Audiovox DM8900-00 User manual

Page
CONTENTS
COMPACT DISC COMPACT PLAYER
DM8900-00
PRODUCT SAFETY NOTICE
Specifications ....................................................................................................................................................3
Performance Specifications ............................................................................................................................... 4
Electrical Parts List ............................................................................................................................................ 5
Printed Circuit Boards ........................................................................................................................................ 8
Wiring Diagram ................................................................................................................................................ 10
Voltage Chart ................................................................................................................................................... 11
IC Block Diagrams & IC Pins Description ........................................................................................................ 13
Block Diagram .................................................................................................................................................. 16
Exploded Drawing and Mechanical Parts List ................................................................................................. 17
Schematic Diagram .......................................................................................................................................... 19
Many electrical and mechanical parts in this chassis have special safety characteristics.
These safety characteristics often pass unnoticed and the protection afforded by them cannot
necessarily be obtained by using replacement components rated for higher voltage, wattage, etc.
Replacement parts that have these special safety characteristics are identified in this manual
and its supplements; electrical components having such features are identified by in the
schematic diagram and the parts list.
Before replacing any of these components, read the parts list in this manual carefully.
The use of substitute replacement parts that do not have the same safety characteristics as
specified in the parts list may create shock, fire or other hazards.

3
+
SPECIFICATIONS
General
Compact disc digital audio system
• Digital filter two-time oversampling
• Three-spot optical pick up
Output (at 1kHz 0dB Level) Line output (stereo minijack)
Output level 0.4V(Rms) at 47K at 1kHz
Headphones/earphone (stereo minijack)
15 mW + 15 mW at 16
to 32
Power requirements 2 size AA (LR6 or SUM-3) alkaline batteries, or DC IN 6V,
450mA power adaptor
Polarity of plug
Dimensions Approx. 128 x 31 x 137 mm (w/h/d)
Weight Approx. 205g (not incl.batterries)
Operating voltage:
U.S.A., Canada: Middle East and Australia: UK and Germany:
120V AC ± 5% 60Hz 240V AC ± 5% 50Hz 230V AC ± 5% 50Hz
Chile: Singapore, Malaysia & Thailand: Japan:
230V AC ± 5% 50Hz 200-240V AC ± 5% 50Hz 100V AC ± 5% 50/60Hz
Design and specifications are subject to change without notice.
Ω
ΩΩ

4
Power Supply
: AC - DC Adaptor
100V: 6V DC 60Hz Battery:3V (AA x 2)
120V: 6V DC 60Hz
230V: 6V DC 50Hz
Lineout Load : 47Kohm
Headphone Output : 16ohm or 32ohm
Reference Output : 5mW
Input Signal Source : CBS SONY YED7 (PTD-001) SONY
PHILIPS SBC 444A (TDC-725, TDC-731, TDC-712) A.Bex
GENERAL TEST CONDITION
PERFROMANCE SPECIFICATIONS
UNIT NOMINAL LIMIT
1. 10% THD Output Power (1kHz, 0dB) (16 or 32ohm) mW -15
*2. Signal to Noise Ratio (1kHz) dB 76 70
*3. Channel Separation (1kHz, 0dB) dB 55 45
*4. Total Harmonic Distortion 1kHz %0.3 1
5. Bass Boost Measured Signal is 0dB at 100Hz, dB 8+3-2
Where Output Power is 5mW & Down by 20dB at 32ohm Loading dB
6. Frequency response (1kHz, 0dB) 100Hz dB ±1 ±3
10kHz dB ±1 ±3
20kHz dB ±3 ±6
*with External A Filter
LINE OUT
UNIT NOMINAL LIMIT
1. Output (1kHz, 0dB) 47kohm Vrms 0.6 0.5
*2. Signal to Noise Ratio (1kHz, 0dB) dB 82 76
*3. Channel Separation 1kHz dB 70 60
*4. Harmonic Distortion 1kHz %0.2 0.3
5. Dynamic Range dB 76 70
6. De-emphasis 16kHz Signal with Emphasis Recording (-9.04dB as 0dB) dB 0±1
5kHz Sgnal with Emphasis Recording (-4.53dB as 0dB)
7. Channel Balance (1kHz, 0dB) dB 0.5 1
8.
Frequency Response (1kHz, 0dB)
100Hz dB ±1 ±3
10kHz dB ±1 ±3
20kHz dB ±3 ±6
PLAYABILITY TESTING
UNIT
1. Interruption (PHILIPS SBC-444A) mm
2. Black Dot (PHILIPS SBC-444A) mm
3. Finger Print (A. Bex TCD-725) µm
4. Vertical (A. Bex TDC-731A) mm
5. Eccentricity (A. Bex TDC-732) µm
150
0.6
0.6
65
0.5
TEST ITEMS
EARPHONE OUTPUT
TEST ITEMS
TEST ITEMS
LIMIT

