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Sharp 25C340, Service Manual

The Sharp 25C340 Service Manual is a comprehensive user guide for this high-performance product. Easily download the manual for free from our website, ensuring you have all the information necessary to optimize your experience with the Sharp 25C340.

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Ref. No. Part No. 

«

 Description Code

R2064 VRD-RA2BE391JY X 390 1/8W Carbon AA
R2065 VRS-CY1JF000JY X 00 1/16W M-Ox. AA
R2067 VRS-CY1JF103JY X 10k 1/16W M-Ox. AA
R2068 VRS-CY1JF103JY X 10k 1/16W M-Ox. AA
R2069 VRD-RA2BE102JY X 1k 1/8W Carbon AA
R2070 VRS-CY1JF103JY X 10k 1/16W M-Ox. AA
R2072 VRS-CY1JF103JY X 10k 1/16W M-Ox. AA
R2101 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R2102 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R2201 VRS-CY1JF103JY X 10k 1/16W M-Ox. AA
R2202 VRS-CY1JF473JY X 47k 1/16W M-Ox. AA
R2203 VRS-CY1JF332JY X 3.3k 1/16W M-Ox. AA
R2211 VRS-CY1JF222JY X 2.2k 1/16W M-Ox. AA
R2212 VRS-CY1JF682JY X 6.8k 1/16W M-Ox. AA
R2213 VRS-CY1JF223JY X 22k 1/16W M-Ox. AA
R2401 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R2402 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R2403 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R2404 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R2501 VRD-RA2BE123JY X 12k 1/8W Carbon AA
R2503 VRS-CY1JF273JY X 27k 1/16W M-Ox. AA
R2504 VRS-CY1JF123JY X 12k 1/16W M-Ox. AA
R2505 VRS-CY1JF563JY X 56k 1/16W M-Ox. AA
R2506 VRS-CY1JF563JY X 56k 1/16W M-Ox. AA
R2507 VRS-CY1JF823JY X 82k 1/16W M-Ox. AA
R2508 VRS-CY1JF153JY X 15k 1/16W M-Ox. AA
R2509 VRS-CY1JF272JY X 2.7k 1/16W M-Ox. AA
R2601 VRD-RA2BE100JY X 10 1/8W Carbon AA
R2602 VRS-CY1JF000JY X 00 1/16W M-Ox. AA
R2604 VRS-CY1JF000JY X 00 1/16W M-Ox. AA
R2605 VRS-CY1JF000JY X 00 1/16W M-Ox. AA
R3001 VRD-RA2BE221JY X 220 1/8W Carbon AA
R3002 VRD-RA2BE221JY X 220 1/8W Carbon AA
R3003 VRS-CY1JF105JY X 1M 1/16W M-Ox. AA
R3004 VRS-CY1JF104JY X 100k 1/16W M-Ox. AA
R3005 VRS-CY1JF623JY X 62k 1/16W M-Ox. AA
R3007 VRS-CY1JF332JY X 3.3k 1/16W M-Ox. AA
R3008 VRS-CY1JF302JY X 3k 1/16W M-Ox. AA
R3010 VRS-CY1JF392JY X 3.9k 1/16W M-Ox. AA
R3011 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R3012 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R3013 VRD-RA2BE101JY X 100 1/8W Carbon AA
R3014 VRD-RA2BE101JY X 100 1/8W Carbon AA
R3373 VRS-CY1JF000JY X 00 1/16W M-Ox. AA
R3374 VRS-CY1JF103JY X 10k 1/16W M-Ox. AA
R3375 VRS-CY1JF000JY X 00 1/16W M-Ox. AA
R3377 VRD-RA2BE822JY X 8.2k 1/8W Carbon AA
R3378 VRD-RA2BE223JY X 22k 1/8W Carbon AA
R3379 VRS-CY1JF683JY X 68k 1/16W M-Ox. AA
R3501 VRS-CY1JF750JY X 75 1/16W M-Ox. AA
R3502 VRS-CY1JF104JY X 100k 1/16W M-Ox. AA
R3503 VRS-CY1JF104JY X 100k 1/16W M-Ox. AA
R3504 VRS-CY1JF101JY X 100 1/16W M-Ox. AA
R3507 VRS-CY1JF102JY X 1k 1/16W M-Ox. AA
R3508 VRS-CY1JF102JY X 1k 1/16W M-Ox. AA

