Pioneer AVD-505 User manual

COLOR DISPLAY
• AVD-505/US
COLOR DISPLAY
AVD-505 US,EW
Se r v i c e
M a nu a l
PIONEER ELECTRONIC CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, Wheelock Place, Singapore 23880
C PIONEER ELECTRONIC CORPORATION 1998
ORDER NO.
CRT2239
CONTENTS
1. SAFETY INFORMATION ............................................2
2. EXPLODED VIEWS AND PARTS LIST.......................2
3. SCHEMATIC DIAGRAM .............................................6
4. PCB CONNECTION DIAGRAM ................................14
5. ELECTRICAL PARTS LIST ........................................19
6. ADJUSTMENT..........................................................23
7. GENERAL INFORMATION .......................................25
7.1 IC ........................................................................25
7.2 DISASSEMBLY ...................................................28
7.3 BLOCK DIAGRAM ..............................................29
8. OPERATIONS AND SPECIFICATIONS.....................30
K-ZZD. JULY 1998 Printed in Japan
-Precautions on Safety for Replacement of Backlight
• High voltage is generated in the inverter when the power is supplied to the system. To avoid an electric
shock, reconfirm that the power switch is set to OFF before starting operation.
• The fluorescent tube and high-voltage parts have high temperature immediately after the power
switch of the main unit is set to OFF. To avoid burning your hand or similar accidents, wait awhile after
turning the power to OFF, then start operation.
• High voltage may be charged to the inverter immediately after the power switch of the main unit is set
to OFF. Wait awhile after turning the power to OFF, then start operation.
• In some cases, the fluorescent tube of backlight may be damaged. Take adequate caution for injury
during operation.

2
AVD-505
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING
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
1. SAFETY INFORMATION

3
AVD-505
NOTE:
-Parts marked by “*”are generally unavailable because they are not in our Master Spare Parts List.
-Screws adjacent to Ñmark on the product are used for disassembly.
-Owner's Manual
Model Part No. Language
AVD-505/US CRB1419 English
AVD-505/EW CRD2630 English, Spanish, German, French, Italian, Dutch
* 1 Card See Contrast table (2)
* 2 Bracket CNC5685
3 Bracket CNC7617
* 4 Screw Assy CEA2459
5 Screw BMZ40P040FZK
6 Washer CBE1044
7 Screw HMB40P060FZK
8 Cushion Assy CEA2476
* 9 Cushion CNM6042
10 Polyethylene Bag See Contrast table (2)
11 Carton See Contrast table (2)
12 Contain Box See Contrast table (2)
13 Protector CHP2024
14 Protector CHP2025
15 Owner’s Manual See Contrast table (2)
* 16 Polyethylene Bag E36-634
17 Cushion See Contrast table (2)
* 18 Bracket Assy CEA2458
* 19 Warranty Card See Contrast table (2)
20 Mounting Base See Contrast table (2)
21 Inner Box See Contrast table (2)
22 Cover CNV5716
(1) PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
(2) CONTRAST TABLE
AVD-505/US and AVD-505/EW are constructed the same except for the following:
Part No.
Mark No. Description AVD-505/US AVD-505/EW
* 1 Card ARY1048 Not used
10 Polyethylene Bag CEG1173 CEG-162
11 Carton CHG3588 CHG3566
12 Contain Box CHL3588 CHL3566
15 Owner’s Manual CRB1419 CRD2630
17 Cushion Not used CNM4680
* 19 Warranty Card Not used CRY1088
20 Mounting Base Not used CXB3063
21 Inner Box Not used CHW1748

