812K/KU FRT Panel 812S/KU FRT Panel 912K/KU BN Cover 712K/KU BN Cover 812S/JP BN Cover 912K/KU Cushion R4B Cushion R4G Panel Stay 812K/KU Panel Stay 812S/KU Panel Stay 912K/KU Door R6K Door R6S Door Cover R6K Door Cover R6S Push Rivet 5P Shield Cable J32 5P F.F.C/30V Earth Plate D R6 VSX-D812-K/ KUXJICA Not used XAM3006 XAB3023 Not used XAB3025 Not used XMB3095 Not used Not used XAK3355 Not used Not used XED3001 Not used XMB3109 Not used Not used XAK3356 Not used XAK3358 Not used AEC7025 Not used Not used Not used VSX-D812-S/ KUXJICA Not used VAM1129 Not used XAB3037 Not used XAB3036 Not used XMB3126 Not used Not used XAK3379 Not used Not used XED3002 Not used XMB3124 Not used Not used XAK3357 Not used XAK3359 AEC7025 Not used Not used Not used VSX-D912-K/ KUXJICA XWZ3656 AAN7218 XAB3023 Not used XAB3025 Not used Not used Not used XNB3002 Not used Not used XAK3354 XED3001 Not used Not used
Not used XMB3094 XAK3356 Not used XAK3358 Not used Not used XDX3019 XDD3125 XNG3092
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM

3.1 BLOCK DIAGRAM

Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".

CNVSX-D912 Only

CN201 7
CN4 CN17 CN1 IC101 BD3841FS (FUNCTION SEL)

IC102 NJM2100M 44

3 CN901

1 CN14 26

CN8007 IC8401 (CODEC) AK4529VQ 23 (ADC) (DAC) 31
uPC4570G2 (LPF) IC105 ICIC1

(DIR) IC8201 AK4114VQ

IC8501 MOTOROLA DSP (for DECODE)

3 IC52

1 CN8017

CN951 1

1 CN1902

1 CN1901

IC8601 IS61LV6416 -12T(S-RAM) IC8602 IS63LV1024 -12T(S-RAM) IC8603 PD8116A (ROM)

ICCNCN109

IC303 1

CN307 3

Y 13 12
IC551 TC74HC4053 (COMPOSEL) 14

NJM2595M

(Y SEL)

COMPONENT1 Cb

CN901 CN354
3 IC351 NJM2595M (C SEL) 11 1

COMPONENT2 Cb

ICNJM2581M

COMPONENT OUT Cb

1551 6

14.1/24.1 14.2/27.3

CN702 IC110 uPC4570G2 (PRE AMP) CN106

CN601 3

Q603 IC108 BD3813FS

Q601 IC24 IC602 26

QICQ651 IC601 26

IC602 RY18

ICIC109 DB3812F 1

5 IC112

18 CN111

3 CN302

Q5 CN3 IC301

POWER AMP IC601, IC602

+BVH -BVH NECK+B NECK-B +BVL D702 -BVL FL AC RY51 AC IN T1 POWER TRANSFORMER

Q701 Q702 D701

CN101 U+5V IC51 D51-D54 T51
(COMPONENT SEL) NJM2595M CN301 11
FL AC +12V IC801 IC802 IC803 IC804 D801D804 D721D724
CN101 -12V D+5V CN101 A+5V
3.2 OVERALL WIRING CONNECTION DIAGRAM
FRONT OPTICAL & MIC ASSY (XWZ3656)
R.ENCODER ASSY (XWZ3653) FRONT VIDEO ASSY (XWZ3655)

FRONT ASSY (XWZ3648)

AMP INPUT ASSY (XWZ3679)

DSP ASSY (AWX1082)

B B 1/2, B 2/2
MAIN ASSY (VSX-D912 : XWK3100) (VSX-D812 : XWK3095)

S. VIDEO ASSY (XWZ3660)

VIDEO ASSY (XWZ3646)
BOARD TO BOARD ASSY (XWZ3664)

