Pioneer AVIC-X940BT User manual

ORDER NO.
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 2012
AVIC-X940BT/XNUC
CRT4887
MULTIMEDIA NAVIGATION RECEIVER
AVIC-X940BT /XNUC
NAVIGATION AV SYSTEM
AVIC-F940BT/XNEU5
AVIC-F840BT/XNEU5
AVIC-F940BT/XNUW5
AVIC-F940BT/XNAU
AVIC-F840BT/XNAU
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, Disas-
sembly
K-ZZZ FEB. 2012 Printed in Japan

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SAFETY INFORMATION
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:
CAUTION:
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHERTHAN THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
-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
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
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.
CAUTION—CLASS 1M INVISIBLE LASER
RADIATION WHEN OPEN, DO NOT VIEW
DIRECTLY WITH OPTICAL INSTRUMENTS.
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
harm.
Health & Safety Code Section 25249.6 - Proposition 65

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Additional Laser Caution
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.
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)
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.

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CONTENTS
SAFETY INFORMATION..................................................................................................................................... 2
1. SERVICE PRECAUTIONS............................................................................................................................... 5
1.1 SERVICE PRECAUTIONS ........................................................................................................................ 5
1.2 NOTES ON SOLDERING .......................................................................................................................... 6
2. SPECIFICATIONS............................................................................................................................................ 7
2.1 SPECIFICATIONS ..................................................................................................................................... 7
2.2 DISC/CONTENT FORMAT ...................................................................................................................... 16
3. BASIC ITEMS FOR SERVICE........................................................................................................................ 17
3.1 CHECK POINTS AFTER SERVICING..................................................................................................... 17
3.2 PCB LOCATIONS .................................................................................................................................... 18
3.3 JIGS LIST ................................................................................................................................................ 19
3.4 CLEANING............................................................................................................................................... 20
4. BLOCK DIAGRAM.......................................................................................................................................... 22
4.1 OVERALL CONNECTION DIAGRAM...................................................................................................... 22
4.2 BLOCK DIAGRAM ................................................................................................................................... 24
4.3 POWER SUPPLY SYSTEM FIGURE ...................................................................................................... 38
5. DIAGNOSIS.................................................................................................................................................... 48
5.1 OPERATIONAL FLOWCHART ................................................................................................................ 48
5.2 INSPECTION METHOD OF PICKUP UNIT............................................................................................. 49
5.3 DIAGNOSIS FLOWCHART ..................................................................................................................... 52
5.4 ERROR CODE LIST ................................................................................................................................ 72
5.5 CONNECTOR FUNCTION DESCRIPTION............................................................................................. 75
6. SERVICE MODE ............................................................................................................................................ 76
6.1 TEST MODE ............................................................................................................................................ 76
6.2 DVD TEST MODE ................................................................................................................................. 131
7. DISASSEMBLY ............................................................................................................................................ 137
8. EACH SETTING AND ADJUSTMENT ......................................................................................................... 142
8.1 DVD ADJUSTMENT .............................................................................................................................. 142
9. EXPLODED VIEWS AND PARTS LIST........................................................................................................ 148
9.1 PACKING ............................................................................................................................................... 148
9.2 EXTERIOR (1) ....................................................................................................................................... 152
9.3 EXTERIOR (2) ....................................................................................................................................... 154
9.4 EXTERIOR (3) ....................................................................................................................................... 156
9.5 DVD MECHANISM MODULE (1)........................................................................................................... 158
9.6 DVD MECHANISM MODULE (2)........................................................................................................... 160
10. SCHEMATIC DIAGRAM............................................................................................................................. 162
10.1 AV UNIT (PS/IF SECTION)(GUIDE PAGE) ......................................................................................... 162
10.2 AV UNIT (SYSTEM uCOM SECTION)(GUIDE PAGE) ........................................................................ 168
10.3 AV UNIT (AUDIO SECTION)(GUIDE PAGE)....................................................................................... 174
10.4 AV UNIT (TUNER/VICS SECTION)(GUIDE PAGE) ............................................................................ 180
10.5 AV UNIT (FLAP SENSOR IF)(GUIDE PAGE)...................................................................................... 186
10.6 KEYBOARD PCB................................................................................................................................. 192
10.7 DVD CORE UNIT (GUIDE PAGE) ....................................................................................................... 194
10.8 IF PCB (GUIDE PAGE)........................................................................................................................ 200
10.9 MICRO SD PCB................................................................................................................................... 206
10.10 CC MONITOR UNIT(SERVICE)(P/S,I/F SECTION)(GUIDE PAGE).................................................. 208
10.11 CC MONITOR UNIT(SERVICE)(CPU SECTION)(GUIDE PAGE) ..................................................... 214
10.12 CC MONITOR UNIT(SERVICE)(CPU AROUND SECTION)(GUIDE PAGE) .................................... 220
10.13 CC MONITOR UNIT(SERVICE)(DDR/FLASH_ROM/SRAM SECTION)(GUIDE PAGE) .................. 226
10.14 CC MONITOR UNIT(SERVICE)(NAND SECTION)........................................................................... 232
10.15 CC MONITOR UNIT(SERVICE)(VIDEO DEC/T-CON SECTION)(GUIDE PAGE)............................. 234
10.16 CC MONITOR UNIT(SERVICE)(BT/DISPLAY SECTION)(GUIDE PAGE) ........................................ 240
10.17 LCD-IF UNIT ...................................................................................................................................... 246
10.18 WAVEFORMS.................................................................................................................................... 248
11. PCB CONNECTION DIAGRAM.................................................................................................................. 250
11.1 AV UNIT ............................................................................................................................................... 250
11.2 KEYBOARD PCB ................................................................................................................................. 254
11.3 DVD CORE UNIT ................................................................................................................................. 256
11.4 IF PCB.................................................................................................................................................. 258
11.5 MICRO SD PCB ................................................................................................................................... 262
11.6 CC MONITOR UNIT(SERVICE)........................................................................................................... 264
11.7 LCD-IF UNIT ........................................................................................................................................ 268
12. ELECTRICAL PARTS LIST ........................................................................................................................ 270

