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Número de pieza DP32640
Descripción Remote Control Digital Color Television SERVICE MANUAL
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SERVICE MANUAL
FILE NO.
Remote Control Digital
Color Television
DP32640 (U.S.A.)
(CANADA)
ORIGINAL VERSION
Chassis No. P32640-05
NOTE: Match the Chassis No. on
the unit’s back cover with
the Chassis No. in the
Service Manual.
If the Original V ersion
Service Manual Chassis
No. does not match the
unit’s, additional Service
Literature is required. You
must refer to “Notices” to the
Original Service Manual
prior to servicing the unit.
Servicing should be performed by only trained and qualified service personnel.
Contents
SAFETY INSTRUCTIONS. . . . . . . . . . . . . . . . . . . . . . . . . 2
SERVICE ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . 3
ON-SCREEN SERVICE MENU . . . . . . . . . . . . . . . . . . . . . 4
POWER FAILURE CIRCUIT . . . . . . . . . . . . . . . . . . . . . . . 5
MECHANICAL DISASSEMBLY . . . . . . . . . . . . . . . . . . . . 6
CHASSIS ELECTRICAL PARTS LIST . . . . . . . . . . . . . . . . 8
COMPONENT AND TEST POINT LOCATIONS . . . . . . 20
BLOCK DIAGRAM POWER LINES. . . . . . . . . . . . . . . . . 23
BLOCK DIAGRAM SIGNAL LINES . . . . . . . . . . . . . . . . 24
IC BLOCK DIAGRAMS . . . . . . . . . . . . . . . . . . . . . . . . . . 25
TROUBLESHOOTING FLOW CHARTS . . . . . . . . . . . . . 31
MAIN IC PROCESSOR & PERIPHERICALS . . . . . . . . . . 34
SCHEMATIC NOTES . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
IC, DIODE, AND TRANSISTOR PIN LAYOUTS. . . . . . . 36
PC BOARD CONNECTIONS AND LOCATIONS . . . . . . 37
CAPACITOR AND RESISTOR CODE CHART . . . . . . . . 38
SCHEMATIC DIAGRAMS. . . . . . . . . . . . . . . . . . . . . . . . 39
DP32640, N8LK, PRODUCT CODE 113023404
Specifications
POWER RATING . . . . . . . . . . . . . . . . . . . . . . . . . 120VAC
122 W (AVG.)
ANTENNA INPUT IMPEDANCE. . . . . . . . . . . . . . . . . 75Ω
UHF/VHF/CATV
DIGITAL
RECEIVING CHANNEL . . . . . . . . . . . . . . . . . 2 - 13 (VHF),
14 - 69 (UHF),
01, 14-94, 95-135 (CATV)
1-135 (DIGITAL)
REMOTE READY. . . . . . . . . 36 KEY REMOTE CONTROL
SOUND OUTPUT. . . . . . . . . . . . . . . . . . . . . . . 10.0 W/CH
INTERMEDIATE FREQUENCY
PICTURE IF CARRIER . . . . . . . . . . . . . . . . . . 45.75MHz
SOUND IF CARRIER . . . . . . . . . . . . . . . . . . . 41.25MHz
COLOR SUB CARRIER . . . . . . . . . . . . . . . . . 42.17MHz
CABINET DIMENSIONS
WIDTH . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800mm
HEIGHT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 559mm
DEPTH INCLUDING BASE . . . . . . . . . . . . . . . . 241mm
REFERENCE No. SM780187
http://www.Datasheet4U.com

