Panasonic PT-40LC12 User manual

Order No. MKE0204850C1
B2
Multi Media Display
PT-40LC12 / PT-45LC12
SPECIFICATIONS
1

1. SAFETY PRECAUSIONS
1.1. GENERAL GUIDELINES
1. For continued safety, no modification of any circuit should be
attempted.
2. Disconnect AC Plug before disassembling this unit.
3. It is advisable to use an isolation transformer in the AC supply before
servicing.
4. When servicing, observe the original lead dress. If a short circuit is
found, replace all parts which have been overheated or damaged by
the short circuit.
5. After servicing, see to it that all the protective devices such as
insulation barriers, insulation papers, shield, and isolation R-C
combinations etc. are properly installed.
6. After servicing, be sure to restore the wires, leads, insulation barriers,
shields, etc.
7. After servicing, make the leakage current checks to prevent the
customer from being exposed to shock hazards.
Caution:
Use a separate Isolation Transformer for this unit when servicing.
1.2. LEAKAGE CURRENT COLD CHECK
1. Unplug the AC cord and connect a jumper between the two prongs on
the plug.
2. For physically operated power switches, turn power on. Otherwise
skip step 2.
3. Measure the resistance value, with an ohmmeter, between the
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jumpered AC plug and each exposed metallic cabinet part on the
receiver, such as screwheads, connectors, etc. When the exposed
metallic part has a return path to the chassis, the reading should be
between 1 M and 12 M . When the exposed metal does not have a
return path to the chassis, the reading must be infinity.
1.3. LEAKAGE CURRENT HOT CHECK
1. Plug the AC cord directly into the AC outlet.
Do not use a isolation transformer for this check.
2. Connect a 1.5 k , 10 W resistor, in parallel with a 0.15 F capacitor,
between each exposed metallic part on the set and a good earth
ground , as shown in Figure 1.
3. Use an AC voltmeter, with 1 k /V or more sensitivity, to measure the
potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each
point.
5. Reverse the AC plug in the AC outlet and repeat each of the above
measurements.
6. The potential at any point should not exceed 0.75 V RMS.
A leakage current tester (Simpson Model 229 equivalent) may be used
to make the hot checks. Leakage current must not exceed 1/2 mA. In
case a measurement is outside of the limits specified, there is a
possibility of shock hazard, and the receiver should be repaired and
rechecked before it is returned to the customer.
Figure 1
1.4. UV-PRECAUTION
1. Be sure to disconnect the AC Plug when replacing the lamp.
2. Since the lamp reaches a very high temperature during its operation,
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wait until it has completely cooled off when replacing the Lamp Unit.
3. The lamp emits small amounts of UV-Radiation.
Avoid direct-eye contact by covering the Lamp and wearing the UV cut
protective glass.
4. The high pressure lamp involves a risk of explosion. Therefore, do not
touch the Lamp Bulb when servicing.
Figure 2
2. PREVENTION OF ELECTROSTATIC DISCHARGE
(ESD) TO ELECTROSTATICALLY SENSITIVE (ES)
DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such
components commonly are called Electrostatically Sensitive (ES) Devices. Examples of typical ES
devices are integrated circuits and some field-effect transistors and semiconductor "chip"
components. The following techniques should be used to help reduce the incidence of component
damage caused by electro static discharge (ESD).
1. Immediately before handling any semiconductor component or
semiconductor-equipped assembly, drain off any ESD on your body by
touching a known earth ground. Alternatively, obtain and wear a
commercially available discharging ESD wrist strap, which should be
removed for potential shock reasons prior to applying power to the
unit under test.
4

2. After removing an electrical assembly equipped with ES devices, place
the assembly on a conductive surface such as aluminum foil, to
prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES
devices.
4. Use only an antistatic solder removal device. Some solder removal
devices not classified as "antistatic (ESD protected)" can generate
electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical
charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package
until immediately before you are ready to install it. (Most replacement
ES devices are packaged with leads electrically shorted together by
conductive foam, aluminum foil or comparable conductive material).
7. Immediately before removing the protective material from the leads of
a replacement ES device, touch the protective material to the chassis
or circuit assembly into which the device will be installed.
