How it Works
Sanyo
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MDG-077
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Sanyo MDG-077, MDGX-5 Service manual

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Page 1
FILE NO.
Service Manual
z/ON
SLEEP
CD/MD REPEAT
MD k
REC MUTE
MD PLAY MODE
TAPE m
MD m
TAPE TAPEMD
aaba
c
fde
n
DISC SELECT
CD kCD
TUNER/BAND
RANDOM PRESET
SHIFT
MEMORYFM MODE
1234
REC MODE
AUTO MARKER
SCROLL
5678
DISPLAY MODE
+10+
100
90
VIDEO
SUPER
MUTE
—
VOLUME
+
BASS
—20dB
REMOTE CONTROLLER RB-007
Separate Mini Component System
MD Deck
MDG-X5 (UK) MDG-077 (XE)

Specifications

Sampling frequency ......... 44.1 kHz
Laser output ..................... 7.04mW(Continuos wave max.)
Wave length ..................... 785mm
Wow/flutter ....................... Below measurable limits
Recording system ............ Magnetic modulation over write
Input/Output ..................... OPTICAL DIGITAL IN/OUT : Optical
Power supply ................... Supplied from the Tuner/Amplifier
Dimensions ...................... 270 (W) x 87 (H) x 285 (D) mm
Weight .............................. 2.3 kg
Specifications subject to change without notice.
PRODUCT CODE No. 137 088 08 (UK) 137 088 09 (XE)
REFERENCE No.
SM5810170
Page 2

LASER BAEM SAFETY PRECAUTION

• Pick-up that emits a laser beam is used in this CD player section.
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE
LASER OUTPUT..........0.6 mW Max. (CW)
WAVE LENGTH...........790 nm
(MD DECK)
CAUTION – INVISIBLE LASER RADIATION WHEN OPEN AND INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL – USYNLIG LASER STRÅLING VED ÅBNING, NÅR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ UDS ÆTTELSE FOR STRÅLING.
VARNING – OSYNLIG LASER STRÅLNING NÄR DENNA DEL ÄR ÖPPNAD OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR FARLIG. VORSICHT – UNSICHTBARE LASERSTRAHLUNG TRITT AUS, WENN DECKEL GEÖFFNET UND WENN SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN. VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
(XE)

REPLACEMENT AND LUBRICATION OF THE MD DOOR

Remove it from, and is a method MD door
1. A point of a coil(Front right side) is pinched with tweezers, and it is taken off a hole of MD door. A spring turns then, and seem not to be exhausted.
2. A ditch of a door is to be pushed from face, and MD door is taken off an axis.
3. MD door axis is avoided.
SYSTEM CONNECTOR
OPTICAL DIGITAL
IN
OUT
TB1401B
HOOK
MD door installation method
1. Put molykote (EM-30LG) on door contact department.
2. Fit turns an axis into ditch 2 places of MD door after installing door shaft, and install it with care in installation direction.
3. Pinch a point of coil spring with tweezers, and hang it on a hole of a door.
EM-30LG
- 1 -
Page 3

EXPLODED VIEW (CABINET,CHASSIS & MD MECHANISM)

11
Y04
Y04
Y04
Y04
Y04
MM03
Y03
Y06
54
Y07
16
54
Y06
Y07
53
Y08
76
52
77
Y09
75
Y09
54
Y06
MM00
Y03
71
4
MM02
MM01
12
54
54
73
9
74
Y03
10
13
72
Y03
7
1
2
Y01
Y01
3
5
Y01
8
6
51
- 2 -
15
14
Y02
(75)
Y05
Y02
Page 4

