Pioneer VSXD-412 Service manual
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
INPUT
SELECTOR
MULTIJOG
STANDBY
STANDBY/ON
PHONES
STATION
TUNEREDIT INPUTATT FLDIMMERCLASS BAND MPX
MULTIJOG
ADVANCED
STEREO/
SIGNAL
MONITOR
STANDARD
TUNING
SURROUND
DIRECT
SELECT
LISTENINGMODE
MIDNIGHT LOUDNESS TONE QUICKSETUP
ENTER
MASTERVOLUME
DOWN
MULTIJOG
UP
R
VSX-D412-K
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-D412-K
VSX-D412-S
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model Type Power Requirement Remarks
VSX-D412-K KUXJI AC120V
VSX-D412-S KUXJI AC120V
VSX-D412-K KCXJI AC120V
VSX-D412-S KCXJI AC120V
ORDER NO.
RRV2727
For details, refer to "Important symbols for good services" .
T-ZZR FEB. 2003 printed in Japan
1234
SAFTY INFORMATION
A
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
B
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 MODÈLE CANADIEN SEULEMENT)
C
Les symboles de fusible (fusible de type rapide) et/ou (fusible de type lent) sur CCI indiquent que
les pièces de remplacement doivent avoir la même désignation.
(FOR USA MODEL ONLY)
1. SAFETY PRECAUTIONS
The following check should be performed for the
continued protection of the customer and service
technician.
LEAKAGE CURRENT CHECK
Measure leakage current to a known earth ground
(water pipe, conduit, etc.) by connecting a leakage
D
E
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.
Reading should
not be above
0.5 mA
Earth
ground
Device
under
test
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
Leakage
current
tester
AC Leakage Test
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 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 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.
on the schematics and
F
2
1234
VSX-D412-K
[ 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:
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.
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.
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.
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.
5678
A
B
C
D
E
56
VSX-D412-K
F
7
8
3
1234
CONTENTS
SAFTY INFORMATION ....................................................................................................................................... 2
A
B
C
D
1. SPECIFICATIONS ............................................................................................................................................5
2. EXPLODED VIEWS AND PARTS LIST ............................................................................................................ 6
2.1 PACKING ................................................................................................................................................... 6
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 D.D & INPUT(1/4) ASSY.......................................................................................................................... 16
3.4 D.D & INPUT(2/4) ASSY.......................................................................................................................... 18
3.5 D.D & INPUT(3/4) ASSY.......................................................................................................................... 20
3.6 D.D & INPUT(4/4) ASSY.......................................................................................................................... 22
3.7 AMP & PRIMARY(1/2), TRANS2 and TRANS3 ASSYS .......................................................................... 24
3.8 AMP & PRIM.(2/2), REG., HASHIGETA, AMP INPUT and TRANS1 ASSYS.......................................... 26
3.9 VIDEO and 6CH IN ASSYS ..................................................................................................................... 28
3.10 FRONT, R.ENCODER and POWER SW ASSYS .................................................................................. 30
3.11 DIGITAL IN, H.P. and KAWA ASSYS ..................................................................................................... 32
3.12 FM/AM TUNER MODULE...................................................................................................................... 34
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 36
4.1 TRANS1, TRANS2 and TRANS3 ASSYS................................................................................................ 37
4.2 D.D & INPUT ASSY ................................................................................................................................. 38
4.3 AMP INPUT and AMP & PRIMARY ASSYS............................................................................................ 42
4.4 FRONT, POWER SW, H.P. and R.ENCODER ASSYS ............................................................................ 44
4.5 REGULATOR, HASHIGETA and KAWA ASSYS...................................................................................... 48
4.6 DIGITAL IN, 6CH IN and VIDEO ASSYS ................................................................................................. 50
4.7 FM/AM TUNER MODULE........................................................................................................................ 52
