HT-DP2500 SERVICE MANUAL No. S7859HTDP2500 HT-DP2500 Manufactured under license from Dolby Laboratories Licensing Corporation. DOLBY, the double-D symbol and "PRO LOGIC" are trademarks of Dolby Laboratories Licensing Corporation. • In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified should be used. CONTENTS Page IMPORTANT SERVICE NOTES ............................................................................................
HT-DP2500 FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL. IMPORTANT SERVICE NOTES BEFORE RETURNING THE AUDIO PRODUCT (Fire & Shock Hazard) Before returning the audio product to the user, perform the following safety checks. 1. Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the audio product. 2.
HT-DP2500 NAMES OF PARTS HT-DP2500 1. Power Switch 2. Remote Control Sensor 3. Stand-by Indicator 4. Timer Indicator 5. Display Panel 6. Dolby Pro Logic Button 7. Eqalizer Button 8. Extra Bass Button: X-BASS 9. Volume Conrol 10. Headphones Socket 11. VCR-1 Button 12. VCR-2 Button 13. Aux Button 14. Tuner (Band) Button 15. Tuning Down Button 16. Tuning Up Button 17. Memory Button 18. Timer/ Sleep Button 19. Jog Dial 20. Enter Button 21.
HT-DP2500 CP-F2500 CP-C2500 1. Tweeter 2. Woofer 3. Speaker Cord 1. Woofer 2. Speaker Cord 1 1 2 2 3 CP-SR2500 CP-SW2500 1. Woofer 2. Speaker Cord 1. Woofer 2. Bass Reflex Duct 3. Speaker Cord 1 1 2 3 2 REMOTE CONTROL Notes concerning use: Replace the batteries if the operating distance is reduced or if the operation becomes erratic. Periodically clean the transmitter LED on the remote control and the sensor on the main unit with a soft cloth.
HT-DP2500 DISASSEMBLY Caution on Disassembly Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure excellent performance: 1. Take cassette tape and compact disc out of the unit. 2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit. 3. Take off nylon bands or wire holders where they need be removed when disassembling the unit.
HT-DP2500 CP-F2500 CP-C2500 (A1)x1 (A1)x1 (A2)x4 ø4x13mm (A2)x2 ø4x13mm (A2)x4 ø4x13mm Screw Driver Screw Driver Figure 6-1 Figure 6-3 CP-SW2500 CP-SR2500 (A2)x4 ø4x13mm (A1)x1 (A2)x4 ø4x13mm (A1)x1 Screw Driver Screw Driver Figure 6-2 Figure 6-4 –6–
HT-DP2500 ADJUSTMENT • Setting the Test Mode Keeping the ENTER button and MEMORY button pressed, turn on POWER (of Main Set). Then, the frequency is initially set in the memory as shown in Table. Call it with the JOG to use it for adjustment and check of tuner circuit. TUNER SECTION fL: Low-range frequency fH: High-renge frequency • FM RF Signal generator: 1 kHz, 75 kHz dev., FM modulated Test Stage Frequency Frequency Display Setting/ Adjusting Parts Band Coverage — (fL): L202 3.4 ± 0.
HT-DP2500 EXPLANATION OF AUTOMATIC SOUND VALUE CORRECTION CONTROL 1. Outline The recent trend is toward rise of CD record level in the world, for example rock, dancing music, etc. In case of continuous high level playback G-EQ (graphic equalizer) and VOL (Volume) are controlled (lowered) automatically after a lapse of specific time (10 minutes) so as to get the easy-to-listen sound level. 2. Explanation of operation The CD playback operation is explained below.
HT-DP2500 NOTES ON SCHEMATIC DIAGRAM • Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type. • Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad.
HT-DP2500 +B3 IN AM OSC 24 23 FM IF AMP Q201 FMOSC CF202 4 3 REQ 22 8 5 AM IF GND IC203 LA1833 FM/AM IF+MPX 6 7 21 9 17 FM VCC DET IF OUT 10 P13 AM OSC T201 76 13 14 P14 77 L R 78 79 MPX VCO CUT AM RF AM ANT 80 81 82 XT21 FM +B A+12V 20 15 16 22 85 86 87 IF IN +B3 88 89 FM IN AMIN 1 84 +B3 VOLTAGE REGURATER A+12V T203 VT 83 SD STEREO X352 4.
HT-DP2500 AY FAN PROTECT 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 53 52 51 2G 45 POW-SW 44 FA-RLAY 43 85 ADPD 86 AC3-RES SW-MUTE 42 C-MUTE 41 R-MUTE 40 IC1 IX0001SJ SYSTEM MICROCOMPUTER 87 AC3-SS 88 AC3-SI 89 D-SEL 90 AC3-SCK 91 SW-ON 92 PRO-ENA F-MUTE 39 JOG DOWN 38 JOG UP 37 REMOCON 36 AC3-SO SYS-STOP POWER V-DATA 93 PRO-DI 94 PRO-CK µ-COM+5V 32 MODEL POSISTER SP-LEVEL AREA KEY3 KEY2 KEY1 VREF MMOD XO XI VSS FS-CK 29 FS-DATA 28 REMOCON FS-STB 27 RESET 26
HT-DP2500 A+12V C504 1/50 R514 1K C506 1/50 R516 1K C508 1/50 R518 1K C510 1/50 R520 1K C516 1/50 D502 1N4148 D422 1N4148 C437 47/16 4 5 R475 0V 4.3V 0V CLK DATA ENABLE S IN R-IN L-IN 4.7V 4.7V 4.6V 4.7V 2.6V 2 4V 2.4V C525 0.039 4.6V LF4C1 LF3C3 LF3C2 LF3C1 1 RINVIN1 1 RSELO RTIN 1 2 3 4 5 6 7 8 C520 0.47/50 C526 0.039 NOTES ON SCHEMATIC DIAGRAM can be found on page 9. 3 4.3V 4.
F–MUTE H/P–SW R–MUTE SW–MUTE C–MUTE H.P MUTE V–DATA V–LATCH +B V–CK V–MUTE PRO–CK R475 1K SP–LEVEL P14 6-H A+12V A–GND +B C474 3300P –B R471 100K R472 100K R469 100K R470 100K C583 47P C587 10/16 R588 3.9K Q532 2SC2878B 7 8 6 5 5 5 5 4 4 4 3 3 3 2 2 2 1 1 1 CNP581 1 CNS581 0V 2 IC581 NJM4558D C584 47P 19 20 R589 27K 0V 3 C586 0.022 R586 1K R553 4.7K R591 100 R592 100 HEADPHONES PWB-C4 C588 10/16 C570 47/16 +B C569 47/16 +B D451 1N4004 R582 2.
HT-DP2500 Q705 KTC3199GR –2.9V 11 IC702 LM2876 C716 0.022 2 3 4 5 6 0V -2.9V 5 0V -2.9V 2.9V R730 56K Q756 0V KTC3199GR C749 47/50 R760 4.7 0V Q775 KTC3199GR 5.0V 0V Q776 KTC3199GR 0V 3 4 5 0V -2.9V 2.9V R788 2.2K R797 22 25V R796 22 C790 0.1 5.0V 0V R798 56K 0V Q785 KTC3199GR 5.0V 0V Q786 KTC3199GR 0V C789 47/50 R787 0.2 Q781 R791 Q782 KRC107M KRA107M 39K MUTE ON' ( ) 2 3 2 3 2.9V 0V –3.2V R794 (0V) (3.4V) (–0.4V) 100K C785 1 0V 2.9V 1 22/50 (0V) (0.9V) R792 C791 0.1 R795 4.
HT-DP2500 R739 5.6K D632 1N4148 22K R736 18K C639 10/50 D631 1N4148 SP-L-CH 2 SP-L-CH-GND 3 SP-R-CH-GND 4 SP-R-CH 5 SP-SUB WOOFER 6 SP-SUB WOOFER-GND 7 SP-CENTER-GND 8 SP-CENTER FM SIGNAL C641 47/50 R626 R627 100K 68K R737 R740 R735 22K 22K R738 5.6K 1 C666~C670 0.01 ZD632 MTZJ5.1A D621 1N4004 CNP602 7 6 5 5 5 4 4 4 3 3 3 2 2 2 D623 1N4004 1 1 1 2 SP-REAR-Lch-GND 3 SP-REAR-Rch-GND SP-REAR-Rch 1 1 F611 800mA T.F.
HT-DP2500 A DISPLAY PWB-C1 7 8 F2 F2 NP NP 1G 2G 3G 4G 5G 6G 7G 8G 9G 10G NC NC NC P1 NC P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 5 6 P12 P16 3 P13 NP NP 2 P14 F1 1 4 P15 F1 FL1 ET211GK 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 B TIMER ON'( Q KRC 0.8V(–2.1V)TIMER ON'( ) 4G –28.8V –28.8V –28.8V 6G –28.8V –28.8V –28.8V –28.8V –28.8V –28.8V –28.8V –24.2V –28.8V –24.2V –24.2V –24.2V –20.4V –24.2V –28.
CNS3 HT-DP2500 C20 0.47/50 1 1 2 2 2 3 3 3 4 4 4 SWITCH PWB-C5 SW2 R124 5.6K R125 10K SW4 SW5 SW6 SW7 LED1 L1154HDB TUNER /BAND CD/AUX VCR-2 VCR-1 A SW23 JOG TO MAIN PWB P13 12-G CNP5 BI5 STAND-BY LED R170 1K JOG_DOWN TIMER LED 5V(0V) 2 R42 LED2 1K 0V 1 L1154HDB SW8 C JOG_UP 0.8V(–2.1V)TIMER ON'( ) R123 3.9K MEMORY TUNING TUNING DOWN /SET UP TIMER ON'( ) Q10 KRC102M VR1 B CNS5 1 1 2 2 3 3 5V 0V SUB-WOOFER VOLUME R41 1K R40 PROTECT 1K C10 0.
1 2 Figure 18 SCHEMATIC DIAGRAM (7/7) – 18 – 3 4 5 6 NOTES ON SCHEMATIC DIAGRAM can be found on page 9. FM 75ohms 4 D201 1N4148 D202 1N4148 R299 47 R204 47K C264 0.001 C261 12P 2.6V 3 2 4 5 6 2 3 TP302 R215 100K C223 470P R225 1.8K C266 330P C260 1/50 7 8 9 10 11 3.7V 1.7V (0V) (11.4V) C269 0.001 C282 0.01 1 R240 10K C221 18P (UJ) C218 8P VD201-2 KV1236Z23F 22 21 20 19 18 17 16 15 14 13 12 2.6V R209 470 R210 4.7K C281 0.022 C285 0.01 AM OSC. C286 C208 18P (SL) 0.
HT-DP2500 TUNER PWB-B R227 A C251 R229 R228 C253 R230 1 2 3 4 5 6 7 8 9 10 11 12 CNS201 R237 TO MAIN PWB C273 2 1 R248 C247 R247 C245 C248 R223 R221 IC203 R218 C246 J202 C242 R217 C249 CF201 3 2 1 C235 C228 R220 3 2 9 8 7 6 5 4 3 2 1 13 14 15 16 17 18 19 20 21 22 23 24 R251 C240 C241 12 11 10 C229 C275 1 R219 T204 R241 C265 R244 C239 C238 TP301 C237 R224 C226 C208 L205 R213 R212 C236 VR201 FM MUTE LEVEL R209 R239 R240 C274 C271 R238 C269 X202 C262 C261
HT-DP2500 TO TUNE CNS MAIN PWB-A C485 C486 C480 C479 C478 C453 C488 R563 R471 R459 C581 C585 C436 IC431 R432 R436 C570B R550 C428 C430 R568 R564 R440 C431 1 2 3 4 8 7 6 5 R438 C432 R554B D630 C630 + D622 D624 R622 R620 D621 C621 C620 E C B D623 B C E R621 C623 ZD621 – C633 C631 8 6 4 2 1 7 R623 BI602 ZD630 9 7 5 3 1 R433 R434 R435 C429 C427 Q621 22 20 18 16 14 12 10 C622 CNP1A TO DISPLAY PWB R53 C554 R566 D625 CNP1B 23 21 19 17 15 13 11 C578 R437
HT-DP2500 TO TUNER PWB R412 R414 R410 R408 C410 R418 R479 C412 1 2 3 4 5 6 7 8 9 10 1112 R416 CNS201 C409 R417 R415 C411 R420 C402 R404 R403 R521 C503 L-CH R424 C422 R422 R-CH R423 C421 R421 L-CH R428 C424 R426 R-CH R425 L-CH VCR-2 IN AUX IN D422 C509 D421 R427 C505 C423 C517 C521 C535 C519 R626 R737 D631 1 2 3 C667 C668 4 3 2 C711 5 4 7 6 C703 R780 R777 SO701 C770 C771 D707 D706 C707 R776 C669 R763 C763 C761 3 2 5 4 7 6 9 11 8 10 IC704 9 C762 C
HT-DP2500 A VCR-1 SW15 TUNING UP SW10 TUNING DOWN SW11 TUNER/BAND SW12 CD/AUX SW13 VCR-2 SW14 SW9 MEMORY/SET R128 51 R7 10 IC1 65 85 70 80 75 BI4 76 5 95 90 1 L1 R6 R5 R43 R4 R3 R2 R1 1 100 R56 R53 R52 R51 34 33 32 31 30 29 28 27 26 25 24 23 22 21 2019 18 17 16 15 14 13 12 11 10 9 8 7 6 5 38 37 8 XL1 XL2 C5 C7 25 C1 C9 R8 C3 C4 C8 R11 R12 R13 40 45 55 60 50 Q10 C R9 R10 26 30 20 35 15 R40 R41 1 2 3 R14 C2 R28 R29 R30 R31 R33 R38 R25 R23 R15 R88 C12 R138 R42
HT-DP2500 CNS5 1 2 3 SW9 MORY/SET SW6 ENTER SW2 TIMER/SLEEP OUT IN R8 R124 C11 C B R120 C5 C1 L1 R5 R43 R4 R3 R2 R1 R123 C3 C4 A R6 VR1 SUB WOOFER VOLUME C10 7 SW5 X-BASS SW4 EQUALIZER R121 R74 R73 SW3 DOLBY PROLOGIC R125 R71 R69 1 2 3 2 1 SW7 VOLUME DOWN R122 22 20 18 16 14 12 10 8 6 4 2 23 21 19 17 15 13 11 9 7 5 3 1 R165 R164 R163 R162 CNP1A Q5 R92 R72 R70 56 53 52 51 1 BI5 GND R58 R60 R59 3 SW23 JOG SW8 VOLUME UP FC1 DISPLAY PWB-C1 CNP1B TO MAIN PWB CNS601 1 2
HT-DP2500 FUNCTION TABLE OF IC IC1 RH-iX0001SJZZ: System Microcomputer (IX0001SJ) (1/2) Pin No.
HT-DP2500 IC1 RH-iX0001SJZZ: System Microcomputer (IX0001SJ) (2/2) Pin No.
HT-DP2500 IC501 VHiLC75396N-1: Audio Processor (LC75396N) Pin No. Terminal Name Function 1-3 RF1C1-RF1C3 Terminal to connect capacitor of filter configuration for equalizer F1 band Connect the capacitor between LF1C1(RF1C1) and LF1C2(RF1C2) between LF1C2 (RF1C2) and LF1C3(RF1C3). 4-6 RF2C1-RF2C3 Terminal to connect capacitor of filter configuration for equalizer F2 band Connect the capacitor between LF2C1(RF2C1) and LF2C2(RF2C2) between LF2C2 (RF2C2) and LF2C3(RF2C3).
HT-DP2500 100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76 S16 S15 S14 S13 VPP DEM1 DEM0 V_MUTE V_SW2 V_SW1 PRO_CK PRO_DI PRO_ENA SW_ON AC3_SCK D_SEL AC3_SI AC3_SS AC3_RES ADPD DAPD IC1 RH-iX0001SJZZ: System Microcomputer (IX0001SJ) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 VREF+ 24 ALC 25 TUN_DI TUN_DO TUN_CK TUN_CE TUN_MUTE TUN_SD TUN_ST VDD OSC2 OSC1 VSS XI XO MMOD VREF KEY1 KEY2 KEY3 AREA SP_LEVEL MODEL POSISTOR 75 74 73 72 71 70 69 68 67 66 65 64 63 6
HT-DP2500 RT-IN LT-IN DC-OUT C-MODE GND NS-BPF1 NS-BPF2 OSC CLK DATA ENABLE DATA CLK VSS 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 L NOISE-GEN R NOISE-FIL 32 OSC 31 OSC VDD ADM-CONT 29 A/D 27 D/A L S DC-OUT 25 DC-OUT VOLMUTE SW7 A SW7 A A SW7 B B SW3 20kΩ 18 VCC R L 8 9 10 11 12 13 14 15 16 R-IN S-IN S S L-IN B SW7 A SW5 SW7 A B B B A SW6 R AC-GND R-DC-OUT L L-OUT C-DC-OUT 19 DET C Figure 28 BLOCK DIAGRAM OF IC – 28 – 20 IREF
HT-DP2500 FL701 VVKBT211GK/-1: FL SEGMENT 9G 10G col a 7G 6G 5G 4G 3G Dp 2G 1G j h f e 8G g k b m r n p c d (8G~1G) ANODE CONNECTION 8G~3G 2G 1G P9 c c c h P10 e e e j j P11 r r r k k k P12 p p p P5 b b b P13 n n n P6 f f f P14 d d d P7 m m m P15 Dp P8 g g g P16 col 10G 9G 8G~3G 2G 1G P1 a a a P2 h h P3 j P4 10G Figure 29 FL SEGMENT – 29 – 9G
HT-DP2500 —MEMO— – 30 –
HT-DP2500 PARTS GUIDE MODEL HT-DP2500 “HOW TO ORDER REPLACEMENT PARTS” To have your order filled promptly and correctly, please furnish the following information. 1. MODEL NUMBER 2. REF. No. 3. PART NO. 4. DESCRIPTION For U.S.A. only Contact your nearest SHARP Parts Distributor to order. For location of SHARP Parts Distributor, Please call Toll-Free; 1-800-BE-SHARP MARK: SPARE PARTS-DELIVERY SECTION Explanation of capacitors/resistors parts codes Capacitors Resistors VCC .......................
