Pioneer AVH-P7800DVD/UC User manual

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 2006
AVH-P7800DVD/UC
CRT3681
MULTI-CD CONTROL DSP HIGH POWER DVD-A/DVD-V/VCD/CD/
MP3/WMA/AAC/DivX JPEG PLAYERWITH FM/AMTUNER
AVH-P7800DVD
/UC
This service manual should be used together with the following manual(s):
"DTS" and "DTS Digital Surround" are registered trademarks of DigitalTheater Systems,Inc.
Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
Model No. Order No. Mech.Module Remarks
CX-3183 CRT3655 MS4 DVD Mech. Module:Circuit Descriptions, Mech. Descriptions, Disassembly
For details, refer to "Important Check Points for Good Servicing".
K-ZZU. MAY 2006 Printed in Japan

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SAFETY INFORMATION
Safety Precautions for those who Service this Unit.
• Follow the adjustment steps in the service manual when servicing this unit. When check -
ing 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.
-Service Precautions
• 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.
• Be careful in handling ICs. Some ICs such as MOS type are so fragile that they can be damaged by electrostatic
induction.
-DVD section precaution
1. 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.
2. To protect the pickup unit from electrostatic discharge
during servicing, take an appropriate treatment
(shorting-solder) by referring to "the DISASSEMBLY" .
3. After replacing the pickup unit, be sure to skew
adjustment.
4. During disassembly, be sure to turn the power off since
an internal IC might be destroyed when a connector
is plugged or unplugged.
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 contains lead in solder and certain electrical parts contain chemicals which are known to the state of
California to cause cancer, birth defects or other reproductive harm.
Health & Safety Code Section 25249.6 - Proposition 65

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H/U independent operation
Operation becomes possible even if there is no H/A, when it does in this way.
Since TUN is not connected, TUN sauce does not operate.
Please operate sauce by DVD, AUX, etc.
Short here

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Note) Button unit (CXC6641) is a non-reusable part. When repairing a PCB, repair without removing the button unit.
In case the button unit must be removed, do not reuse the removed button unit and use a new one.
For this product, the button unit, CXC6641, is designated as a non-reusable part because the hook part will come
off once the part is removed from the device.
When repairing the grill, repair without removing CXC6641.
A special technique will be required to install the PCB into the grill with CXC6641 mounted.
As shown in the picture below, assemble CXC9683 with the PCB beforehand. And insert the PCB into the grill by
holding CAC9683 and CXC6641 so that they will not drop off.
CXC6641
Insert into the grill while holding the parts.
Assemble CAC9683 beforehand as shown in the picture.
is a trademark of DVD Format/Logo Licensing Corporation.

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[Important Check Points for Good Servicing]
In this manual, procedures that must be performed during repairs are marked with the below symbol.
Please be sure to confirm and follow these procedures.
1. Product safety
Please conform to product regulations (such as safety and radiation regulations), and maintain a safe servicing environment by
following the safety instructions described in this manual.
1Use specified parts for repair.
Use genuine parts. Be sure to use important parts for safety.
2Do not perform modifications without proper instructions.
Please follow the specified safety methods when modification(addition/change of parts) is required due to interferences such as
radio/TV interference and foreign noise.
3Make sure the soldering of repaired locations is properly performed.
When you solder while repairing, please be sure that there are no cold solder and other debris.
Soldering should be finished with the proper quantity. (Refer to the example)
4Make sure the screws are tightly fastened.
Please be sure that all screws are fastened, and that there are no loose screws.
5Make sure each connectors are correctly inserted.
Please be sure that all connectors are inserted, and that there are no imperfect insertion.
6Make sure the wiring cables are set to their original state.
Please replace the wiring and cables to the original state after repairs.
In addition, be sure that there are no pinched wires, etc.
7Make sure screws and soldering scraps do not remain inside the product.
Please check that neither solder debris nor screws remain inside the product.
8There should be no semi-broken wires, scratches, melting, etc. on the coating of the power cord.
Damaged power cords may lead to fire accidents, so please be sure that there are no damages.
If you find a damaged power cord, please exchange it with a suitable one.
9There should be no spark traces or similar marks on the power plug.
When spark traces or similar marks are found on the power supply plug, please check the connection and advise on secure
connections and suitable usage. Please exchange the power cord if necessary.
0Safe environment should be secured during servicing.
When you perform repairs, please pay attention to static electricity, furniture, household articles, etc. in order to prevent injuries.
Please pay attention to your surroundings and repair safely.
2. Adjustments
To keep the original performance of the products, optimum adjustments and confirmation of characteristics within specification.
Adjustments should be performed in accordance with the procedures/instructions described in this manual.
4. Cleaning
For parts that require cleaning, such as optical pickups, tape deck heads, lenses and mirrors used in projection monitors, proper
cleaning should be performed to restore their performances.
3. Lubricants, Glues, and Replacement parts
Use grease and adhesives that are equal to the specified substance.
Make sure the proper amount is applied.
5. Shipping mode and Shipping screws
To protect products from damages or failures during transit, the shipping mode should be set or the shipping screws should be
installed before shipment. Please be sure to follow this method especially if it is specified in this manual.

