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CD-BA250H/CD-BA2600H

No. S4126CDBA250H

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL ...........................................................................................................2

IMPORTANT SERVICE NOTES (CD-BA250H FOR U.K. ONLY) ..................................................................................... 3

SPECIFICATIONS ............................................................................................................................................................. 3

NAMES OF PARTS ........................................................................................................................................................... 4

OPERATION MANUAL ...................................................................................................................................................... 6

DISASSEMBLY ................................................................................................................................................................ 11

REMOVING AND REINSTALLING THE MAIN PARTS ................................................................................................... 14

ADJUSTMENT ................................................................................................................................................................. 15

BLOCK DIAGRAM ........................................................................................................................................................... 19

SCHEMATIC DIAGRAM / WIRING SIDE OF P.W.BOARD ..............................................................................................22

VOLTAGE ........................................................................................................................................................................ 38

NOTES ON SCHEMATIC DIAGRAM .............................................................................................................................. 39

TYPES OF TRANSISTOR AND LED................................................................................................................................39

WAVEFORMS OF CD CIRCUIT ...................................................................................................................................... 40

TROUBLESHOOTING ..................................................................................................................................................... 41

FUNCTION TABLE OF IC................................................................................................................................................ 45

FL DISPLAY ......................................................................................................................................................................51

WIRING OF PRIMARILY SUPPLY LEADS (CD-BA250H FOR U.K. ONLY) ....................................................................52

REPLACEMENT PARTS LIST/EXPLODED VIEW

PACKING METHOD (CD-BA250H FOR U.K. ONLY)

• In the interests of user-safety the set should be restored to its

original condition and only parts identical to those specified be

used.

SERVICE MANUAL

This document has been published to be used

for after sales service only.

The contents are subject to change without notice.

SHARP CORPORATION

MINI COMPONENT SYSTEM

MODEL CD-BA250H

CD-BA250H Mini Component System consisting of

CD-BA250H (main unit) and CP-BA250H (speaker system).

MINI COMPONENT SYSTEM

MODEL CD-BA2600H

CD-BA2600H Mini Component System consisting of

CD-BA2600H (main unit) and CP-BA2600H (speaker system).

• Note for users in U.K.

Recording and playback of any material may require consent

which SHARP is unable to give. Please refer particularly to the

provisions of Copyright Act 1956, the Dramatic and Musical

Performers Protection Act 1956, the Performers Protection Acts

1963 and 1972 and to any subsequent statutory enactments and

orders.

RTV servis Horvat

Tel: ++385-31-856-842

Tel/fax: ++385-31-856-139

Mob: 098-788-319

www.rtv-horvat-dj.hr

Summary of content (57 pages)