5. PCB PARTS LIST ...........................................................................................................................................53
6. ADJUSTMENT ............................................................................................................................................... 62
7. GENERAL INFORMATION............................................................................................................................. 63
7.1 DISASSEMBLY and DIAGNOSIS ............................................................................................................63
7.1.1 DISASSEMBLY and PCB LOCATION................................................................................................... 63
7.1.2 U-COM BLOCKDIAGRAM.................................................................................................................... 64
7.1.3 PROTECTION CIRCUIT....................................................................................................................... 65
7.1.4 POWER ON SEQUENCE..................................................................................................................... 66
7.1.5 POWER OFF SEQUENCE ................................................................................................................... 67
7.2 PARTS...................................................................................................................................................... 68
7.2.1 IC .......................................................................................................................................................... 68
7.2.2 DISPLAY ............................................................................................................................................... 77
8. PANEL FACILITIES ........................................................................................................................................ 79
E
F
4
1234
VSX-D412-K
Î
Accessories
Remote control unit
(XXD3038)
AM loop antenna
(ATB7009)
FM wire antenna
(ADH7004)
AA size IEC R6P
Dry cell batteries (x2)
Amplifier Section
Continuous average power output of 100 watts* per channel, min.,
at 8 ohms, from 20 Hz to 20,000 Hz with no more than 0.2 %** total
harmonic distortion (front).
Continuous Power Output
Front .................................... 100 W per channel (1kHz, 1.0 %, 8 Ω
)
Center ..................................................... 100 W (1kHz, 1.0 %, 8 Ω)
Surround .............................. 100 W per channel (1kHz, 1.0 %, 8 Ω)
Surround Back ....................100 W per channel (1kHz, 1.0 %, 8 Ω)
Input (Sensitivity/Impedance)
CD, VCR/DVR, CD-R/TAPE/MD, DVD/LD, TV/SAT ... 200 mV/47 kΩ
Frequency Response
CD, VCR/DVR, CD-R/TAPE/MD, DVD/LD,TV/SAT
.................................................................. 5 Hz to 100,000 Hz dB
Output (Level/Impedance)
VCR/DVR REC, CD-R/TAPE/MD REC .................... 200 mV/2.2 kΩ
Tone Control
BASS ...................................................................... ± 6 dB (100 Hz)
TREBLE .................................................................. ± 6 dB (10 kHz)
LOUDNESS ..................................... +9 dB/+9 dB (100 Hz/10 kHz)
Signal-to-Noise Ratio (IHF, short circuited, A network)
CD, VCR/DVR, CD-R/TAPE/MD,DVD/LD, TV/SAT .................. 96 dB
Signal-to Noise Ratio [EIA, at 1 W (1 kHz)]
CD, VCR/DVR, CD-R/TAPE/MD,DVD/LD, TV/SAT .................. 79 dB
Video Section
Input (Sensitivity/Impedance)
VCR/DVR, DVD/LD, TV/SAT ......................................... 1 Vp-p/75 Ω
Output (Level/Impedance)
VCR/DVR ...................................................................... 1 Vp-p/75 Ω
Frequency Response
VCR/DVR, DVD/LD,TV/SAT ] MONITOR ........ 5 Hz to 7 MHz dB
Signal-to-Noise Ratio .............................................................. 55 dB
Cross Talk ............................................................................... 55 dB
FM Tuner Section
Frequency Range.......................................... 87.5 MHz to 108 MHz
Usable Sensitivity ....................... Mono:13.2 dBf, IHF (1.3 µV/ 75 Ω)
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)
Stereo Separation ...................................................... 40 dB (1 kHz)
Frequency Response .................................30 Hz to 15 kHz (±1 dB)
Antenna Input (DIN) .............................................. 75 Ω unbalanced
AM Tuner Section
Frequency Range........................................... 530 kHz to 1,700 kHz
Sensitivity (IHF, Loop antenna) ......................................... 350 µV/m
Selectivity ................................................................................25 dB
Signal-to-Noise Ratio .............................................................. 50 dB
Antenna ...................................................................... Loop antenna
Miscellaneous
Power Requirements ............................................... AC 120 V, 60Hz
Power Consumption
VSX-D412-K
VSX-D412-S
VSX-D412-S
...........................................................