5
Ref. No. Description Mfr's Part No. Qty.
MAIN BOARD PCB CDM52-01-01 122x199x0.8mm/2 (FR4) 033-0CDM52-100 1
DOUBEL-SIDED
CONTROL BOARD PCB CDM52C-01-02 125x176x1.0mm/12 (94HB) 033-CDM52C-100 1
FLASH GOLD
RESISTORS
R604,605 CHIP RESISTOR 33 ohm +-5% 1/10W (0805/2012) 001-333050-010 2
R320,609,245 CHIP RESISTOR 10 ohm +-5% 1/16W (0603/1608) 001-310052-016 3
R601 CHIP RESISTOR 100 ohm +-5% 1/16W (0603/1608) 001-310152-016 1
R104,217,243,309,310, CHIP RESISTOR 1 Kohm +-5% 1/16W (0603/1608) 001-310252-016 8
315,316,608
R107,109,222,223,240, CHIP RESISTOR 10 Kohm +-5% 1/16W (0603/1608) 001-310352-016 14
241,218,511,513,117,118,
119,501,506
R510,512,509,514,323, CHIP RESISTOR 100 Kohm +-5% 1/16W (0603/1608) 001-310452-016 10
508,311,312,603,613
R122,242 CHIP RESISTOR 1 Mohm +-5% 1/16W (0603/1608) 001-310552-016 2
R317,318 CHIP RESISTOR 12 Kohm +-5% 1/16W (0603/1608) 001-312352-016 2
R202,615,111 CHIP RESISTOR 15 Kohm +-5% 1/16W (0603/1608) 001-315352-016 3
R114,142,201 CHIP RESISTOR 150 Kohm +-5% 1/16W (0603/1608) 001-315452-016 3
R502 CHIP RESISTOR 1.8 Kohm +-5% 1/16W (0603/1608) 001-318252-016 1
(MCR03EZHJ-182)
R620 CHIP RESISTOR 18 Kohm +-5% 1/16W (0603/1608) 001-318352-016 1
R101 CHIP RESISTOR 220 ohm +-5% 1/16W (0603/1608) 001-322152-016 1
R602,612 CHIP RESISTOR 22 Kohm +-5% 1/16W (0603/1608) 001-322352-016 2
R129,130,219 CHIP RESISTOR 220 Kohm +-5% 1/16W (0603/1608) 001-322452-016 3
R503 CHIP RESISTOR 2.7 Kohm +-5% 1/16W (0603/1608) 001-327252-016 1
R504 CHIP RESISTOR 3.3 Kohm +-5% 1/16W (0603/1608) 001-333252-016 1
R215 CHIP RESISTOR 33 Kohm +-5% 1/16W (0603/1608) 001-333352-016 1
R132 CHIP RESISTOR 39 Kohm +-5% 1/16W (0603/1608) 001-339352-016 1
R244 CHIP RESISTOR 390 Kohm +-5% 1/16W (0603/1608) 001-339452-016 1
R616 CHIP RESISTOR 47 ohm +-5% 1/16W (0603/1608) 001-347052-016 1
R126,505 CHIP RESISTOR 4.7 Kohm +-5% 1/16W (0603/1608) 001-347252-016 2
R124,125,128,127,220, CHIP RESISTOR 47 Kohm +-5% 1/16W (0603/1608) 001-347352-016 6
305 (MCR03EZHJ-473)
R105,112 CHIP RESISTOR 4.7 ohm +-5% 1/16W (0603/1608) 001-347852-016 2
R610 CHIP RESISTOR 5.6 Kohm +-5% 1/16W (0603/1608) 001-356252-016 1
R617 CHIP RESISTOR 6.2 Kohm +-5% 1/16W (0603/1608) 001-362252-016 1
R221,313,314 CHIP RESISTOR 6.8 Kohm +-5% 1/16W (0603/1608) 001-368252-016 3
R614 CHIP RESISTOR 680 Kohm +-5% 1/16W (0603/1608) 001-368452-016 1
R322 CHIP RESISTOR 75 Kohm +-5% 1/16W (0603/1608) 001-375352-016 1
R108,231,232 CHIP RESISTOR 8.2 Kohm +-5% 1/16W (0603/1608) 001-382252-016 3
VR101 SEMI-FIXED 47K EVND8AA03BQ4 MATSUSHITA 002-473085-001 1
VR-C16M&G&010KA&SH&D (ROTARY VOLUME) 030-C10103-205 1
RC1001GAX0A-HA1-A103-B28B160B01-N
CAPACITORS
C604,612,122 CHIP CAP 0.001 uF/50V +-10% (0603/1608) 003-510212-050 3
(MCH185C102KK/GRM39X7R102K50PT)
C107,109,227,225,807 CHIP CAP 0.01 uF/25V +-10% (0603/1608) 003-510312-025 5
(MCH185C103KK/GRM39X7R103K25PT)
C137,327,330,606,123, CHIP CAP 1 uF/16V +80-20% (0805/2012) 003-510580-016 8
240,241,310 (EMK212F105ZG-T) (MCH213F105ZP)
ELECTRICAL PARTS LIST