PAGE 1
CD-BA250H/CD-BA2600H SERVICE MANUAL No. S4126CDBA250H MINI COMPONENT SYSTEM MODEL CD-BA250H CD-BA250H Mini Component System consisting of CD-BA250H (main unit) and CP-BA250H (speaker system). MINI COMPONENT SYSTEM MODEL CD-BA2600H CD-BA2600H Mini Component System consisting of CD-BA2600H (main unit) and CP-BA2600H (speaker system). • Note for users in U.K. Recording and playback of any material may require consent which SHARP is unable to give.
PAGE 2
CD-BA250H/CD-BA2600H Laser Diode Properties Material: GaAIAs Wavelength: 780 nm Emission Duration: continuous Laser Output: max. 0.6 mW SAFETY PRECAUTION FOR SERVICE MANUAL Precaution to be taken when replacing and servicing the Laser Pickup. The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class 1 Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the Laser beam.
PAGE 3
CD-BA250H/CD-BA2600H IMPORTANT SERVICE NOTES (CD-BA250H FOR U.K. ONLY) WITHSTANDING VOLTAGE TESTER Before returning the unit to the customer after completion of a repair or adjustment it is necessary for the following withstand voltage test to be applied to ensure the unit is safe for the customer to use. Setting of Withstanding Voltage Tester and set.
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CD-BA250H/CD-BA2600H NAMES OF PARTS CD-BA250H/CD-BA2600H Front panel 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30.
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CD-BA250H/CD-BA2600H CD-BA250H/CD-BA2600H Rear panel 1. FM 75 Ohms Aerial Sock 2. AM Loop Aerial Socket 3. Video/Auxiliary (Audio Signal) Input Sockets 4. Speaker Terminals 5. AC Power Lead 1 2 3 4 5 Remote control 1 1. Remote Control Transmitter 2. Disc Number Select Buttons 3. CD Pause Button 4. CD Memory Button 5. CD Track Down or Fast Reverse Button 6. CD Clear Button 7. Tape 1 Play Button 8. Tape 1/Tape 2 Stop Button 9. Equalizer Mode Select Button 10. Tape 2 Record Pause Button 11. CD Button 12.
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CD-BA250H/CD-BA2600H CP-BA250H/CP-BA2600H Speaker system 1 1. Tweeter 2. Woofer 3. Bass Reflex Duct 4. Speaker Wire 2 3 3 4 OPERATION MANUAL Setting the Clock 4 Press the TUNING/TIME ( or ) button to adjust the hour and then press the MEMORY/SET button. Press the TUNING/TIME ( or ) button once to advance the time by 1 hour. Holdit down to advance continuously. When the 12-hour display is selected, "AM" will change automatically to "PM".
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CD-BA250H/CD-BA2600H Troubleshooting Chart Cassette deck Many potential "problems" can be resolved by the owner without calling a service technician. If something is wrong with this product, check the following before calling your authorised SHARP dealer or service centre. Symptom Cannot record. Cannot record tracks with proper sound quality. General Possible cause Is the erase-prevention tab removed? Is it a normal tape? (You cannot record on ametal or CrO tape.) Symptom The clock is not on time.
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3 Accessories System connections Right speaker Remote control × 1 Left speaker AM loop antenna ×1 FM antenna Red Black AM loop antenna FM antenna × 1 2 Battery installation of remote control Use 2 “AA” size batteries (UM/SUM-3, R6, HP-7 or similar). –8– 1 Remove the battery cover. 2 Insert the batteries as shown. Batteries are not included. 3 Replace the cover. Left speaker Right speaker TV RCA lead (not supplied) Wall socket (AC 230 V, 50 Hz) (For U. K.