CAUTION :
Be sure no power is applied to the chassis or circuit, and observe all
other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES
devices. (Otherwise harmless motion such as the brushing together of
your clothes fabric or the lifting of your foot from a carpeted floor can
generate static electricity (ESD) sufficient to damage an ES device).
3. OPERATION GUIDE
4. SERVICE NOTES
5. DISASSEMBLY/ASSEMBLY PROCEDURES
5.1. CABINET SECTION
5.2. LARGE VIEW FOR DISASSEMBLY/ASSEMBLY OF CABINET
6. SERVICE FIXTURES AND TOOLS
7. TROUBLESHOOTING HINTS
5

8. BLOCK DIAGRAMS
9. SCHEMATIC DIAGRAMS
9.1. SCHEMATIC DIAGRAM AND CIRCUIT BOARD LAYOUT NOTES
9.2. INTERCONNECTION SCHEMATIC DIAGRAM
9.3. FRONT JACK SCHEMATIC DIAGRAM
9.4. RGB JACK / OPERATION SCHEMATIC DIAGRAMS
9.5. AUDIO POWER / LAMP THERMISTOR / FRONT THERMISTOR / LAMP
COVER SWITCH SCHEMATIC DIAGRAMS
9.6. WAVEFORMS
10. CIRCUIT BOARD LAYOUT
10.1. FRONT JACK C.B.A. / RGB JACK C.B.A. / OPERATION C.B.A.
10.2. AUDIO POWER C.B.A. / LAMP THERMISTOR C.B.A. / FRONT
THERMISTOR C.B.A. / LAMP COVER SWITCH C.B.A.
11. EXPLODED VIEWS
11.1. MAIN PARTS SECTION (1)
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11.2. MAIN PARTS SECTION (2)
7

11.3. BASE FRAME SCTION
8

11.4. TV FARME SECTION
9

11.5. PACKING PARTS AND ACCESSORIES SECTION
10

12. REPLACEMENT PARTS LISTS
BEFORE REPLACING PARTS, READ THE FOLLOWING:
12.1. REPLACEMENT NOTES
12.1.1. General Notes
1. Use only original replacement parts:
To maintain original function and reliability of repaired units, use only
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original replacement parts which are listed with their part numbers in
the parts list.
2. IMPORTANT SAFETY NOTICE
Components identified by the sign have special characteristics
important for safety. When replacing any of these components, use
only the specified parts.
3. SPECIAL NOTE
All integrated circuits and many other semiconductor devices are
electrostatically sensitive and therefore require the special handling
techniques described under the "ELECTROSTATICALLY SENSITIVE
(ES) DEVICES" section of this service manual.
4. Parts with no Ref. No. in "EXPLODED VIEWS" are not supplied. And
some Ref. No. will be skipped. Be sure to make your orders of
replacement parts according to the parts list.
5. Parts different in shape or size may be used. However, only
interchangeable parts will be supplied as service replacement parts.
6. Parts with mark "MKE" in the Remarks column are supplied from MKE.
Others are supplied from MKA.
7. Item numbers with capital letter E (Example: E10, E20,...) in the Ref.
No. column are shown in the exploded views.
8. Parts whose Ref. Nos. are the same are interchangeable as
replacement parts. Any of these parts may be ordered and used as a
replacement part.
12.1.2. Mechanical Replacement Notes
1. Section No. of parts shown in Exploded Views are indicated in the
Remarks column.
2. After replacing the Projection Unit (Ref. No. 11), be sure to perform
"Picture Position Adjustment," "Focus Adjustment," "Set LAMP RUN
TIME of original value," and "Reset Filter Time." Refer to "WHEN
REPLACING THE PROJECTION UNIT ON THE UNIT AT THE USER'S
LOCATION" in SERVICE NOTES.
3. When replacing the Projection Unit (Ref. No. 11), be sure to place the
Light Prevention Plate B (Ref. No. 16) on it.
4. The Infrared Remote Control Unit (Ref. No. 123) replacement part is
available as a complete assembly unit only. Do not try to disassemble
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the Infrared Remote Control Unit.
5. When replacing the Front Thermistor C.B.A. (Ref. No. E80) or the Base
Front Unit (Ref. No. 21), be sure to place the Joint Filter (Ref. No. 24).