6
Ref. No. Description Mfr's Part No. Qty.
C609,610,139,134,120, CHIP CAP 0.1 uF/16V +80-20% (0603/1608) 003-510482-016 21
217,220,201,205,506,501, (MCH182F104ZK/GRM39Y5V104Z16PT)
601,302,320,116,215,228,
229,509,126,504
C114,125,130,313,314 CHIP CAP 0.0022 uF/50V +-10% (0603/1608) 003-522212-050 5
(UMK107B222KZ-TM)
C221 CHIP CAP 0.22 uF/16V +80-20% (0603/1608) 003-522482-016 1
C605,124 CHIP CAP 0.0033 uF/50V +-10% (0603/1608) 003-533212-050 2
C216 (F003-547312-050) CHIP CAP 0.047 uF/16V 003-547312-016 1
+-10% (X7R) (0603/1608) (TMK107F473ZZ-T)
C127 CHIP CAP 0.0068 uF/50V +-10% (0603/1608) 003-568212-050 1
C203,204,135 CHIP CAP 15 pF/50V +-5% NPO (0603/1608) 003-615052-050 3
(UMK107CH150JZ-TM)
C138 CHIP CAP 2 pF/50V +-0.25pF NPO (0603/1608) 003-620832-050 1
C231 (F003-527012-050) CHIP CAP 27 pF/50V 003-627052-050 1
+-5% NPO (0603/1608) (UMK107CH270JZ-TM)
C226 CHIP CAP 33 pF/50V +-5% NPO (0603/1608) 003-633052-050 1
(GRM39COG330J50PT/MCH185A330JK)
C303,304 (F003-633151-050) CHIP CAP 330 pF/50V 003-633152-050 2
+-5% NPO (0603/1608) (GRM39C0G331J50PT)
C616 CHIP CAP 47 pF/50V +-5% NPO (0603/1608) 003-647052-050 1
C611,117 CHIP CAP 470 pF/50V +-5% NPO (0603/1608) 003-647152-050 2
C105 CHIP CAP 5 pF/50V +-0.25% NPO(0603/1608) 003-650832-050 1
(GRM39COG050C50PT/MCH185A050CK)
C222 ELECT CAP 2.2 MFD/50V +-20% (SMALL SIZE) (4x7) 006-102000-50D 1
C332,112 ELECT CAP 3.3 MFD/50V +-20% (SMALL SIZE) (SRA/4x7) 006-103000-50C 2
C301,315,316,305,306, ELECT CAP 4.7 MFD/50V +-20% (SMALL SIZE) (4x7) 006-104000-50D 7
136,508
C218 ELECT CAP 10 MFD/16V +-20% (SMALL SIZE) (4x7) 006-110000-16D 1
C331,552 ELECT CAP 22 MFD/16V +-20% (SMALL SIZE) (4x7) 006-122000-16D 2
C608 ELECT CAP 220 MFD/10V +-20% (SMALL SIZE) (6.3x7) 006-122100-10D 1
C613 ELECT CAP 33 MFD/16V +-20% (SMALL SIZE) (5x7) 006-133000-16D 1
C219 ELECT CAP 47 MFD/10V +-20% (SMALL SIZE) (5x7) 006-147000-10D 1
C322,108,214,230,319, ELECT CAP 100 MFD/6.3V +-20% (SMALL SIZE) (5x7) 006-210100-06D 7
110,115
C334,335,603,602 ELECT CAP 220 MFD/4V +-20% (SMALL SIZE) (MAD/6.3x5) 006-222100-04C 4
TRANSISTORS
Q101 TRLPNPSST-RAD&&&-&&& 2SA1774 008-101774-000 1
Q602,603 TR NPNGEN-RAD&SC-072 008-304115-000 2
2SC4115SR/Q/S/STPR/STPQ/STPS
Q104,301,303,304 TRLNPNSST-RAD&&&-&&& DTC114TE 008-A00114-F00 4
Q103,305 TRLPNPSST-RAD&&&-&&& DTA144TE 008-A00144-600 2
Q601 TR PNPPWR-BUK&SC-062 2SB1132Q (ROHM) 008-A01132-000 1
INTEGRATED CIRCUITS
IC501 ICMCU-16K-LCD BU34581-5G 4 BIT 1 CHIP CPU 010-353458-002 1
IC201 ICCDP-005CDSP BU9526KS CD SERVO LSI 010-359526-000 1
IC301 IC BA3579FS 010-403579-000 1
IC601 IC BA5901K 010-405901-000 1
IC101 ICCDP-005CASP BA6387K CD RF AMPLIFIRE 010-406387-000 1
DIODES
D602
DIODE 1SS133 (T-72) (87-020-465-08) 011-000133-000
1
ELECTRICAL PARTS LIST - CONTINUED