PAGE 9
4 Listening to a cassette tape (TAPE 1 or TAPE 2) Turn on your system The first time the unit is plugged, the unit will enter the demonstration mode. You will see words scroll. 1 Press the X-BASS/DEMO button to cancel the demonstration mode. 2 Press the ON/ STAND-BY button to turn the power on. 1 Open the cassette door by pushing the area marked “ PUSH EJECT”. 2 Load a cassette into the TAPE 1 or TAPE 2 cassette compartment with the side to be played facing toward you.
PAGE 10
CD-BA250H/CD-BA2600H Using the Radio Data System (RDS) RDS is a broadcasting service which a growing number of FM stations provide. These FM stations send additional signals along with their regular programme signals. They send their station names, and information about the type of programme such as sports or music, etc. When tuned to an RDS station, "RDS" and the station name will be displayed.
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CD-BA250H/CD-BA2600H DISASSEMBLY CD-BA250H/CD-BA2600H 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 to be removed when disassembling the unit.
PAGE 12
CD-BA250H/CD-BA2600H (K2) x 1 Clamp Lever Turntable CD Player Unit (Top View) Cam Gear Rib Slide Chassis (K1) x 2 Figure 12-1 (E2) x 2 (E4) x 1 CD Player Unit Headphones PWB (E1) x 2 ø3 x 10mm Figure 12-4 Power PWB (E3) x 1 (L1) x 3 (E2) x 1 Front Panel 3 Transformer PWB 2 Main PWB 1 (F1) x 2 ø3 x 8mm (L1) x 3 Figure 12-2 (G2) x 1 Front Panel Figure 12-5 Display PWB (G1) x 12 ø3 x 10mm (M1) x 1 ø3 x 8mm CD Servo PWB (M3) x 2 Tape Mechanism (M2) x 2 Open (H1) x 5 ø3 x 10mm Cassett
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CD-BA250H/CD-BA2600H (N2) x 3 CD Mechanism (N1) x 1 (N1) x 1 Figure 13-1 CP-BA250H/CP-BA2600H STEP REMOVAL PROCEDURE FIGURE 1. Net ......................... (A1) x1 13-2 1 Front Panel 2 Woofer 1. Screw .................... (B1) x4 13-3 3 Tweeter 1. Screw .................... (C1) x2 13-3 (C1) x 2 ø3 x 10mm (B1) x 4 ø4 x 12mm Front Panel (A1) x 1 Screwdriver Tweeter Woofer Driver should be pried away from Speaker Box.
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CD-BA250H/CD-BA2600H REMOVING AND REINSTALLING THE MAIN PARTS TAPE MECHANISM SECTION TAPE 2 Perform steps 1 to 6 and 8 of the disassembly method to remove the tape mechanism. Clutch Ass'y Record/Playback Head How to remove the record/playback and erase heads (TAPE 2) (See Fig. 14-1) 1. When you remove the screws (A1) x 2 pcs., the recording/ playback head and three-dimensional head of the erasing head can be removed. Erase Head How to remove the playback head (TAPE 1) (See Fig.
PAGE 15
CD-BA250H/CD-BA2600H CD MECHANISM SECTION Perform steps 1, 2, 3, 10, 11, 12 and 13 of the disassembly method to remove the CD mechanism. Slide Chassis How to remove the loading motor (See Fig. 15-1) 1. Bend the hooks (A1) x 5 pcs., to remove the loading motor. 2. Remove the drive belt (A2) x 1pc. Loading Motor PWB Loading Motor (A1) x 1 (A1) x 2 (A1) x 2 Loading Pulley Motor Drive Belt (A2) x 1 Figure 15-1 How to remove the pickup (See Fig. 15-2) Stop Washer (B3) x 2 (B1) x 1 ø2.6 x 6mm 1.