...........................................................
260W (KU)
340VA (KC)
In Standby .............................................................................1 W
AC Outlet................................................ 100 W MAX. (SWITCHED)
Dimensions ................................... 420 (W) x 158 (H) x 393 (D) mm
(16-9/16 (W) x 6-4/16 (H) x 15-8/16 (D) in.)
Weight (without package)
kgVSX-D412-K
..........................................................................
9.0
(19.8 lb)
Furnished Parts
AM loop antenna ............................................................................ 1
FM wire antenna ............................................................................ 1
Dry cell batteries (AA size IEC R6P) .............................................. 2
Remote control ............................................................................... 1
Operating instructions .................................................................... 1
Specifications and the design are subject to possible modifications
without notice, due to improvements.
* Measured pursuant to the Federal Trade Commission’s Trade
Regulation rule on Power Output Claims for Amplifiers.
** Measured by Audio Spectrum Analyzer.
+0
– 3
+0
– 3
"DTS" ,“ES” and "DTS Digital Surround" are trademarks
of Digital Theater Systems, Inc.
Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic II” and the double D symbol 2 are
trademarks of Dolby Laboratorories.
INPUT SELECTOR
CDTV/SATDVD/LD
RECEIVER
DVD
DVD CONTROL
SUB TITLE
AUDIO
TEST
TONE
LEVEL EFFECT
MENU
DVD
TUNER
EDIT
RECEI-
VER
TOP MENU
STANDARD STEREO
ADVANCED
SURROUND
INPUT
ATT
FL
DIMMER
MUTE
MASTER
VOLUME
CD-R/
TAPE/MD
VCR/
DVR
ENTER
SETUP
AV RECEIVER
TUNING
BAND CLASS MPX
DISPLAY
CH SELECT
STATION
MIDNIGHT/
LOUDNESS
TUNER
1
¢4
¡
78
3
5678
1. SPECIFICATIONS
A
B
C
D
56
7
VSX-D412-K
E
F
5
8
1234
2. EXPLODED VIEWS AND PARTS LIST
NOTES:
A
2.1 PACKING
B
C
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.
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.)
1
3
2
7
4
9
5
8
/KCXJI Type
6
11
10
D
14
E
12
13
F
6
1234
VSX-D412-K
5678
PACKING parts List
Mark
Mark
No. Description Part No.
1 FM wire antenna ADH7004
NSP 2 Warranty Card ARY7045
3 AM loop antenna ATB7009
NSP 4 Dry cell batteries (AA/R6P) VEM1031
5 Operating instructions XRB3019
(English)
6 Operating instructions See Contrast table(2)
7 Remote Control Unit XXD3038
No. Description Part No.
8 Battery Cover AZA7378
NSP 9 Literature Bag AHG1180
10 Packing Sheet AHG7069
11 Left Pad R5 XHA3032
12 Right Pad R5 XHA3033
13 Packing Case See Contrast table(2)
NSP 14 Accessory Board XHB3008
(2) CONTRAST TABLE
VSX-D412-K/KUXJI, /KCXJI and VSX-D412-S/KUXJI, /KCXJI are constructed the same except for the following :
Mark No. Symbol and Description
6 Operating Instructions (French) Not used Not used XRC3077 XRC3077
13 Packing Case XHD3322 XHD3323 XHD3322 XHD3323
VSX-D412-K/
KUXJI
VSX-D412-S/
KUXJI
VSX-D412-K/
KCXJI
VSX-D412-S/
KCXJI
A
B
C
D
E
56
VSX-D412-K
F
7
8
7
1234
2.2 EXTERIOR SECTION
A
53
41
56
53
53
B
24
34
25
A
23
53
N
1
A
53
3
B
6
CONTACT
SIDE
26
53
53
E
8
M
39(1/2)
43
F
53
53
53
39(2/2)
K
13
F
53
53
53
53
45
53
53
53
28
F
18
X
E
31
27
57
N
E
C
D
53
21
22
54
53
2
B
50
J
53
C
H
4
17
D
53
H
54
K
L
D
I
D
M
L
K
16
G
M
J
58
53
50
5
53
53
I
22
53
30
C
9
53
46
56
40
I
J
49
48
L
15
47
H
53
53
53
C
51
55
44
53
29
55
20
G
53
E
VSX-D412-K
/ Type
36
Accessory of
Front Panel
53
52
37
A
38
53
NON-CONTACT
SIDE
53
Refer to
"2.3 FRONT PANEL SECTION".
