Sanyo Dc-da170 User manual

FILE NO.

Service Manual Micro Component System DC-DA170 (UK)

(XE)

PRODUCT CODE No.

129 601 00 (UK)

129 601 01 (XE)

REFERENCE No. SM5810186

This service manual consists of "DC-DA170U" (Main unit : 129 960 00 for UK, 129 960 01

for XE) and "SX-DA70" (Speaker system : 165 028 00 for UK, 129 028 01 for XE).

YOFF ZON

FUNCTION

PHONES

MEMORY

DOWN

PRESET

TUNER/ BAND

VOLUME

MULTI FUNCTION DISPLAY

TU UP

TU DOWN

SOUND PRESET

BASS

XPANDER

SURROUND

c/e

MICRO COMPONENT SYSTEM

DA170

FULL AUTO STOP

PUSH TO CLOSE

damcn/qk

REC PLAY REW F FWD STOP/ EJECT PAUSE

f/d

Contents

Specifications...................................................................1

System connection...........................................................1

Laser beam safety precaution..........................................2

CD pick-up maintenance..................................................2

CD player adjustments.....................................................2

Tape adjustments ............................................................3

Tuner adjustments (for UK)..............................................4

Tuner adjustments (for XE)..............................................5

Exploded view

(Cabinet & Chassis) ......................................................6

(Tape mechanism) ........................................................12

Parts list

(Cabinet & Chassis) ......................................................7

(Tape mechanism) ........................................................12

(CD mechanism) ...........................................................7

IC block diagram & description ........................................13

Schematic diagram

(CD)...............................................................................16

(TUNER for UK) ............................................................18

(TUNER for XE) ............................................................22

(FRONT for UK) ............................................................26

(FRONT for XE) ............................................................30

(AMPLIFIER for UK)......................................................34

(AMPLIFIER forXE).......................................................38

Wiring diagram

(TUNER for UK) ............................................................20

(TUNER for XE) ............................................................24

(FRONT + CD for UK) ...................................................28

(FRONT + CD for XE) ...................................................32

(AMPLIFIER for UK)......................................................36

(AMPLIFIER for XE)......................................................40

(POWER TRANSFORMER) ........................................42

IC & Transistor voltages...................................................43

LCD display description ...................................................44

Wiring connection ............................................................45

- 1 -

SPECIFICATIONS

General

Output power ......................... 4W x 2 (at4 ohms, 10% distortion)

Inputs ..................................... VIDEO IN : 400 mV / 50k ohms

Outputs .................................. SPEAKERS : 4 ohms

PHONES : 8 - 32 ohms

Power requirements............... AC 230 V, 50 Hz

Power consumption ............... 19 W

Dimensions (W x H x D) ........ Approx. 150 x 240 x 212 mm

Weight.................................... Approx. 2.3 kg

Speaker system

Type....................................... Full range bass reflex

Drivers ................................... 10 cm cone type

Maximum

power-handling capacity ..... 8 Watts (peak)

Nominal impedance ............... 4 ohms

Dimensions (W x H x D) ........ Approx. 150 x 230 x 190 mm

Weight.................................... Approx. 1.2 kg (per speaker)

Tuner

Reception frequency.............. FM : 87.5 - 108.0 MHz

MW : 522 - 1611 kHz

LW : 144 - 288 kHz (UK only)

CD player

Channels................................ 2-channel stereo

Sampling frequency ............... 44.1 kHz

Pick-up................................... Optical 3-beam

semiconductor laser

Wow and Flutter..................... Below measurable limits

Wave length........................... 790 nm

Laser output........................... 0.6mW(Continuous wave max.)

Cassette deck section

Track system ......................... 4-track, 2-channel stereo

Frequency response .............. 80 Hz - 15 kHz

Signal to noise ratio ............... 40 dB

Wow and Flutter..................... 0.15% (WRMS)

Fast forward / Rewind time .... Approx. 110 sec. (C-60)

SYSTEM CONNECTIONS

SPEAKERS

Ω

MIN.)

SUB WOOFER

AM loop aerial

L ch speaker R ch speaker

To an AC outlet

Aerial wire

External aerial

Amplifies subwoofer (not supplied)

(XE)

- 2 -

LASER BEAM 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)

WAVELENGTH .............790 nm

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.

CD PICK-UP MAINTENANCE

About pick-up (Optical lens) Cleaning

Clean a lens with swab of the cotton which moistened it with alcohol, cleaning paper or cleaning disc appointed.

Specified cleaning disc : LC-1 (Part code : 645 026 1961 ..... manufactured by SANYO.)

Show a clean procedure in the following in reference by swab of cotton.

1. Cotton swab is wrapped with Cleaning paper.

2. Add the isopropyl alcohol.

3. Gently move the tip of cotton swab just like a draw a whirlpool from inside to outside on the surface of lens.

CD PLAYER ADJUSTMENTS

1. ADJUSTMENTS

(1) Confirm the tracking balance

1. Turn on the POWER switch.

2. Connect an Oscilloscope to TP2 (TE) and TP4 (VC).

3. Set the test disc.

4. Press "PLAY" button to turn into the "PLAY" mode.

5. Keep holding "SKIP" button down so as to be "SERCH"

mode, then confirm that the oscilloscope waveform is

symmetrical on the top and bottom in relation to 0V (VC).

200mV/div.

5ms/div.

SUB WOOFER

SPEAKERS

Ω

MIN.)



(XE)

- 3 -

OPENING EXPANDED

(2) Checking the "eye" pattern

1. Switch "ON" the POWER.

2. Connect an oscilloscope to TP1 (RF) and TP4 (VC).

3. Load the test disc.

4. Press the PLAY button.

5. Check to be sure that the "eye" pattern is at the center of

waveform and that the diamond shape is clearly defined.

6. Press the STOP button.

7. Turn off the POWER switch.

CD PLAYER ADJUSTMENTS

OSCILLOSCOPE

TP1

(RF)

TP4

(VC)

TAPE ADJUSTMENTS

R / P HEAD

RED WHITE

YELLOW EARTH

a. Replacing the head

1. After replacement, demagnetize the heads by using a

degausser.

2. Be sure to clean the heads before attempting to make any

adjustments.

3. Be sure both channels (1 and 2) are the same level.

(Using a dual-channels oscilloscope).

4. All wiring should be returned to the original position after

work is completed.

b. Adjusting head azimuth

1. Load a test tape (VTT-738, etc. :10kHz) for azimuth

adjustment.

2. Press the PLAY button.

3. Use a cross-tip screwdriver to turn the screw for normal

azimuth adjustment so that the left and right outputs are

maximized at the same phase during normal playback.

4. Press the STOP button.

d. Replacing the moto

MOTOR SPEED

ADJUSTMENT

c. Adjusting motor speed

1. Insert the test tape (MTT-111 or etc. 3,000 Hz).

2. Press the PLAY button.

3. Use a flat-tip screwdriver to turn the SVR to adjust so that

the frequency counter becomes 3,000 Hz.

4. Press the STOP button.

e. