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ORDER NO.
CRT5284
AVH-X8500BHS/XNUC

DVD RDS AV RECEIVER


AVH-X8500BHS /XNUC

AVH-X8500BT/XNEW5
AVH-X8500BT/XNUW5
AVH-X8550BT/XNRC
AVH-X8550BT/XNRD
AVH-X8550BT/XNRI
AVH-X8590BT/XNID
This service manual should be used together with the following manual(s):

Model No. Order No. Mech.Module Remarks

CX-3283 CRT4843 LS2 DVD Mech. Module : Circuit Descriptions, Mech. Descriptions, Disassembly




PIONEER CORPORATION 1-1, Shin-ogura, Saiwai-ku, Kawasaki-shi, Kanagawa 212-0031, Japan
PIONEER ELECTRONICS (USA) INC. P.O. Box 1760, Long Beach, CA 90801-1760, U.S.A.
PIONEER EUROPE NV Haven 1087, Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE. LTD. 253 Alexandra Road, #04-01, Singapore 159936
PIONEER CORPORATION 2013
K-ZZZ FEB. 2013 Printed in Japan
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SAFETY INFORMATION

A CAUTION

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 may contain a chemical known to the State of California to cause cancer, or birth defects or other reproductive
B harm.
Health & Safety Code Section 25249.6 - Proposition 65

Where in a manufacturer's service documentation, for example in circuit diagrams or lists
of components, a symbol is used to indicate that a specific component shall be replaced only
by the component specified in that documentation for safety reasons, the following symbol shall
be used:



- Safety Precautions for those who Service this Unit.
When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
C results.

Caution:
1. During repair or tests, minimum distance of 13 cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.

CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.


D CAUTION
This product is a class 1 laser product classi-
fied under the Safety of laser products, IEC
60825-1:2007, and contains a class 1M laser
module. To ensure continued safety, do not re-
move any covers or attempt to gain access to
the inside of the product. Refer all servicing to
qualified personnel.




E CAUTION--CLASS 1M INVISIBLE LASER
RADIATION WHEN OPEN, DO NOT VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS.




WARNING!
The AEL (accessible emission level )of the laser power output is less than CLASS 1
but the laser component is capable of emitting radiation exceeding the limit for
CLASS 1.
A specially instructed person should do servicing operation of the apparatus.
F




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A
Laser diode characteristics
Wave length:
DVD:660 nm to 670 nm
CD:780 nm to 800 nm
Focus lens on Maximum output:
CD:6.26 mW(Emitting period :9 sec.)
DVD:1.27 mW (Emitting period : unlimited)


Additional Laser Caution
B
Transistors Q1103 and Q1104 in PCB drive the laser diodes for DVD and CD
respectively. When Q1103 or Q1104 is shorted between their terminals,
the laser diodes for DVD or CD will radiate beam. If the top cover is removed
with no disc loaded while such short-circuit is continued, the naked eyes may
be exposed to the laser beam.




CAUTION
Danger of explosion if battery is incorrectly replaced.
Replaced only with the same or equivalent type recommended by the manufacturer. C
Discord used batteries according to the manufacturer's instructions.




D




E




F




AVH-X8500BHS/XNUC
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CONTENTS
SAFETY INFORMATION..................................................................................................................................... 2
1. SERVICE PRECAUTIONS ............................................................................................................................... 6
A
1.1 SERVICE PRECAUTIONS ........................................................................................................................ 6
1.2 NOTES ON SOLDERING .......................................................................................................................... 8
2. SPECIFICATIONS ............................................................................................................................................ 9
2.1 SPECIFICATIONS ..................................................................................................................................... 9
2.2 DISC/CONTENT FORMAT ...................................................................................................................... 24
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 25
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 25
3.2 PCB LOCATIONS .................................................................................................................................... 26
3.3 JIGS LIST ................................................................................................................................................ 27
3.4 CLEANING............................................................................................................................................... 27
4. BLOCK DIAGRAM.......................................................................................................................................... 28
4.1 OVERALL CONNECTION DIAGRAM...................................................................................................... 28
B 4.2 BLOCK DIAGRAM ................................................................................................................................... 30
5. DIAGNOSIS.................................................................................................................................................... 41
5.1 OPERATIONAL FLOWCHART ................................................................................................................ 41
5.2 INSPECTION METHOD OF PICKUP UNIT............................................................................................. 42
5.3 DIAGNOSIS FLOWCHART ..................................................................................................................... 45
5.4 ERROR CODE LIST ................................................................................................................................ 65
5.5 CONNECTOR FUNCTION DESCRIPTION ............................................................................................. 69
6. SERVICE MODE ............................................................................................................................................ 71
6.1 MONITOR TEST MODE .......................................................................................................................... 71
6.2 DVD TEST MODE ................................................................................................................................... 89
7. DISASSEMBLY .............................................................................................................................................. 94
8. EACH SETTING AND ADJUSTMENT ......................................................................................................... 101
C
8.1 DVD ADJUSTMENT .............................................................................................................................. 101
8.2 PCL OUTPUT CONFIRMATION............................................................................................................ 106
9. EXPLODED VIEWS AND PARTS LIST........................................................................................................ 108
9.1 PACKING ............................................................................................................................................... 108
9.2 EXTERIOR (1) ........................................................................................................................................112
9.3 EXTERIOR (2) ........................................................................................................................................114
9.4 EXTERIOR (3) ........................................................................................................................................116
9.5 DVD MECHANISM MODULE (1)............................................................................................................118
9.6 CD MECHANISM MODULE (2) ............................................................................................................. 120
10. SCHEMATIC DIAGRAM............................................................................................................................. 122
10.1 TUNER AMP PCB (ANALOG PART)................................................................................................... 122
D 10.2 TUNER AMP PCB (SYSTEM PART) (GUIDE PAGE).......................................................................... 124
10.3 TUNER AMP PCB (POWER SUPPLY PART) ..................................................................................... 130
10.4 TUNER AMP PCB (I/O PART) (GUIDE PAGE).................................................................................... 132
10.5 TUNER AMP PCB (R2R IC PART) (GUIDE PAGE)............................................................................. 138
10.6 TUNER AMP PCB (DDR/FLASHROM FOR R2R PART) (GUIDE PAGE)........................................... 144
10.7 TUNER AMP PCB (VDEC/VENC PART)............................................................................................. 150
10.8 IF PCB (GUIDE PAGE) ........................................................................................................................ 152
10.9 DVD CORE UNIT (GUIDE PAGE) ....................................................................................................... 158
10.10 TUNER PCB ...................................................................................................................................... 164
10.11 MONITOR UNIT (SERVICE) (MONITOR POWER SUPPLY PART).................................................. 166
10.12 MONITOR UNIT (SERVICE) (I/O PART) ........................................................................................... 168
10.13 KEY UNIT (SERVICE) ....................................................................................................................... 170
E 10.14 CASE UNIT (SERVICE)..................................................................................................................... 172
10.15 SW UNIT (SERVICE)......................................................................................................................... 174
10.16 HDMI UNIT (GUIDE PAGE) ............................................................................................................... 176
10.17 PCB UNIT (SERVICE) ....................................................................................................................... 182
10.18 WAVEFORMS .................................................................................................................................... 184
11. PCB CONNECTION DIAGRAM.................................................................................................................. 186
11.1 TUNER AMP PCB................................................................................................................................ 186
11.2 IF PCB.................................................................................................................................................. 190
11.3 DVD CORE UNIT ................................................................................................................................. 192
11.4 TUNER PCB......................................................................................................................................... 194
11.5 MONITOR UNIT (SERVICE) ................................................................................................................ 196
11.6 KEY UNIT (SERVICE).......................................................................................................................... 200
F
11.7 CASE UNIT (SERVICE) ....................................................................................................................... 201
11.8 SW UNIT (SERVICE) ........................................................................................................................... 202
11.9 HDMI UNIT........................................................................................................................................... 204

AVH-X8500BHS/XNUC
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11.10 PCB UNIT (SERVICE) ........................................................................................................................206
12. ELECTRICAL PARTS LIST.........................................................................................................................208


A




B




C




D




E




F




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1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
A



1. 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. Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic
induction.
3. Please be sure to conduct line process to original status if you make assembling after repair.
4. Please be careful of not to imply static charge onto integrated circuits, etc, when you conduct repair work.
Especially, please use soldering iron with its tip grounded.
Also, please use a pair of tweezers with static charge protection capability if there is the possibility of contacting to
device terminals, and avoid the use of metal-made tweezers.
B 5. Before disassembling the unit, be sure to turn off the power. Unplugging and plugging the connectors during power-on
mode may damage the ICs inside the unit.
6. Please keep the distance of more than 13 cm from focus lens for safety when you check pickup and make adjustment,
and do not look straight at Laser Beam for more than 10 seconds.
7. Please power adjustment when you replaced mechanical area of DVD Mecha Module or DVD core unit.
8. The part listed below is difficult to replace as a discrete component part.
When the part listed in the table is defective, replace whole Assy.
TUNER AMP PCB IC1004 R8A77240D500BG1 BGA
IC1201/IC1202 H5PS5162GFR-S5C BGA
IC1401 AL2010 Heat pad
IC401 337S3959 QFN package and Heat pad
C
MONITOR UNIT(SERVICE) IC4001 BD81A04EFV-M Heat pad
IC4151 AK4187VN Heat pad
IC4300 R1290K103A Heat pad
HDMI UNIT IC10 MN864779KT BGA

9. On this mechanism, Pickup and Spindle Motor can not be replaced at the service site, because a special facility is
required for the adjustment after replacing them.
So, if Pickup or Spindle Motor is defective, replace the Mechanism Unit.
10. EJECT LOCK MODE for DVD mechanism
In order to change the EJECT LOCK status of the mechanism, please perform following procedure.
[VOL-] + [EJECT] -> ACC ON


D




E




F




AVH-X8500BHS/XNUC
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11. The following area, Heat sink, Top plate and Rear panel becomes hot areas. Be careful not to burn yourself. A


TUNER AMP PCB

IC1461 C121 C131 SIDE A SIDE B
IC832 IC831 IC1381 IC181
C804
IC261

IC471



IC1321
B




C1366 IC1371




C

IF PCB
SIDE A SIDE B
IC2101
IC2102




D




HDMI UNIT DVD MECHANISM MODULE
IC10 SIDE A

E
IC1251 IC1501




F




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1.2 NOTES ON SOLDERING


A

For environmental protection, lead-free solder is used on the printed circuit boards mounted in this unit.
Be sure to use lead-free solder and a soldering iron that can meet specifications for use with lead-free solders for repairs
accompanied by reworking of soldering.

Compared with conventional eutectic solders, lead-free solders have higher melting points, by approximately 40 C.
Therefore, for lead-free soldering, the tip temperature of a soldering iron must be set to around 373 C in general, although
the temperature depends on the heat capacity of the PC board on which reworking is required and the weight of the tip of
the soldering iron.

Compared with eutectic solders, lead-free solders have higher bond strengths but slower wetting times and higher melting
temperatures (hard to melt/easy to harden).
B

The following lead-free solders are available as service parts:
Parts numbers of lead-free solder:
GYP1006 1.0 in dia.
GYP1007 0.6 in dia.
GYP1008 0.3 in dia.




C




D




E




F




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2. SPECIFICATIONS
2.1 SPECIFICATIONS