PIONEER VSX-52TX/KUXJ/CA Service Manual

Cover page of PIONEER VSX-52TX/KUXJ/CA Service Manual

Service Manual for PIONEER VSX-52TX/KUXJ/CA, downloadable as a PDF file.

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ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2004
MASTER VOLUME
DVD/LD
TV/SAT
DVR/VCR
VIDEO1
CD
CD-R/
TAPE/MD
STANDBY/ON
MULTI JOG
TUNERVIDEO2
VSX-52TX
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
LISTENING MODE
SELECT
ENTER
VSX-52TX
RRV2977
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-52TX
VSX-1014TX-K
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
Power Requirement
Remarks
VSX-52TX
KUXJ/CA
AC120V
VSX-1014TX-K
KUXJC
AC120V
For details, refer to "Important symbols for good services".
T-ZZR JUNE 2004 printed in Japan
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ORDER NO.
PIONEER CORPORATION 4-1, Meguro 1-chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2004
MASTER VOLUME
DVD/LD
TV/SAT
DVR/VCR
VIDEO1
CD
CD-R/
TAPE/MD
STANDBY/ON
MULTI JOG
TUNERVIDEO2
VSX-52TX
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
LISTENING MODE
SELECT
ENTER
VSX-52TX
RRV2977
AUDIO/VIDEO MULTI-CHANNEL RECEIVER
VSX-52TX
VSX-1014TX-K
THIS MANUAL IS APPLICABLE TO THE FOLLOWING MODEL(S) AND TYPE(S).
Model
Type
Power Requirement
Remarks
VSX-52TX
KUXJ/CA
AC120V
VSX-1014TX-K
KUXJC
AC120V
For details, refer to "Important symbols for good services".
T-ZZR JUNE 2004 printed in Japan
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VSX-52TX
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SAFTY 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 cer tain electrical par ts contain chemicals which are known to the state of California to
cause cancer, bir th 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)
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.
ANY MEASUREMENTS NOT WITHIN THE
LIMITS OUTLINED ABOVE ARE INDICATIVE
OF A POTENTIAL SHOCK HAZARD AND
MUST BE CORRECTED BEFORE RETURN-
ING 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.
(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 ter minals,
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.
Device
under
test
Leakage
current
tester
Earth
ground
Reading should
not be above
0.5 mA
Also test with
plug reversed
(Using AC adapter
plug as required)
Test all
exposed metal
surfaces
AC Leakage Test
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CONTENTS
SAFTY INFORMATION ........................................................................................................................................2
1. SPECIFICATIONS .............................................................................................................................................5
2. EXPLODED VIEWS AND PARTS LIST.............................................................................................................6
2.1 PACKING ....................................................................................................................................................6
2.2 EXTERIOR SECTION ................................................................................................................................8
2.3 CHASSIS SECTION .................................................................................................................................10
2.4 REAR PANEL SECTION ..........................................................................................................................12
2.5 HEAT SINK SECTION ..............................................................................................................................14
2.6 FRONT PANEL SECTION ........................................................................................................................16
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................18
3.1 BLOCK DIAGRAM ....................................................................................................................................18
3.1.1 AUDIO SECTION ...............................................................................................................................18
3.1.2 VIDEO and DISPLAY SECTIONS ......................................................................................................20
3.1.3 DSP SECTION ...................................................................................................................................22
3.1.4 POWER SUPPLY SECTION ..............................................................................................................24
3.2 OVERALL WIRING DIAGRAM .................................................................................................................26
3.3 MULTI CH I/O and AUDIO CONNECT ASSYS ........................................................................................28
3.4 COMPOSITE V ASSY ..............................................................................................................................30
3.5 S VIDEO ASSY.........................................................................................................................................32
3.6 COMPONENT ASSY................................................................................................................................34
3.7 OPTICAL-IN,H.P,FRONT-IN,FRONT-IN CONNECT and 12VTRIG ASSYS .............................................36
3.8 MAIN CONTROL ASSY (1/3) ...................................................................................................................38
3.9 MAIN CONTROL ASSY (2/3) ...................................................................................................................40
3.10 MAIN CONTROL ASSY (3/3) .................................................................................................................42
3.11 DSP ASSY (1/2) .....................................................................................................................................44
3.12 DSP ASSY (2/2) .....................................................................................................................................46
3.13 VOLUME, DISPLAY and MULTI JOG ASSYS ........................................................................................48
3.14 POWER AMP IN and POWER PROTECT ASSYS ................................................................................50
3.15 POWER AMP-L and POSI 1 L ASSYS...................................................................................................52
3.16 POWER AMP-R and POSI 1 R ASSYS .................................................................................................54
3.17 REGULATOR ASSY ...............................................................................................................................56
3.18 TRANS 2-1, TRANS 2-2, DIODE, VH TR and SP/PS ASSYS ................................................................58
[ 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.
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VSX-52TX
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3.19 REAR TOP, TRANS SIDE, TRANS 1 and PRIMARY ASSYS ................................................................ 60
4. PCB CONNECTION DIAGRAM ..................................................................................................................... 62
4.1 MULTI CH I/O ASSY ................................................................................................................................ 63
4.2 AUDIO CONNECT ASSY ........................................................................................................................ 64
4.3 COMPOSITE V ASSY.............................................................................................................................. 65
4.4 S VIDEO ASSY ........................................................................................................................................ 66
4.5 VIDEO SIDE and OPTICAL-IN ASSYS ................................................................................................... 67