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1. SERVICE PRECAUTIONS
1.1 SERVICE PRECAUTIONS
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.
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. To protect the pickup unit from electrostatic discharge during servicing, take an appropriate treatment (shorting-solder)
by referring to "the DISASSEMBLY".
7. 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.
8. Please power adjustment when you replaced mechanical area of DVD Mecha Module or DVD core unit.
9. Graphically-illustrated areas become hot. Be careful not to burn yourself.
Main IC
IC1501
Drive
IC
IC1251
10. 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.
11. 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.
IF PCB
LCD-IF UNIT
AV UNIT
CC MONITOR UNIT
IC151 GRF3I-0336S Heat pad
IC4204, IC4205 LTC3412AEFE Heat pad
IC5001 R1290K103A Heat pad
IC4001 TT4421 BGA
IC4654 WM1616LGEFL Terminal is bent inside
IC4501 PEM002C8 BGA
IC4901 TC90192XBG BGA
IC4406 CY62147EV30LL45BVA BGA
IC4403 CXX4262 BGA
IC3200 OZ527IRN Heat pad
IC4701 341S2162 Terminal is bent inside
IC5513 AK8859VN Terminal is bent inside
IC1281 LT3505EDD Heat pad
IC2141 LT1912EMSE Heat pad

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1.2 NOTES ON SOLDERING
< Procedure >
Top Menu -> AV Source -> Source OFF
Short push area "1" -> Short push area "2" -> Long push area "3" on above screen.
(In order to change the status, follow the same operation.)
The current status can be confirmed by "OFF" character color.
Eject Lock: ON
(Blue character)
Eject Lock: OFF
(White character)
113322
12. Notes on the temperature protection
The temperature protection is set considering the use temperature range of eNAND.
If the temperature reaches the detection temperature shown below, the operation stops (ASENS is disabled).
Detection temperature on low temperature side: -25°C, return temperature: -20°C
Detection temperature on high temperature side: 86.5°C, return temperature: 80°C
13. Control of FAN
There is the control of STOP, low rotation and high rotation.
The temperature (eNAND, DVD mechanism) are detected and controlled it.
14. Pay attention to the wiring of BT cable. (It affects the sensitivity of BT antenna)
15. EJECT LOCK MODE for DVD mechanism
In order to change the EJECT LOCK/UNLOCK status of the mechanism, please perform following procedure.
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).
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.

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2. SPECIFICATIONS
2.1 SPECIFICATIONS
General
Rated power source...............14.4 V DC
(allowable voltage range:
10.8 V to 15.1 V DC)
Grounding system.................. Negative type
Maximum current consumption
..........................................10.0 A
Dimensions (W × H × D):
AVIC-X940BT
Chassis.....................178 mm × 100 mm ×
165 mm
(7 in. × 3-7/8 in. × 6-1/2 in.)
Nose...........................170 mm × 96 mm × 12 mm
(6-3/4 in. × 3-3/4 in. ×
1/2 in.)
Weight:
AVIC-X940BT....................1.87 kg (4.1 lbs)
NAND flash memory .............4 GB
Navigation
GPS receiver:
System ...............................L1, C/Acode GPS
SPS (Standard Positioning
Service)
Reception system..........32-channel multi-channel
reception system
Reception frequency....1 575.42 MHz
Sensitivity ......................... –140 dBm (typ)
Position update frequency
......................................... Approx. once per second
GPS antenna:
Antenna ............................ Micro strip flat antenna/
right-handed helical polari-
zation
Antenna cable.................3.55 m (11 ft. 7 in.)
Dimensions (W × H × D)
......................................... 33 mm × 14.7 mm × 36 mm
(1-1/4 in. × 4/7 in. ×
1-3/8 in.)
Weight ...............................73.7 g (0.211 lbs)
Display
Screen size/aspect ratio:
AVIC-X940BT................... 6.1 inch wide/16:9
Effective display area:
AVIC-X940BT....................136.2 mm × 72 mm
Pixels ........................................... 384 000 (800 × 480)
Display method ....................... TFT Active matrix driving
Backlight ....................................LED
Color system............................. NTSC compatible
Tolerable temperature range:
Power on ........................... +14 °F to +140 °F
Power off ........................... –4 °F to +176 °F
Angle adjustment
AVIC-X940BT................... 0°
Audio
Maximum power output .......50 W × 4
50 W × 2 ch/4 Ω +70W×
1 ch/2 Ω (for subwoofer)
Continuous power output ... 22 W × 4 (50 Hz to 15 kHz,
5 %THD, 4 Ω LOAD, Both
Channels Driven)
Load impedance ..................... 4 Ω (4 Ω to 8 Ω [2 Ω for 1 ch]
allowable)
Preout output level (max):
AVIC-X940BT................... 2.2 V
Preout impedance:
AVIC-X940BT....................1 kΩ
Equalizer (8-Band Graphic Equalizer):
Frequency......................... 40 Hz/80 Hz/200 Hz/400 Hz/
1 kHz/2.5 kHz/8 kHz/10 kHz
Gain .....................................±12 dB
Loudness contour:
Low ......................................+3.5 dB (100 Hz), +3 dB
(10 kHz)
Mid ......................................+10 dB (100 Hz), +6.5 dB
(10 kHz)
High ....................................+11 dB (100 Hz), +11 dB
(10 kHz)
(volume:–30 dB)
HPF:
Frequency......................... 50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope ...................................–12 dB/oct
Subwoofer:
Frequency......................... 50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope ...................................–18 dB/oct
Gain .....................................–24/+6 dB
Phase ................................. Normal/Reverse
Bass boost:
Gain .................................... 0 dB to +12 dB
Backup current ........................ 3 mA or less
• AVIC-X940BT/XNUC