B
53
36
VSX-D412-K/ Type
35
53
VSX-D412-S/ Type
F
8
VSX-D412-K
1234
>
>
>
5678
EXTERIOR SECTION parts List
Mark
No. Description Part No.
1 D.D & INPUT ASSY XWX3044
2 AMP & PRIMAR ASSY XWZ3532
3 REGULATOR ASSY XWZ3544
4 AMP INPUT ASSY XWZ3547
5 TRANS2 ASSY XWZ3555
6 HASHIGETA ASSY XWZ3566
7• • • • •
8 6CH IN ASSY XWZ3507
9 DIGITAL IN ASSY XWZ3517
10 • • • • •
11 • • • • •
12 • • • • •
13 KAWA ASSY XWZ3529
14 • • • • •
15 VIDEO ASSY XWZ3490
NSP 16 TRANS1 ASSY XWZ3552
NSP 17 TRANS3 ASSY XWZ3560
18 FM/AM TUNER MODULE AXQ7231
19 • • • • •
20 Power Transformer (T1) XTS3058
21 Fuse (FU2 : 8A) REK1086
22 Fuse (FU1, FU701: 10A) REK1087
23 Power Cord ADG7024
24 Cord Stopper CM-22C
25 28P F•F•C/30V (J31) XDD3097
DD CN102 - FRONT CN402
26 17P F•F•C/30V (J32) XDD3098
KAWA CN5001 - FRONT CN401
27 7P F•F•C/30V (J33) XDD3099
KAWA CN5004 - VIDEO CN503
28 13P F•F•C/30V (J34) XDD3100
KAWA CN5005 - FM/AM TUNER CN201
29 19P F•F•C/30V (J35) XDD3101
DD CN106 - AMP INPUT CN254
Mark
No. Description Part No.
30 23P F•F•C/30V (J36) XDD3102
AMP CN53 - REGULATOR CN801
31 7P F•F•C/30V (J37) XDD3103
DD CN9101 - DIGITAL IN CN1901
32 • • • • •
33 • • • • •
34 9P F•F•C/30V (J48) XDD3106
DD CN104 - 6CH IN CN307
35 Insulator See Contrast table(2)
36 Rubber Sheet See Contrast table(2)
NSP 37 Under Base 409 ANA7094
38 Insulator AMR7198
39 FFC Cover R5 XMR3047
40 Rear Panel XNC3193
41 Bonnet D412 See Contrast table(2)
42 • • • • •
43 Tuner Shield R5 XNG3072
44 PCB Angle R5 XNG3073
45 Reg Support R5 XNG3074
NSP 46 Heat Sink Assy 0.4 ANH7112
47 Heat Sink Angle F ANG7251
48 Heat Sink Angle R ANG7252
NSP 49 Heat Sink 0.4 ANH7109
50 Screw 3x23 ABA7043
51 PCB Mold AMR2533
NSP 52 Energy Star Label AAX7876
53 Screw BBZ30P080FMC
54 Screw BBZ30P200FMC
55 Screw FBT40P080FZK
56 Screw See Contrast table(2)
NSP 57 N Label 412S See Contrast table(2)
58 Holder XWZ3572
A
B
C
D
(2) CONTRAST TABLE
VSX-D412-K/KUXJI, /KCXJI and VSX-D412-S/KUXJI, /KCXJI are constructed the same except for the following :
Mark No. Symbol and Description
36
Rubber Sheet
35
Insulator
41 Bonnet XZN3112 XZN3123 XZN3112 XZN3113
56
Screw
NSP 57
N Label 412S
56
VSX-D412-K/
KUXJI
AEB1111 Not used AEB1111 Not used
Not used PNW2766 Not used PNW2766
FBT40P080FZK FBT40P080FNI FBT40P080FZK FBT40P080FZI
Not used XAL3149 Not used XAL3149
VSX-D412-K
VSX-D412-S/
KUXJI
7
VSX-D412-K/
KCXJI
VSX-D412-S/
KCXJI
8
E
F
9
1234
2.3 FRONT PANEL SECTION
A
B
6
16
13
2
10
17
Q
U
3
1
O
16
16
16
16
8
20
16
16
16
C
D
9
18
7
11
14
12
16
16
15
16
16
4
P
E
F
10
1234
VSX-D412-K
5678
FRONT PANEL SECTION parts List
Mark
No. Description Part No.