PARTS LIST

PRODUCT SAFETY NOTICE
EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC
!!
SYMBOL SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY OR PARTS WITH THE SAME RATINGS OF RESISTANCE, WATTAGE OR VOLTAGE THAT ARE DESIGNATED IN THE PARTS LIST IN THIS MANUAL. LEAKAGE-CURRENT OR RESISTANCE MEASUREMENTS MUST BE MADE TO DETERMINE THAT EXPOSED PARTS ARE ACCEPTABLY INSULATED FROM THE SUPPLY CIRCUIT BEFORE RETURNING THE PRODUCT TO THE CUSTOMER.
CAUTION : Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.
!
IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN BE OF
!!
!
, USE ONLY THE REPLACEMENT PARTS DESIGNATED,
Regular type resistors are less than 1/4 W carbon type and 0 ohm chip resistors. Regular type capacitors are less than 50 V and less than 1000 µF type of Ceramic type and Electrical type.
PACKING & ACCESSORIES
REF.NO. PART NO. DESCRIPTION
614 305 2135 CARTON CASE,INNER (DC-X5/UK) 614 305 2142 CARTON CASE,INNER (DC-077/XE) 614 302 0752 CUSHION,FRONT,FRONT 614 302 0769 CUSHION,BACK,BACK 645 036 4334 POLY SHEET-0750X0400*NC,
SET (DC-X5/UK)
645 036 4341 POLY SHEET-0750X0400*NC,
SET (DC-077/XE) 645 036 9643 CABLE,OPTICAL 614 302 5306 INSTRUCTION MANUAL (UK) 614 303 9822 INSTRUCTION MANUAL (XE) 614 307 0603 INSTRUCTION MANUAL,GREEK (XE)
CABINET & CHASSIS
REF.NO. PART NO. DESCRIPTION
1 614 302 8468 ASSY,CABINET,FRONT 2 614 305 1114 ASSY,DEC MD 3 614 302 4361 KNOB,ROTARY,JOG 4 614 302 4248 BUTTON,EJECT,OPEN/CLOSE 5 614 302 0530 DEC,WINDOW LED,PLAY COMPU REC 6 614 302 4255 BUTTON,EDIT 7 614 303 7330 BUTTON,PLAY,PLAY/PAUSE 8 614 302 4354 HOLDER,LED,COMPU REC 9 614 302 9687 REFLECTOR,LED,LEFT 10 614 302 4415 REFLECTOR,LED,RIGHT 11 614 304 7834 ASSY,CABINET,AFTER BENDING 12 614 303 6432 DEC,SHEET,LED,LEFT 13 614 302 4330 DEC,SHEET,LED,RIGHT 14 614 302 8956 ASSY,CABINET,BOTTOM 15 614 302 4385 PANEL,REAR,REAR (UK) 15 614 304 0057 PANEL,REAR,REAR (XE) 16 614 302 4378 MOUNTING,MD,MECHA
614 274 8190 LABEL,SAFETY,LASER
FIXING PARTS
REF.NO. PART NO. DESCRIPTION
Y01 411 021 3503 SCR S-TPG BIN 3X10,
FRONT-BOTTOM FIX
Y02 411 021 3701 SCR S-TPG BIN 3X10,
REAR-ELECT PART
Y03 411 021 3503 SCR S-TPG BIN 3X10,FRONT PWB FIX Y04 411 021 3701 SCR S-TPG BIN 3X10,CABINET Y05 411 021 3701 SCR S-TPG BIN 3X10,BOTTOM-REAR Y06 411 023 4003 SCR S-TPG PAN 3X10,MD MECHA Y07 411 021 3503 SCR S-TPG BIN 3X10,
MOUNTING-BOTTOM
Y08 411 020 9902 SCR S-TPG BRZ+FLG 3X8,TRANS Y09 411 021 3503 SCR S-TPG BIN 3X10,MAIN PWB
ELECTRICAL PARTS
REF.NO. PART NO. DESCRIPTION
51 645 036 9650 FLEXIBLE FLAT CABLE,
52 645 037 3190 FLEXIBLE FLAT CABLE,
!!
53 54 614 129 9082 LUG
!
645 034 8020 TRANS,POWER
MECHA-FRONT PWB
MECHA-POWER SUPPLY PWB