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DVD Drive
System ........................................ DVD-Video, CD, MP3, WMA,
AAC, DivX system
Usable discs .............................DVD-Video, DVD-R(DL),
DVD-RW, CD-ROM, CD-DA,
CD-R/RW
Region number ....................... 1
Signal format:
Sampling frequency.....44.1 kHz/48 kHz/96 kHz
Number of quantization bits
..........................................16 bit/20 bit/24 bit; linear
Frequency response.............. 5 Hz to 44 000 Hz (with DVD,
at sampling frequency
96 kHz)
Signal-to-noise ratio.............. 97 dB (1 kHz) (IHF-A net-
work)
(CD: 96 dB (1 kHz) (IHF-A
network))
Dynamic range ........................ 95 dB (1 kHz) (CD: 94 dB
(1 kHz))
Distortion ................................... 0.008 % (1 kHz)
Output level:
Video.................................. 1.0 Vp-p/75 Ω (±0.2 V)
Audio ................................. 1.0 V (1 kHz, 0 dB)
Number of channels ............. 2 (stereo)
MP3 decoding format ...........MPEG-1, 2 & 2.5 Audio Layer
3
WMA decoding format .........Ver. 7, 8 & 9
AAC decoding format............MPEG-4 AAC (only encoded
by iTunes):
.m4a
DivX decoding format............Home Theater Ver.3.11,
Ver.4.X, Ver.5.X, Ver.6.X :
.avi, .divx
USB
USB standard spec................USB 2.0 High Speed
Max current supply .................1 A
File system................................ FAT16, FAT32
USB class.................................. Mass storage class
Decoding format ..................... MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
SD (AVIC-X940BT)
microSD card, microSDHC card
Compatible physical format
......................................... Version 2.00
File system ....................... FAT16, FAT32
Decoding format ............ MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
Bluetooth
Version ........................................ Bluetooth 2.0+EDR
Output power ........................... +4 dBm Max.
(Power class 2)
FM tuner
AVIC-X940BT
Frequency range............ 87.9 MHz to 107.9 MHz
Usable sensitivity...........9 dBf (0.8 µV/75 Ω, mono,
S/N: 30 dB)
Signal-to-noise ratio ..... 72 dB (IHF-A network)
Distortion .......................... 0.3 % (at 65 dBf, 1 kHz,
stereo)
0.1 % (at 65 dBf, 1 kHz,
mono)
Frequency response..... 30 Hz to 15 000 Hz (±3 dB)
Stereo separation.......... 45 dB (at 65 dBf, 1 kHz)
AM tuner
AVIC-X940BT
Frequency range............ 530 kHz to 1 710 kHz
(10 kHz)
Usable sensitivity...........25 µV (S/N: 20 dB)
Signal-to-noise ratio ..... 62 dB (IHF-A network)
CEA2006 Specifications
Power output ............................ 14 W RMS × 4 Channels
(4 Ω and 1 % THD+N)
S/N ratio ..................................... 91 dBA (reference: 1 W into
4 Ω)
Note
Specifications and design are subject to possible
modifications without notice due to im-
provements.
Fastening the detachable faceplate
• This description is for AVIC-X940BT.
If you do not plan to remove the detachable fa-
ceplate, the detachable faceplate can be fas-
tened with the supplied screw.
Screw : BPZ20P040FTC (2 mm × 4 mm) (UC)