7
Ref. No. Description Mfr's Part No. Qty.
D607 DIODE RB100A/1S40 011-000100-000 1
D601,702 RECTIFIER IN-4001B 011-024001-000 2
D301,501 CHIP DIODE DAN222 011-040222-001 2
INDUCTORS
L601 IFT R0002-CY68-950M-825549 10mm 012-825549-010 1
L602 INDUCTOR 10uH +-10% RL4055-100K 5x7.5mm 018-010015-200 1
w/UL TUBE =018-010015-000
L603 INDUCTOR 33 uH +-10% RL4055-330K 018-010336-200 1
w/UL TUBE =018-010336-005
L501 CHOKE COIL 100uH/RL4055-101K BLUE 018-030014-000 1
RESONATOR
X101 CERAMIC RESONATOR 16.93 MHz ZTA16.93MX 020-001693-005 1
(ZHEJIANG JIAKANG)
SWITCHES
SW509 TACT SW (DETECTOR SWITCH) ESE11SV1 1P1T 021-001111-000 1
151E-SE-11SV1 (RxO) DS-20
SW301 SLIDE SW 1P2T SSH-12-4403/SK12D07VG3NSA 025-120031-100 1
SW510 SLIDE SW 1P2T SSH-12-4403/SK12D07VG3NSA 025-120031-100 1
WIRES
JP WIRE AWG26#1007 3x3mm 40mm BLACK 051-673040-009 1
FFC CABLE 17 PINS L=55mm P=1mm UL2896 040-170055-100 1
SMCD-17x48-ESX8(BL)P1.0-S4+3-K-F-M-N(35)
MISCELLANEOUS
HEADPHONE SET #XBS-15 114-000015-000 1
APD-EI35VDE&350MA/SO 230V:6Vdc VDE STD 133-020635-001 1
(35V-D0635) w/MADE IN CHINA
LCD-P-02D-2616SM000P JT4-00033 112-000033-000 1
26x16x2.8mm REFLECTIVE/POSITIVE
CD&-PTC-01-SAN&-N CD MECHANISM TYPE:DA23 153-000023-000 1
(SANYO)
L1,302,304,305,201 BEAD COIL #B3534/BA1203033534 100MHz 037-003534-100 5
w/FERRITE CORE (K6/CORE-TECH) (H6A/HUOHYOW)
L303 TOROIDAL COIL BA1203030835 100MHz 037-120835-100 1
L301 TOROIDAL COIL T953628-1/TX2409033628-1 037-953628-260 1
w/FERRITE CORE (K6/CORE-TECH) (H6A/HUOHYO)
HEAT SEAL CONN 13 PINS 13mm PITCH:1mm 059-130013-100 1
YUTEK/TAIWAN 1310S-13C
HEADPHONE JACK HSJ1715-01-112 (GREEN) 116-001715-000 1
TC38-072-02/EJS-3-0935G
HEADPHONE JACK HSJ1715-01-110 (BLACK) 116-001715-001 1
TC38-072-01/EJS-3-0935B
POWER JACK DC,470 (HE0470-01-230) 120-100470-000 1
HEADER JST 6 PINS W150V-06T PITCH 1.5mm 135-B06BZR-061 1
VERTICAL TYPE
FFC CONN SOCKET 16PINS P:1mm TAIKO DENKI 135-TOCA16-160 1
HORIZONTAL TOC-A16X-B2/D100-SRA-16
FFC CONN SOCKET 17 PINS P=1mm 135-TOCB17-171 1
#GF102-17S-TS (=135-TOCB17-170)
ELECTRICAL PARTS LIST - CONTINUED