4.6 COMPONENT ASSY ............................................................................................................................... 68
4.7 FRONT IN and FRONT-IN CONNECT ASSYS........................................................................................ 69
4.8 MAIN CONTROL ASSY ........................................................................................................................... 70
4.9 DISPLAY ASSY........................................................................................................................................ 74
4.10 HEADPHONE, VOLUME and MULTI JOG ASSYS................................................................................ 76
4.11 POWER AMP IN ASSY.......................................................................................................................... 78
4.12 12V TRIGGER ASSY ............................................................................................................................. 79
4.13 DSP ASSY ............................................................................................................................................. 80
4.14 POWER PROTECT, POWER AMP-L and POSI 1 L ASSYS ................................................................. 82
4.15 POWER AMP-R and POSI 1 R ASSYS................................................................................................. 86
4.16 REGULATOR ASSY............................................................................................................................... 90
4.17 SP / PS ASSY ........................................................................................................................................ 94
4.18 TRANS 2-1, DIODE and VH TR ASSYS ................................................................................................ 96
4.19 TRANS SIDE ASSY ............................................................................................................................... 98
4.20 TRANS 2-2, TRANS 1 and PRIMARY ASSYS..................................................................................... 100
4.21 REAR TOP ASSY ................................................................................................................................ 102
5. PCB PARTS LIST ......................................................................................................................................... 103
6. ADJUSTMENT ............................................................................................................................................. 113
7. GENERAL INFORMATION ........................................................................................................................... 114
7.1 DIAGNOSIS ........................................................................................................................................... 114
7.1.1 PROTECTION CIRCUIT CONTROL SPECIFICATION ................................................................... 114
7.1.2 HOW TO DIAGNOSE THE AMPLIFIER SECTION ......................................................................... 116
7.1.3 HOW TO DIAGNOSE THE UNIT WITH THE POWER AMPLIFIER SECTION REMOVED ............ 117
7.1.4 DISASSEMBLY................................................................................................................................ 120
7.1.5 TROUBLE SHOOTING OF THE DSP ASSY ................................................................................... 124
7.2 PARTS.................................................................................................................................................... 133
7.2.1 IC ..................................................................................................................................................... 133
7.3 CLEANING............................................................................................................................................. 142
8. PANEL FACILITIES ...................................................................................................................................... 143
8.1 FRONT PANEL ...................................................................................................................................... 143
8.2 DISPLAY ................................................................................................................................................ 145
8.3 REMOTE CONTROL UNIT .................................................................................................................... 147
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1. SPECIFICATIONS
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 0.09%** total harmonic distortion (front).
Continuous Power Output
Front .....................110 W + 110 W (20 Hz-20 kHz, 0.09%)
Center .................................110 W (20 Hz-20 kHz, 0.09%)
Surround ..............110 W + 110 W (20 Hz-20 kHz, 0.09%)
Surround back ......110 W + 110 W (20 Hz-20 kHz, 0.09%)
Audio Section
Input (Sensitivity/Impedance)
LINE .................................................... 335 mV/47 k
Frequency Response
LINE ............................. 5 Hz to 100,000 Hz
dB
Output (Level/Impedance)
REC .................................................... 335 mV/2.2k
Tone Control
BASS ................................................
± 6 dB (100 Hz)
TREBLE .............................................
± 6 dB (10 kHz)
LOUDNESS ....................... +4/+2 dB (100Hz/10 kHz)
(at volume position ­40dB)
Signal-to-Noise Ratio (IHF, short circuited, A network)
LINE ................................................................103 dB
Signal-to-Noise Ratio [EIA, at 1W (1kHz)]
LINE ..................................................................83 dB
* Measured pursuant to the Federal Trade Commission's
Trade Regulation rule on Power Output Claims for Amplifiers
** Measured by Audio Spectrum Analyzer
Composite Video / S-Video Section
Input (Sensitivity/Impedance) ...........................1 Vp-p/75
Output (Level/Impedance) ................................1 Vp-p/75
Signal-to-Noise Ratio ............................................... 65 dB
Frequency Response ......................... 5 Hz to 10 MHz dB
Component Video Sectio
Input (Sensitivity/Impedance) ...........................1 Vp-p/75
Output (Level/Impedance) ................................1 Vp-p/75
Signal-to-Noise Ratio ............................................... 65 dB
Frequency Response ........................ 5 Hz to 40 MHz dB
FM Tuner Sectio
Frequency Range ........................... 87.5 MHz to 108 MHz
Usable Sensitivity ......... Mono: 13.2 dBf, IHF (1.3
µV/75)
50 dB Quieting Sensitivity ......................... Mono: 20.2 dBf
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
± 1dB
Antenna Input ........................................... 75
unbalanced
AM Tuner Sectio
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, 60 Hz
Power Consumption .................................... 480 W, 630 VA
In standby .............................................................. 0.43 W
AC Outlet ........................................ (switched) 100 W MAX.
Dimensions ....................... 420 (W) x 173 (H) x 465 (D) mm
(16 9/16 (W) x 613/16 (H) x 185/16 (D) in.)
Weight (without package) ...........................15.5 kg (34.2 lb)
Furnished Parts
Microphone (for Auto MCACC setup) ..........................1
Microphone stand ........................................................ 1
AA/LR6 dry cell batteries ................................................ 2
Remote control ..................................................................1
AM loop antenna ............................................................... 1
FM wire antenna ................................................................1
Warranty card .................................................................... 1
These operating instructions ..............................................1
Note
· Specifications and the design are subject to possible
modifications without notice, due to improvements.
Cleaning the uni
· 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.

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