A A 1/3, A 2/3, A 3/3

DIGITAL IN ASSY (VSX-D912 : XWZ3659) (VSX-D812 : XWZ3658)

REGULATOR ASSY (XWZ3676)

FM/AM TUNER MODULE 6CH IN ASSY (AXQ7231) (XWZ3650)

H.P. ASSY (XWZ3654)

POWER SW ASSY (XWZ3651)
TRANS3 TRANS4 ASSY ASSY (XWZ3662) (XWZ3687)

TRANS2 ASSY (XWZ3684)

TRANS1 ASSY (XWZ3681)
AMP& PRIMARY ASSY (VSX-D912 : XWZ3673) (VSX-D812 : XWZ3669)

C C 1/2, C 2/2

COMPONENT ASSY (XWZ3661)

PRE-OUT ASSY (XWZ3663)

ADG7024

3.3 MAIN ASSY (1/3)

VSX-D812, only

Q CN901

VSX-D912 only

A 1/3 A

A 2/3 A 2/3 A 2/3

A 2/3 A 3/3

A 1/3 MAIN ASSY
(VSX-D912 : XWK3100) (VSX-D812 : XWK3095)
: The power supply is shown with the marked box.

3.4 MAIN ASSY (2/3)

A 2/3 MAIN ASSY

A 2/3 A

G CN254 A 3/3

3.5 MAIN ASSY (3/3)

W CN201

A 1/3 A 2/3

VSX-D812/KU VSX-D912/KU

A 3/3 A

M CN401

A 3/3 MAIN ASSY

A 2/3 B 2/2 CN8012

3.6 DSP ASSY (1/2)

CN1901

NO USE

B 1/2 A

NO USE VSX-D912-K

AWX1082 : NO USE

B C D E

B 1/2 DSP ASSY

(AWX1082)

3.7 DSP ASSY (2/2)

B 2/2 A

A 3/3 CN112

B 2/2 DSP ASSY

3.8 AMP & PRIMARY (1/2), TRANS2 and TRANS3 ASSYS
C 1/2 AMP&PRIMARY ASSY (VSX-D912: XWZ3673) (VSX-D812: XWZ3669)

G CN253

KUXJICA NO USED NO USED

NO USED

KUXJICA
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. ICP-N10 FOR IC701 AND IC702 MFD, BY ROHM CO., LTD.
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491003 FOR IC853 MFD, BY LITTELFUSE INC.

TRANS3 ASSY (XWZ3687)

POWER TRANSFORMER

REK1087 (10A)

VSX-D912 VSX-D812

KUXJICA KUXJICA

CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491004 FOR IC851 AND IC852 MFD, BY LITTELFUSE INC. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491001 FOR IC603 MFD, BY LITTELFUSE INC. CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491010 FOR IC604, IC605, IC606, AND IC607 MFD, BY LITTELFUSE INC.

S C 2/2

CN1575
NOTE FOR FUSE REPLACEMENT CAUTION - FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE WITH SAME TYPE AND RATINGS ONLY.

C 1/2 D E

3.9 AMP & PRIMARY (2/2), REG. , AMP INPUT and TRANS1 ASSYS

CN8007

CN8003

A 1/3 CN109

C 2/2 F

FAN MOTOR

A 2/3 CN106

C 1/2 CN601

REK1087 (10A) LIVE
NEUTRAL AC POWER CORD ADG7024
AMP&PRIMARY ASSY (VSX-D912: XWZ3673) (VSX-D812: XWZ3669)

C 2/2 G H

3.10 VIDEO, 6CH IN, BOARD TO BOARD and S. VIDEO ASSYS

6CH IN ASSY (XWZ3650)

A 3/3 CN104

VSX-D912, VSX-D812

KUCXJICA
3.11 FRONT, R. ENCODER and POWER SW ASSYS
R.ENCODER ASSY S511 : ENTER S512 : MULTI JOG DIAL S513 : MASTER VOLUME

R.ENCODER ASSY (XWZ3653)

