Table Of Contents - Pioneer VSX-55TXi Service Manual

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[ 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
SAFTY INFORMATION ........................................................................................................................................2
1. SPECIFICATIONS .............................................................................................................................................5
2. EXPLODED VIEWS AND PARTS LIST.............................................................................................................6
2.1 PACKING ....................................................................................................................................................6
2.2 EXTERIOR SECTION ................................................................................................................................8
2.3 REAR PANEL SECTION ..........................................................................................................................10
2.4 HEAT SINK SECTION ..............................................................................................................................12
2.5 FRONT PANEL SECTION ........................................................................................................................14
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ..........................................................................................16
3.1 BLOCK DIAGRAM....................................................................................................................................16
3.1.1 AUDIO BLOCK DIAGRAM .................................................................................................................16
3.1.2 DSP BLOCK DIAGRAM .....................................................................................................................18
3.1.3 1394 BLOCK DIAGRAM ....................................................................................................................20
3.1.4 POWER AMP BLOCK DIAGRAM ......................................................................................................21
3.1.5 VIDEO BLOCK DIAGRAM .................................................................................................................22
3.2 OVERALL WIRING DIAGRAM .................................................................................................................24
3.3 7.1 CH I/O, V-AUDIO, FRONT IN and OPTICAL IN ASSYS.....................................................................26
3.4 INPUT CONNECT, RS232C and 12V TRIGGER ASSYS ........................................................................28
3.5 COAXIAL IN ASSY ...................................................................................................................................30
3.6 COMPONENT ASSY................................................................................................................................32
3.7 VIDEO ASSY ............................................................................................................................................34
3.8 MAIN CONTROL ASSY (1/3) ...................................................................................................................36
3.9 MAIN CONTROL ASSY (2/3) ...................................................................................................................38
3.10 MAIN CONTROL ASSY (3/3) .................................................................................................................40
3.11 MIC & F.OPT IN, MIC AMP and DSP CONNECTION ASSYS ...............................................................42
3.12 POWER AMP IN, FAN CONNECTION and FAN DRIVE ASSYS...........................................................44
3.13 DSP ASSY (1/2) .....................................................................................................................................46
3.14 DSP ASSY (2/2) .....................................................................................................................................48
3.15 1394 ASSY (1/2) (VSX-55TXi ONLY) .....................................................................................................50
3.16 1394 ASSY (2/2) (VSX-55TXi ONLY) .....................................................................................................52
3.17 DISPLAY ASSY ......................................................................................................................................54
3.18 VOLUME, MULTI JOG and HEADPHONE ASSYS ................................................................................56
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