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CONTENTS
SAFETY INFORMATION.....................................................................................................................................2
1. SPECIFICATIONS ............................................................................................................................................7
2. EXPLODED VIEWS AND PARTS LIST............................................................................................................9
2.1 PACKING .................................................................................................................................................10
2.2 EXTERIOR(1) .......................................................................................................................................... 12
2.3 EXTERIOR(2) .......................................................................................................................................... 14
2.4 EXTERIOR(3) .......................................................................................................................................... 18
2.5 TUNER SELECTOR ASSY......................................................................................................................22
2.6 ACCESSORY AND POWER SUPPLY UNIT............................................................................................24
2.7 DVD MECHANISM MODULE .................................................................................................................. 26
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM..........................................................................................28
3.1 OVERALL CONNECTION DIAGRAM......................................................................................................28
3.2 BLOCK DIAGRAM...................................................................................................................................30
3.3 MOTHER UNIT(SYSTEM Part)(GUIDE PAGE).......................................................................................46
3.4 MOTHER UNIT(DSP Part)(GUIDE PAGE)...............................................................................................52
3.5 KEYBOARD UNIT(GUIDE PAGE)............................................................................................................58
3.6 DVD CORE UNIT(1/2)(GUIDE PAGE)..................................................................................................... 64
3.7 DVD CORE UNIT(2/2).............................................................................................................................. 70
3.8 COMPOUND UNIT(A) , COMPOUND UNIT(B).......................................................................................74
3.9 MONITOR KEYBOARD UNIT.................................................................................................................. 75
3.10 MONITOR UNIT(MONITOR Part)(GUIDE PAGE).................................................................................. 76
3.11 MONITOR UNIT(GDC PART)(GUIDE PAGE)........................................................................................82
3.12 POWER SUPPLY UNIT(GUIDE PAGE).................................................................................................88
3.13 TUNER SELECTOR UNIT(SELECTOR Part)(GUIDE PAGE)................................................................ 94
3.14 TUNER SELECTOR UNIT(TUNER Part)(GUIDE PAGE)..................................................................... 100
3.15 AMP UNIT(GUIDE PAGE).................................................................................................................... 106
3.16 MAIN PCB UNIT, SWITCH PCB UNIT AND VOLUME PCB UNIT ......................................................112
4. PCB CONNECTION DIAGRAM ...................................................................................................................114
4.1 DVD MOTHER UNIT.............................................................................................................................. 114
4.2 KEYBOARD UNIT.................................................................................................................................. 118
4.3 DVD CORE UNIT...................................................................................................................................120
4.4 COMPOUND UNIT(A),COMPOUND(B) ................................................................................................124
4.5 MONITOR KEYBOARD UNIT................................................................................................................ 125
4.6 MONITOR UNIT..................................................................................................................................... 126
4.7 POWER SUPPLY UNIT..........................................................................................................................130
4.8 TUNER SELECTOR UNIT .....................................................................................................................132
4.9 AMP UNIT..............................................................................................................................................136
4.10 MAIN PCB UNIT, SWITCH PCB UNIT AND VOLUME PCB UNIT ......................................................140
5. ELECTRICAL PARTS LIST ..........................................................................................................................141
6. ADJUSTMENT ............................................................................................................................................. 176
6.1 JIG CONNECTIONS..............................................................................................................................176
6.2 DVD ADJUSTMENT...............................................................................................................................177
6.3 VIDEO LEVEL ADJUSTMENT............................................................................................................... 206
6.4 MONITOR ADJUSTMENT.....................................................................................................................210
6.5 DD CONVERTER ADJUSTMENT.........................................................................................................214
6.6 SYSTEM MICROCOMPUTERTEST PROGRAM .................................................................................215
6.7 MONITOR TEST MODE ........................................................................................................................216
6.8 TOUCH PANEL TEST MODE ................................................................................................................ 222
7. GENERAL INFORMATION........................................................................................................................... 231
7.1 DIAGNOSIS...........................................................................................................................................231
7.1.1 DISASSEMBLY ...................................................................................................................................231
7.1.2 PCB LOCATIONS ............................................................................................................................... 239
7.1.3 CONNECTOR FUNCTION DESCRIPTION........................................................................................ 240
7.2 PARTS.................................................................................................................................................... 241
7.2.1 IC ........................................................................................................................................................241
7.2.2 DISPLAY.............................................................................................................................................270
7.3 OPERATIONAL FLOW CHART .............................................................................................................271
8. OPERATIONS .............................................................................................................................................. 272