C508
C332
L201
CN501
C603
C115
C334
C108
C335
C214
C230
C319
C552
C218
C219
VR301
C306
C301
D601
VR101
X201
L301
L304
L302
L303
C316
CDM52(REV-1)
033-0CDM52-100
08-MAY-2000
PRINTEDCIRCUITBOARDS
MAINBOARD
CDM52-01-01
TOPVIEW
8

R130
R117
Q101 C105
C114
R142
C606
C212
R604
R118
C138
C126
R244
IC701
C229
R125
R215
R220
C231C201
C125
C220
R128
Q104
C226
IC501
R605
R221
R202
R511
C601
TP605
C612
C611
IC301
Q701
C216
R322
R218 R223
R232
C203
R305
C221
C304
R231
Q103
R107
R318
C139
C205
C227
R603
R114
C135
R309
R501
R316
R608
TP604
C506
R323
C303
R314
C704
R320
R313
R315
Q305
TP103
R222
R310
R321
C701
D701
C109
C137
R217
R311
R514
R317
TP101
R702
R701
R703
R601
Q602
C310
TAP502
TAP503
TAP501
TP602
TP601
TP501
TP603
Q603
C117
R219
R111
C801
C804
C805
C808
C550
C809
C250
R250
MAINBOARD
CDM52-01-01
BOTTOMVIEW
CONTROLBOARD
CDM52C-01-02
9

WIRINGDIAGRAM
10

11
VOLTAGE CHART
THE MEASURED VALUE IS DC VOLTAGE
UNIT:V
TEST CONDITION: CD PLAY
IC501 (BU34581-5G)
PIN'S NUMBER 12345678
01.49 0 0 0 0 0 0
PIN'S NUMBER 9 10 11 12 13 14 15 16
1.49 1.49 0 0 0 1.54 1.49 1.49
PIN'S NUMBER 17 18 19 20 21 22 23 24
03.11 3.10 3.10 0 0 3.10 3.10
PIN'S NUMBER 25 26 27 28 29 30 31 32
3.10 03.10 3.06 0.05 000
PIN'S NUMBER 33 34 35 36 37 38 39 40
3.05 3.02 0.15 02.82 0.99 0 0
PIN'S NUMBER 41 42 43 44 45 46 47 48
3.08 0.03 3.11 3.07 03.07 3.09 0
PIN'S NUMBER 49 50 51 52 53 54 55 56
1.46 1.53 03.07 3.10 3.10 2.87 3.10
PIN'S NUMBER 57 58 59 60 61 62 63 64
2.85 02.86 01.45 1.45 1.45 1.45
IC601 (BA5901K)
PIN'S NUMBER 1 2 3 4 5 6 7 8 9 10 11
4.84 5.96 3.08 0.84 0.13 0.62 1.19 0.02 0.78 0.17 0.14
PIN'S NUMBER 12 13 14 15 16 17 18 19 20 21 22
3.11 3.02 0.62 3.11 1.57 01.57 3.10 1.59 01.53
PIN'S NUMBER 23 24 25 26 27 28 29 30 31 32 33
01.12 0.09 00000000
PIN'S NUMBER 34 35 36 37 38 39 40 41 42 43 44
00.12 0.88 5.80 1.55 5.74 3.05 0.05 5.90 00.47
IC201 (BU9526KS)
PIN'S NUMBER 12345678910
1.57 1.48 3.11 1.67 1.55 0.3 1.56 1.56 0 0
PIN'S NUMBER 11 12 13 14 15 16 17 18 19 20
1.03 3.04 1.56 1.57 3.10 1.51 1.54 1.55 1.55 1.56
PIN'S NUMBER 21 22 23 24 25 26 27 28 29 30
1.56 1.56 1.54 1.57 1.62 1.56 1.58 1.64 0.30 0
PIN'S NUMBER 31 32 33 34 35 36 37 38 39 40
0 0 0.03 00.28 3.07 0 0 3.09 3.11
PIN'S NUMBER 41 42 43 44 45 46 47 48 49 50
3.10 3.10 03.10 000000
PIN'S NUMBER 51 52 53 54 55 56 57 58 59 60
1.44 3.11 01.55 1.05 1.52 0000
PIN'S NUMBER 61 62 63 64 65 66 67 68 69 70
01.02 0 0 1.55 0 0 1.55 1.01 1.51
PIN'S NUMBER 71 72 73 74 75 76 77 78 79 80
1.48 0 0 0 0 0 3.11 0 0 1.51