6. After replacing the Filter Unit (Ref. No. 27), be sure to perform "Reset
Filter Time." Refer to "WHEN REPLACING THE PROJECTION UNIT ON
THE UNIT AT THE USER'S LOCATION" in SERVICE NOTES.
7. The individual parts in the Lamp Fan Unit (Ref. No. 271) are not
supplied separately. When replacing the fan, install after removing the
duct from the unit.
12.1.3. Electrical Replacement Notes
1. Unless otherwise specified;
All resistors are in , K = 1,000 , M = 1,000 k .
2. Abbreviation
RTL:
Retention Time Limited
This indicates that the retention time is limited for this item. After the
discontinuation of this item in production, it will no longer be available.
NR:
Non Repairable Board Ass'y
MGF CHIP:
Metal Glaze Film Chip
C CHIP:
Ceramic Chip
COMPLX CMP:
Complex Component
W FLMPRF:
Wirewound Flameproof
C.B.A.:
Circuit Board Assembly
P.C.B.:
Printed Circuit Board
E.S.D.:
Electrostatically Sensitive Devices
3. When replacing 0 resistor, a wire can be substituted for it.
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4. LCD Power C.B.A. (Ref. No. E20) replacement note:
LCD Power C.B.A. is supplied as a unit only. Please note that
individual parts on it are not supplied. However, the parts with Ref. No.
in "EXPLODED VIEWS" are available separately as replacement parts.
5. Connector Cable (Ref. No. P1701) replacement note:
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE NUMBER LSJA0411 (115 °C).
12.2. MECHANICAL REPLACEMENT PARTS LIST
MECHANICAL REPLACEMENT PARTS
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Ref. No. Part No. Part Name & Description Remarks
1LSYK0905 BACK COVER UNIT 1
2LSKF0435 AV FRONT DOOR 1
3TEKC011 SHAFT DUMPER 1
4LSYY0018 FRONT COVER L UNIT 1
5LSYY0019 FRONT COVER R UNIT 1
11 LSXA0459-HB PROJECTION UNIT ( A ) 2
11 LSXA0465-HB PROJECTION UNIT ( B ) 2
12 LSGF0052 LIGHT PREVENTION PLATE A,POLYCARBONATE 1
13 LSMA0604 FRONT BAR 2
15 LSYK0909 SCREEN UNIT ( A ) 1
15 LSYK0932 SCREEN UNIT ( B ) 1
16 LSGF0053 LIGHT PREVENTION PLATE B,POLYCARBONATE 2
17 LSSC0569 LAMP GROUNDING PLATE,STEEL 2
18 STL450-3-1BK CLAMPER 1,3
21 LSYK0959 BASE FRONT PANEL UNIT 2
22 LSYF0533 LAMP COVER UNIT 2
23 LSMA0601 GROUNDING PLATE,STEEL 2
24 LSMF0079 JOINT FILTER 2
25 LSSC0566 FRONT JACK GROUNDING PLATE A,STEEL 2
26 LSSC0567 FRONT JACK GROUNDING PLATE B,STEEL 2
27 LSYF0530 FILTER UNIT 2,5
28 L0AA12A00006 SPEAKER 2
29 LSMF0083 SPACER 2,3
31 LSQL1337 CAUTION LABEL A 2
32 LSQL1338 FILTER LABEL 2
33 LSYK0907 CENTER PANEL UNIT ( A ) 1
33 LSYK0930 CENTER PANEL UNIT ( B ) 1
34 TMM14414 STRIKE 1
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Ref. No. Part No. Part Name & Description Remarks
35 TMM14415 SUPPORT PLATE,PLASTIC 1
36 LSGQ0059 FAN DUCT 2
37 LSMA0605 FAN PLATE,STEEL 2
38 FBL12G12L2CS DUCT FAN 2
39 LSGF0051 LIGHT PREVENTION PLATE C,POLYCARBONATE 2
41 LSMA0603 TOP PLATE LEFT,STEEL 3
42 LSMA0615 TOP PLATE RIGHT,STEEL 3
44 LSMA0606 OPTICAL BASE PLATE,STEEL 3
45 LSMA0602 TOP PLATE REAR,STEEL 3
46 LSGQ0063 PIPE HOLDER 3
47 LSGQ0060 FRONT BOSS A 3
48 LSSC0558 POWER GROUNDING PLATE,STEEL 2
49 LSMA0591 JOINT PLATE,STEEL 3
50 LSSC0568 GROUNDING PLATE,STEEL 2
51 LSSC0570 POWER GROUNDING PLATE REAR,STEEL 2
52 LSGK0096 PIPE 3
53 TMM6463-1 CLAMPER 2
61 LSGV0039 BACK PANEL ( A ) 1
61 LSGV0040 BACK PANEL ( B ) 1
62 LSDL0213 MIRROR ( A ) 1
62 LSDL0214 MIRROR ( B ) 1
63 LSMA0588 MIRROR PLATE TOP,STEEL 1
64 LSMA0599 SCREEN BASE PLATE FRONT,STEEL 1
65 LSMA0614 SCREEN BASE PLATE REAR,STEEL 1
66 LSMA0592 MOUNT PLATE,STEEL 1
67 LSMF0218 SPACER C 1
68 LSMF0219 SPACER D 1
71 LSMA0586 BASE PLATE R,STEEL 3
72 LSMA0609 BASE PLATE L,STEEL 3
73 LSMA0613 OPTICAL BASE PLATE,STEEL 3
74 LSGQ0056 FRONT SPEAKER HOLDER L 3
75 LSGQ0055 FRONT SPEAKER HOLDER R 3
76 LSGQ0057 REAR SPEAKER HOLDER 3
77 LSEQ0645 SPEAKER BOX UNIT 3
79 LSJA0349-FE AC CORD W/PLUG,120V 4
80 LSJH0064 REAR JACK PANEL 4
81 LSMP0381 TV FRAME 4
82 LSMA0452 SUPPORT PLATE,STEEL 4
83 LSSC0565 REAR JACK GROUNDING PLATE,STEEL 4
84 LSKU0017 BASE FRAME 3
85 LSMG0113 SPACER 3
86 LSMZ0331 SPACER 2
87 LSMG0114 SPACER 3
101 LSPG1373 PACKING CASE,PAPER ( A ) 5
101 LSPG1374 PACKING CASE,PAPER ( B ) 5
102 LSPG1375 PACKING CASE BOTTOM,PAPER 5
103 LSPN0267 TOP CUSHION LEFT,STYROFOAM ( A ) 5
103 LSPN0271 TOP CUSHION LEFT,STYROFOAM ( B ) 5
104 LSPN0268 TOP CUSHION RIGHT,STYROFOAM ( A ) 5
104 LSPN0272 TOP CUSHION RIGHT,STYROFOAM ( B ) 5
105 LSPN0265 BOTTOM CUSHION LEFT,STYROFOAM 5
106 LSPN0266 BOTTOM CUSHION RIGHT,STYROFOAM 5
107 LSPN0293 CENTER CUSHION,STYROFOAM 5
108 LPE64005A BAG,POLYETHYLENE 5
109 EUR7603Z80 INGRARED REMOTE CONTROL UNIT 5
110 LSJA0239 RGB CABLE W/PLUG 5
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Ref. No. Part No. Part Name & Description Remarks