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1. SPECIFICATIONS
Backup current ............3.5 mA or less
Backup current ............3.5 mA or less

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2. EXPLODEDVIEWS AND PARTS LIST
N
OTES : • Parts marked by " * " are generally unavailable because they are not in our Master Spare Parts List.
• The >mark found on some component parts indicates the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of identical designation.
• Screw adjacent to mark on the product are used for disassembly.
• For the applying amount of lubricants or glue, follow the instructions in this manual.
(In the case of no amount instructions,apply as you think it appropriate.)
"

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2.1 PACKING
5
6
1
3
2
42
13
36
19
22
21 20
18
32
16
17
35
28
27
29
33
30
25 24
26
23 34
31
8
9
7
98
10
43
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40 38
41
15
37
4
4
44
14
11
12
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46

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PACKING SECTION PARTS LIST
Owner's Manual,Installation Manual
Mark No. Description Part No.
1-1 Owner's Manual CRB2232
1-2 Owner's Manual CRB2233
1-3 Installation Manual CRD4114
1-4 Caution Card CRP1310
* 1-5 Warranty Card CRY1246
* 1-6 Registration Card CRY1229
2 Polyethylene Bag CEG1185
3 Polyethylene Bag CEG1116
4 Sub Carton CHA3567
5 Carton CHG5950
6 Contain Box CHL5786
7 Protector CHP2432
8 Protector CHP3204
9 Protector CHP3205
10 Protector CHP3206
11 Microphone Assy CPM1066
12 Air Cushioned Bag CEG1081
13 Air Cushioned Bag CEG1007
14 Remote Control Assy CXC6690
* 15 Accessory Assy CXC6847
16 Screw BPZ20P050FTB
17 Screw CBA1650
18 Screw Assy CEA5144
19 Screw BMZ50P060FTC
20 Screw CBA1870
21 Screw CMZ50P060FTC
* 22 Polyethylene Sheet CNM4338
23 Screw Assy CEA5278
24 Screw BNC40P120FTB
* 25 Polyethylene Bag CEG1158
26 Screw HMF40P080FTB
27 Polyethylene Bag CEG1161
28 Fastener CNM3728
29 Fastener CNM3729
* 30 Fastener CNM6544
* 31 Fastener CNM6545
32 Bush CNV1917
33 Pen CNV8969
34 Angle Assy CXC6835
* 35 Polyethylene Bag E36-615
36 Cleaning Cloth VED1010
37 Antenna Cable CDH1265
38 Cord Assy CDE7321
39 Case Unit CXC6576
40 Cord Assy CDE8086
41 Cord Assy CDE8088
42 Cord Assy CDE8091
43 Cord Assy CDE8092
44 Panel CNS8689
45 Sheet CNM8603
46 Protector CHP3276
Mark No. Description Part No.
Part No. Language
CRB2232 English
CRB2233 French
CRD4114 English,French

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2.2 EXTERIOR(1)
D
E
F
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A
A
B
C
C
B
D
G
C
A
8
6
9
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56 52 52
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27
7
1
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5
3
4
61
61
62

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EXTERIOR(1) SECTION PARTS LIST
Mark No. Description Part No.
1 Mother Unit CWN1496
2 Cord Assy CDE8097
3 Cord Assy CDE8095
4 Cord Assy CDE8094
5 Cord Assy CDE8093
6 Terminal(CN951) CKF1064
7 Terminal(CN952) CKF1064
8 Terminal(CN3301) CKF1064
9 Terminal(CN3302) CKF1064
10 Plug(CN232) CKS-463
11 Connector(CN3201) CKS2600
12 Connector(CN752) CKS5566
13 Connector(CN871) CKS4822
14 Connector(CN851) CKS4823
15 Connector(CN701) CKS5045
16 Connector(CN702) CKS5100
17 Connector(CN571) CKS5113
18 Connector(CN751) CKS5492
19 Connector(CN753) CKS5494
20 Connector(CN651) CKS5501
21 Connector(CN572) CKS5533
22 Connector(CN231) CKS4674
23 Holder CND3497
24 Screw BPZ20P060FTC
25 Button(V.ADJUST, ENT, WIDE) CAC9689
26 Flat Cable CDE8105
27 Touch Panel CSX1098
28 Monitor Keyboard Unit CWN1517
29 Connector(CN6001) CKS5033
30 Screw(M2 x 2) CBA1872
31 Holder CND3222
32 Sheet CNN1071
33 Sheet CNN1072
34 Insulator CNN1073
35 Monitor Unit CWN1505
36 Checker Chip(CN4001) CKF1031
37 Checker Chip(CN4002) CKF1031
38 Checker Chip(CN4003) CKF1031
39 Terminal(CN5603) CKF1068
40 Terminal(CN5604) CKF1068
41 Terminal(CN5605) CKF1068
42 Connector(CN5501) CKS4428
43 Connector(CN4801) CKS5033
44 Connector(CN5301) CKS5111
45 Connector(CN5602) CKS5532
46 Connector(CN5601) CKS5533
47 Connector(CN4701) CKS5561
48 LCD Module CWX3341
49 Grille Unit CXC6199
50 Screw BMZ26P030FTC
51 Screw(M2 x 2.5) CBA1624
52 Screw(M2 x 2) CBA1872
53 Flat Cable CDE8103
54 Flat Cable CDE8104
55 Screw(M2 x 1.4) CBA2042
56 Cover Unit CXC6200
57 Holder CND3271
58 Holder CND3210
59 Cover CND3639
60 Screw JFZ20P018FTC
61 Sheet CNN1524
62 Sheet CNN1525
63 Screw IMS20P50FTB
Mark No. Description Part No.

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2.3 EXTERIOR(2)
A
A
C
F
F
D
E
B
C
D
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B
G
G
28
49
67
35
61 2236
34
3
2
2
21
6
6
2
10
55
2
12
25
3
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56
27
50
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4
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41 14 31
14 2
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38 37
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68 68
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30 69
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52 53
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13 24
23
60
29 69 75
18%X110X110
5
5
26
K
M
L
The application position of grease is referred to Page 16 and Page 17.

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EXTE-
RIOR(2) SECTION PARTS LIST
Mark No. Description Part No.
1 Drive Unit CXC6148
2 Screw(M2 x 2) CBA1608
3 Screw(M2 x 1.5) CBA1615
4 Screw(M2 x 2) CBA1872
5 Screw(M2 x 3) CBA1877
6 Screw CBA2027
7 Washer CBF1037
8 Washer CBF1039
9 Washer CBF1064
10 Spring CBH2906
11 Spring CBH2907
12 Spring CBH2908
13 Spring CBH2909
14 Spring CBL1723
15 Spring CBL1734
16 Cord CDE8127
17 Cord CDE8128
18 Shaft CLA4651
19 Shaft CLA4661
20 Shaft CLA4662
21 Shaft CLA4663
22 Shaft CLA4664
23 Shaft CLA4665
24 Shaft CLA4666
25 Holder CND3245
26 Cover CND3252
27 Sheet CNN1055
28 Sheet CNN1056
29 Insulator CNN1057
30 Insulator CNN1058
31 Sheet CNN1065
32 Insulator CNN1068
33 Gear CNR1855
34 Gear CNR1856
35 Gear CNR1857
36 Gear CNR1858
37 Gear CNR1859
38 Gear CNR1860
39 Gear CNR1861
40 Gear CNR1862
41 Gear CNR1864
42 Gear CNR1865
43 Gear CNV8980
44 Gear CNV8981
45 Gear CNV8983
46 Gear CNV8984
47 Gear CNV8985
48 Gear CNV8987
49 Rack CNV8995
50 Rack CNV8996
51 Guide CNV8997
52 Guide CNV8998
53 Guide CNV8999
54 Lever CNV9000
55 Arm CNV9001
56 Guide CNV9003
57 Guide CNV9004
58 Chassis Unit CXC6142
59 Frame Unit CXC6143
60 Case Unit CXC6144
61 Holder Unit CXC6145
62 Motor Unit CXC6638
63 Screw JGZ20P025FTC
64 Motor Unit CXC6639
65 Screw JGZ20P025FTC
66 Screw JFZ17P025FTC
67 Washer YE15FTC
68 Screw(M2 x 3) CBA1797
69 Screw CBA2041
70 Spring CBH2750
71 Spring CBL1720
72 Lever CND3250
73 Cover CNV9002
74 Arm CNV9005
75 Panel CNV9008
76 Panel CNV9009
77 Bracket Unit CXC6147
78 Main PCB Unit CZW5027
* 79 Volume PCB Unit CZW5028
* 80 Switch PCB Unit CZW5029
* 81 Insulator CNN1349
Mark No. Description Part No.