POWER SW ASSY S501 : VIDEO S502 : VCR/DVR S503 : TV/SAT S504 : DVD/LD S505 : POWER STANDBY/ON S506 : CD S507 : CDR/TAPE S508 : TUNER S509 : AUX
FRONT ASSY S451 : STEREO/DIRECT S452 : SIGNAL SELECT S453 : MIDNIGHT/LOUDNESS S454 : SPEAKER S455 : SBch MODE S456 : TONE S457 : QUICK SETUP S458 : ADVANCED SURROUND S459 : STANDARD S460 : TUNING + S461 : TUNING S462 : STATION + S463 : STATION S464 : TUNER EDIT S465 : CLASS S466 : FL DIMMER S467 : INPUT ATT S468 : MPX S476 : BAND
3.12 TRANS4, F.VIDEO, H.P., PRE., D.IN, COMP. and F.OPT&MIC ASSYS

A 1/3 CN107

FRONT VIDEO ASSY (XWZ3655)
CAUTION : FOR CONTINUED PROTECTION AGAINST RISK OF FIRE. REPLACE ONLY WITH SAME TYPE NO. 491.630 FOR IC891 AND IC892 MFD, BY LITTELFUSE INC.

G CN251

TRANS4 ASSY (XWZ3662)

CN8017 CN951

C 1/2 CN604

P Q R S T

A 1/3 CN108
FRONT OPTICAL & MICASSY (XWZ3656) VSX-D912 Only

CN1902

3.13 FM/AM TUNER MODULE
W FM/AM TUNER MODULE (AXQ7231)

FM FRONT END

(FM) (FM) (FM) (FM)

(FM) (AM) (AM) (AM)

(FM) (AM)

(AM) (AM)

MW RF TUNING BLOCK
OSC : 981 - 2052kHz 9k step

(TX) (AM) (FM)

: AUDIO SIGNAL ROUTE (TUNER) : AM SIGNAL ROUTE : FM SIGNAL ROUTE

ATF7026

(TX) (TX)

AM/FM IF+MPX IC

(TX) (TX) (FM) (TX) L201

A 3/3 CN103

ATE7003

PLL IC

4. PCB CONNECTION DIAGRAM

NOTE FOR PCB DIAGRAMS :

1. Part numbers in PCB diagrams match those in the schematic diagrams. 2. A comparison between the main parts of PCB and schematic diagrams is shown below.
Symbol In PCB Diagrams Symbol In Schematic Diagrams B C E B C E Part Name
3. The parts mounted on this PCB include all necessary parts for several destinations. For further information for respective destinations, be sure to check with the schematic diagram. 4. View point of PCB diagrams.

52 STEREO/ DIRECT ADVANCED SURROUND STANDARD R460 R461 R469 TUNING +
Q1551 R1557 L R C1551 R1556 C1552

C1557 C1558 C1556

HP GND

Q1552 C1555 C1554 C1553

POWER R505

R425 R472 C454

R459 R423 C452
R467 R462 TUNING R463 STATION + R464 STATION R471 R466 R465 R468 R470 INPUT ATT MPX BAND CLASS TUNER EDIT
POWER SW & FUNCTION ASSY XWZ3651
5 GNDU 4 STBY LED 3 FUNCA 2 GNDU 1 FUNCAV R502 VIDEO VCR/DVR R503

