SERVICE MANUAL 15” TV+DVD COMBO （MODEL：MVD1402） MODEL CHASSIS : MEMOREX MVD1402 : PHILIPS UOC TDA8377 + DS-C005B DOCUMENT : SM-05PM DATE : 05/05/2005 This manual is the latest at the time of print, and does not include the modification which may be made after the printing, by the constant improvement of product.
. CONTENTS 1. Safety precautions……………………………………………………………..……………3 2. TV block diagram……………………………………………………………………..…….4 3. Replacement of memory IC………………………………………………………….……5 4. Service adjustment……………………………………………………………..…………...5 5. ICs functional description…………………………………………………………………8 6. Test point waveform………………………………………………………………………10 7. All ICs voltages……………………………..……………………………………………….10 8. Purity / convergence adjustment………………………………………………………11 9.
. 1. SAFETY PRECAUTIONS 1. The design of this product contains special hardware, many circuits and components especially for safety purposes. For continued protection, no changes should be made to the original design unless authorized in writing by the manufacturer. Replacement parts must be identical to those used in the original circuits. Service should be performed by qualified personnel only. 9. 2. Alterations of the design or circuitry of the products should not be made.
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3. REPLACEMENT OF MEMORY IC 1. MEMORY IC. This TV uses memory IC. In the memory IC are memorized data for correctly operating the video and deflection circuits. 2. PROCEDURE FOR REPLACING MEMORY IC (1) Standby off Switch the power off and unplug the power cord from AC outlet. (2) Replace IC Be sure to use memory IC written with the initial data values. (3) Standby On Plug the power cord into the AC outlet and switch the power on.
Adjustable Items Direct access key “1” Items 5/6HSH Description Horizontal shift Preset ON Remark A “2” 5/6VSL 5/6VAM 5/6SCL 5/6VSH 5/6VOF HOF* Vertical slop Vertical amplitude S-correction Vertical shift OSD Vertical offset OSD Horizontal offset 21 45 20 38 38 20 A A A A A A “3” RED GRN WPR WPG WPB YDAV Black level offset R Black level offset G White point R White point G White point B Y-Delay for PAL 32 32 30 26 38 7 A A A A A “4” TOP VOL 9874 AVLT 32 36 18 1 A 9860 IFFS HDOL AGC VG2B
Optional data 1. OP1 Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Function Description Preset RESERVE AV2 Halftone RGB DVD Comb filter SVHS AV1 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable 0 1 1 0 1 0 0 1 Remark EA EA EA EA EA EA EA EA 2.
6. OP6 Bit Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Function Description Preset 0 1 1 1 1 0 0 1 RESERVE RESERVE SOFT CHANGE AV LISTEN INNER DVD ZOOM 9860 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable 1 = Enable Menu manner 1 = caption in top 0 = caption in bottom Note：Don’t adjust any OPTION items, please inform the engineer about any change. 5. ICs functional description 1. N501 UOC TDA9377 SYMBOL PIN STAND BY output.
CHROMA AUDOUT INSSW2 R2/VIN G2/YIN B2/UIN BCLIN BLKIN RO GO BO VDDA VPE VDDC OSCGND XTALIN XTALOUT RESET VDDP P1.0/INT1 P1.1/T0 P1.2/INT0 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 SVHS (C) input Audio output YUV insertion input R input / V (R-Y) input / PR input G input / Y input B input / U (B-Y) input / PB input Beam current limiter input Black current input Red output Green output Blue output Analog supply of Closed Caption decoder and digital supply of TV-processor (3.
6. Test point Waveforms 3.8Vpp 2.5Vpp 2.5Vpp H H H H TDA9370 PIN40 TDA9370 PIN53 95Vpp TDA9370 PIN52 0.9Vpp TDA9370 PIN51 5Vpp H H 2.6Vpp 1.2Vpp H TDA9370 PIN38 95Vpp 95Vpp H H CRT KG CRT KR H CRT KB 0.8Vpp 1Vpp TDA9370 PIN33 TDA9370 PIN34 1.3Vpp V V TDA9370 PIN21 TDA9370 PIN22 TDA9370 PIN59 7. IC voltages TDA9377 PIN V PIN V PIN V PIN V 1 0 17 4 33 0.5 49 1.9 2 3.8 18 0 34 0.3 50 5.0 3 3.6 19 4 35 0 51 2.4 4 3.3 20 0.5 36 1.7 52 2.4 5 3.5 21 0.7 37 2.4 53 2.4 6 4.