4
AVD-505
2.2 EXTERIOR

5
AVD-505
1 Bracket CNC7617
2 Screw BPZ20P050FMC
3 Screw BPZ26P120FZK
4 Knob CAC5356
5 Knob CAC5540
6 Screw CBA1082
7 Screw CBA1154
8 Spring CBH1708
9 Spring CBH2094
* 10 Connector CKS3765
11 Holder CNC6326
12 Cushion CNM5900
13 Cushion CNM5905
14 Cover CNM5958
15 PCB CNP5055
16 Case CNS4801
17 Speaker CPV1041
18 Display Assy CXB2131
19 Back Light Unit CAX1027
20 IC(IC1701) SBX8035
21 LCD Panel CAY1033
22 Shield CNC7351
23 Shield CNC7952
24 Insulator CNM5864
25 LCD Unit CWM5724
26 Connector(CN1003) CKS1962
27 Connector(CN1201) CKS3124
28 Connector(CN1151) CKS3192
29 Connector(CN1601) CKS3657
30 Spacer CNM5468
31 Grille Assy See Contrast table (2)
32 Slider Unit CXB2312
33 Screw BPZ26P080FZK
34 Screw CBA1082
35 Screw CBA1083
36 Cord Assy CDE5561
37 Bracket CNC7510
38 Bracket CNC7511
39 Case CNS4816
40 Cover CNS4883
41 Cover CNS4884
42 Screw CPZ26P080FZK
43 Plug(CN2002) CKS3274
44 Plug(CN2003) CKS3282
* 45 Connector(CN2001) CKS3764
* 46 Gathering PCB CNX2872
47 Bracket CNC5685
* 48 Cushion CNM6042
49 Washer CBE1044
50 Screw HMB40P060FZK
51 Screw BMZ40P040FZK
52 Mounting Base See Contrast table (2)
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.
(2) CONTRAST TABLE
AVD-505/US and AVD-505/EW are constructed the same except for the following:
Part No.
Mark No. Description AVD-505/US AVD-505/EW
31 Grille Assy CXB3537 CXB2132
52 Mounting Base Not used CXB3063

6
AVD-505
A
1234
B
C
D
1234
4
5
6
RED SIGNAL
SYNCHRONIZING SIGNAL
REMOTE CONTROL SENSOR
DC-DC CONVERTER
DC-AC
INVERTER
SWITCHING
REGULATOR
7.75V
23
24
2
3
1
LCD UNIT
A
RELAY UNIT
B
A-a A-b
A-aA-a A-bA-b
A-bA-b
A-aA-a
Large size
SCH diagram
Guide page
Detailed page
3. SCHEMATIC DIAGRAM
3.1 LCD UNIT AND RELAY UNIT(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL
PARTS LIST”.
A
A-a
B

7
AVD-505
5678
A
B
C
D
5678
7
8
19 18
17
14
15
16
22
21
20
13
12
11
10
9
BRIGHT
VOLUME
BUFFER
LCD CONTROL
COM AMP
VIDEO SIGNAL PROCESSOR
CLAMP
CIRCUIT
-8.9V
-10.9V
-16.0V
A
A-b

8
AVD-505
A
1234
B
C
D
1234
RED SIGNAL
SYNCHRONIZING SIGNAL
REMOTE CONTROL SENSOR
DC-DC CONVERTER
BUFFER
CLAMP CIRCUIT
SWITCHING REGULATOR
23
24
1
LCD UNIT
A
Y UNIT
A-a A-b
A-a
B

9
AVD-505
5678
A
B
C
D
5678
4
5
6
7
DC-AC INVERTER
REGULATOR
7.75V
2
3
RELAY UNI
B
A-a
A-a A-b
B

10
AVD-505
A
1234
B
C
D
1234
19 18
17
14
15
16
22
21
20
13
12
11
10
9
LCD CONTROL
COM AMP
-8.9V
-10.9V
-16.0V
A-a A-b
A-b

11
AVD-505
5678
A
B
C
D
5678
8
19 18
BRIGHT
VOLUME
VIDEO SIGNAL PROCESSOR
A-b
A-a A-b

12
AVD-505
-Waveforms
CH1:DC 10V/div. 5µs/div.
CH1, CH2, CH3:2V/div. 1ms/div.
CH1, CH2:2V/div. 20µs/div.
CH1:5V/div. 2µs/div.
CH1:5V/div. 5µs/div.
CH1:1V/div., CH2, CH3:5V/div. 20µs/div.
CH1:1V/div., CH2, CH3:5V/div. 20µs/div.
CH1:1V/div., CH2, CH3:5V/div. 200µs/div.
Note:The encircled numbers denote measuring pointes in the circuit diagram.
1
4
3,5
7
2
8
6
7
9
0
7
!
@
7
%
^
1
2
3
1
1
2
1
1
1
2
3
1
2
3
1
2
3

13
AVD-505
CH1:1V/div., CH2, CH3:5V/div. 2µs/div.
CH1:1V/div., CH2 5V/div., CH3:10V/div.
20µs/div.
CH1:1V/div., CH2:5V/div. 50µs/div.
CH1 , CH2, CH3:5V/div. 20µs/div.
CH1:1V/div., CH2, CH3:5V/div. 50µs/div.
7
*
(
7
#
$
7
&
)
21
22
7
23
24
1
2
3
1
2
3
1
2
1
2
3
1
2
3

14
AVD-505
A
1234
B
C
D
1234
4. PCB CONNECTION DIAGRAM
4.1 LCD UNIT
A
LCD UNIT
A
BACKLIGHT UNIT

LOW
HIGH
BACK LIGHT
BRIGHTVOLUME
15
AVD-505
5678
A
B
C
D
5678
NOTE FOR PCB DIAGRAMS
1. The parts mounted on this PCB include all necessary
parts for several destination.
For further information for respective destinations,
be sure to check with the schematic diagram.
Capacitor
Connector
P.C.Board Chip Part
SIDE A
SIDE B
2. Viewpoint of PCB diagrams
A
SIDE A
CN2001
B
BACKLIGHT UNIT LCD PANEL

16
AVD-505
A
1234
B
C
D
1234
LCD UNIT
A
A

17
AVD-505
5678
A
B
C
D
5678
SIDE B
A

18
AVD-505
A
1234
B
C
D
1234
A
4.2 RELAY UNIT SIDE A
SIDE B
RELAY UNIT
B
RELAY UNIT
B
CN1003
CORD ASSY
B

19
AVD-505
Unit Number : CWM5724
Unit Name : LCD Unit
MISCELLANEOUS
IC 1001 IC FA7610CN
IC 1051 IC TL5001PS-M
IC 1151 IC NJM2903V
IC 1351 IC BA7606F
IC 1391 IC NJM2246M
IC 1401 IC IR3Y29A
IC 1501 IC LZ9GF16
IC 1511 IC NJM2107F
IC 1531 IC TC7S14FU
IC 1551 IC TC74HC123AF
IC 1651 IC NJM082BV
IC 1701 IC SBX8035-H
IC 1801 IC TC7W32FU
Q 1001 Transistor 2SC3518-Z
Q 1051 Transistor 2SA1615-Z
Q 1052 Transistor 2SC2411K
Q 1053 Transistor 2SA1036K
Q 1101 Transistor 2SC3518-Z
Q 1102 Transistor 2SC3518-Z
Q 1103 Transistor 2SC2412K
Q 1104 Transistor DTC144EK
Q 1105 Transistor 2SD1767
Q 1161 Transistor DTC144EK
Q 1171 Transistor 2SC2412K
Q 1201 Transistor 2SA1576
Q 1202 Transistor 2SC4081
Q 1382 Transistor 2SC2412K
Q 1501 Transistor DTA114TK
Q 1521 Transistor 2SC2411K
Q 1531 Transistor 2SD601A
Q 1651 Transistor FMY3A
Q 1652 Transistor FMY4A
Q 1701 Transistor DTA144EK
Q 1702 Transistor 2SC2412K
D 1002 Diode 1SS250
D 1003 Diode MA8130(M)
D 1004 Diode 1SS250
D 1005 Diode SFPB-54V
D 1006 Diode 1SS250
D 1007 Diode UDZ16(B)
D 1051 Diode SFPB-74VL
D 1151 Diode MA153