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• AVIC-F940BT/XNEU5, AVIC-F840BT/XNEU5
General
Rated power source...............14.4 V DC
(allowable voltage range:
12.0 V to 14.4 V DC)
Earthing system ...................... Negative type
Maximum current consumption
......................................... 10.0 A
Dimensions (W × H × D):
AVIC-F940BT
DIN
Chassis.....................188 mm × 118 mm ×
157 mm
Nose...........................170 mm × 96 mm × 20 mm
D
Chassis.....................178 mm × 100 mm ×
165 mm
Nose...........................170 mm × 96 mm × 12 mm
AVIC-F840BT
DIN
Chassis.....................188 mm × 118 mm ×
157 mm
Nose...........................170 mm × 96 mm × 20 mm
D
Chassis.....................178 mm × 100 mm ×
165 mm
Nose...........................170 mm × 96 mm × 12 mm
Weight:
AVIC-F940BT................... 2.4 kg
AVIC-F840BT................... 2.4 kg
NAND flash memory ............ 4 GB
Navigation
GPS receiver:
System ............................... L1, C/Acode GPS
SPS (Standard Positioning
Service)
Reception system.......... 32-channel multi-channel
reception system
Reception frequency.... 1 575.42 MHz
Sensitivity ......................... –140 dBm (typ)
Position update frequency
......................................... Approx. once per second
GPS aerial:
Aerial .................................. Micro strip flat aerial/right-
handed helical polarisation
Aerial cable ..................... 3.55 m
Dimensions (W × H × D)
......................................... 33 mm × 14.7 mm × 36 mm
Weight ............................... 73.7 g
Display
Screen size/aspect ratio:
AVIC-F940BT................... 6.1 inch wide/16:9
AVIC-F840BT................... 6.1 inch wide/16:9
Effective display area:
AVIC-F940BT....................136.2 mm × 72 mm
AVIC-F840BT....................136.2 mm × 72 mm
Pixels ........................................... 384 000 (800 × 480)
Display method ....................... TFT Active matrix driving
Backlight ................................... LED
Colour system .......................... PAL/NTSC compatible
Tolerable temperature range:
Power on ........................... –10 °C to +60 °C
Power off ........................... –20 °C to +80 °C
Angle adjustment
AVIC-F940BT................... 0°
AVIC-F840BT................... 0°
Audio
Maximum power output ....... 50 W × 4
50 W × 2 ch/4 Ω +70W×
1 ch/2 Ω (for subwoofer)
Continuous power output ... 22 W × 4 (50 Hz to 15 kHz,
5 %THD, 4 ΩLOAD, Both
Channels Driven)
Load impedance ..................... 4 Ω (4 Ω to 8 Ω [2 Ω for 1 ch]
allowable)
Preout output level (max):
AVIC-F940BT................... 2.2 V
AVIC-F840BT................... 2.2 V
Preout impedance:
AVIC-F940BT....................1 kΩ
AVIC-F840BT....................1 kΩ
Equaliser (8-Band Graphic Equaliser):
Frequency......................... 40 Hz/80 Hz/200 Hz/400 Hz/
1 kHz/2.5 kHz/8 kHz/10 kHz
Gain .....................................±12 dB
Loudness contour:
Low ......................................+3.5 dB (100 Hz), +3 dB
(10 kHz)
Backup current ....................... 3 mA or less

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Mid ......................................+10 dB (100 Hz), +6.5 dB
(10 kHz)
High ....................................+11 dB (100 Hz), +11 dB
(10 kHz)
(volume:–30 dB)
HPF:
Frequency.........................50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope.................................. –12 dB/oct
Subwoofer:
Frequency.........................50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope.................................. –18 dB/oct
Gain .................................... –24/+6 dB
Phase ................................ Normal/Reverse
Bass boost:
Gain .................................... 0 dB to +12 dB
DVD Drive
System ........................................ DVD-Video, CD, MP3, WMA,
AAC, DivX system
Usable discs ............................ DVD-Video, DVD-R(DL),
DVD-RW, CD-ROM, CD-DA,
CD-R/RW
Region number ....................... 2
Signal format:
Sampling frequency.....44.1 kHz/48 kHz/96 kHz
Number of quantisation bits
..........................................16 bit/20 bit/24 bit; linear
Frequency response...............5 Hz to 44 000 Hz (with DVD,
at sampling frequency
96 kHz)
Signal-to-noise ratio...............97 dB (1 kHz) (IEC-A net-
work)
(CD: 96 dB (1 kHz) (IEC-A
network))
Dynamic range ........................ 95 dB (1 kHz) (CD: 94 dB
(1 kHz))
Distortion ................................... 0.008 % (1 kHz)
Output level:
Video...................................1.0 Vp-p/75 Ω (±0.2 V)
Audio ..................................1.0 V (1 kHz, 0 dB)
Number of channels ............. 2 (stereo)
MP3 decoding format .......... MPEG-1, 2 & 2.5 Audio Layer
3
WMA decoding format .........Ver. 7, 8 & 9
AAC decoding format............MPEG-4 AAC (only encoded
by iTunes):
.m4a
DivX decoding format............Home Theater Ver.3.11,
Ver.4.X, Ver.5.X, Ver.6.X :
.avi, .divx
USB
USB standard spec................USB 2.0 High Speed
Max current supply .................1 A
File system.................................FAT16, FAT32
USB class .................................. Mass storage class
Decoding format ..................... MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
SD (AVIC-F940BT and AVIC-F840BT)
microSD card, microSDHC card
Compatible physical format
..........................................Version 2.00
File system....................... FAT16, FAT32
Decoding format ............ MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
Bluetooth
Version ........................................ Bluetooth 2.0+EDR
Output power ........................... +4 dBm Max.
(Power class 2)
FM tuner
Frequency range..................... 87.5 MHz to 108.0 MHz
Usable sensitivity.................... 9 dBf (0.8 µV/75 Ω, mono,
S/N: 30 dB)
Signal-to-noise ratio ...............72 dB (IEC-A network)
Distortion .................................... 0.3 % (at 65 dBf, 1 kHz,
stereo)
0.1 % (at 65 dBf, 1 kHz,
mono)
Frequency response.............. 30 Hz to 15 000 Hz (±3 dB)
Stereo separation................... 45 dB (at 65 dBf, 1 kHz)
MW tuner
Frequency range..................... 531 kHz to 1 602 kHz (9 kHz)
Usable sensitivity.................... 25 µV (S/N: 20 dB)
Signal-to-noise ratio ...............62 dB (IEC-A network)
LW tuner
Frequency range......................153 kHz to 281 kHz
Usable sensitivity.................... 28 µV (S/N: 20 dB)
Signal-to-noise ratio ...............62 dB (IEC-A network)
RDS-TMC tuner
Rated power source...............13.8 V DC
(allowable voltage range:
10.0 V to 14.5 V DC)
Earthing system ...................... Negative type
Maximum current consumption
..........................................60 mA
Dimensions (W × H × D) ... 68 mm × 49 mm × 19 mm
Weight .........................................180 g
Note
Specifications and design are subject to possible
modifications without notice due to im-
provements.