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CD-BA250H/CD-BA2600H TUNER SECTION • FM Notes: 1: Description of the "FM IF Adjustment" is not carried on this Manual. It is because the IF coil in the FM front end section has been best adjusted in the factory so that its further adjustment is not needed at the field. When replacing the FM front end assembly, no adjustment is needed either. 2: The parts in the FM front end section are prepared in a complete unit, so you can't obtain each part individually.
PAGE 17
CD-BA250H/CD-BA2600H TEST MODE • Setting the test mode Any one of test mode can be set by pressing several keys as follows. + + TEST:CD operation test. Function:-CD test mode. -Enter test mode. C D T E S T IL isn't done. OPEN/CLOSE operation is using manual. << >>, << >> buttons make pick's slide possible. <> key input. Do TOC IL. Do normal play. When these following key is input into PLAY key, track number can be appoint directly. <> key input.
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CD-BA250H/CD-BA2600H Standard Specification of Stereo System Error Message Display Contents Error Contents DISPLAY Output while Device Protection Operation. 'PROTECT' Notes 00: While in Protect Circuit Operate. 01: Over Current Detection. 02: DC Detection. 03: TAPE Mechanism Error. 'ER-TA**' 00: Tape Mechanism Error. 01: Initial Error. 02: 03: CD/VCD Pickup Mechanism Error. 'ER-CD**' 00: Pickup Mechanism Error. 01: PU-IN SW Detection NG. 02: 03: 04: CD Changer Mechanism Error.
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CD-BA250H/CD-BA2600H OC.
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CD-BA250H/CD-BA2600H +B4 SO302 FM ANTENNA 10.7 MHz AM LOOP ANTENNA IC303 LA1832S FM IF DET./ FM MPX/ AM IF L341 BALUN AM TRACKING 1 AM MIX AM IF FM/AM IF MPX. 23 22 21 24 7 FM/AM OUT XIN XOUT VSSD RDDA VDDA VDDD RDCC VSSA 8 RST READY MPXIN 3 +B FM Q360 SWITCHING 2 IC101 AN7345K PLAYBACK AND RECORD /PLAYBACK AMP. L(T1) 1 R(T1) 24 7 4 5 6 17 9 10 21 MO/ST FM +B4 23 DI 1 CE 2 CLK 24 7 8 17 18 PB REC/PLAY +B4 8 1 7 L 18 R 4 REC 7 IC561 IC562 KIA4558P OPE AMP.
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CD-BA250H/CD-BA2600H FL701 FL DISPLAY +B4 1 2 3 6 13 14 23 16 31 33 47 48 49 44 +B5 Q701-Q703 +B7 40 VDD 66 65 64 63 55 54 53 52 51 50 49 48 47 46 45 44 43 42 67 - 78 79 VLOAD 80 39 +B5 - 90 36 35 +B7 AVDD 34 33 - IC701 IX0401AW SYSTEM MICROCOMPUTER(1/2) 89 - 31 1 2 4 5 6 7 9 10 11 12 13 15 16 17 +B7 KEY SW701-SW707 SW712-SW718 SW720-SW727 SW729-SW732 CE CLK DI DO VDD RESET - VDD 93 - 92 100 RX701 REMOTE 1 SENSOR 3 2 20 21 22 23 24 XL700 +B7 4.
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CD-BA250H/CD-BA2600H A PICKUP UNIT CD SERVO PWB-C F R11 10K C3 47/25 R13 1K C49 47/25 C4 0.001 R9 3.3 Q1 KTA1266 GR 9 7 6 5 4 FD 8 FO+ 21 20 19 18 17 16 15 14 13 12 11 10 TR+ MUTE FO– SP+ SP– SL+ SL– PUIN GND 3 2 IC2 M63001FP FOCUS/TRACKING/ SPIN/SLED DRIVER – + 6 5 4 3 2 1 TR– 6 5 4 3 2 1 1 GND 1 2 3 4 5 6 C39 100/10 CNP3 PU-IN 1 2 3 4 5 6 1 2 3 TP3 C7 4 100P 5 6 7 TP1 C50 8 22P TP2 9 (CH) 10 C10 11 10/50 C9 12 100/10 13 C11 0.