1 FRONT ASSY XWZ3587
2 POWER SW ASSY XWZ3510
3 H.P. ASSY XWZ3513
4 R. ENCODER ASSY XWZ3511
5• • • • •
Mark
No. Description Part No.
11 Select Knob See Contrast table(2)
12 Volume Knob See Contrast table(2)
13 Power Button See Contrast table(2)
14 Sub Panel See Contrast table(2)
15 Jog Button See Contrast table(2)
A
6 Front Panel See Contrast table(2)
7 Sub Button See Contrast table(2)
8 Earth Plate R5 HP XNG3066
9 Pioneer Badge See Contrast table(2)
10 Led Lens 1.6 XAK3308
16 Screw PPZ30P080FMC
17 Screw BBZ30P080FMC
18 D Panel R5 W XAK3274
19 • • • • •
NSP 20 C Ring Dim 8.1 XBH3016
(2) CONTRAST TABLE
VSX-D412-K/KUXJI, /KCXJI and VSX-D412-S/KUXJI, /KCXJI are constructed the same except for the following :
Mark No. Symbol and Description
6 Front Panel XMB3110 XMB3111 XMB3110 XMB3111
7 Sub Button XAD3125 XAD3133 XAD3125 XAD3133
9 Pioneer Badge XAM3006 VAM1129 XAM3006 VAM1129
11 Select Knob XAB3023 XAB3024 XAB3023 XAB3024
12 Volume Knob XAB3025 XAB3026 XAB3025 XAB3026
13 Power Button XAD3123 XAD3129 XAD3123 XAD3129
14 Sub Panel XAK3338 XAK3386 XAK3338 XAK3386
15 Jog Button XAD3124 XAD3131 XAD3124 XAD3131
VSX-D412-K/
KUXJI
VSX-D412-S/
KUXJI
VSX-D412-K/
KCXJI
VSX-D412-S/
KCXJI
B
C
D
E
F
56
VSX-D412-K
7
8
11
1234
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
A
K
CN101
10
D.D & INPUT ASSY
AK4586
39-40
IC9501
IC9502
IC9503
A
IC9201
NJM2100M
31
30
28
26
27
NJM4558MD
(LPF)
IC9701
21
IC9702
21
IC9703
31
IC9703
57
(FL/FR)
(SL/SR)
IC9601
NJU7313
AM
(SP
config)
(C)
(SW)
NJM4558MD
(6dB AMP)
IC9704
21
IC9705
21
3
4
IC102
NJU7312AM
(EXP/DSP)
6
8
7
21
20
5
9
19
IC101
TC9273F-007
(FUNCTION SEL)
7
5
4
3
2
8
9
10 11
2
15
IC1901
5
CN1901
6
J
12
2
CN9101
IC9508
BS62LV
1024TC-70
(RAM for
AAC)
IC9504
PDN030A
(ROM for
DECODE)
3
IC104
(ADC)
(DIR)
32
10
43
IC9101
1
(CODEC)
(DAC)
11-13
CRYSTAL
DSP
(for DECODE)
22
TC74