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• AVIC-F940BT/XNUW5
General
Rated power source...............14.4 V DC
(allowable voltage range:
12.0 V to 14.4 V DC)
Earthing system ...................... Negative type
Maximum current consumption
......................................... 10.0 A
Dimensions (W × H × D):
DIN
Chassis..............................188 mm × 118 mm ×
157 mm
Nose....................................170 mm × 96 mm × 20 mm
D
Chassis..............................178 mm × 100 mm ×
165 mm
Nose....................................170 mm × 96 mm × 12 mm
Weight ........................................ 2.4 kg
NAND flash memory .............4 GB
Navigation
GPS receiver:
System ...............................L1, C/Acode GPS
SPS (Standard Positioning
Service)
Reception system..........32-channel multi-channel
reception system
Reception frequency....1 575.42 MHz
Sensitivity ......................... –140 dBm (typ)
Position update frequency
......................................... Approx. once per second
GPS aerial:
Aerial ..................................Micro strip flat aerial/right-
handed helical polarisation
Aerial cable ..................... 3.55 m
Dimensions (W × H × D)
......................................... 33 mm × 14.7 mm × 36 mm
Weight ...............................73.7 g
Display
Screen size/aspect ratio.......6.1 inch wide/16:9
(effective display area:
136.2 mm × 72 mm)
Pixels ........................................... 384 000 (800 × 480)
Display method ....................... TFT Active matrix driving
Backlight ................................... LED
Colour system .......................... PAL/NTSC/SECAM compati-
ble
Tolerable temperature range:
Power on.......................... –10 °C to +60 °C
Power off.......................... –20 °C to +80 °C
Audio
Maximum power output .......50 W × 4
50 W × 2 ch/4 Ω +70W×
1 ch/2 Ω (for subwoofer)
Continuous power output ... 22 W × 4 (50 Hz to 15 kHz,
5 %THD, 4 Ω LOAD, Both
Channels Driven)
Load impedance ..................... 4 Ω (4 Ω to 8 Ω [2 Ω for 1 ch]
allowable)
Preout output level (max)....2.2 V
Preout impedance ..................1 kΩ
Equaliser (8-Band Graphic Equaliser):
Frequency......................... 40 Hz/80 Hz/200 Hz/400 Hz/
1 kHz/2.5 kHz/8 kHz/10 kHz
Gain .................................... ±12 dB
Loudness contour:
Low ..................................... +3.5 dB (100 Hz), +3 dB
(10 kHz)
Mid ..................................... +10 dB (100 Hz), +6.5 dB
(10 kHz)
High ................................... +11 dB (100 Hz), +11 dB
(10 kHz)
(volume:–30 dB)
HPF:
Frequency......................... 50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope .................................. –12 dB/oct
Subwoofer:
Frequency......................... 50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope .................................. –18 dB/oct
Gain .................................... –24/+6 dB
Phase ................................. Normal/Reverse
Bass boost:
Gain .....................................0 dB to +12 dB
DVD Drive
System ........................................ DVD-Video, CD, MP3, WMA,
AAC, DivX system
Usable discs ............................. DVD-Video, DVD-R(DL),
DVD-RW, CD-ROM, CD-DA,
CD-R/RW
Region number ....................... 5
Signal format:
Sampling frequency.....44.1 kHz/48 kHz/96 kHz
Number of quantisation bits
......................................... 16 bit/20 bit/24 bit; linear
Frequency response.............. 5 Hz to 44 000 Hz (with DVD,
at sampling frequency
96 kHz)
Signal-to-noise ratio.............. 97 dB (1 kHz) (IEC-A net-
work)
(CD: 96 dB (1 kHz) (IEC-A
network))
Backup current ....................... 3 mA or less