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CD-BA250H/CD-BA2600H 3 C34 100P C32 100P R38 R37 R36 R35 R34 R33 R32 C30 100P R31 1K 3 R-CH AGND L-CH DGND +5 V 1 2 3 4 5 +5 V 6 CNS601 FROM MAIN PWB P24 1-A CNP7 C48 0.022 Q2 KTC3203 Y R47 100 ZD2 DZ3.9BSB 2 1 R30 8.2K Q3 KRC102 M 9 40 41 42 LD_M+ LD_M– R19 15K VCC4 M+ C51 0.022 R45 470 D1 DS1SS133 D2 DS1SS133 CNS8 FROM DISPLAY PWB P29 9-A CNP8 R26 10K 9 R46 470 9 8 7 6 5 4 3 2 1 R23 220 C13 0.022 1 60 DATA 59 DATACK 58 10 57 56 55 54 53 52 51 50 R43 49 XL1 48 100 33.
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CD-BA250H/CD-BA2600H MAIN PWB-A1(1/3) A R602 1K C650 220P 10 11 12 A+10 V +B 20 21 11 GND 12 GND R608 1.2K SP_DET C601 220/16 17 – + + - R4 L3 DECK R3 L2 TUNER R2 L1 CD R1 16 15 14 13 C624 1/50 C626 0.0056 R621 C639 1/50 VF2 R620 22K –VP 22K SW_5 V 17 18 19 10 AUX C613 1/50 C615 4.7/50 C617 1/50 C619 1/50 C621 1/50 C623 1/50 18 RSEL0 L4 9 19 RIN LSEL0 8 C622 1/50 SP_RLY 13 14 20 LIN 7 22 RTRE + – R614 3.3K R611 2.2K C603 22/50 C607 0.
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CD-BA250H/CD-BA2600H FM SIGNAL PLAYBACK SIGNAL RECORD SIGNAL CD SIGNAL C601 220/16 VIDEO SIGNAL SOR +B VDD 23 – +B C609 C603 1/50 22/50 C607 0.1 ROUT 21 C605 R607 0.15 3.9K RBASS VREF + R603 1K 24 CLK 22 R605 10K 20 16 R3 15 R2 14 R1 13 1 RDS-RDDA 2 RDS-RDCL R609 1.2K 3 RDS-READY 4 TUN_SM 5 CE C625 0.
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CD-BA250H/CD-BA2600H IC901 STK4029S POWER AMP. 12 R947 0.22 (2W) R954 1.5K Q902 KTC3199 GR C946 10/50 C945 10/50 13 14 15 C939 150P R945 0.22 (2W) R939 56K C937 15P R941 R935 1K 1K C935 4.7/50 R949 0.1 (1W) R951 1K C947 0.022 R953 1.5K Q904 KTC3199 GR D913 1SS133 D911 DS1SS133 R956 56K R955 56K R957 56K 11 C949 47/50 C948 0.022 C932 0.001 R932 56K 10 Q905 KTC3199 GR B Out R950 0.1 (1W) R952 1K R940 1K C934 4.7/50 9 C941 100/50 R944 100 R936 R938 820 56K 8 R948 0.
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CD-BA250H/CD-BA2600H MAIN PWB-A1 (2/3) D915 DS1SS133 +B +B R981 R988 R982 R986 R972 15K 680 680 680 680 C968 10/50 R970 1K R971 68K 2 2 1 1 R967 4.7K M M901 FAN MOTOR Q906 KTC3203 Y CNP971 C967 47/50 + CNS971 R969 4.7 +B CNP981 FM SIGNAL 1 L1_OUT R1_OUT RL914 C735 220P 1 2 3 4 5 R968 4.7K 950 0.1 ML) HEADPHONES PWB-B2 5 C734 JK701 220P HEADPHONES FW981 D914 DS1SS133 952 0.1 ML) 0.2V 958 .7 Q914 KTC3199GR 4.
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CD-BA250H/CD-BA2600H A DISPLAY PWB-B1 F F G01 G02 G03 G04 G05 G06 G07 G08 G09 G10 G11 P01 P02 P03 P04 P05 P07 P06 31 30 29 28 27 26 25 24 23 16 15 14 13 12 11 10 9 8 7 6 49 48 47 44 43 42 41 40 39 38 37 36 35 34 33 32 Q701 KTC3199 GR P08 P09 P10 P11 P12 P13 P14 P15 P16 P17 P18 P19 P20 P21 P22 FL701 FL DISPLAY 3 2 Q703 KTC3199 GR Q702 KTC3199 GR B C707 1/50 79 VLOAD 78 P11 77 P12 IC701 IX0401AW SYSTEM MICROCOMPUTER 73 P16 72 P17 71 P18 WRQ 9 RESET 10 X2 11 70 P
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CD-BA250H/CD-BA2600H TO CD SERVO PWB P23 12-B CNP8 3 2 1 9 8 7 6 5 4 3 2 1 CNS8 25 24 23 16 15 14 13 12 11 10 9 8 7 6 3 CD CLK RES OUT CLAMP SW DISC_NO SW DRF CD CE CD DO CD DI CD SECTION FFC701 1 F F F G01 G02 G03 G04 G05 G06 G07 G08 G09 G10 G11 P01 P02 P03 P04 WRQ(DSP) BI701 9 8 7 6 5 4 2 1 1 RDS-RST 2 RDS-RDDA 3 RDS-RDCL C701 1/50 4 RDS-READY 5 TUN SM 6 CE C702 220/10 C703 0.