111 LSQT0583A INSTRUCTION BOOK 5
202 L6FCNGEH0001 FRONT FAN 2 MKE
204 LSMF0078 SEAL FILTER 2 MKE
209 LSJA0439 GROUNIDNG WIRE 2 MKE
220 LSJA0432 CONNECTOR CABLE W/PLUG,5V 2 MKE
271 LSXA0446 LAMP FAN UNIT 2 MKE
272 LSRF0008 FAN 2
281 VMFS0134 SHEET,NYLON-RAYON 2,4
286 LSJA0414 GROUNDING WIRE 4
293 J0KG00000034 FERRITE CORE 2,4
401 XTV4+16A TAPPING SCREW,STEEL 1,2,3
402 XTV3+8J TAPPING SCREW,STEEL 1,2,3,4
403 XTW3+8PR SCREW,STEEL 2
404 XTV4+14J SCREW,STEEL 1,2,3
405 XTV4+20A TAPPING SCREW,STEEL 2
406 XTV3+10J TAPPING SCREW,SCREW 1
407 XTS3+8JFZ TAPPING SCREW,STEEL 1
408 XTN4+12AR SCREW,STEEL 4
409 XTV3+10JR SCREW,STEEL 4
410 XYN3+F10S SCREW W/WASHER,STEEL 2
413 XSB4+35 SCREW,STEEL 2 MKE
418 XTN3+4F SCREW,STEEL 2 MKE
432 XTV3+25G SCREW,STEEL 2 MKE
435 XTV3+20J TAPPING SCREW,STEEL 2
439 XWG46F115 WASHER,STEEL 2
701 EYF52BC FUSE HOLDER 2,4
702 LML69002A CLAMPER 4
705 LSJA0438 GROUNDING WIRE 4
706 TMM7464-1 CLAMPER 4
710 LSJA0428 CONNECTOR CABLE W/PLUG,5V 4
712 VMFS0320 SPACER 4
713 VMTS0059 CUSHION,RUBBER 4
714 VMTS0035 CUSHION,RUBBER 4
718 LSJA0429 CONNECTOR CABLE W/PLUG,5V 4
721 LSMF0057 SHEET,NYLON-RAYON 4
723 LSLQ0307 FERRITE CORE 4
725 LSJA0431 CONNECTOR CABLE W/PLUG,5V 4
726 LSJA0430 CONNECTOR CABLE W/PLUG,5V 4
727 LSJA0433 CONNECTOR CABLE W/PLUG,3.3V 2
728 LSSC0559 HEAT SINK 2
729 TMM5439-1 CLAMPER 2
731 PNA4611M00HD INFRARED RECEIVER UNIT 1
E10 LSEP3067A TV MAIN C.B.A. 4
E20 LSEB3062A1 LCD POWER C.B.A. NR 2
E30 LSEP3065A AUDIO POWER C.B.A. 2 RTL
E40 LSEP3068A FRONT JACK C.B.A. 2 RTL
E50 LSEP3072A RGB JACK C.B.A. 2 RTL
E60 LSEP3069A REAR JACK C.B.A. 4
E70 LSEP3071A OPERATION C.B.A. 1 RTL
E80 LSEP3081A FRONT THERMISTOR C.B.A. 2 RTL
E90 LSEP3082A LAMP COVER SWITCH C.B.A. 2 RTL
E110 LSEP3080A1 LAMP THERMISTOR C.B.A. 2 RTL MKE
SERVICE FIXTURES AND TOOLS
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Ref. No. Part No. Part Name & Description Remarks
LSYF0532 FILTER TOOL
LSUA0035 EXTENSION CABLE
12.3. ELECTRICAL REPLACEMENT PARTS LIST
PRINTED CIRCUIT BOARD ASSEMBLY
Ref. No. Part No. Part Name & Description Remarks
E10 LSEP3067A TV MAIN C.B.A. E.S.D.
E20 LSEB3062A1 LCD POWER C.B.A. NR
E30 LSEP3065A AUDIO POWER C.B.A. RTL
E40 LSEP3068A FRONT JACK C.B.A. RTL
E50 LSEP3072A RGB JACK C.B.A. RTL
E60 LSEP3069A REAR JACK C.B.A. E.S.D.