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Dynamic range ........................ 95 dB (1 kHz) (CD: 94 dB
(1 kHz))
Distortion ................................... 0.008 % (1 kHz)
Output level:
Video...................................1.0 Vp-p/75 Ω (±0.2 V)
Audio ..................................1.0 V (1 kHz, 0 dB)
Number of channels ............. 2 (stereo)
MP3 decoding format ........... MPEG-1, 2 & 2.5 Audio Layer
3
WMA decoding format ......... Ver. 7, 8 & 9
AAC decoding format............MPEG-4 AAC (only encoded
by iTunes):
.m4a
DivX decoding format............Home Theater Ver.3.11,
Ver.4.X, Ver.5.X, Ver.6.X :
.avi, .divx
USB
USB standard spec................USB 2.0 High Speed
Max current supply .................1 A
File system................................. FAT16, FAT32
USB class.................................. Mass storage class
Decoding format ..................... MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
SD
microSD card, microSDHC card
Compatible physical format
................................................... Version 2.00
File system................................. FAT16, FAT32
Decoding format ..................... MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
Bluetooth
Version ........................................ Bluetooth 2.0+EDR
Output power ........................... +4 dBm Max.
(Power class 2)
FM tuner
Frequency range..................... 87.5 MHz to 108.0 MHz
Usable sensitivity.................... 9 dBf (0.8 µV/75 Ω, mono,
S/N: 30 dB)
Signal-to-noise ratio...............72 dB (IEC-A network)
Distortion ................................... 0.3 % (at 65 dBf, 1 kHz,
stereo)
0.1 % (at 65 dBf, 1 kHz,
mono)
Frequency response.............. 30 Hz to 15 000 Hz (±3 dB)
Stereo separation................... 45 dB (at 65 dBf, 1 kHz)
MW tuner
Frequency range..................... 531 kHz to 1 602 kHz (9 kHz)
Usable sensitivity.................... 25 µV (S/N: 20 dB)
Signal-to-noise ratio...............62 dB (IEC-A network)
LW tuner
Frequency range......................153 kHz to 281 kHz
Usable sensitivity.................... 28 µV (S/N: 20 dB)
Signal-to-noise ratio...............62 dB (IEC-A network)
Note
Specifications and design are subject to possible
modifications without notice due to im-
provements.

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• AVIC-F940BT/XNAU, AVIC-F840BT/XNAU
General
Rated power source...............14.4 V DC
(allowable voltage range:
10.8 V to 15.1 V DC)
Earthing system ...................... Negative type
Maximum current consumption
..........................................10.0 A
Dimensions (W × H × D):
AVIC-F940BT
D
Chassis.....................178 mm × 100 mm ×
165 mm
Nose...........................170 mm × 96 mm × 12 mm
AVIC-F840BT
D
Chassis.....................178 mm × 100 mm ×
165 mm
Nose...........................170 mm × 96 mm × 12 mm
Weight:
AVIC-F940BT....................1.85 kg
AVIC-F840BT................... 1.85 kg
NAND flash memory ............ 4 GB
Navigation
GPS receiver:
System .............................. L1, C/Acode GPS
SPS (Standard Positioning
Service)
Reception system.......... 32-channel multi-channel
reception system
Reception frequency.... 1 575.42 MHz
Sensitivity ......................... –140 dBm (typ)
Position update frequency
..........................................Approx. once per second
GPS aerial:
Aerial ..................................Micro strip flat aerial/right-
handed helical polarisation
Aerial cable ..................... 3.55 m
Dimensions (W × H × D)
......................................... 33 mm × 14.7 mm × 36 mm
Weight ............................... 73. 7 g
Display
Screen size/aspect ratio:
AVIC-F940BT................... 6.1 inch wide/16:9
AVIC-F840BT................... 6.1 inch wide/16:9
Effective display area:
AVIC-F940BT....................136.2 mm × 72 mm
AVIC-F840BT....................136.2 mm × 72 mm
Pixels ........................................... 384 000 (800 × 480)
Display method ....................... TFT Active matrix driving
Backlight ....................................LED
Colour system .......................... PAL/NTSC compatible
Tolerable temperature range:
Power on .......................... –10 °C to +60 °C
Power off .......................... –20 °C to +80 °C
Angle adjustment
AVIC-F940BT................... 0°
AVIC-F840BT................... 0°
Audio
Maximum power output ....... 50 W × 4
50 W × 2 ch/4 Ω +70W×
1 ch/2 Ω (for subwoofer)
Continuous power output ... 22 W × 4 (50 Hz to 15 kHz,
5 %THD, 4 Ω LOAD, Both
Channels Driven)
Load impedance ..................... 4 Ω (4 Ω to 8 Ω [2 Ω for 1 ch]
allowable)
Preout output level (max):
AVIC-F940BT................... 2.2 V
AVIC-F840BT................... 2.2 V
Preout impedance:
AVIC-F940BT....................1 kΩ
AVIC-F840BT....................1 kΩ
Equaliser (8-Band Graphic Equaliser):
Frequency......................... 40 Hz/80 Hz/200 Hz/400 Hz/
1 kHz/2.5 kHz/8 kHz/10 kHz
Gain .................................... ±12 dB
Loudness contour:
Low ..................................... +3.5 dB (100 Hz), +3 dB
(10 kHz)
Mid ..................................... +10 dB (100 Hz), +6.5 dB
(10 kHz)
High ................................... +11 dB (100 Hz), +11 dB
(10 kHz)
(volume:–30 dB)
HPF:
Frequency......................... 50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope .................................. –12 dB/oct
Subwoofer:
Frequency......................... 50 Hz/63 Hz/80 Hz/100 Hz/
125 Hz
Slope .................................. –18 dB/oct
Backup current ....................... 3 mA or less

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Gain .................................... –24/+6 dB
Phase .................................Normal/Reverse
Bass boost:
Gain .................................... 0 dB to +12 dB
DVD Drive
System ........................................ DVD-Video, CD, MP3, WMA,
AAC, DivX system
Usable discs .............................DVD-Video, DVD-R(DL),
DVD-RW, CD-ROM, CD-DA,
CD-R/RW
Region number ....................... 4
Signal format:
Sampling frequency.....44.1 kHz/48 kHz/96 kHz
Number of quantisation bits
..........................................16 bit/20 bit/24 bit; linear
Frequency response.............. 5 Hz to 44 000 Hz (with DVD,
at sampling frequency
96 kHz)
Signal-to-noise ratio.............. 97 dB (1 kHz) (IEC-A net-
work)
(CD: 96 dB (1 kHz) (IEC-A
network))
Dynamic range ........................ 95 dB (1 kHz) (CD: 94 dB
(1 kHz))
Distortion ................................... 0.008 % (1 kHz)
Output level:
Video.................................. 1.0 Vp-p/75 Ω (±0.2 V)
Audio ................................. 1.0 V (1 kHz, 0 dB)
Number of channels ............. 2 (stereo)
MP3 decoding format ...........MPEG-1, 2 & 2.5 Audio Layer
3
WMA decoding format .........Ver. 7, 8 & 9
AAC decoding format............MPEG-4 AAC (only encoded
by iTunes):
.m4a
DivX decoding format............Home Theater Ver.3.11,
Ver.4.X, Ver.5.X, Ver.6.X :
.avi, .divx
USB
USB standard spec................USB 2.0 High Speed
Max current supply .................1 A
File system.................................FAT16, FAT32
USB class...................................Mass storage class
Decoding format ..................... MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
SD (AVIC-F940BT and AVIC-F840BT)
microSD card, microSDHC card
Compatible physical format
..........................................Version 2.00
File system....................... FAT16, FAT32
Decoding format ............ MP3/WMA/AAC/WAVE/
H.264/MPEG4/WMV
Bluetooth
Version ........................................ Bluetooth 2.0+EDR
Output power ........................... +4 dBm Max.
(Power class 2)
FM tuner
Frequency range..................... 87.5 MHz to 108.0 MHz
Usable sensitivity.................... 9 dBf (0.8 µV/75 Ω, mono,
S/N: 30 dB)
Signal-to-noise ratio ...............72 dB (IEC-A network)
Distortion ................................... 0.3 % (at 65 dBf, 1 kHz,
stereo)
0.1 % (at 65 dBf, 1 kHz,
mono)
Frequency response.............. 30 Hz to 15 000 Hz (±3 dB)
Stereo separation................... 45 dB (at 65 dBf, 1 kHz)
AM tuner
Frequency range..................... 531 kHz to 1 602 kHz (9 kHz)
Usable sensitivity.................... 25 µV (S/N: 20 dB)
Signal-to-noise ratio .............. 62 dB (IEC-A network)
Note
Specifications and design are subject to possible
modifications without notice due to im-
provements.

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Parts supplied
AVIC-X940BT/XNUC
AVIC-X940BT/XNUW5
The navigation unit Power cord
CDP1479
GPS antenna
CXE3204
CXE3204
CXE3204 CXE3204
USB and mini-jack
CDP1425
CDP1425
CDP1425
CDP1425
connector
RCA connector
CDP1375
CDP1375
Microphone
CPM1083
CPM1083
CPM1083
CPM1083
AVIC-F940BT/XNEU5, AVIC-F840BT/XNEU5
(AVIC-F940BT/XNEU5) (AVIC-F840BT/XNEU5)
(AVIC-F940BT/XNEU5) (AVIC-F840BT/XNEU5)
The navigation unit
CDP1306
CDP1306
RDS-TMC tuner
CXE2176 USB and mini-jack
connector
RCA connector
CDP1376
CDP1376
CDP1460
CDP1460
GPS aerial
Microphone
The navigation unit Power cord
USB and mini-jack
connector
RCA connector
GPS aerial Microphone
AVIC-F940BT/XNAU, AVIC-F840BT/XNAU
(AVIC-F940BT/XNAU)
The navigation unit Power cord
USB and mini-jack
connector
RCA connector
GPS aerial Microphone
(AVIC-F840BT/XNAU)
RCA connector
The navigation unit
RCAconnector

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2.2 DISC/CONTENT FORMAT
The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc.
and any use of such marks by Pioneer Corporation is under license.
Other trademarks and trade names are those of their respective owners.

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3. BASIC ITEMS FOR SERVICE
3.1 CHECK POINTS AFTER SERVICING
To keep the product quality after servicing, please confirm following check points.
No. Procedures Item to be confirmed
1 Confirm whether the customer complain has
been solved.
If the customer complain occurs with the
specific media, use it for the operation
check.
The customer complain must not be
reappeared.
Display, video, audio and operations must
be normal.
2 DVD Measure playback error rates at the
innermost and outermost tracks by using the
test mode with the following disc.
DVD test disc (GGV1025)
Deterioration of mecha-drive can be
checked.
The error rate must be less than the
threshold value.
(Refer to the chapter of DIAGNOSIS for the
threshold value.)
3 DVD Play back a DVD.
(Menu operation; Title/chapter search)
Display, video, audio and operations must
be normal.
4 CD Play back a CD.
(Track search)
Display, audio and operations must be
normal.
5 FM/AM tuner Check FM/AM tuner action.
(Seek, Preset)
Switch band to check both FM and AM.
Display, audio and operations must be
normal.
6 GPS positioning Connect GPS antenna to the product, and
check whether the current location is correct.
Current location must be correct.
Display and operations must be normal.
7 Gyro action On "3D Calibration Status", check whether
the gyro sensor works well by moving the
front face of the product from left to right and
up and down.
Gyro-sensing, display and operations must
be normal.
8 Map display
Touch-panel
operation
Remote-control
operation
Check functions of map scale change and
map scroll.
Display and operations must be normal.
9 Delete data added during the operating
check.
Check whether no media (CD etc.) is inside
the product.
Make sure to delete data added during the
operating check.
The media used for the operating check
must be ejected.
10 Appearance check No scratches or dirt on its appearance after
receiving it for service.
See the table below for the items to be checked regarding video and audio:
Item to be checked regarding video Item to be checked regarding audio
Block-noise Distortion
Horizontal noise Noise
Dot noise Volume too low
Disturbed image (video jumpiness) Volume too high
Too dark Volume fluctuating
Too bright Sound interrupted
Mottled color

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3.2 PCB LOCATIONS
AV Unit
A
CC Monitor Unit
(Service)
F
LCD-IF Unit
G
CDVD Core Unit
DIF PCB
Keyboard PCB
B
Micro SD PCB
E
A:AVIC-X940BT/XNUC
B:AVIC-F940BT/XNEU5
C:AVIC-F840BT/XNEU5
D:AVIC-F940BT/XNUW5
E:AVIC-F940BT/XNAU
F:AVIC-F840BT/XNAU
Unit Number : CWN6406(A)
: CWN6407(B)
: CWN6410(C)
: CWN6408(D)
: CWN6409(E)
: CWN6411(F)
Unit Name : AV Unit
IF Unit
Consists of
Keyboard PCB
IF PCB
Micro SD PCB
Unit Number : CWN6412(A)
: CWN6413(B)
: CWN6416(C)
: CWN6414(D)
: CWN6415(E)
: CWN6417(F)
Unit Name : IF Unit
Unit Number : YWX5033
Unit Name : DVD Core Unit
Unit Number : CXX4255(A)
: CXX4256(B)
: CXX4259(C)
: CXX4257(D)
: CXX4258(E)
: CXX4260(F)
Unit Name : CC Monitor Unit(Service)
Unit Number : CWN6419
Unit Name : LCD-IF Unit

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3.3 JIGS LIST
GGF1158
IF PCB
AV Unit
GGD1250
GGF1656
GGD1250
CC Monitor Unit (Service)
GGD1633
Use the cable used in this product.
GGD1222
DVD Mechanism Module(LS2)
Jigs List
RemarksJig No.Name
DISC GGV1025 Check points after servicing,
Inspection method of Pickup Unit
DISC TCD-782 Inspection method of Pickup Unit
20P FFC Extension Cable GGF1158 AV UNIT <---> IF PCB
50P FFC Extension Cable GGD1250 AV UNIT <---> IF PCB
30P FFC Extension Cable GGD1222 AV UNIT <---> DVD CORE UNIT
50P Extension Board GGF1656 IF PCB <---> CC MONITOR UNIT
50P FFC Extension Cable GGD1250 IF PCB <---> CC MONITOR UNIT
80P FPC Extension Cable GGD1633 AV UNIT <---> CC MONITOR UNIT
Test Mode File GGS1109 Test Mode
Grease List
DVD Mechanism ModuleGEM1024Grease
DVD Mechanism ModuleGEM1038Grease
DVD Mechanism ModuleGEM1045Grease
RemarksJig No.Name

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3.4 CLEANING
Before shipping out the product, be sure to clean the following portions by using the prescribed cleaning tools:
Portions to be cleaned Cleaning tools
DVD pickup lenses Cleaning liquid : GEM1004
Cleaning paper : GED-008
Portions to be cleaned Cleaning tools
Fans Cleaning paper : GED-008