VHC574F
TC74
VHC574F
(8 16bit)
AXQ7231
CN201
7
X
B
C
DIGITAL IN ASSY
IC303
3
1
M
IC302
5
7
D
3
IC302
1
CN307
3
9
5
CN104
7
1
5
11
12
10
6CH IN ASSY
E
F
12
VSX-D412-K
1234
5678
A
CN1551
6
14.1/24.1 14.7/27.3 13.8
Q1552
U
17
15
IC103
9
11
IC105
uPC2570
(PRE AMP)
31
57
IC106
34
57
33
IC107
31
4
CN106
CN601
9
H
85
AMP INPUT ASSY
111
CN702
Q603
Q601
Q653
Q651
Q632
6
IC601
22
15
B
AMP & PRIMARY ASSY
IC602
24
24
26
IC601
26
RY751
B
RY753
C
RY752
6
36
Q631
D
VIDEO ASSY
9
5
7
3
6
(CONPONENT SEL)
11
1
L
IC301
Q112
POWER AMP
IC601, IC602
T+12V
B
O
A
A
5
IC107
CN402
IC805
CN101
CN101
+BVH
-BVH
NECK+B
NECK-B
+BVL
-BVL
FL AC
FL AC
+12V
-12V
D+5V
A+5V
7
14
CN101
Q701
Q702
IC801
IC802
IC803
IC804
E
E
1
CN302
D701
D702
D801–D804
D721–D724
Q303
A
U+5V
T1
POWER
TRANSFORMER
CN101
IC51
RY51
L
D51-D54
E
T51
AC IN
B
F
56
VSX-D412-K
7
8
13
1234
3.2 OVERALL WIRING CONNECTION DIAGRAM
A
R.ENCODER
ASSY
(XWZ3511)
B
P
FRONT ASSY
O
(XWZ3587)
H
AMP INPUT ASSY
(XWZ3547)
C
D.D &
F
HASHIGETA
ASSY
D
(XWZ3566)
KAWA
ASSY
(XWZ3529)
K
INPUT
ASSY
(XWX3044)
A
A 1/4,
A 2/4,
A 3/4,
E
A 4/4
REGULATOR
ASSY
(XWZ3544)
VIDEO
ASSY
(XWZ3490)
E
X
L
FM/AM TUNER
MODULE
14
(AXQ7231)
VSX-D412-K
1234
F
M
6CH IN ASSY
(XWZ3507)
5678
Note : When ordering service parts, be sure to refer to "EXPLODED VIEWS and PARTS LIST" or "PCB PARTS LIST".
POWER SW ASSY
Q
(XWZ3510)
U
H.P. ASSY
(XWZ3513)
D
TRANS3
ASSY
(XWZ3560)
J7J6
A
B
C
J3(J8)
B
B 1/2,
B 2/2
AMP&
PRIMARY
ASSY
(XWZ3532)
(XTS3058)
TRANS2
ASSY
(XWZ3555)
TRANS1
ASSY
(XWZ3552)
I
FU701 : REK1087(10A/125V)
D
C
J1J2
J4
J5
FU1 : REK1087(10A/125V)
FU2 : REK1086(8A/125V)
E
J
DIGITAL IN
ASSY
(XWZ3517)
56
VSX-D412-K
7
F
ADG7024
15
8
1234
3.3 D.D & INPUT(1/4) ASSY
A
A
B
C
D.D & INPUT ASSY
1/4
(XWX3044)
A 2/4
D
E
F
CN802
E
A
1/4
A
16
1234
VSX-D412-K
5678
A
CN307
M
A 4/4
: The power supply is shown with the marked box.