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CD-BA250H/CD-BA2600H AM LOOP ANTENNA S0302 FM ANTENNA TERMINAL 2 1 2 1 C338 0.001 +B 100/16 C345 R345 0.022 4.7K C347 0.022 R344 470 C323 0.022 T306 AM OSC. IF OUT 1 1 CF301 3 R346 330 R348 R347 6.8K R323 68K 680 C330 15P R349 33 VD301 KDV147B Q301 2SC380 O +B C335 560P C334 22P(CH) 2 C332 0.022 C331 0.047 C341 0.022 T303 AM TRACKING AM BAND COVERAGE fL GND 2 R336 10K TP301 +B C384 0.001 2 C IC302 LC72131 PLL(TUNER) +B C381 12P(CH) X352 4.5MHz C382 15P(CH) C397 0.
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CD-BA250H/CD-BA2600H VOLTAGE PIN NO. 1 2 3 4 5 6 7 8 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 39 40 IC1 PIN NO. 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 VOLTAGE 1.6 V 1.0 V 1.6 V 1.8 V 3.3 V 0V 1.6 V 1.6 V 1.6 V 1.6 V 1.6 V 1.6 V 1.5 V 1.5 V 1.5 V 1.5 V 0.8 V 3.2 V 0V 1.6 V 1.6 V 1.6 V 1.6 V 0V 0V 3.2 V 0V 0V 0V 0V 0V 0V 0V 0V 1.6 V 0V 0V 3.2 V 3.2 V 0V 3.7 V 3.7 V 0V 0V 3.
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CD-BA250H/CD-BA2600H 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 pico-farad and the unit of the capacitor without such a symbol is microfarad.
PAGE 33
CD-BA250H/CD-BA2600H WAVEFORMS OF CD CIRCUIT Stopped CH1=500 mV DC 10:1 CH3=500 mV DC 10:1 T Stopped CH1=500 mV DC 10:1 500 ms/div (500 ms/div) NORM:20 kS/s CH3=1 V DC 10:1 1999/04/05 17:33:17 CH4=1 V 500 ms/div (500 ms/div) DC 10:1 NORM:20 kS/s PDO1 1 FDO IC1 21 7 1 IC1 73 3 4 8 2 IC1 20 T 3 1 CH1 v/DIV 500 mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000 V CH2 : 0.0 V CH3 : 0.000 V CH4 : 0.
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CD-BA250H/CD-BA2600H TROUBLE SHOOTING When the CD does not function When the CD section does not operate when the objective lens of the optical pickup is dirty, this section may not operate. Clean the objective lens, and check the playback operation. When this section does not operate even after the above step is taken, check the following items. Remove the cabinet and follow the trouble shooting instructions.
PAGE 35
CD-BA250H/CD-BA2600H Stopped CH1=500mV DC 10:1 (1) Focus-HF system check. Although a CD is inserted and the cover is closed, "NO DISC" is displayed. CH3=500mV DC 10:1 T 500ms/div (500ms/div) NORM:20kS/s FDO 1 Press the OPEN/CLOSE switch (SW1) without inserting a disc, and try starting the playback operation. TDO 3 CH1 v/DIV 500mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000V CH2 : 0.0V CH3 : 0.000V CH4 : 0.
PAGE 36
CD-BA250H/CD-BA2600H (2) Tracking system check. Check the TE waveform at pin 15 on IC1. If the waveform shown in Figure 43-1 appears and soon after NO DISC appears ? Yes The tracking servo is not activated. Check the peripheral circuits at pins 14, 15 and 20 on IC1, and CNS1A/B. Yes A normal jump operation cannot be completed or the beginning of the track cannot be found. Check the around pin 20 on IC1. No "Initialization" is possible, but play is not possible ? No "Initialization" is not possible.
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CD-BA250H/CD-BA2600H (4) PLL system check. Stopped CH1=500 mV DC 10:1 CH3=1 V DC 10:1 1999/04/05 17:33:17 CH4=1 V 500 ms/div (500 ms/div) DC 10:1 NORM:20 kS/s PDO1 When a disc is loaded, start play operation. 3 4 The HF waveform is normal, but the TOC data cannot be read. PDO2 T FDO 1 Check the PDO waveform. (Figure 44-1) CH1 v/DIV 500 mV =Filter= Smoothing : ON BW : FULL =Offset= CH1 : 0.000 V CH2 : 0.0 V CH3 : 0.00 V CH4 : 0.