D 1203 Diode UDZ2R0(B)
D 1204 Diode UDZ2R0(B)
D 1351 Diode UDZ2R0(B)
D 1352 Diode UDZ2R0(B)
D 1353 Diode UDZ2R0(B)
D 1354 Diode UDZ2R0(B)
D 1355 Diode UDZ2R0(B)
D 1356 Diode UDZ2R0(B)
D 1461 Diode MA153
D 1501 Diode MA152WK
D 1511 Diode MA335
D 1531 Diode MA716
D 1602 Diode UDZ9R1(B)
D 1603 Diode UDZ11(B)
D 1701 Diode MA110
D 1702 LED SLR-322VR
D 1801 Diode MA153
D 1802 Diode MA153
L 1001 Coil CTH1195
L 1002 Inductor LCTB120K2125
L 1003 Inductor LCTA101K3225
L 1004 Inductor LCTA101K3225
L 1005 Inductor CTF1338
L 1006 Inductor LCTA101K3225
L 1052 Inductor LCTB120K2125
L 1053 Choke Coil 100µH CTH1179
L 1101 Choke Coil 120µH CTH1205
L 1102 Choke Coil 100µH CTH1179
L 1351 Inductor LCTA150K3225
L 1381 Inductor LCTA100K3225
L 1401 Inductor LCTA100K3225
L 1402 Inductor LCTB100K2125
L 1491 Inductor LCTA100K3225
L 1501 LCTA2R2J3225
L 1502 Inductor LCTB5R6K3216
L 1503 Coil CTE1131
L 1551 Inductor LCTB120K2125
L 1601 Inductor LCTB2R2K2125
L 1602 Inductor LCTB120K2125
L 1603 Inductor LCTB120K2125
L 1604 Inductor LCTB220K2125
L 1651 Inductor LCTA101K3225
L 1652 Inductor LCTA101K3225
L 1701 Inductor LCTA150K3225
L 1801 Inductor LCTA100K3225
T 1001 Transformer CTT1082
T 1101 Transformer CTT1083
T 1102 Transformer CTT1083
S 1101 Switch(Backlight) CSH1051
VR 1001 Semi-fixed 1k½(B) CCP1338
VR 1051 Semi-fixed 1k½(B) CCP1338
VR 1403 Semi-fixed 33k½(B) CCP1347
VR 1404 Semi-fixed 33k½(B) CCP1347
VR 1405 Semi-fixed 33k½(B) CCP1347
VR 1409 Semi-fixed 10k½(B) CCP1344
VR 1410 Volume 100k½(B) CCW1020
VR 1412 Semi-fixed 10k½(B) CCP1344
VR 1413 Semi-fixed 33k½(B) CCP1347
VR 1471 Volume 100k½(B) CCW1020
VR 1651 Semi-fixed 10k½(B) CCP1344
FU 1001 Fuse 1A CEK1175
FU 1051 Fuse 1A CEK1175
FU 1101 Fuse 1.5A CEK1183
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
5. ELECTRICAL PARTS LIST
NOTE:
-Parts whose parts numbers are omitted are subject to being not supplied.
-The part numbers shown below indicate chip components.
Chip Resistor
RS1/_S___J,RS1/__S___J
Chip Capacitor (except for CQS.....)
CKS....., CCS....., CSZS.....
A