12
VOLTAGE CHART - CONTINUED
ALIGNMENT SET-UP PROCEDURES
There is no need to adjust the CD servo PWB. Because auto-adjustment function has been set by the CPU.
IC301 (BA3579FS)
PIN'S NUMBER 1 2 3 4 5 6 7 8 9 10
01.48 01.47 01.39 00.70 0 0
PIN'S NUMBER 11 12 13 14 15 16 17 18 19 20
1.54 0.70 1.54 01.54 0.69 1.00 01.00 3.11
IC101 (BA6387K)
PIN'S NUMBER 12345678
1.56 0.97 01.18 1.49 2.21 02.32
PIN'S NUMBER 9 10 11 12 13 14 15 16
01.15 2.21 3.05 1.54 000
PIN'S NUMBER 17 18 19 20 21 22 23 24
1.58 01.77 1.08 3.11 1.56 1.35 1.56
PIN'S NUMBER 25 26 27 28 29 30 31 32
1.56 1.56 1.56 1.56 1.58 1.56 1.56 1.56

13
IC201 BU9526KS
IC BLOCK DIAGRAMS & IC PINS DESCRIPTION
IC301 BA3579FS
WINDOW
PLL
SUB
ECC
16K SRAM
SERVO
FILTER CLVSERVO
CONTROLUCOM
INTERFACE
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
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
41
42
43
80
79
78
77
76
75
74 73
72
71
70
69
68
67
66
65
64 63
62 61
ASY
EYE
AVDD
FCO
PCO
PLLSW
VC
ADPFI
ADPFO
AGND
RVCO
FOK
FEIN
FCAPA
FON
TEIN
ATS
TZC
TCAPA
COMPC
C1FX
C2FX
C2F3
C2F4
DFDCK
DFDIN
DFLRCK
DGND3
AVDD2
LOUT
VC
ROUT
AGND2
VSS
RMUTE
LMUTE
DVDD3
DECTR
WFCK
RFCK
ADJ1
ADJ2
FDOUT JUMPO
TDOUT
SDIN
SDOUT
CLVOUT
MUTE
DGND
DEFECT
MIRROR
SUBSYQ
SUBDATA
SUBCK
MCK
DIN
DOUT
RW
BUSY
XPLCK SENS GFS DVDD XBUFO XOUT XIN RESET DGND CLK DOCK DOUTA LRCK DE C2F C2CLK C1F1 C1F2 C2F1 C2F2
OSC
SYSCK
DVDD
AVDD
VC
8F DF+DAC
PVCC POUT1 PGND POUT2 BBSW
LP VIN4
VIN3 MUTE1 BIAS
AVDD
AVDD
VIN1
PRE GND
VIN2
LOUT2 LOUT1
MUTEOUT
PWSW
PWSW1
MUTE
20
1
19
2
18
3
17
4
16
5
15
6
14
7
13
8
12
9
11
10
PVCC
-
-
+
+
BBSW
AVDD
~
~
++
20 k
20 k
20 k
20 k
20 k 20 k
100 p 47 k
47 k
47 k
47 k
100 p
100 p
100 p
PVCC
PWSW
MUTE
BB

14
IC501 BU34581-5G
PWCOIA
ADC83A
8CH-8BIT
/DIGITAL-IN
SI004B
SI004B
LCD07A
COMMON
GEN.
BIAS
GEN.
DISP.
SEGMENT
DRIVER
SEG00~03
SEG04~07
SEG08~11 SEG12~15 SEG16~19
COM0~3
ADC0~7
SCK1 SIO1 SIN1 SCK0
SIN0
P20~P23
P00~P03 P10~P13
BIN T0.T1
PWC
W0~W3
TMR03B
STP04A
BIx03A
PIO11A
PIO11A
PIO11A
INSTRUCTION
DECODER
ROM
16384x8
BIT
DPH
DPL
EHLALU
FLAG
FLAG
STK
AccXY
CLOCK
GEN
SIO0
PC STACK 8PC INC RAM
512x4 BIT
RESET
RESET
OSCO3A
STP
CPUO2A
TEST
INTERRUPT
CONTROLIRQ
L-BUS
U-BUS
OSC1
OSC2
SYSTEM
CLK
STP
STP
IRQ IRQ IRQ IRQ IRQ IRQ
E
IC101 BA6387K
HOLD BLOCK
SCRATCH
CONTROL
FOCUS
SWITCH
GAIN 6dB
DET BLOCK
PS PL BL BS
+
+
+
+
+
+
+
+
+
+
+
+
++
+
RAMP
OSC
1
1718
18
192021
2223
24
25
26
27
28
29
30
31
329
10
11
12
13
14
15
16
234 5 678
F
FO
AGND
FI
CAPC
LD
PD
R/H
SC
TE
FON
FOK
FE
DEFECT
MIRR
EFM
E
FE
VB
FEB
D
C
A
B
RF RFO
RF1
VCC
PLH
BLH
CACC
ASY
FOK
TRO
45
20k
20k
20k
20k
20k
20k
20k
20k
0.6V
FOK
+
LOOP ON
FOCUS BIAS
+
+
18
1M 100k
2.64k
13.3k
B L 20k
P L 20k
5p
50k
TEO
402k
12p
2k
10k
2k
250k
12k
12p 5p
50k
0.2V
100k 100k 30p
30p
160k
160k
10k
2k
2k
2k
2k
60k
60k
10k
10k
44.7k
44.7k
20k
20k
MUTE
high-off
39k
39k
µ