E70 LSEP3071A OPERATION C.B.A. RTL
E80 LSEP3081A FRONT THERMISTOR C.B.A. RTL
E90 LSEP3082A LAMP COVER SWITCH C.B.A. RTL
E110 LSEP3080A1 LAMP THERMISTOR C.B.A. RTL MKE
12.3.1. TV MAIN C.B.A.
MISCELLANEOUS
Ref. No. Part No. Part Name & Description Remarks
286 LSJA0414 GROUNDING WIRE
293 J0KG00000034 FERRITE CORE
702 LML69002A CLAMPER
705 LSJA0438 GROUNDING WIRE
706 TMM7464-1 CLAMPER
710 LSJA0428 CONNECTOR CABLE W/PLUG,5V
712 VMFS0320 SPACER
713 VMTS0059 CUSHION,RUBBER
718 LSJA0429 CONNECTOR CABLE W/PLUG,5V
12.3.2. LCD POWER C.B.A.
COILS
Ref. No. Part No. Part Name & Description Remarks
L1309 LSLQ0307 FERRITE CORE
L1709 LSLQ0307 FERRITE CORE
L1710 LSLQ0392 FERRITE CORE
L1711 LSLQ0392 FERRITE CORE
L1712 LSLQ0307 FERRITE CORE
L1713 LSLQ0307 FERRITE CORE
PIN HEADERS
Ref. No. Part No. Part Name & Description Remarks
P1701 LSJA0411 CONNECTOR CABLE W/PLUG,120V
P1702 LSJA0412 CONNECTOR CABLE W/PLUG,16V
MISCELLANEOUS
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Ref. No. Part No. Part Name & Description Remarks
272 LSRF0008 FAN
435 XTV3+20J TAPPING SCREW,STEEL
12.3.3. AUDIO POWER C.B.A.
DIODES
Ref. No. Part No. Part Name & Description Remarks
D1101 B0EBNR000007 DIODE SI
CAPACITORS
Ref. No. Part No. Part Name & Description Remarks
C1101 LSCE0134 ELECTROLYTIC 50V 4700UF
PIN HEADERS
Ref. No. Part No. Part Name & Description Remarks
P1101 VJPS0704 CONNECTOR 2P
P1102 LSJA0417 CONNECTOR CABLE W/PLUG,33V
FUSE & PROTECTOR
Ref. No. Part No. Part Name & Description Remarks
F1101 VSFS0003A16 FUSE 125V 1.6A
F1101 K5D162AB0003 FUSE 125V 1.6A
F1101 K5D162AQ0004 FUSE 125V 1.6A
TRANSFORMER
Ref. No. Part No. Part Name & Description Remarks
T1103 ETP59VQU21PA TRANSFORMER
MISCELLANEOUS
Ref. No. Part No. Part Name & Description Remarks
410 XYN3+F10S SCREW W/WASHER,STEEL
701 EYF52BC FUSE HOLDER
728 LSSC0559 HEAT SINK
729 TMM5439-1 CLAMPER
12.3.4. FRONT JACK C.B.A.
RESISTORS
Ref. No. Part No. Part Name & Description Remarks
R3951 ERDS2TJ750 CARBON 1/4W 75
R3952 ERDS2TJ750 CARBON 1/4W 75
R3953 ERDS2TJ750 CARBON 1/4W 75
R4590 ERDS2TJ122 CARBON 1/4W 1.2K
R4591 ERDS2TJ102 CARBON 1/4W 1K
R4592 ERDS2TJ122 CARBON 1/4W 1.2K
R4593 ERDS2TJ102 CARBON 1/4W 1K
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PIN HEADERS
Ref. No. Part No. Part Name & Description Remarks
P3902 LSJA0425 CONNECTOR CABLE W/PLUG,9V
P4591 LSJA0426 CONNECTOR CABLE W/PLUG,27V
P4801 LSJA0427 CONNECTOR CABLE W/PLUG,5V
JACKS
Ref. No. Part No. Part Name & Description Remarks
JK4590 K2HC103A0017 EARPHONE JACK SOCKET
JK4801 K1U412A00008 S-JACK SOCKET
JK4802 K2HC103A0017 EARPHONE JACK SOCKET
12.3.5. RGB JACK C.B.A.
DIODES
Ref. No. Part No. Part Name & Description Remarks
D3901 B0BD6R800007 DIODE ZENER 6.8V
D3901 NNCD6.2G-T1 DIODE ZENER CHIP 6.2V
FILTERS
Ref. No. Part No. Part Name & Description Remarks
FL3901 J0MAB0000055 FILTER
FL3902 J0MAB0000055 FILTER
FL3903 J0MAB0000055 FILTER
COILS
Ref. No. Part No. Part Name & Description Remarks
L3902 ERJ3GEY0R00V MGF CHIP 1/16W 0
L3903 ERJ3GEY0R00V MGF CHIP 1/16W 0
PIN HEADERS
Ref. No. Part No. Part Name & Description Remarks
P3901 K1KA11B00039 CONNECTOR 11P
JACKS
Ref. No. Part No. Part Name & Description Remarks
JK3901 K1FB115A0015 D-SUB MINI JACK SOCKET
12.3.6. REAR JACK C.B.A.
MISCELLANEOUS
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