A 4/4
A 2/4,4/4
A 2/4
A 4/4
A 2/4,3/4,4/4
CN402
O
B
C
A 2/4
(L)
: AUDIO SIGNAL ROUTE (Analog, Lch)
(R)
: AUDIO SIGNAL ROUTE (Analog, Rch)
56
A 2/4 A 3/4
,
VSX-D412-K
D
E
CN1002
F
F
A
1/4
7
8
17
1234
3.4 D.D & INPUT(2/4) ASSY
A
A
D.D & INPUT ASSY
2/4
(XWX3044)
CN1901
J
A 1/4
B
A 1/4
C
A 1/4
A 4/4
A 3/4
D
E
A 1/4
A 3/4
F
A
2/4
A
18
1234
VSX-D412-K
5678
A
A 1/4
B
A 1/4
A 1/4
CN254
H
C
D
A 1/4
: AUDIO SIGNAL ROUTE
(FL)
: AUDIO SIGNAL ROUTE (Front L ch)
(SL)
: AUDIO SIGNAL ROUTE (Rear L ch)
(SW)
: AUDIO SIGNAL ROUTE (Sub Woofer)
(C)
: AUDIO SIGNAL ROUTE (Center)
56
VSX-D412-K
A 1/4
E
F
A
2/4
7
8
19
1234
3.5 D.D & INPUT(3/4) ASSY
A
B
C
D
E
A 1/4
F
A
3/4
A
20
1234
VSX-D412-K
5678
A
A
D.D & INPUT ASSY
3/4
(XWX3044)
B
C
A 2/4
: The power supply is shown with the marked box.
A 2/4
A 1/4
D
E
F
56
VSX-D412-K
A
3/4
7
8
21
1234
3.6 D.D & INPUT(4/4) ASSY
A
A 2/4
B
C
A 1/4
A
D.D & INPUT ASSY
4/4
(XWX3044)
A 1/4
D
E
A 1/4
F
A 1/4
A
4/4
A
22
1234
VSX-D412-K
5678
A
A 1/4
B
C
D
E
56
VSX-D412-K
F
A
4/4
7
8
23
1234
3.7 AMP & PRIMARY(1/2), TRANS2 and TRANS3 ASSYS
A
B 1/2
B
C
CN253
AMP&PRIMARY ASSY (XWZ3532)
H
D
E
F
24
B
1/2
VSX-D412-K
1234
B 2/2
5678
A
CAUTION : FOR CONTINUED PROTECTION
AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TYPE
NO. 49101.6 FOR IC853 MFD, BY
LITTELFUSE INC.
TRANS3
ASSY
(XWZ3560)
D
POWER
TRANSFORMER
B
C
TRANS2
ASSY
(XWZ3555)
REK1087
(10A)
U
1551
: AUDIO SIGNAL ROUTE
(FL)
: AUDIO SIGNAL ROUTE (Front L ch)
(SL)
: AUDIO SIGNAL ROUTE (Rear L ch)
(SW)
: AUDIO SIGNAL ROUTE (Sub Woofer)
(C)
: AUDIO SIGNAL ROUTE (Center)
• NOTE FOR FUSE REPLACEMENT
CAUTION -
FOR CONTINUED PROTECTION AGAINST RISK OF FIRE.
REPLACE WITH SAME TYPE AND RATINGS ONLY.
56
VSX-D412-K
C
B 2/2
D412
CAUTION : FOR CONTINUED PROTECTION
CAUTION : FOR CONTINUED PROTECTION
CAUTION : FOR CONTINUED PROTECTION
CAUTION : FOR CONTINUED PROTECTION
7
AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TYPE
NO. 491.125 FOR IC701 AND IC702
MFD, BY LITTELFUSE INC.
AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TYPE
NO. 49101.6 FOR IC851 AND IC852
MFD, BY LITTELFUSE INC.
AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TYPE
NO. 491001 FOR IC603 MFD, BY
LITTELFUSE INC.
AGAINST RISK OF FIRE.
REPLACE ONLY WITH SAME TYPE
NO. 491010 FOR IC604, IC605, IC606,
AND IC607 MFD, BY LITTELFUSE INC.
B
1/2
C D
8
25
D
E
F
Loading...