TV/SAT

R507 R508 R506

CDR/TAPE

4.7 BOARD TO BOARD, DIGITAL IN, VIDEO and 6CH IN ASSYS

T DIGITAL IN ASSY

10 OPTD+5V 8 GNDD 7 FRONT OPT 6 GNDD 5 GNDD 4 OPT3 (NC) 3 GNDD 2 GNDD 1 OPOUT

J 6CH IN ASSY

B CN8017
WSHIELD 4 D+5V 3 GNDD 2 SHIELD 1 FRONT OPT

XWZ3649 XWZ3650

6 CH. IN

V CN951

23 W176 JA351 W167 WJA305 C309 CN306 -12V ADG +12V uG SW.OUT AG SB OUT W191 W190 CN304 W3

A CN105

I VIDEO ASSY
4053INH 4053A FURNITURE RMC SRIN SROUT SWDET AMUTE V3 V2 V1 CN303

W139 W169 C338

C310 W203 W210 W204 CN302

F CN803

R 31 3

CN301 CN390

BOARD TO BOARD HCI40HI

K BOARD TO BOARD ASSY

XWZ3664
CN7 FRONTV VIDEO3 VIDEO2 VIDEO1 V-5.6V ADG V+5.6V

L CN351 U CN551

I J K T
SR AG SL 12V SW -12V SB AG C

9 CN307

JA1901 W234

JA1902 W235

DIGITAL IN XWZ3659 XWZ3658 XWZ3657

CN1901 C1904

KN1901

W140 W141 W173 W171 W172

V+5.6V W757 ADG

+5V W192 ADG -5V

XWZ3644 XWZ3645 XWZ3646 XWZ3647

4053INH

4053A V-5.6V

V+5.6V

FRONT V V1

V1 FRONT V

V-5.6V 4053A

ADG 4053INH

4053A 4053INH V-5.6V ADG V+5.6V

XWZ3665

C319 C318 IC302 C8 CRCR1351 C1352 IC304

C317 R331 R334 R332

Set the mode selector to FM BAND. Connect the wiring as shown in Fig. 1.

Step No.

Adjustment Title

T-METER Adjustment

ANT. Input level and signal condition Input Level Frequency Modulation (dBV) (MHz)

98 OFF 80

Adjustment Adjust point

Contents

Adjust L201 so that the DC voltage between Pin 21 and Pin 23 of IC201 (Test point Vtm) gets within 0 50mV.

MPX SG

FM SG FM75 antenna terminal

PRODUCT

DC Voltmeter
Fig.1 Adjustment Wiring Diagram

IC201 pin 21 pin 23

Fig.2 Adjustment Point

7. GENERAL INFORMATION

7.1 DIAGNOSIS
7.1.1 DISASSEMBLY AND DIAGNOSIS Diagnosis 1
Remove the top cover (nine screws). Note : This photograph shows other models. However, the work method is the same.

Pull up

Rear Panel

REGULATOR Assy

Diagnosis

AMP&PRIMARY Assy

Heat Sink
Note : The unit does not operate when the screws of Speaker Terminal are taken off from Rear Panel.

7.1.2 PCB LOCATION

BOARD TO BOARD Assy

S.VIDEO Assy

VIDEO Assy

DIGITAL IN Assy

PRE-OUT Assy

COMPONENT Assy

F W FM/AM TUNER

Module

DSP Assy

6CH IN Assy

TRANS 2 Assy

MAIN Assy

AMP INPUT Assy

FRONT VIDEO Assy

TRANS 1 Assy
TRANS 3 Assy TRANS 4 Assy

R. ENCODER Assy

M FRONT Assy V R
FRONT OPTICAL & MIC Assy (VSX-D912-K Only)

H.P. Assy

POWER SW Assy
NOTE : This photograph is VSX-D812.

7.2 PARTS

7.2.1 IC
The information shown in the list is basic information and may not correspond exactly to that shown in the schematic diagrams.

List of IC

PD5837A, PE5346A, BD3813KS, BD3841FS, NJM2581, NJM2595, AK4529
7 PD5837A (MAIN ASSY : IC9001)

System Control MCU

7 Pin Arrangement (Top View)
TUNER DO TUNER CLK TUNER DI TUNER CE NC NC NC NC NC NC NC NC NC SIMUKE1 SIMUKE2 AVSS NC VREF AVCC NC P07/D7 P06/D6 P05/D5 P04/D4 P03/D3 P02/D2 P01/D1 P00/D0 P107/AN7/KI3 P106/AN6/KI2 P105/AN5/KI1 P104/AN4/KI0 P103/AN3 P102/AN2 P101/AN1 AVSS P100/AN0 VREF AVcc P97/ADTRG/SIN4
NC DISP RST DISP EN DISP RDY DISP DI DISP DO DISP CLK GND CNVSS NC NC XRESET XOUT GND XIN 5V NMI ACIN(WAKEUP) 1394 INT 1W WUP DECO MUTE NECK_SEL DC PROT Boad DET MIC DET 1394 RST 1394 CS 1394 CK 1394 DO 1394 DI
P96/ANEX1/SOUT4 P95/ANEX0/CLK4 P94/DA1/TB4IN P93/DA0/TB3IN P92/TB2IN/SOUT3 P91/TB1IN/SIN3 P90/TB0IN/CLK3 BYTE CNVss