1 page




DP32640 pdf
POWER FAILURE CIRCUIT
Internal sub_CPU on main IC 5500 is programmed so the
set will go to standby mode when there is circuit failure as
described below. (Refer to“Block Diagram Power Lines”.)
This unit is equipped with a Power Failure Detector function
included in the sub_CPU which checks for an abnormal
condition in the chassis power supplies.
If, while the power is on, a failure is caused by any of the fol-
lowing that results in a low voltage supply, the sub_CPU will
turn the unit off in 1.5 seconds to prevent further damage:
Failure within the power supply circuits.
A short circuit in the load side from the supply.
Power Failure: Detected voltage failure for circuit.
(Connected to IC5500 pin D9, through RB5501.)
(Normal: High; Failure: Low)
If, while the power is off, the power is switched on and any
of these failures remains uncorrected, the sub_CPU will
shut off the power within three seconds.
Check the following if the unit is turned off by the power
failure detector.
1. Disconnect the AC power cord (120V AC line) for a short
time.
2. Connect a DC Voltmeter to the circuits shown below.
3. Press the Power key and check for the proper voltage
supplies.
4. If any of these voltages is low, the power failure detec-
tor should turn the unit off within three seconds.
5. Check all circuits shown below.
Note: If power failure is detected 3 times in 15 minutes,
the set will enter the standby mode and cannot be
switched On.To reset the operating programs of the
sub_CPU it is necessary to disconnect the AC cord
for a short time.
Power Board
IC5500 (sub_CPU)
K8B
1 Power On D5
D9 Power Fail
Main
D1613
D1668
D1641
D6700
5V
Audio_Pow
12V
9V
5V
–5–