S2501 QSW-K0 X Switch, AB
S2502 QSW-K0 X Switch, AB
S2503 QSW-K0 X Switch, AB
S2504 QSW-K0 X Switch, AB
S2505 QSW-K0 X Switch, AB
S2506 QSW-K0 X Switch, AB

PWB-B: DUNTK9510WEV1

CRT Unit

RESISTORS

[M-Ox.··· Metal Oxide, M-Film ··· Metal Film]

Ref. No. Part No. 

«

 Description Code

RY701 RRLYJ0081CEZZ X Relay AD
F701

QFS-B4023CEZZ

X FUSE - 4A 125V

AB

FB601

RBLN-0047CEZZY

X FERRITE BEAD

AB

FH701

QFSHD1

X FUSE CLIP

AB

FH702 QFSHD1 X FUSE CLIP AB
FB2002

RBLN-0037CEZZY

X FERRITE BEAD

AB

J1401 QJAKG0074CEZZ X Front A/V Jack AC
J1404

QSOCD0430CEZZ

X S-Video terminal

AC

J1701

QTANJ0340CEZZ

X Rear A/V Terminal

AD

P303

QPLGN0461CEZZA

X Plug,

 4pin(S1-4)

AB

P401

QPLGN0561CEZZA

X Plug, 5Pin(KA)

AB

P601

QPLGN0160FJZZ

X Plug,

5pin(K1-5)

AB

P651

QPLGN0361CEZZA

X Plug,

3pin

(TP651-3) AB

P701

QPLGN0260CEZZ

X Plug,

2pin

(M1-2)

AB

P751

QPLGN0461CEZZA

X Plug,

 4pin(S1-4)

AB

P2001

QPLGN0561CEZZA

X Plug, 5Pin(KA)

AB

RMC2601 RRMCU0222CEZZ

X R/C RECEIVER

AD

RDA501

PRDAR0280PEFW

X Heat Sink, for IC501

AC

RDA604

PRDAR0233PEFW

X Heat Sink, for Q602

AD

RDA701

PRDAR0265PEFW

X Heat Sink, for Q701

AB

TLABM0002GJZZ

X Model Label

AB

LX-BZ3049GEFD

X Screw

AA

LX-BZ3100CEFD

X Screw

AA

LX-TZ3004CEFD

X Screw

AA

Q851 VS2SC3198-G-1+ X 2SC3198-G AB
Q852 VS2SC3789//2E X 2SC3789 AB
Q853 VS2SC3198-G-1+ X 2SC3198-G AB
Q854 VS2SC3789//2E X 2SC3789 AB
Q855 VS2SC3198-G-1+ X 2SC3198-G AB
Q856 VS2SC3789//2E X 2SC3789 AB
Q881 VS2SA1266-Y-1+ X 2SA1266(Y) AB

L851 VP-MK8 X Peaking 82mH AB

C851 VCCSPA X 390p 50V Ceramic AB
C852 VCCSPA X 330p 50V Ceramic AB
C853 VCCSPA X 390p 50V Ceramic AB
C854 RC-KZ0024CEZZ X 1000p 2kV M.Poly. AB
C883 VCEA0A X 10 50V EL. AB

R851 VRD-RA2BE470JY X 47 1/8W Carbon AA
R852 VRD-RA2BE181JY X 180 1/8W Carbon AA
R853 VRD-RA2BE121JY X 120 1/8W Carbon AA
R855 VRD-RA2BE471JY X 470 1/8W Carbon AA
R856 VRD-RA2BE221JY X 220 1/8W Carbon AA
R857 VRS-VV3LB123J X 12k 3W M-Ox. AB
R858 VRD-RM2HD222JY X 2.2k 1/2W Carbon AA
R859 VRD-RA2BE470JY X 47 1/8W Carbon AA
R860 VRD-RA2BE181JY X 180 1/8W Carbon AA
R861 VRD-RA2BE121JY X 120 1/8W Carbon AA
R863 VRD-RA2BE471JY X 470 1/8W Carbon AA
R864 VRD-RA2BE221JY X 220 1/8W Carbon AA
R865 VRS-VV3LB123J X 12k 3W M-Ox. AB
R866 VRD-RM2HD222JY X 2.2k 1/2W Carbon AA
R867 VRD-RA2BE470JY X 47 1/8W Carbon AA
R868 VRD-RA2BE181JY X 180 1/8W Carbon AA

RESISTORS

[M-Ox.··· Metal Oxide, M-Film ··· Metal Film]

CAPACITORS

 [EL.··· Electrolytic, M-Poly.··· Metalized Polypro Film]

SWITCHES

MISCELLANEOUS PARTS

PWB-A: DUNTKA462WEA2

MAIN UNIT

TRANSISTORS

COIL

25C340

26

Summary of Contents for 25C340

Page 1: ...s are subject to change without notice CONTENTS MODEL ELECTRICAL SPECIFICATIONS POWER INPUT 120 V AC 60 Hz POWER RATING 105 W PICTURE SIZE 2 032cm2 315sq inch CONVERGENCE Magnetic SWEEP DEFLECTION Magnetic FOCUS Hi Bi Potential Electrostatic INTERMEDIATE FREQUENCIES Picture IF Carrier Frequency 45 75 MHz Sound IF Carrier Frequency 41 25 MHz Color Sub Carrier Frequency 42 17 MHz Nominal AUDIO POWER...

Page 2: ...igh voltage anode completely X RADIATION AND HIGH VOLTAGE LIMITS 1 Be sure all service personnel are aware of the procedures and instructions covering X radiation The only potential source of X ray in current solid state TV receivers is the picture tube However the picture tube does not emit measurable X Ray radiation if the high voltage is as specified in the High Voltage Check instructions It is...

Page 3: ...ks mechanical insulators etc 3 To be sure that no shock hazard exists check for leakage current in the following manner Plug the AC cord directly into a 120 volt AC outlet Do not use an isolation transformer for this test Using two clip leads connect a 1 5k ohm 10 watt resistor paralleled by a 0 15µF capacitor in series with all exposed metal cabinet parts and a known earth ground such as electric...

Page 4: ...nding on the strength of lighting used The degree of illumination will decrease with time and depending on the temperature The time needed to charge the phosphorescent display will vary depending on the surrounding lighting Sunlight and fluorescent lighting are the most effective when charging the display POWER Press On Press again Off REMOTE KEYPAD Accesses any channel from keypad FLASHBACK Retur...

Page 5: ...tion of the horizontal oscillator does not stop in step 5 the circuit must be repaired before the set is returned to the customer HIGH VOLTAGE CHECK High voltage is not adjustable but must be checked to verify that the receiver is operating within safe and efficient design limitations as specified checks should be as follows 1 Connect an accurate high voltage meter between ground and anode of pict...

Page 6: ...ideo adjustment menu to ensure customer control are in their proper reset position 2 Service number selection In the service mode you will see the window screen as window 1 There are 4 adjustment categories 2DEF 3SIGNAL 4FEATURE 5FIX VALUE as show in Figure A Press CH UP DOWN button for selection and enter by VOL UP or VOL DOWN Press CH UP DOWN button to select the adjustment item and VOL UP DOWN ...

Page 7: ... SYS 00 07 01 01 F17 KILLER OP 00 07 02 02 F18 PRE SHOOT 00 03 00 00 F19 CORING 00 03 04 04 F20 DC REST 00 03 02 02 F21 BS START 00 03 01 01 F22 BS GAIN 00 03 01 01 F23 ABL START 00 07 00 00 F24 R B ANGLE 00 0F 08 08 F25 H BLK R 00 0F 03 03 F26 H BLK L 00 0F 00 00 F27 YC 00 07 05 04 SERVICE POSITION ADJUST ITEM DATA RANGE INITIAL VALUE Hex Table A Below are the ranges and initial values for each a...

Page 8: ...EL 00 07 03 S03 Y MUTE 00 03 00 01 Y MUTE 02 V STOP Y MUTE 03 Activate color killer circuit S04 SUB BIAS 00 FF 30 Must be 30 S05 R BIAS 00 FF 00 S06 G BIAS 00 FF 00 S07 B BIAS 00 7F 00 S08 R DRIVE 00 7F 53 S09 B DRIVE 00 7F 53 S10 CONTRAST 00 7F 5A S11 TINT 00 7F 40 S12 COLOR 00 7F 40 S13 BRIGHTNESS 00 7F 40 S14 BRIGHTNESS 2 00 7F 40 SERVICE POSITION ADJUST ITEM DATA RANGE INITIAL VALUE ADJUSTMENT...

Page 9: ...evel 00 2 35 Vdc GND 4 Select the service adjustment S03 and set the data value to 01 to turn off the luminance signal Y mute 5 Select the service adjustment S14 and adjust the data value to obtain 2 35 volts as shown in Figure B 6 Adjust the master screen control until the raster darkens to the point where raster is barely seen 7 Adjust the service adjustment S05 red S06 green S07 blue to obtain ...

Page 10: ...ain for fine adjustment Vertical Size V Linearity and V S Correction Adjustments 1 Receive a good local channel 2 Enter the service mode DEF category and select the adjustment D02 for Vertical Size D05 for V Linearity and D06 for V S Correction Adjustment 3 Set in order D05 for V Linearity D06 for V S Correction and set the data to get the best linearity 4 Then adjust D02 data until it become a pr...

Page 11: ...11 6 5 4 3 2 1 A B C D E F G H 25C340 CHASSIS LAYOUT PWB A PWB B ...

Page 12: ...12 6 5 4 3 2 1 A B C D E F G H 25C340 BLOCK DIAGRAM ...

Page 13: ...normal picture unless otherwise indicated 2 All voltages measured with 1000µ V B W or Color signal WAVEFORM MEASUREMENT CONDITIONS 1 Photographs taken on a standard gated color bar signal the tint setting adjusted for proper color The wave shapes at the red green and blue cathodes of the picture tube depend on the tint color level and picture control 2 indicates waveform check points See chart wav...

Page 14: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 1 Unit 25C340 14 ...

Page 15: ...17 16 15 14 13 12 11 10 18 19 25C340 15 ...

Page 16: ...8 7 10 9 6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM MAIN 1 Unit 25C340 16 ...

Page 17: ...17 16 19 18 15 14 13 12 11 10 25C340 17 ...

Page 18: ...6 5 4 3 2 1 A B C D E F G H SCHEMATIC DIAGRAM CRT Unit 25C340 18 ...

Page 19: ...19 6 5 4 3 2 1 A B C D E F G H 25C340 PRINTED WIRING BOARD ASSEMBLIES PWB B CRT Unit Wiring Side ...

Page 20: ...20 6 5 4 3 2 1 A B C D E F G H 25C340 PWB A MAIN Unit Wiring Side ...

Page 21: ...6 5 4 3 2 1 A B C D E F G H 25C340 PWB A MAIN Unit Chip Parts Side 21 ...

Page 22: ...C1403 VHIM52055FP 1Y X M52055FP AD IC2001 RH IX3528CEZZQ X IX3528CE AN IC2040 VHIPST994C 1 X PST994C AB IC2101 VHIBR24L16F 1Y X BR24L16F AC IC3001 VHICXA2194Q 1Y X CXA2194Q AP IC3371 VHIAN7511 1 X AN7511 AC Q101 VS2SC3198 G 1 X 2SC3198 G AB Q201 VS2SC2735 1EY X 2SC2735 AB Q301 VS2SD601AR 1Y X 2SD601AR AB Q401 VS2SD601AR 1Y X 2SD601AR AB Q451 VS2SB709AR 1Y X 2SB709AR AB Q452 VS2SA1266 Y 1 X 2SA1266...

Page 23: ...414 VCEA0A1HW225M X 2 2 50V EL AB C416 VCEA0A1HW105M X 1 50V EL AB C451 VCQYTA1HM104J X 0 1 50V Mylar AB C454 VCEA0A1HW475M X 4 7 50V EL AB C456 VCEA0A1HW106M X 10 50V EL AB C491 VCEA0A1CW107M X 100 16V EL AB C492 VCKYCY1HF103ZY X 0 01 50V Ceramic AA C510 VCEA0A1VW477M X 470 35V EL AB C511 VCCSPA2HL180K X 18p 500V Ceramic AB C512 VCFYSA1JB224J X 0 22 63V Mylar AB C513 VCFYSA1JB473J X 0 047 63V Myl...

Page 24: ...0 1 16W M Ox AA RJ4 VRS CY1JF000JY X 00 1 16W M Ox AA RJ5 VRS CY1JF000JY X 00 1 16W M Ox AA RJ6 VRS CY1JF000JY X 00 1 16W M Ox AA RJ10 VRS CY1JF000JY X 00 1 16W M Ox AA RJ11 VRS CY1JF000JY X 00 1 16W M Ox AA RJ14 VRS CY1JF000JY X 00 1 16W M Ox AA RJ15 VRS CY1JF000JY X 00 1 16W M Ox AA RJ16 VRS CY1JF000JY X 00 1 16W M Ox AA RJ17 VRS CY1JF000JY X 00 1 16W M Ox AA U R53 VRS RG3LB223J X 22k 3W M Ox AB...

Page 25: ...RS CY1JF562JY X 5 6k 1 16W M Ox AA R747 VRS CY1JF682JY X 6 8k 1 16W M Ox AA R752 VRD RA2BE392JY X 3 9k 1 8W Carbon AA U R758 VRS RG2HC100J X 10 1 2W M Ox AB R762 VRS CY1JF103JY X 10k 1 16W M Ox AA U R773 VRS RG3LB270J X 27 3W M Ox AB U R774 VRS RG3LB680J X 68 3W M Ox AB R801 VRD RM2HD470JY X 47 1 2W Carbon AA R807 VRS CY1JF332JY X 3 3k 1 16W M Ox AA R808 VRS CY1JF272JY X 2 7k 1 16W M Ox AA R809 VR...

Page 26: ...S2501 QSW K0202PEZZ X Switch AB S2502 QSW K0202PEZZ X Switch AB S2503 QSW K0202PEZZ X Switch AB S2504 QSW K0202PEZZ X Switch AB S2505 QSW K0202PEZZ X Switch AB S2506 QSW K0202PEZZ X Switch AB PWB B DUNTK9510WEV1 CRT Unit RESISTORS M Ox Metal Oxide M Film Metal Film Ref No Part No Description Code RY701 RRLYJ0081CEZZ X Relay AD F701 QFS B4023CEZZ X FUSE 4A 125V AB FB601 RBLN 0047CEZZY X FERRITE BEA...

Page 27: ...10GJ00 X Himeron 550X7 AB PSPAN0103GJZZ X Spacer for cabinet AB QCNW 0134MEZZ X WIRE SPEAKER AB QCNW 0166MEZZ X WIRE GBN AB QCNW 0167MEZZ X WIRE YBN AB TCAUH3045GJZZ X caution card AB TLABN0101GJZZ X VSP0080PBQ4YA X speaker VSP0080PBQ4YA X speaker XTASD30P12000 X XTASD40P20000 X Screw Cab AA Screw BTN AA AE AE Remark label chassis ID AB PWB B DUNTK9510WEV1 CRT Unit RESISTORS M Ox Metal Oxide M Fil...

Page 28: ...lacement items FRONT Buffer Material Polyethylene Sheet Polyethylene Bag Operation Manual Infrared R C Unit Batteries REAR Use tape to fix the top side of packing case Use 12 staples to fix the bottom side of packing case Bar Code Label 25C340 28 ...

Page 29: ...ans electronic mechanical photocopying recording or otherwise without prior written permission of the publisher QRC0021 U April 2004 Modify SEMEX J B Design and Production Information Design SEM Production SEMEX 25C340 SHARP ELECTRONICA MEXICO S A DE C V Quality Reliability Control Center Blvd SHARP No 3510 Parque Industrial Rosarito Playas de Rosarito México B C 22710 ...

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