15
IC601 BA5901K PINS DESCRIPTION
Pin No. Pin Name Function
1BSEN Battery voltage monitor terminal
2BATT Battery power supply input terminal
3RESET Cassette detection output terminal
4DEAD Dead-time setting terminal
5SW Booster transistor drive terminal
6EO Error amplifier output terminal
7EI Error amplifier input terminal
8SPRT Short-circuit protection setting terminal
9CT Triangular wave output terminal
10 N.C
11 OP- Operational amplifier negative input terminal
12 VSYSI Control circuit power supply input terminal
13 OPOUT Operational amplifier output terminal
14 OP+ Operational amplifier positive input terminal
15 VSYS2 Pre-driver power supply input terminal
16 VREF Reference power supply input terminal
17 IN3 CH3 control signal input terminal
18 IN4 CH4 control signal input terminal
19 MUTE34 CH3/CH4 mute terminal
20 IN2 CH2 control signal input terminal
21 MUTE2 CH2 mute terminal
22 IN1 CH1 control signal input terminal
23 BRAKE1 CH1 brake terminal
24 OUT4R CH4 negative output
25 OUT4F CH4 positive output
26 OUT3R CH3 negative output
27 OUT3F CH3 positive output
28 POWGND Power unit power supply ground
29 OUT2F CH2 positive output
30 OUT2R CH2 negative output
31 OUT1F CH1 positive output
32 OUT1R CH1 negative output
33 RCHG Charging current setting terminal
34 AMUTE Reset inversion output terminal
35 EMP "Empty" detection output terminal
36 HVCC H-bridge power supply input terminal
37 PSW PWM transistor drive terminal
38 CLK External clock synchronization input terminal
39 START Boost DC/DC converter starting terminal
40 OFF Boost DC/DC converter OFF terminal
41 CHGVCC Charging circuit power supply input terminal
42 SEL "Empty" detection level switching terminal
43 PREGND Pre-unit power supply ground terminal
44 PWMFIL PWM phase compensation terminal

16
BLOCK DIAGRAM
IC201
BU9526KS
2
12
75 74
51
49
26 27 22 24
IC101 BA6387K
16 12
48 45 35 44
57 58
61 62 63
642 3 5 9 11 12 13 14 15
IC501 BU34581-5G
32 31 30 29 25 26 27 24
39
IC601 BA5901K
22 20
18
17
2
15
IC301
BA3579FS
19
17
LINE JACK
HP JACK
SERVO CONTROL LINE
LCD501
KEY (SW501-SW507)
R601 C604
Q603
L601
J601 DC JACK
Q101
X201
J301
J302
TP605 SVCC
TP604 GND
23
SW509
SW510
CN501 CN502
BATT 3V
CN101
CN603
BUS
D501
SSP DSP
AMP
CPU
DRIVER
25
26
27 28 30 32
EFM EYE
FOKFOK
761
SLED+
INNER
GND
DISC+
DISC-
F+ T+
T - F -
VR
MD
LD
GND
Vcc
Vc
F
B
D
A
C
E
SLED-
2 4 5 6
SVCC
R112