MD SWITCH P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
71 614 303 3851 ASSY,PWB,MD SW(Only Initial) CN543 614 035 4911 SOCKET,DIP 2P or 614 237 9752 SOCKET S5430 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5431 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT
MD FRONT P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
72 614 302 6792 ASSY,PWB,MD FRONT (Only Initial) CN530 614 303 1550 ASSY,WIRE CN531 614 302 4231 ASSY,WIRE CN532 645 034 8631 SOCKET,FPC 23P CN533 614 035 4911 SOCKET,DIP 2P or 614 237 9752 SOCKET CN534 614 035 4911 SOCKET,DIP 2P or 614 237 9752 SOCKET CN535 614 035 4911 SOCKET,DIP 2P or 614 237 9752 SOCKET D5301 408 037 4204 LED SLP-3118B-51HAB-T1 D5302 408 032 5404 LED SLP-9118C-51H-S-T1 FL501 645 034 8044 FLOURESCENT TUBE HL530 614 302 4347 HOLDER,FL,HOLDER-FL IC531 410 342 8303 IC M38197MAA-625FP IC532 409 427 7805 IC TC74ACT32FT L5961 645 001 4550 INDUCTOR,10U K or 645 031 7835 INDUCTOR,10U K L5962 645 001 4550 INDUCTOR,10U K or 645 031 7835 INDUCTOR,10U K Q5301 405 000 3400 TR DTC114TS or 405 109 9402 TR KRC111M Q5302 405 000 3400 TR DTC114TS or 405 109 9402 TR KRC111M Q5303 405 143 8706 TR KTC3199-GR or 405 017 9600 TR 2SC3330-T or 405 017 9709 TR 2SC3330-U or 405 011 8500 TR 2SC1740S-R or 405 011 8609 TR 2SC1740S-S
- 3 -
Page 5
PARTS LIST
REF.NO. PART NO. DESCRIPTION
Q5304 405 000 6104 TR DTC144ES or 405 146 1209 TR KRC104M Q5305 405 000 2205 TR DTA144ES or 405 146 1308 TR KRA104M Q5330 405 075 8102 TR DTA143ZS or 405 143 8904 TR KRA106M RA531 614 218 0525 RESISTOR S5301 645 034 8037 SWITCH,ROTARY(ENCODER) S5302 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5304 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5305 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5306 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5308 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5309 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5310 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5311 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5312 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT S5313 645 006 5958 SWITCH,PUSH 1P-1T or 614 220 5471 SWITCH,TACT or 614 240 1002 SWITCH,TACT X5301 645 027 5470 OSC,CERAMIC 8MHZ
MD LED2 P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
73 614 303 3875 ASSY,PWB,MD LED2 (Only Initial) CN545 614 035 4911 SOCKET,DIP 2P or 614 237 9752 SOCKET D5450 407 212 8907 LED HLMP-BB01-J0B00
MD LED1 P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
74 614 303 3868 ASSY,PWB,MD LED1 (Only Initial) CN544 614 035 4911 SOCKET,DIP 2P or 614 237 9752 SOCKET D5440 407 212 8907 LED HLMP-BB01-J0B00
MD POWER SUPPLY P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
75 614 302 6808 ASSY,PWB,MD POWER SUPPLY
C5021 403 057 0007 POLYESTER 0.01U J 50V C5905 403 329 6003 ELECT 4700U M 25V CN500 645 005 8134 PLUG,8P CN501 645 006 0861 PLUG,7P CN502 614 239 5455 SOCKET CN503 645 035 5769 SOCKET,FPC 26P CN572 407 212 5708 PHOTO COUPLE GP1F38R CN573 407 212 8709 PHOTO COUPLE TOTX140 or 407 210 0408 PC PHOTO COUPLE GP1F38T CN591 614 020 6548 SOCKET,2P or 614 223 9209 SOCKET CN592 614 020 6586 SOCKET,6P
!!
D5901 D5902 D5903 D5904 D5931
!
407 148 6701 DIODE 1A3-I
!!
!
407 148 6701 DIODE 1A3-I
!!
!
407 148 6701 DIODE 1A3-I
!!
!
407 148 6701 DIODE 1A3-I
!!
!
407 148 6701 DIODE 1A3-I D5932 407 100 0303 ZENER DIODE MTZJ36B D5933 407 063 9108 ZENER DIODE MTZJ6.8B HS501 614 264 0159 HEAT SINK IC503 409 185 6102 IC TC74HCU04AP IC571 409 384 3506 IC BA3314F IC572 409 426 1804 IC KIA4558S IC573 409 333 2505 IC BU4066BCF IC592 409 453 5400 IC NJM2930L85 IC593 409 382 0309 IC LA5620 L5701 645 001 4581 INDUCTOR,100U K or 645 031 7842 INDUCTOR,100U K L5801 645 001 4581 INDUCTOR,100U K or 645 031 7842 INDUCTOR,100U K L5901 645 001 4550 INDUCTOR,10U K or 645 031 7835 INDUCTOR,10U K L5902 645 001 4581 INDUCTOR,100U K or 645 031 7842 INDUCTOR,100U K L5903 645 006 3602 INDUCTOR,1.1UH L5904 645 006 3602 INDUCTOR,1.1UH L5905 645 006 3602 INDUCTOR,1.1UH L5951 645 001 5519 INDUCTOR,47U K LUG50 645 023 8987 FIXER,FIX_WIRE LUG51 645 023 8987 FIXER,FIX_WIRE
!!
PR591
!
645 027 4169 PROTECTOR,0.125A 125V Q5340 405 000 6104 TR DTC144ES or 405 146 1209 TR KRC104M Q5341 405 000 2205 TR DTA144ES or 405 146 1308 TR KRA104M Q5342 405 000 6104 TR DTC144ES or 405 146 1209 TR KRC104M Q5343 405 000 2205 TR DTA144ES or 405 146 1308 TR KRA104M Q5710 405 000 3400 TR DTC114TS or 405 109 9402 TR KRC111M Q5810 405 000 3400 TR DTC114TS or 405 109 9402 TR KRC111M Q5901 405 000 2205 TR DTA144ES or 405 146 1308 TR KRA104M Q5902 405 000 6104 TR DTC144ES or 405 146 1209 TR KRC104M Q5903 405 141 3505 TR KTA1266-Y or 405 141 3406 TR KTA1266-GR or 405 004 4502 TR 2SA608-F-NP or 405 004 5004 TR 2SA608-G-NP Q5904 405 143 8706 TR KTC3199-GR or 405 017 9600 TR 2SC3330-T or 405 017 9709 TR 2SC3330-U or 405 011 8500 TR 2SC1740S-R or 405 011 8609 TR 2SC1740S-S
- 4 -
(Only Initial)
Page 6
PARTS LIST
REF.NO. PART NO. DESCRIPTION
Q5905 405 007 3106 TR 2SB544-F-MP or 405 007 2901 TR 2SB544-E-MP Q5931 405 141 3505 TR KTA1266-Y or 405 141 3406 TR KTA1266-GR or 405 004 4502 TR 2SA608-F-NP or 405 004 5004 TR 2SA608-G-NP SA001 411 021 3503 SCR S-TPG BIN 3X10,FOR IC593
MD PT-PRE P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
76 614 303 3882 ASSY,PWB,MD PT-PRE (Only Initial) CN596 614 020 6548 SOCKET,2P or 614 223 9209 SOCKET L5960 614 213 5761 INDUCTOR,FERITE

FL DISPLAY & DESCRIPTION

14G 12G 11G 10G 9G 8G 6G 5G7G 4G 3G 2G 1G 13G
MD PT-SEC P.W.BOARD ASSY
REF.NO. PART NO. DESCRIPTION
77 614 302 6815 ASSY,PWB,MD PT-SEC (Only Initial) CN599 614 020 6586 SOCKET,6P PR599
!!
!
645 014 2550 PROTECTOR,2A 125V
MD MECHANISM (MDG007/SH)
REF.NO. PART NO. DESCRIPTION
MM00 614 304 8350 ASSY,MECHA,MDG007/SH,MD MECHA MM01 614 303 8344 ASSY,DOOR,MD DOOR W/PAINTING MM02 614 303 6609 SHAFT,DOOR,MD DOOR SHAFT MM03 614 303 6616 SPRING,DOOR,MD DOOR RETURN
S2
1-1
2-1
3-1
4-1
5-1
1-2
2-2
3-2
4-2
1-3
1-4
1-5
2-3
2-4
2-5
3-3
3-4
3-5
4-3
4-4
4-5
5-2
5-3
5-4
5-5
S1
B1
B14
B13
B26
(13G)
1-6
2-6
3-6
4-6
5-6
1-7
2-7
3-7
4-7
5-7
(12G~1G)
PIN CONNECTION
PIN NO. 6 0 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 4 3 42 41
CONNECTION F2 F2 NP NP 14G 13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G NC N C
PIN NO. 4 0 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 2 3 22 21
CONNECTION P 1 P2 P3 P4 P5 P6 P7 P8 P9 P10 P11 P12 P1 3 P14 P15 P16 P1 7 P18 P19 P20
PIN NO. 2 0 19 18 17 16 15 14 13 12 11 10 987654321
CONNECTION P21 P22 P 23 P24 P25 P26 P 27 P28 P29 P30 P3 1 P32 P33 P34 P3 5 P36 NP NP F1 F1
NOTE: 1) F1,F2 ..... Filament 4) DL ........... Datum Line
2) NP ........... No pin 5) 1G〜14G Grid
3) NC ........... No connection
- 5 -
Page 7
FL DISPLAY & DESCRIPTION
C
1A 1B
1Y 2A
2B 2Y
GND
Vcc
4B
4Y
4A
3B 3A 3Y
1 2
3 4
5 6 7
14 13 12
11
10
9 8
ANODE CONNECTION
P1 MONO DISC TRACK REMAIN CLOCK SLEEP P2 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1 1-1
P3 TOC B1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 2-1 P4 EDIT B8 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 3-1 P5 S2 B14 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-1 4-1 P6 RANDOM B21 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-1 5-1 P7 RPROGR AM 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 1-2 P8 A.SPACE B21 2-2 2-2 2-2 2-2 2-2 2-2 2-2 2-2 2-2 2-2 2-2 2-2 P9 REPEAT B9 3-2 3-2 3-2 3-2 3-2 3-2 3-2 3-2 3-2 3-2 3-2 3-2 P10 1 B15 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 4-2 P11 A B22 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 5-2 P12 K 1-3 1-3 1-3 1-3 1-3 1-3 1-3 1-3 1-3 1-3 1-3 1-3
P13 B3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 2-3 P14 SYNC B10 3-3 3-3 3-3 3-3 3-3 3-3 3-3 3-3 3-3 3-3 3-3 3-3 P15 TrMARK B16 4-3 4-3 4-3 4-3 4-3 4-3 4-3 4-3 4-3 4-3 4-3 4-3 P16 TlMARK B23 5-3 5-3 5-3 5-3 5-3 5-3 5-3 5-3 5-3 5-3 5-3 5-3
P17 1-4 1-4 1-4 1-4 1-4 1-4 1-4 1-4 1-4 1-4 1-4 1-4 P18 B4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 2-4 P19 B11 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 3-4 P20 B17 4-4 4-4 4-4 4-4 4-4 4-4 4-4 4-4 4-4 4-4 4-4 4-4 P21 B24 5-4 5-4 5-4 5-4 5-4 5-4 5-4 5-4 5-4 5-4 5-4 5-4 P22 S1 1-5 1-5 1-5 1-5 1-5 1-5 1-5 1-5 1-5 1-5 1-5 1-5 P23 B5 2-5 2-5 2-5 2-5 2-5 2-5 2-5 2-5 2-5 2-5 2-5 2-5 P24 B12 3-5 3-5 3-5 3-5 3-5 3-5 3-5 3-5 3-5 3-5 3-5 3-5 P25 B18 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4-5 4-5 P26 B25 5-5 5-5 5-5 5-5 5-5 5-5 5-5 5-5 5-5 5-5 5-5 5-5 P27 OVER 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 1-6 P28 B6 2-6 2-6 2-6 2-6 2-6 2-6 2-6 2-6 2-6 2-6 2-6 2-6 P29 B13 3-6 3-6 3-6 3-6 3-6 3-6 3-6 3-6 3-6 3-6 3-6 3-6 P30 B19 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 4-6 P31 B26 5-6 5-6 5-6 5-6 5-6 5-6 5-6 5-6 5-6 5-6 5-6 5-6 P32 DIGITAL 1-7 1-7 1-7 1-7 1-7 1-7 1-7 1-7 1-7 1-7 1-7 1-7 P33 B7 2-7 2-7 2-7 2-7 2-7 2-7 2-7 2-7 2-7 2-7 2-7 2-7 P34 ANALOG 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7 3-7 P35 B20 4-7 4-7 4-7 4-7 4-7 4-7 4-7 4-7 4-7 4-7 4-7 4-7 P36 STEREO 5-7 5-7 5-7 5- 7 5 - 7 5 - 7 5 - 7 5 - 7 5 - 7 5 - 7 5 - 7 5 - 7
14G 13G 12G 11G 10G 9G 8G 7G 6G 5G 4G 3G 2G 1G
RE

IC BLOCK DIAGRAM & DESCRIPTION

IC503 TC74HCU04AP (HEX INVERTER)
1A 1Y 2A 2Y
3A 3Y
GND
1 2
3 4 5
6
7
14 13 12 11 10
9 8
V 6A 6Y
5A 5Y
4A 4Y
IC532 TC74ACT32FT (Serial EEPROM)
CC
- 6 -
Page 8
IC BLOCK DIAGRAM & DESCRIPTION
IC571 BA3314F (Dula Preamplifier with ALC Detector) IC572 KIA4558S (Dula Low Noise Operational Amp.)
IC573 BU4066BCF (Quad Analog Switch)
12
CC
V
OUT A
A
3
-IN A
4
+IN A
5
EE
V
6
+IN B
B
7
-IN B
8
OUT B
IC593 LA5620 (Multi Voltage System Regulator)
9
CC
V
I/O1 O/I1 O/I2 I/O2
C2 C3
VSS
2 3 4 5
6
1
7
OUT/IN IN/OUT
SWA
SWD
OUT/IN IN/OUT
IN/OUT OUT/IN
SWB
SWC
IN/OUT OUT/IN
14 13 12 11 10
9 8
VCC C1
C4 I/O4 O/I4
O/I3 I/O3
P.DOWN
CD1
STBY
S.RESET
3
V
CC
9
8
2
AC
7
12
DELAY
CIRCUIT
DELAY
CIRCUIT
11
CD2
1
6
4
5
10
PH5
B.BAK
ANA5
SYS3.3
GND
- 7 -
Page 9

SCHEMATIC DIAGRAM (FRONT)

This is a basic schematic diagram.
- 9 -- 8 -
Page 10

SCHEMATIC DIAGRAM (MAIN)

This is a basic schematic diagram.
PRODUCT SAFETY NOTICE
Each precaution in this manual should be followed during servicing. Components identified with the IEC symbol designated components in which safety can be of special significance. When replacing a component identified by designated, or parts with the same ratings of resistance, wattage or voltage that are designated in the parts list in this manual. Leakage-current or resistance measurements must be made to determine that exposed parts are acceptably insulated from the supply circuit before returning the product to the customer.
in the parts list and the schematic diagram
!!
!
!!
!
, use only the replacement parts
- 11 -- 10 -
Page 11

WIRING DIAGRAM

CN532
CN534
MD FRONT P.W.B
MD LED1 P.W.B
CN544
MD LED2 P.W.B
CN545
POWER SWITCH
P.W.B
CN535
CN533 CN530
CN543
CN531
MD MECHANISM
CN591
CN500
CN599
CN596
PT591
MD PT-PRE
P.W.B
MD PT-SEC
P.W.B
MD POWER SUPPLY P.W.B
CN501
CN592
- 13 -- 12 -
CN503
Page 12
ROM
RAN
P4(8)
P1(8)P0(8) P2(8)
Timer 1(8)
Timer 2(8)
Timer 3(8)
Timer 4(8)
Timer 5(8)
Timer 6(8)
3938
P44/INT
4
P45/INT1/ZCR
P4
7
/T3
OUT
P46/T1
OUT
P43/INT
3
P42/INT
2
P4
1
P40/INT
0
AV
SS
V
REF
27 28 29 30 31
32 33 34
P5(8)
11 12 13
14
17 18
15 16
P6(8)
19 20 21 22 23
24 25 26
P7(8)
1 2 3 45
6 7
99 100
8
P8(8)
81 82 83 84 85
86 87 88
P9(8)
73 74 75 76 77
78 79 80
48 47 46 45 4435 984091
43 42 41
56 55 54 53 52
51 50 49
64 63 62 61 60
59 58 57
PA(8)
89 90 92 93 94 95 96
97
P30/SEG
24
P31/SEG
25
P32/SEG
26
P33/SEG
27
PB(4)
10 36 37
P34/SEG
28
P35/SEG
29
P36/SEG
30
P37/SEG
31
P77/AN
7
P87/SEG
15
P86/SEG
14
P85/SEG
13
P84/SEG
12
P83/SEG
11
P82/SEG
10
P81/SEG
9
P80/SEG
8
P97/SEG
23
P96/SEG
22
P95/SEG
21
P94/SEG
20
P93/SEG
19
P92/SEG
18
P91/SEG
17
P90/SEG
16
PA7/SEG
7
PA6/SEG
6
PA5/SEG
5
PA
4
/SEG
4
PB2/DA
9
PB
3
PB1/X
CIN
PB0/X
COUT
PA
3
/SEG
3
PA2/SEG
2
PA1/SEG
1
PA0/SEG
0
P76/AN
6
P75/AN
5
P74/AN
4
P73/AN
3
P72/AN
2
P71/AN
1
P70/AN
0
P3(8)
65 66 67 68 69
70 71
72
S I/O1(8) S I/O2(8)
S I/O3(8)
A-D
converter (8)
D-A
converter (8)
Local data
bus
T1
OUT
T3
OUT
PWM
CNTR
0
CNTR
1
A
X
Y
S
PC
L
PC
H
PS
CPU
Ciock generating
circuit
X
CIN
Sub-clock
input
X
COUT
Sub-clock
input
X
COUT
X
CIN
16
Zero cross detection circuit
Interruqt interval determination circuit
INT
2
INT3,INT
4
INT1/ ZCR
SI/O
automatic
transfer
controller
SI/O
automatic
transfer RAM
controller
SI/O
automatic
display RAM
controller
FLD
automatic
display
controller
Data
P57/S
RDY3
/AN
15
P56/S
CLK3
/AN
14
P55/S
OYT3
/AN
13
P54/S
IN3
/AN
12
P53/S
RDY2
/AN
11
P52/S
CLK2
/AN
10
P51/S
OUT2
/AN
9
P50/S
IN2
/AN
8
P67/S
RDY1
/CS/S
CLK12
P66/S
CLK11
P65/S
OUT1
P64/S
IN1
P63/CNTR
1
P62/CNTR
0
P61/PWM
P6
0
X
OUT
X
IN
RESET
V
CC
V
SS
V
EE
P00/SEG32/DIG
0
P01/SEG33/DIG
1
P02/SEG34/DIG
2
P03/SEG35/DIG
3
P04/SEG36/DIG
4
P05/SEG37/DIG
5
P06/SEG38/DIG
6
P07/SEG39/DIG
7
P10/SEG40/DIG
8
P11/SEG41/DIG
9
P12/DIG
10
P13/DIG
11
P14/DIG
12
P15/DIG
13
P16/DIG
14
P17/DIG
15
P20/DIG
16
P21/DIG
17
P22/DIG
18
P23/DIG
19
P2
4
P2
5
P2
6
P2
7

IC BLOCK DIAGRAM & DESCRIPTION

IC531 M38197MAA-636FP (Single Chip 8-bit C Mos)
- 14 -
Page 13
IC BLOCK DIAGRAM & DESCRIPTION
n
n
n
n
n
n
Pin Name Function
/AN
1P7
7
2P76/AN 3P75/AN 4P74/AN 5P73/AN 6P7 7P7 8P70/AN
9PB 10 11 P5
12 P56/S 13 P55/S 14 P54/S 15 P53/S 16 P52/S 17 P51/S 18 P5 19 P6 20 P66/S 21 P65/S 22 P64/S 23 P63/CNTR 24 P62/CNTR
7
6
5
4
3
/AN
2
2
/AN
1
1
0
3
PB
/DA C MOS compatible input level
2
/AN
7/SRDY3
/AN
CLK3
/AN
OUT3
/AN
IN3
12
/AN
RDY2
/AN
CLK2
/AN
OUT2
/AN
0/SIN2
7/SRDY1
8
/CS/S
CLK11
OUT1
IN1
1
0
8-bit C MOS I/O port with the same functio as ports P24 - P2 C MOS compatible input level C MOS 3-state output
4-bit C MOS I/O port with the same functio as ports P24 - P2
C MOS 3-state output
15
14
13
8-bit C MOS I/O port with the same functio
11
as ports P24 - P2
10
C MOS compatible input level
9
C MOS 3-state output
CLK12
7
7
7
25 P61/PWM 26 P6
0
27 P47/T3
P4
/T1
6
28
29 P4
/INT1/ZCR
5
/INT
30 P4
4
31 P43/INT 32 P42/INT 33 P4
1
/INT
34 P4
0
OUT
OUT
4
3
2
0
6-bit C MOS I/O port with the same functio as ports P24 - P2
C MOS compatible input level C MOS 3-state output
2-bit input port C MOS compatible input level
7
6-bit C MOS I/O port with the same functio as ports P24 - P2
7
C MOS compatible input level C MOS 3-state output 2-bit input port
C MOS compatible input level
35 RESET Reset input pin for active "L"
36 PB
PB
37
38 X 39 X
40 V 41 P2
42 P2
43 P2 44 P2
IN
OUT
SS
1/XCIN
0/XOUT
7
6
5
4
4-bit C MOS I/O port with the same functio as ports P2
C MOS compatible input level C MOS 3-state output
Input and output pins for the main clock generating circuit.
Feedback resistor is built in between XIN pin and Xout pin.
Connect a ceramic resonator or a quartz­crystal oscillator between the X X
OUT
If an external clock is used, connect the clock source to the X X
OUT
This clock is used as the oscillating source of system clock.
Apply voltage of 0V to V 4-bit I/O port I/O direction register allows each pin to
individually programmed as either input or output.
At reset this port is set to input mode. TTL input level
- P2
4
7
pin to set oscillation frequency.
pin open.
IN
C MOS 3-state output
pin and
IN
pin and leave the
SS
Pin Name Function
/DIG
45 P2
3
46 P22/DIG 47 P21/DIG 48 P20/DIG 49 P17/DIG 50 P16/DIG 51 P15/DIG 52 P14/DIG 53 P13/DIG 54 P12/DIG 55 P11/SEG41/DIG 56 P10/SEG40/DIG 57 P07/SEG39/DIG
19 18 17 16 15 14 13 12 11 10
4-bit output port with the same function as port P0
8-bit output port with the same function as port P0
9 8 7
58 P06/SEG38/DIG68-bit output port
/SEG37/DIG5This port builds in pull-down resistor between
59 P0
5
60 P0 61 P0 62 P0 63 P0 64 P0 65 P37/SEG 66 P36/SEG 67 P35/SEG 68 P34/SEG 69 P33/SEG 70 P32/SEG 71 P31/SEG 72 P30/SEG 73 P97/SEG 74 P96/SEG 75 P95/SEG 76 P94/SEG 77 P93/SEG 78 P92/SEG 79 P91/SEG 80 P90/SEG 81 P87/SEG 82 P86/SEG 83 P85/SEG 84 P8 85 P83/SEG 86 P8 87 P8 88 P8 89 PA7/SEG 90 PA6/SEG
91 V
CC
92 PA5/SEG 93 PA 94 PA3/SEG 95 PA 96 PA 97 PA
98 V
EE
99
AV
100
V
REF
/SEG36/DIG4port P0 and the V
4
/SEG35/DIG3At reset this port is set to V
3
/SEG34/DIG2The high-breakdown-voltage P-channel open-
2
/SEG33/DIG1drain
1
/SEG32/DIG
0
/SEG
4
/SEG
2
/SEG
1
/SEG
0
0 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8
7 6
8-bit output port with the same function as port P0
8-bit output port with the same function as port P0
8-bit I/O port with the same function as ports P24-P2
7
C MOS compatible input level The high-breakdown-voltage P-channel open­drain
Apply voltage of 4.0 to 5.5V to V
4
2 1 0
SS
/SEG
/SEG /SEG /SEG
5 4 3 2 1 0
8-bit I/O port with the same function as ports P24-P2
7
C MOS compatible input level The high-breakdown-voltage P-channel open­drain
Applies voltage supplied to pull-down resistors of ports P0, P1, P2
GND input pin for A-D converter and D-A converter Connect AVSS to V Reference voltage input pin for A-D converter and D-A converter
pin
EE
-P23, P3 and P9
0
SS
level
EE
CC
Oct. / '00 / 2000 BB Printed in Japan
SANYO Technosound Co., Ltd.
Osaka, Japan
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