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CNR1865
CNV8984
CNV8985
CNV8981
CNV8980
CNR1862
CNR1861
CNR1860
CNR1859
- The gear assembly figure of the Drive Unit
- Grease
(1) : GEM1011
(3)
(2) : GEM1043
(3) : GEM1047
HOLDER
(CND3245)
HOLDER
HOLDER
GEAR
(1)
(2)
(1)
(1)
(3)

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(1) : GEM1011
(2) : GEM1043
(3) : GEM1047
(4) : GEM1024
(5) : GEM1072
(6) : GEM1071
(4)
(4)
(4)
(4)
(4)
(4)
(2)
(2)
(2)
(4) (4)
(4)
(6)
(6)
(4)
(4)
(5)
(5)
(5)
(5)
(5)
(1)
(1)
(5)
(2)

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2.4 EXTERIOR(3)
A
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C
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B
12
10 29
29 29
11
18 2
23
9
63
2
14
6
19
28
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26
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3
24 21
27
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61
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61 61
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68
61 55
57
5
18%X110%X110
The application position of grease is referred to Page 20.

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EXTERIOR(3) SECTION PARTS LIST
Mark No. Description Part No.
1 Drive Unit CXC6161
2 Screw AMZ26P030FTC
3 Screw(M2 x 1.4) CBA2025
4 Screw(M2 x 2) CBA1871
5 Screw(M2 x 2.5) CBA2026
6 Washer CBF1039
7 Spring CBH2905
8 Spring CBL1718
9 Cord CDE8121
10 Gear CND3231
11 Gear CND3232
12 Insulator CNN1060
13 Spacer CNN1258
14 Gear CNR1853
15 Guide CNV8954
16 Guide CNV8955
17 Guide CNV8956
18 Gear CNV8974
19 Gear CNV8975
20 Holder Unit CXC6076
21 Case Unit CXC6118
22 Bracket Unit CXC6121
23 Motor Unit CXC6122
24 Arm Unit CXC6123
25 Arm Unit CXC6124
26 Frame Unit CXC6125
27 Frame Unit CXC6126
28 Screw JGZ20P025FTC
29 Washer YE30FTC
30 Button CAC9682
31 Button CAC9683
32 Button CAC9684
33 Screw CBA1872
34 Cushion CNN1259
35 Lighting Conductor CNV8959
36 Lighting Conductor CNV8960
37 LCD(LCD7001) CAW1921
38 Connector(CN7401) CKS5502
39 Holder CND3214
40 Sheet CNM9990
41 Spacer CNN1257
42 Lighting Conductor CNV8965
43 Connector CNV8966
44 Knob Unit CXC6077
45 Spring CBL1721
46 Grille Unit CXC7165
47 Cover Unit CXC7171
48 •••••
49 Button Unit CXC6641
50 Spring CBL1733
51 Grille Assy CXC5656
52 Screw(M2 x 2) CBA1871
53 Screw CBA2009
54 Guide CNV8957
55 Bracket Assy CXC6106
56 Bracket Assy CXC6107
57 Panel Unit CXC7164
58 Flexible PCB CNP9204
59 DVD Mechanism Module(MS-4) CXK6500
60 Bracket CND3213
61 Screw BMZ20P030FTB
62 Screw IMS26P030FTB
63 Sheet CNN1262
64 Flexible PCB CNP9258
65 Guide CNV9015
66 Screw(M2 x 2) CBA1872
67 Sheet CNN1435
68 Screw TMS26P030FTC
69 Spring CBH2953
70 Connector CKS5503
Mark No. Description Part No.

AVH-P7800DVD/UC
20
1234
1234
C
D
F
A
B
E
(1) : GEM1024
(2) : GEM1070
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(2)
(2)