E A D C F B
POWER OFF INITIAL TIMING CHART
AC relay (port) A.MUTE (port) FUNCTION SW

"H"

"L"

full open

(BD3841) VIDEO system (NJM2595) TUNER (LC72131) E-VOLUME (BD3813) DSP (DSPD56367) DIR/CODEC (AK4114/AK4628) SPEKER relay (port) OVERLOAD DETECT on off mute mute mute

AMP ERROR DETECT

7.3.2 IC DATA TRANSMISSION TIMING CHART
IC data transmission timing chart
1.When function chage 0 120ms pass 180ms pass 240ms pass 300ms pass 440ms pass 500ms pass
A.MUTE (port) E-volume (BD3813) function SW (BD3841) video select (NJM2595)

"L"(mute)

Mute data

Last data

Now data Full open New data

Now data

Full open

New data

DSP or direct change (BD3813) Now data speaker relay (port) Now data
condition of mute cancel (system mute & E-volume mute) 1) when tuner mute during Tuner function 2) when communicate to DSP 3) when initial processing 4) when detect trouble of AMP DC 5) when detect overload of AMP 6) when Power off 7) when muting by key input
2.When except function chage 0 120ms pass 180ms pass 240ms pass 300ms pass 440ms pass 500ms pass

A.MUTE (port)

E-volume (BD3812,13) Mute data DSP or direct change (BD3813) Now data speaker relay (port) Now data

New or last data

7.3.3 DETECTION CIRCUIT
1.DC Detection Circuit Diagram:
+5V AMP u-con IC9001 DC PROT IC601, IC602 DC DET. Q696 L : ON H : OFF Pin 23
2. Overload Detection Circuit Diagram:
+5V u-con IC9001 OL DET L : ON H : OFF Pin 73
Q605, Q606, Q633, Q683 Q655, Q656 O.L. DET IC601, IC602
3. Fan Stop Prottection Circuit Diagram:

+5V u-con IC9001

DC DET. Fan Stop DET. Fan Stop Fan Fan Fan + R265
DC PROT L : ON H : OFF Q253

Pin 23

-12V +12V
4. PCB Board Protection Circuit Diagram

Main Assy

Amp Input Assy R
Amp & Primary Assy Speaker

Micro-p

7.3.4 AMPLIFIER SYSTEM PROTECTION OPERATION SPECIFICATION
1. DC-abnormality detection In the case of simultaneous detection with the overload protection circuit, DC-abnormality detection is performed preferentially to overload detection. When a DC abnormality is detected, A.MUTE* is turned on, speaker relay is turned off, then "AMP_ERR" flashes on the display. The abnormality continues for 3 seconds. Continues. The power is shut off. The power key is disabled and Standby LED blinks. But be switched on with the following methods. 1 TESTMODE ON (A55F+A55F) 2 When power off, push FRONT ENTER key + ADVANCED SURROUND key continuously 2sec. (2: When a DC abnormality is detected and the power is shut off.) 2. Overload detection When an overload is detected, A.MUTE* is turned on, speaker relay is turned off, then "OVERLOAD" flashes on the display. The abnormality continues for 3 seconds. Continues. The power is shut off. Recovery The power is shut off even if the unit recovers.

7 DIRECT Lights when source direct playback is in use. Direct playback bypasses the tone controls and channel levels for the most accurate reproduction of a source. 8 MIDNIGHT Lights during Midnight listening. 9 SLEEP Lights when the receiver is in sleep mode. 10 Speaker indicator Shows the speaker system currently in use. 11 Character display 12 Neo:6 When the (STANDARD) NEO:6 mode of the receiver is on, this lights to indicate NEO:6 processing. 13 ADV.SURR. (Advanced Surround) Lights when one of the Advanced Surround modes has been selected. 14 LOUDNESS Lights when LOUDNESShas been selected. 15 TUNER indicators STEREO Lights when a stereo FM broadcast is being received in auto stereo mode. MONO Lights when the mono mode is set using the MPX button. TUNED Lights when a broadcast is being received. 16 Master volume level Shows the overall volume level.---dB indicates the minimum level, and - 0 dB indicates the maximum level. Depending on your level settings for each channel, the maximum volume can range between 10 dB and 0 dB.
DTS Lights when a source with DTS encoded audio signals is detected. 2 DTS When the STANDARD mode of the receiver is on, this lights to indicate decoding of a DTS signal. DIGITAL When the STANDARD mode of the receiver is on, this lights to indicate decoding of a Dolby Digital signal.
PRO LOGIC II When the (STANDARD) Pro Logic II mode of the receiver is on, this lights to indicate Pro Logic II decoding. 5 VIR.SB Lights during Virtual surround back processing. 6 ATT Lights when INPUT ATT is used to attenuate (reduce) the level of the analog input signal.

Remote control

VSX-DSOURCE Press to turn on/off other components connected to the receiver.

SOURCE

RECEIVER
2 MULTI CONTROL buttons Press to select control of other components (see Controlling the rest of your system). 3 RCV Switches the remote to controls the receiver (used to select the features above the number buttons. (ex. INPUT ATT, FL DIMMER). Also use this button to set up surround sound. 4 Number buttons/Receiver controls/ ENTER buttons Use the number buttons to directly select a radio frequency or the tracks on a CD, DVD, etc. Press the RCV button first to access the functions above the number buttons. The display flashes when it isnt possible to use a function. The following (except DISPLAY/DISC) are accessed by pressing RCV:

D. ACCESS After pressing, you can access a radio station directly using the number buttons. T. EDIT/GUIDE Press to memorize and name a station for recall using the STATION +/ buttons. Also displays the guides on a digital TV. BAND Switches between the tuner AM and FM bands. CLASS Switches between the three banks (classes) of radio station presets. DTV ON/OFF Switches a digital TV on/off. DTV MENU Displays menus on a digital TV. 6 DVD controls (Press DVD first to access) These controls will also function as DTV controls, depending on the component youve selected.
TOP MENU Displays the disc top menu of a DVD. AUDIO Changes the audio language or channel. SUBTITLE Displays/changes the subtitles included in multilingual DVD-Video discs. ANGLE Switches camera angles on discs with multi-angle scenes.
13 CH +/ Use to select channels when using a TV, VCR, DVR, etc. Also use to skip tracks backward or forward on CDs, DVDs, etc. 14 MASTER VOLUME +/ Use to set the listening volume. 15 MCACC SETUP (Press RCV first to access) Use to setup your speaker system using Multi-Channel Acoustic Calibration (MCACC). MENU button Displays the disc menu of DVD-Video discs. It also displays TV and DTV menus. 16 Transmit icon Blinks to indicate the remote is transmitting control signals. 17 Character display (LCD) The following commands are shown when youre setting the remote to control other components (see Controlling the rest of your system ): SETUP Indicates the setup mode, from which you choose the options below. DIR SET See Direct function.

VSX-D812

INPUT SELECT

MUL C TI ONTROL

DVD/LD TV / SAT VCR/DVR TV CONT

CD-R/TAPE

ADVANCED STEREO/ MIDNIGHT/ ST ANDARD SURROUND DIRECT LOUDNESS CH SELECT TEST TONE

EFFECT

BRAND See Searching for preset codes using brand names.
SEARCH See Searching for preset codes. LEARN See Programming signals from other remote controls. ERASE See Erasing one of the remote control button settings. RESET See Clearing all the remote control settings. READ ID See Confirming preset codes.

INPUT A TT T.EDIT ENTER

GUIDE SUBTITLE MCACC SETUP SLEEP

BAND DTV ON/OFF DTV INFO