HT-DP2500 NO. PRICE RANK PART CODE DESCRIPTION NO. DESCRIPTION FILTERS HT-DP2500 BF201 CF201 CF202 CF203 INTEGRATED CIRCUITS IC1 RH-IX0001SJZZ J IC201 IC202 IC203 IC411 IC431 IC452 VHITA7358AP-1 VHILC72131/-1 VHILA1833//-1 VHINJM4565D-1 VHINJM4558D-1 VHILV1035M/-1 J J J J J J IC501 IC561 IC581 IC701~705 VHILC75396N-1 VHINJM4558D-1 VHINJM4558D-1 VHILM2876//-1 J J J J BE System Microcomputer, IX0001SJ AG FM Front End,TA7358AP AP PLL (Tuner),LC72131 AV FM/AM IF MPX.
HT-DP2500 NO.
HT-DP2500 NO.
HT-DP2500 NO.
HT-DP2500 NO.
HT-DP2500 HT-DP2500 601x2 A 601 201 222 203 220 602x2 B 601x9 PWB-C3 602x2 603x4 PWB-B 221 x2 202 601x2 205 605 603x2 ,,,,,, ,,,,,, ,,,,,, ,,,,,, ,,,,,, C Silicon Grease 221x2 603 PWB-C2 226 D 609 208 227 228 Silicon Grease 603x3 611x5 607x10 Silicon Grease 603 225 603 603x4 224 611x4 E FL1 204 612 225 PWB-A 223 Silicon Grease 603x2 608x2 PWB-C5 229 607 PWB-C1 217 PWB Washer 604 603 PWB-C4 603x4 209 F 610x4 212-2 210 216 G 212-1 213 207 214 212-3 x2
HT-DP2500 CP-F2500 707 A 706x4 SP3,4 705x2 B 708 704 C D 703 701 702 E 705x4 SP1,2 Capacitor C1,C2 RD WOOFER SP1(L-CH) SP2(R-CH) BK RD F TWEETER SP3(L-CH) SP4(R-CH) WOOFER SP1(L-CH) SP2(R-CH) G BK C1,C2 Capacitor 3.
HT-DP2500 CP-SW2500 709x4 707 A 710 705 711 B SP1 708x4 C D 701 704x4 E 703 F 706 WOOFER SP1 G RD BK 702 H 1 2 3 4 Figure 8 SPEAKER EXPLODED VIEW (2/3) 8 –– ––41 5 6
701 H 705x4 CP-C2500 G SP1,2 703 F 707 1 2 E Figure 9 SPEAKER EXPLODED VIEW (3/3) ––42 9 –– 3 4 5 BK RD WOOFER SP1,2 704x4 701 702 B SP1,2 708 709 BK 703 RD 707x2 WOOFER SP1,2 706 705x4 A 702 708 704 706x4 CP-SR2500 HT-DP2500 C D 6
HT-DP2500 PACKING OF THE SET Sub Woofer CP-SW2500 Polyethylene Bag Sub Woofer SSAKH0005SJZZ Front Speaker (L/R) CP-F2500 Center Speaker Polyethylene Bag SSAKH0003SJZZ ON T Surround Speaker (L/R) CP-SR2500 Polyethylene Bag SSAKH0004SJZZ Polyethylene Bag SSAKH0003SJZZ Polyethylene Bag, Accessories SSAKH0002SJZZ Front Speaker Cord Ass'y Surround Speaker Cord Ass'y FR CP-C2500 Packing Add., Front/Center/Surround Speaker SSAKA0006SJZZ Packing Add.
HT-DP2500 –– MEMO –– – 11 44 –
HT-DP2500 –– MEMO –– – 12 45 –
HT-DP2500 COPYRIGHT © 1998 BY SHARP COPORATION ALL RIGHTS RESERVED. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.