8. PURITY / CONVERGENCE ADJUSTMENT PURITY ADJUSTMENT WEDGE DEFLECTION YOKE 1. Demagnetize CRT with the demagnetizer. 2. Loosen the retainer screw of the deflection yoke. 3. Remove the wedges. 4. Input a green raster signal from the signal generator, and turn the screen to green raster. P CRT 5. Move the deflection yoke backward. 6. Bring the long lug of the purity magnets on the short lug and position them horizontally. (Fig2) 7.
STATIC CONVERGENCE ADJUSTMENT 1. Input a crosshatch signal. 2. Using 4-pole convergence magnets overlap the red and blue lines in the center of the screen (Fig. 1) and turn them to magenta (red/blue). (FRONT VIEW) 3. Using 6-pole convergence magnets overlap the magenta (red/blue) and green lines in the center of the screen and turn them to white. 4. Repeat 2 and 3 above, and make the best convergence. Fig. 1 (FRONT VIEW) DYNAMIC CONVERGENCE ADJUSTMENT RED 1.
9. DVD Part: Introduction of MTK1379 maintenance 1. 2. Under normal power supply conditions, the maintenance plan for MT1379 mono-chip is: first the reset circuit resets the MT1379, after the crystal oscillator circuit gave the clock signal to MT1379, MT1379 will start the initialization check for Flash、E2PROM、SDRAM, after everything is checked to be normal, it will start initialization check for 7Audio DAC, MT1336 and motor Driver. If the all the a.m.
10.
0094501126 harmonic filter 0094008684 CRT module 0094004185 PURE CRT 15' A36CPAA00X02 1 0090401302 GROUDING WIRE JE215-0C3014Q 1 0094500815 demagnetize winding 0090100297 HXC-38A SJ2824-87 ST5X25（φ20） 1 Screw 0090202438 CRT label 0090200038 wire tach 0090807949 packaging module 1 0090206948 back cover brand 1 0090506472 0094000213 packaging box 1 0090205727 plastic bag of manual 0094011254A remote cotroller 0090205728 plastic bag of TV 1 0090100027 nail 10 0090500018
LD01 0094401957 LED TOL-30mRGdEHa 1 A1001 0094004386 infrared receiver HS0038B 1 XZ03 0090401317 wiring harness 450mm 1 XZ05 0090402174 wiring harness 1 0094011764 controller PCB module 1 0094011767 machine inserting assembly 1 0091801880 PCB W01 0094101552 jumper wire φ0.58mm/10mm 1 W02 0094101552 jumper wire φ0.58mm/7.
N301C 0094401409 IC TDA8357J 1 N301D 0090600076 0094008041 ST3X10F SJ2831-87 C005B（32M） 1 1 V401B 0090600076 screw screw heat sink ST3X10F SJ2831-87 1 V401A 0090100017 triode QHS-30184A 1 V401 0094401644 heat sink TT2140 1 N801A 0090100661 IC QHS-30184A 1 N801C 0094401392 screw KA5Q0765RTH-YDTU 1 0090600076 IC ST3X10F SJ2831-87 1 0094400808 screw L7809CS 1 0090600076 heat sink ST3X10F SJ2831-87 1 N802A 0090100017 IC QHS-30184A 1 N601B 0094401684 heat sink
EY28 0090100008 rivet φ1.6*3.0 1 EY29 0090100008 rivet φ1.6*3.0 1 EY30 0090100008 rivet φ1.6*3.0 1 EY31 0090100008 rivet φ1.6*3.0 1 0090100008 rivet φ1.6*3.0 1 0090100008 rivet φ1.6*3.0 1 0090100008 rivet φ1.6*3.0 1 EY35 0090100008 rivet φ1.6*3.0 1 EY36 0090100008 rivet φ1.6*3.0 1 EY37 0090100008 rivet φ1.6*3.0 1 EY38 0090100008 rivet φ1.6*3.0 1 EY39 0090100008 rivet φ1.6*3.0 1 0090100008 rivet φ1.6*3.0 1 0090100008 rivet φ1.6*3.
R315 0094101552 jumper wire φ0.58mm/5mm------B 1 W226 0094101552 jumper wire φ0.58mm/5mm------B 1 W228 0094101552 jumper wire φ0.58mm/5mm------B 1 W245 0094101552 jumper wire φ0.58mm/5mm------B 1 0094101552 jumper wire φ0.58mm/5mm------B 1 0094101552 jumper wire φ0.58mm/5mm------B 1 0094101552 jumper wire φ0.58mm/5mm------B 1 W603 0094101552 jumper wire φ0.58mm/5mm------B 1 W607 0094101552 jumper wire φ0.58mm/5mm------B 1 W608 0094101552 jumper wire φ0.
W200 0094101552 jumper wire φ0.58mm/7.5mm------B 1 W201 0094101552 jumper wire φ0.58mm/7.5mm------B 1 W216 0094101552 jumper wire φ0.58mm/7.5mm------B 1 W233 0094101552 jumper wire φ0.58mm/7.5mm------B 1 0094101552 jumper wire φ0.58mm/7.5mm------B 1 0094101552 jumper wire φ0.58mm/7.5mm------B 1 0094101552 jumper wire φ0.58mm/7.5mm------B 1 W267 0094101552 jumper wire φ0.58mm/7.5mm------B 1 W282 0094101552 jumper wire φ0.58mm/7.
R713 0094101552 jumper wire φ0.58mm/7.5mm------B 1 R719 0094101552 jumper wire φ0.58mm/7.5mm------B 1 W707 0094101552 jumper wire φ0.58mm/7.5mm------B 1 L701 0094101552 jumper wire φ0.58mm/7.5mm------B 1 0094101552 jumper wire φ0.58mm/7.5mm------B 1 0094101552 jumper wire φ0.58mm/7.5mm------B 1 0094101552 jumper wire φ0.58mm/8.5mm------B 1 W612 0094101552 jumper wire φ0.58mm/9mm------B 1 W102 0094101552 jumper wire φ0.
W231 0094101552 jumper wire φ0.58mm/12.5mm------B 1 W203 0094101552 jumper wire φ0.58mm/12.5mm------B 1 W406 0094101552 jumper wire φ0.58mm/12.5mm------B 1 W409 0094101552 jumper wire φ0.58mm/12.5mm------B 1 0094101552 jumper wire φ0.58mm/12.5mm------B 1 0094101552 jumper wire φ0.58mm/12.5mm------B 1 0094101552 jumper wire φ0.58mm/12.5mm------B 1 W982 0094101552 jumper wire φ0.58mm/12.5mm------B 1 R417 0094101552 jumper wire φ0.58mm/12.
WSC3 0094100067 carbon film resistor RT13-1/6W-75-J-T52 1 RS01 0094100067 carbon film resistor RT13-1/6W-75-J-T52 1 RS02 0094100017 carbon film resistor RT13-1/6W-100-J-T52 1 R208 0094100017 carbon film resistor RT13-1/6W-100-J-T52 1 0094100017 carbon film resistor RT13-1/6W-100-J-T52 1 0094100017 carbon film resistor RT13-1/6W-100-J-T52 1 0094100017 carbon film resistor RT13-1/6W-100-J-T52 1 R235 0094100017 carbon film resistor RT13-1/6W-100-J-T52 1 R236 0094100017 ca
R215 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 R266 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 R247 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 R220 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 0094101328 carbon film resistor RT13-1/6W-3.3K-J-T52 1 R746 0094101328 carbon film resistor RT13-1/6W-3.