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CD-BA250H/CD-BA2600H FUNCTION TABLE OF IC IC1 VHiLC78645E-1: CD Servo (LC78645E) (1/2) Pin No. Terminal Name Input/Output Setting in Reset Function 1 SLC0 Output – 2 SLCIST Input – Control output. 3 EFMIN Input – 4 RF Output – 5 RFVDD Input – RF power terminal. 6 RFVSS – – RF earth terminal. To be connected to 0 V. 7 FIN1 A Input – A+C signal input terminal. 8 FIN2 B Input – B+D signal input terminal. 9 TIN1 E Input – E signal input terminal.
PAGE 39
CD-BA250H/CD-BA2600H IC1 VHiLC78645E-1: CD Servo (LC78645E) (2/2) Pin No. Terminal Name Input/Output Setting in Reset 44 RVSS – – 45 RCHO Output LVDD /2 46 RVDD Input – 47 XVDD Input – 48 XOUT Output – 49 XIN Input – 50 FSX/16MIN Input/Output Input 51 XVSS – – 52* C2F Output H C2 FLAG monitor port. 53* EFLG Output L C1, C2 error corrected monitor port.
PAGE 40
CD-BA250H/CD-BA2600H LDD LDS FR VVDD PCKIST VVSS PD02 PD01 CONT1 CONT2 CONT3 VSS VDD5 DRF *RES *WRQ DO DI CL CE IC1 VHiLC78645E-1: CD Servo (LC78645E) 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 65 64 63 62 61 SLC0 1 60 DATA SLCIST 2 59 DATACK EFMIN 3 58 LRSY RF 4 57 ASDFIN RFVDD 5 56 ASDACK RFVSS 6 55 ASLRCK FIN1 7 54 16MOUT FIN2 8 53 EFLG TIN1 9 52 C2F TIN2 10 51 XVSS LC78645E VREF 11 50 FSX/16MIN REFI 12 49 XIN 35 36 37 FIN1 + –
PAGE 41
CD-BA250H/CD-BA2600H IC701 RH-iX0401AWZZ: System Microcomputer (IX0401AW) (1/2) Pin No. Port Name 1 VDD VDD 2 P37 3 4 Terminal Name Input/Output Function Input (+) POWER SUPPLY. -20 dB ATT Output -20 dB ATTENUATOR. P36 NO USE Output GND P35 T_BIAS Output TAPE RECORD BIAS. 5 P34 T_T1/T2 Output TAPE T1/T2 CHANGE. 6 P33 REC/PLAY Output TAPE REC/PLAY CHANGE. 7 P32 RES OUT Output CD DSP RESET&MPEG MICROCOMPUTER RESET. 8 P31 DRF Input CD RF LEVEL DETECTION.
PAGE 42
CD-BA250H/CD-BA2600H IC701 RH-iX0401AWZZ: System Microcomputer (IX0401AW) (2/2) Pin No. Port Name 53 P121 NO USE Input GND 54 P120 PLAY SW_B Input PLAY SWITCH FOR T 2. 55 P117 FPA Input TAPE 2 A-SIDE FULL PROOF. 56 P116 FPB Input TAPE 2 B-SIDE FULL PROOF. 57* P115 MIC SW Input MIC SWITCH. Terminal Name Input/Output Function 58* P114 LCK 0 Output LED DRIVER LCK. 59 P113 DISTOUT/SW OUT Output DESTINATION OUTPUT.
PAGE 43
CD-BA250H/CD-BA2600H DI CL VDD Yref 2 1 24 23 22 CCB INTERFACE LTRE 6 20 RBASS 0.1uF CONTROL CIRCUIT CONTROL CIRCUIT LBASS 5 0.
PAGE 44
CD-BA250H/CD-BA2600H FL DISPLAY FL701 VVKBJ11LM02T1: FL Display 11G S1 B21 B20 B19 B18 B17 B16 B15 S1 B7 B6 B5 B4 10G S1 B3 B2 B1 1G 2G B8 B9 B10 B11 B12 B13 B14 3G 4G 9G S1 S1 B7 B6 B5 B4 B3 B2 B1 5G 6G 7G S1 8G B1 B2 B3 B4 B5 B6 B7 S4 S5 S2 S3 a j h f g col e k b m n r p d c Dp 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G P1 S1 S1 S1 Dp Dp Dp Dp Dp Dp Dp Dp P2 B1 B1 B1 d d d d d d d d P3 B2 B2 B2 c c c c c c c c P4 B3 B3 B3
PAGE 45
CD-BA250H/CD-BA2600H WIRING OF PRIMARILY SUPPLY LEADS (CD-BA250H FOR U.K. ONLY) If any one of the bands shown in Fig. 52 is removed for some reason, be sure replace it to the original position and same appearance as before.
PAGE 46
CD-BA250H/CD-BA2600H PARTS GUIDE MINI COMPONENT SYSTEM MODEL CD-BA250H CD-BA250H Mini Component System consisting of CD-BA250H (main unit) and CP-BA250H (speaker system). MINI COMPONENT SYSTEM MODEL CD-BA2600H CD-BA2600H Mini Component System consisting of CD-BA2600H (main unit) and CP-BA2600H (speaker system). “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.
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CD-BA250H/CD-BA2600H NO.
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CD-BA250H/CD-BA2600H NO.
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CD-BA250H/CD-BA2600H NO.
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CD-BA250H/CD-BA2600H NO.
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CD-BA250H/CD-BA2600H NO. SW729 SW730 SW731 SW732 PARTS CODE 92LSWICHT1663T 92LSWICHT1663T 92LSWICHT1663T 92LSWICHT1663T J J J J PRICE RANK DESCRIPTION AC AC AC AC Switch,Key Type [Rec/Pause] Switch,Key Type [Tuning Up] Switch,Key Type [Video] Switch,Key Type [Tuner] NO.
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CD-BA250H/CD-BA2600H NO. 605 606 607 608 610 611 613 614 615 616 PRICE RANK PARTS CODE XBBSD20P04000 XEBSD30P10000 XEBSD30P12000 XESSD30P10000 XJBSD30P10000 XJBSD30P14000 XJSSD30P10000 92LSC0308MBZI 92LSC0308RBZI XHBSD40P08000 J J J J J J J J J J AA AA AA AA AA AA AA AB AB AA DESCRIPTION NO.
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CD-BA250H/CD-BA2600H CD-BA250H/CD-BA2600H 701 306 A 304 306-2 701 306-1 B 704 306-3 302 C 301 702 303 D 703x2 E M1 F 305 M2 305x2 G SW4 PWB-F H 1 2 3 4 Figure 7 CD MECHANISM EXPLODED VIEW –7– 5 6
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CD-BA250H/CD-BA2600H BELT CONNECTION CD-BA250H/CD-BA2600H FF/REW ROLLER ASS'Y 202-1 FF/REW ROLLER ASS'Y Tape Motor 202 A 603 x 2 FLYWHEEL FLYWHEEL ASS'Y ASS'Y MAIN BELT TAPE1 TAPE2 603 x 1 610 x 12 PWB-A1 B 610 610 x 2 603 x 1 610 x 2 202-2 223 606 x 12 PWB-B1 M901 226 218 C 605 x 2 211 258 602 x 3 IC904 258-1~258-11 214 610 207 610 IC902 223 FL701 PWB-D IC903 608 x 5 220 D 201-10 201 PWB-B2 201-9 201-15 601 x 1 259 Silicon Grease 201-14 201-27 201-11 IC901 201-2
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CD-BA250H/CD-BA2600H CD-BA250H/CD-BA2600H 607 x 2 204 A 250 229 B 228 236 254 614 237 C 607 x 2 249 CD MECHANISM 255 234 260 231 240 D 242 E PWB-E PWB-E 243 x 4 M3 244 239 248 245 261 252 SW3 SW1 SW2 241 PWB-C 232 225 246 M3 232 232 247 253 F 256 615 235 227 232 x 4 251 G 233 206 257 238 H 1 2 3 4 Figure 9 CABINET EXPLODED VIEW (2/2) –9– 5 6
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CD-BA250H/CD-BA2600H CP-BA250H/CP-BA2600H BK SP1,2 WOOFER A C1,2 Capacitor 2.7µF,100V (N.P.) RD RD BK SP3,4 TWEETER B 901 C1,2 Capacitor 2.7µF,100V Electrolytic (N.P.
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CD-BA250H/CD-BA2600H PACKING METHOD (CD-BA250H FOR U.K. ONLY) CD-BA250H 1. AM Loop Antenna 2. FM Antenna 3. Operation Manual 4. Quick Guide 5. Warranty Card 6. Sheet, Notice 7. Label, Serial Nimber 8. Label, Saving Energy 9. Label, Feature, Tape1 10. Label, Feature, Tape2 11. Polyethylene Bag, Accessories 12. Packing Case 13. Packing Add. 14. Bottom Pad 15. Top Pad 16. Polyethylene Bag, Unit 17. Polyethylene Bag, AC Power Supply Cord 18.