5 Page





DP32640 arduino
Schematic
Location
Part No.
Description
L001
L002
L003
L004
L005
L010
L011
L012
L013
L5500
L5501
L5502
L5503
L5504
L5505
L5506
L5507
L5508
L5509
L5510
L5511
L5512
L5513
L5514
L5515
L5516
L6301
L6308
L6313
L6314
L6315
L6720
L6721
L6722
COILS
J0JCC0000371
G1C220MA0445
G1C220MA0445
G1C220MA0445
G1C220MA0445
J0JYC0000381
J0JYC0000381
J0JYC0000381
J0JYC0000381
J0JCC0000371
J0JCC0000371
J0JCC0000371
J0JYC0000381
J0JYC0000381
J0JCC0000371
J0JCC0000371
J0JCC0000371
J0JCC0000371
J0JCC0000371
J0JCC0000371
J0JCC0000371
D0GB750JA072
J0JCC0000371
J0JCC0000371
J0JCC0000371
G1CR22JA0041
D0GDR00JA072
D0GDR00Z0002
D0GDR00JA072
D0GDR00Z0002
D1HYR004A012
D1HYR004A012
D1HYR004A012
G1C220MA0445
D0GDR00JA072
D0GDR00Z0002
D0GDR00JA072
D0GDR00Z0002
“INDUCTOR , 120 OHM”
“INDUCTOR ,22UH”
“INDUCTOR ,22UH”
“INDUCTOR ,22UH”
“INDUCTOR ,22UH”
“INDUCTOR , 220 OHM”
“INDUCTOR , 220 OHM”
“INDUCTOR , 220 OHM”
“INDUCTOR , 220 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 220 OHM”
“INDUCTOR , 220 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
MT-GLAZE 75 JA 1/10W
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR , 120 OHM”
“INDUCTOR,0.22U J”
MT-GLAZE 0.000 ZA 1/10W
MT-GLAZE 0.000 ZA 1/10W
MT-GLAZE 0.000 ZA 1/10W
MT-GLAZE 0.000 ZA 1/10W
R-NETWORK 0X4 0.063W
R-NETWORK 0X4 0.063W
R-NETWORK 0X4 0.063W
“INDUCTOR ,22UH”
MT-GLAZE 0.000 ZA 1/10W
MT-GLAZE 0.000 ZA 1/10W
MT-GLAZE 0.000 ZA 1/10W
MT-GLAZE 0.000 ZA 1/10W
Q6329
Q6330
Q6331
Q6332
Q6700
Q6701
Q6720
TRANSISTORS
B1CHPD000006 TR CPH3338-T-TL-E
T2SC2859-Y—P TR 2SC2859-Y TE85L
B1ABCE000028 TR MMBTSC3928R
B1ABDF000013 TR 2SC3928A1R
B1ABDF000024 TR 2SC3928A1S
B1ABCE000028 TR MMBTSC3928R
B1ABDF000013 TR 2SC3928A1R
B1ABDF000024 TR 2SC3928A1S
B1ABCE000028 TR MMBTSC3928R
B1ABDF000013 TR 2SC3928A1R
B1ABDF000024 TR 2SC3928A1S
B1CHPD000006 TR CPH3338-T-TL-E
B1ABCE000028 TR MMBTSC3928R
Schematic
Location
Part No.
Description
Q6721
Q6730
Q6740
Q6741
Q6742
B1ABDF000013
B1ABDF000024
B1ABCE000028
B1ABDF000013
B1ABDF000024
B1CFRC000023
B1ABCE000028
B1ABDF000013
B1ABDF000024
B1ABCE000028
B1ABDF000013
B1ABDF000024
B1CFRC000023
TR 2SC3928A1R
TR 2SC3928A1S
TR MMBTSC3928R
TR 2SC3928A1R
TR 2SC3928A1S
TR MCH6437-P-TL-E
TR MMBTSC3928R
TR 2SC3928A1R
TR 2SC3928A1S
TR MMBTSC3928R
TR 2SC3928A1R
TR 2SC3928A1S
TR MCH6437-P-TL-E
R004
R005
R006
R007
R008
R5500
R5501
R5502
R5503
R5504
R5505
R5506
R5507
R5508
R5509
R5510
R5513
R5514
R5516
R5517
R5518
R5519
R5520
R5522
R5523
R5524
R5525
R5526
R5527
R5528
R5529
R5530
R5531
R5532
R5533
R5534
R5535
R5536
R5537
RESISTORS
D0GB101JA069
D0GB101JA069
D0GB101JA069
D0GBR00JA071
D0GBR00JA071
D0GB103JA072
D0GB103JA072
D0GBR00JA071
D0GBR00JA071
D0GBR00JA071
D0GB123ZA038
D0GB821ZA037
D0GB102JA071
D0GB123ZA038
D0GB472ZA038
D0GB472ZA038
D0GB820JA072
D0GB100JA072
D0GB101JA069
D0GB101JA069
D0GB101JA069
D0GB101JA069
D0GBR00JA071
D0GB102JA071
D0GB103JA072
D0GB391ZA037
D0GB472JA072
D0GB472JA072
D0GBR00JA071
D0GBR00JA071
D0GB333JA070
D0GB273JA072
D0GB333JA070
D0GB273JA072
D0GB333JA070
D0GB273JA072
D0GB333JA070
D0GB273JA072
D0GB333JA070
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
MT-GLAZE
100 JA 1/10W
100 JA 1/10W
100 JA 1/10W
0.000 ZA 1/10W
0.000 ZA 1/10W
10K JA 1/10W
10K JA 1/10W
0.000 ZA 1/10W
0.000 ZA 1/10W
0.000 ZA 1/10W
12K FA 1/10W
820 FA 1/10W
1K JA 1/10W
12K FA 1/10W
4.7K FA 1/10W
4.7K FA 1/10W
82 JA 1/10W
10 JA 1/10W
100 JA 1/10W
100 JA 1/10W
100 JA 1/10W
100 JA 1/10W
0.000 ZA 1/10W
1K JA 1/10W
10K JA 1/10W
390 FA 1/10W
4.7K JA 1/10W
4.7K JA 1/10W
0.000 ZA 1/10W
0.000 ZA 1/10W
33K JA 1/10W
27K JA 1/10W
33K JA 1/10W
27K JA 1/10W
33K JA 1/10W
27K JA 1/10W
33K JA 1/10W
27K JA 1/10W
33K JA 1/10W
– 11 –

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