W610 0094100038 carbon film resistor RT13-1/6W-56K-J------T 1 R275 0094100943 carbon film resistor RT13-1/6W-270K-J------T 1 R273 0094100036 carbon film resistor RT13-1/6W-33K-J------T 1 R621 0094100036 carbon film resistor RT13-1/6W-33K-J------T 1 0094100036 carbon film resistor RT13-1/6W-33K-J------T 1 R233 R261 0094100767 0094100039 RT13-1/6W-36KΩ-J RT13-1/6W-68K-J------T 1 1 R277 0094100077 carbon film resistor carbon film resistor carbon film resistor RT13-1/6W-100K-J----
C218 0094200760 ceramic capacitor CT1-B-63V-2200pF-K-F05 1 C249 0094200715 ceramic capacitor CC1-CH-63V-150PF-J-F05 1 C232 0094202373 ceramic capacitor CC1-CH-63V-330PF-J-F05 1 C231 0094200981 ceramic capacitor CT1-B-63V-1000pF-K-F05 1 0094200981 ceramic capacitor CT1-B-63V-1000pF-K-F05 1 0094200981 ceramic capacitor CT1-B-63V-1000pF-K-F05 1 0094201178 ceramic capacitor CT1-B-63V-3300PF-K-F05 1 C221 0094201039 ceramic capacitor CT1-B-63V-4700PF-K-F05 1 C603 0094201039
C246 0094200008 Al ELECTROLYTIC CAPACITOR CD110X-16V-10µF-M-F05 1 C250 0094200008 Al ELECTROLYTIC CAPACITOR CD110X-16V-10µF-M-F05 1 C842 0094200008 Al ELECTROLYTIC CAPACITOR CD110X-16V-10µF-M-F05 1 C107 0094200008 Al ELECTROLYTIC CAPACITOR CD110X-16V-10µF-M-F05 1 0094200988 Al ELECTROLYTIC CAPACITOR CD110X-16V-47µF-M-F05 1 0094200988 Al ELECTROLYTIC CAPACITOR CD110X-16V-47µF-M-F05 1 0094200988 Al ELECTROLYTIC CAPACITOR CD110X-16V-47µF-M-F05 1 C620 0094200747 Al ELECTROLYTIC
VD809 0094400049 diode 1N4148------T 1 VD816 0094400049 diode 1N4148------T 1 VD817 0094400049 diode 1N4148------T 1 DZ831 0094400049 diode 1N4148------T 1 0094400049 diode 1N4148------T 1 0094400049 diode 1N4148------T 1 0094400053 diode TC2406------T 1 VD401 0094400473 diode 1N4004-T52 1 VD402 0094400473 diode 1N4004-T52 1 L209 0094400473 diode 1N4004-T52 1 VD804 0094400052 diode TB1206------T 1 VD403 0094400053 diode TC2406------T 1 0094400055 dio
V620 0094400203 triode KSA539-YTA------F 1 V622 0094400203 triode KSA539-YTA------F 1 V402 0094400072 triode KSC2331-YTA------F 1 V206 0094400192 triode KSC815-YTA------F 1 0094400192 triode KSC815-YTA------F 1 0094400192 triode KSC815-YTA------F 1 0094400192 triode KSC815-YTA------F 1 V621 0094400192 triode KSC815-YTA------F 1 V801 0094400192 triode KSC815-YTA------F 1 V802 0094400192 triode KSC815-YTA------F 1 V803 0094400192 triode KSC815-YTA------F 1 V
C410 0094200958 ceramic capacitor CT1-R-2Kv-330Pf-K-07-A 1 C805 0094201071 thin film capacitor CT1-B-1kV-1000pF-K-07-A 1 C216 0094201463 thin film capacitor CL21X-63V-224-J------F 1 C414 0094200098 thin film capacitor CL21X-400V-104-J-07-A-A 1 0094200099 thin film capacitor CBB13-50V-104-J-07-A-A 1 C416 C409 0094200101 0094201023 CBB21-400V-364-J-20-G-A CBB81-1.
V999 0094300007 tuner CRT plug seat GZS10-2-BD 1 CN801 0094300193 plug seat TJC1-3A 1 CN802 0094300063 plug seat TJC2-2A 1 CN203 0094300092 plug seat TJC3-2A 1 CN601 0094300092 plug seat TJC3-2A 1 0094300092 plug seat TJC3-2A 1 0094300111 plug seat TJC3-3A 1 0094300012 plug seat TJC3-3A 1 CN211 0094300012 plug seat TJC3-3A 1 CN210 0094300104 plug seat TJC3-5A 1 CN503 0094300104 plug seat TJC3-5A 1 CN401 0094300307 plug seat TJC1-4A 1 CN809 0094300104
2 TJC3-2Y SW201 1 15 16 R226 15K C222 1u R831 4 2 10K R832 10K 18 C223 104 C224 2.2u R830 3.3K 2 78R05 3 222 21 22 C226 222 23 24 JA702 CN706 R228 39K 25 C227 104 26 27 C228 223 28 C229 223 29 L203 L205 L204 1uH 1uH 1uH C230 10u 30 R229 3.9K C231 102 31 C232 331 DVD-AR A3-15.8V C233 4.7 VD-P DVD-5V VD-N Y EW-DRI BLK.IN PH2.LF BCL.IN 50 C250 PH1.LF B2/U.IN GND3 G2/Y.IN V.DRB V.BRA GND1 I.REF CVPS.INT V.S.C. VP1 AGC R242 1K 10K C509 4.