20
AVD-505
EF 1552 CCG1067
EF 1801 CCG1067
EF 1802 CCG1067
RESISTORS
R 1001 RS1/10S684J
R 1002 RS1/10S393J
R 1003 RS1/10S184J
R 1004 RS1/10S0R0J
R 1005 RS1/10S105J
R 1006 RS1/10S272J
R 1007 RS1/10S223J
R 1008 RS1/10S182J
R 1009 RS1/10S0R0J
R 1011 RS1/10S102J
R 1012 RS1/10S103J
R 1013 RS1/4S121J
R 1014 RS1/10S103J
R 1015 RS1/4S271J
R 1051 RS1/10S103J
R 1052 RS1/10S132J
R 1053 RS1/10S124J
R 1054 RS1/10S272J
R 1055 RS1/10S753J
R 1056 RS1/10S563J
R 1057 RS1/10S101J
R 1058 RS1/10S622J
R 1059 RS1/10S223J
R 1062 RS1/10S222J
R 1063 RS1/10S222J
R 1064 RS1/10S222J
R 1065 RS1/10S102J
R 1101 RS1/4S152J
R 1102 RS1/10S103J
R 1103 RS1/10S562J
R 1104 RS1/10S103J
R 1105 RS1/4S391J
R 1106 RS1/4S391J
R 1108 RS1/10S223J
R 1109 RS1/10S472J
R 1111 RS1/10S472J
R 1112 RS1/4S391J
R 1113 RS1/8S0R0J
R 1114 RS1/8S0R0J
R 1151 RS1/16S103J
R 1152 RS1/16S103J
R 1153 RS1/16S104J
R 1154 RS1/16S104J
R 1155 RS1/16S103J
R 1156 RS1/16S104J
R 1157 RS1/16S103J
R 1161 RS1/16S203J
R 1162 RS1/16S223J
R 1163 RS1/16S823J
R 1164 RS1/16S393J
R 1171 RS1/16S273J
R 1172 RS1/16S473J
R 1173 RS1/16S103J
R 1201 RS1/16S393J
R 1202 RS1/16S392J
R 1203 RS1/16S223J
R 1204 RS1/16S223J
R 1351 RS1/10S750J
R 1352 RS1/10S750J
R 1353 RS1/10S750J
R 1356 RS1/16S0R0J
R 1381 RS1/10S360J
R 1382 RS1/10S390J
R 1386 RS1/16S563J
R 1387 RS1/16S563J
R 1388 RS1/10S152J
R 1391 RS1/16S334J
R 1401 RS1/16S101J
R 1402 RS1/16S101J
R 1403 RS1/16S101J
R 1409 RS1/16S101J
R 1416 RS1/16S101J
R 1417 RS1/16S101J
R 1418 RS1/16S101J
R 1421 RS1/16S473J
R 1422 RS1/16S333J
R 1423 RS1/16S473J
R 1424 RS1/16S333J
R 1425 RS1/16S393J
R 1426 RS1/16S333J
R 1427 RS1/16S513J
R 1428 RS1/16S393J
R 1429 RS1/16S473J
R 1430 RS1/16S513J
R 1440 RS1/16S101J
R 1444 RS1/16S433J
R 1445 RS1/16S393J
R 1446 RS1/16S473J
R 1447 RS1/16S333J
R 1448 RS1/16S101J
R 1455 RS1/16S102J
R 1456 RS1/16S511J
R 1461 RS1/16S393J
R 1462 RS1/16S203J
R 1463 RS1/16S0R0J
R 1486 RS1/16S0R0J
R 1487 RS1/16S0R0J
R 1488 RS1/16S0R0J
R 1490 RS1/16S0R0J
R 1501 RS1/16S563J
R 1502 RS1/16S561J
R 1503 RS1/16S561J
R 1504 RS1/16S561J
R 1505 RS1/16S133J
R 1506 RN1/16SE4702D
R 1507 RS1/16S561J
R 1508 RS1/16S561J
R 1509 RS1/16S0R0J
R 1511 RS1/16S224J
R 1512 RS1/16S105J
R 1513 RN1/10SE1000D
R 1514 RN1/10SE3901D
R 1515 RN1/10SE4701D
R 1516 RS1/16S473J
R 1517 RS1/16S163J
R 1518 RS1/16S683J
R 1519 RS1/10S185J
R 1521 RS1/16S273J
R 1522 RS1/16S0R0J
R 1525 RS1/16S103J
R 1526 RS1/16S272J
R 1527 RS1/16S101J
R 1528 RS1/16S332J
R 1529 RS1/16S331J
R 1531 RS1/16S564J
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ ------------------------- =====Circuit Symbol and No.===Part Name Part No. --- ------ ------------------------------------------ -------------------------