17
EXPLODED DRAWING & MECHANICAL PARTS LIST
Ref. No. Mfr's Part No. Qty.
1DISPLAY PLATE, 0.5mm THK, TRANSPARENT PVC, w/o PRINTING 650-890003-000 1
2CD DOOR, MOLD C.GR 2C (ABS), w/SPY & PNT 500-890001-xxx 1
3MIDDLE CAB (w/LOCK), MOLD D.GR (1524A), (ABS) CAV:2, 500-890302-000 1
(SONY/SANYO/SAMSUNG/THOMSON)
4CD DOOR SPRING, DIA:0.7mm SPRING WIRE (NICKEL PLATED) 561-890318-000 1
5CD DOOR PIN, SUS 405 609-890317-000 2
6CD KNOB SET, MOLD C.GREY 5C (ABS), w/SPY 510-890002-xxx 1
7LCD-P-02D-2616SM000P JT4-00033, 26x16x2.8mm REFLECTIVE/POSITIVE 112-000033-000 1
8CONTROL BOARD CDM52C-01-02 125x176x1.0mm/12 (94HB), 033-CDM52C-100 1
FLASH GOLD
9PCB COVER, MOLD D.GREY (1524A) (ABS) CAV:4 500-890308-000 1
10 CD&-PTC-01-SAN&-N CD MECHANISM TYPE:DA23 (SANYO) 153-000023-000 1
11 CD CUSHION (RUBBER) 700-890314-000 3
12 CD MECH BRACKET, MOLD D.GREY(1524A) (ABS) CAV:2 (FOR SANYO) 505-890312-000 1
13 OPEN KNOB, MOLD D.GREY(1524A) (ABS) CAV:4 510-890306-000 1
14 DOOR LOCK, MOLD D.GREY(1524A) (PC) CAV:6 509-890309-000 1
15 DOOR LOCK SPRING, DIA:0.6mm, SPRING WIRE (NICKEL PLATED) 561-890322-001 1
16 POWER JACK DC, (HE0470-01-230) 120-100470-000 1
17 HEADPHONE JACK HSJ1715-01-112 (GREEN), TC38-072-02/EJS-3-0935G 116-001715-000 1
18 VR-C16M&G&010KA&SH&D (ROTARY VOLUME), 030-C10103-205 1
RC1001GAX0A-HA1-A103-B28B160B01-N
19 HEADPHONE JACK HSJ1715-01-110 (BLACK), TC38-072-01/EJS-3-0935B 116-001715-001 1
20 SLIDE KNOB, MOLD D.GREY(1524A) (ABS) CAV:8 510-890307-000 2
21 BATTERY SPRING (+), DIA:0.7mm SPRING WIRE w/NICKEL 535-890320-000 1
22 BATTERY SPRING (-), DIA:0.7mm SPRING WIRE w/NICKEL 535-890321-000 1
23 MAIN BOARD CDM52-01-01 122x199x0.8mm/2 (FR4) DOUBEL-SIDED 033-0CDM52-100 1
24 BATTERY SPRING (+/-), DIA:0.7mm SPRING WIRE w/NICKEL 535-890319-000 1
25 BOTTOM CABINET (w/LOCK), MOLD D.GREY(1524A) (ABS) CAV:2 500-890303-000 1
26 BATTERY DOOR, MOLD D.GREY(1524A) (ABS) CAV:4 500-890310-000 1
FIBRE WASHER Ø2.6xØ6x0.4mm FOR MECHA 532-302606-040 2
RUBBER WASHER, DIA:8x3.2x0.6mm BL. (SILICON) 532-700108-330 2
RUBBER FOAM, 28x4x2mm 700-880117-000 0.18
SPK. BOX FELT 80x8x0.3mm, BLACK 700-993856-000 0.12
SCREW 2x5mm PB T.T.S. w/CHROMATE PLATED (PTTP 2.0x5.0 MC) 722-020200-052 1
SCREW 2x6mm PB T.T.S. NI (01 PTP 2x6 NI) 4/CD MECHA.BKT. 722-020200-060 4
SCREW 2x8mm PB T.T.S. w/CHROMATE PLATING (PTTP2x8MC) 5/BOTT.CAB. 722-020200-082 5
SCREW 1.7x3mm B TYPE T.T.S. BLACK (H=3.0/=T=0.2), 722-060177-301 4
(#OK-BT3002-1.7x3.0AB)
CD SCREW, STEEL 723-048903-000
3
Description

18
EXPLODED DRAWING

20
19
NOTES:
1.Allresistancevaluesareindicatedin“ohms”(k=1000ohms.M=1000kohms).
2.Allcapacitancevaluesareindicatedin“µF”(p=10µF).
-6
SCHEMATICDIAGRAM

ALCO ELECTRONICS LTD
APRIL, 2002
Printed in Hong Kong 808-890000-020
NOTES: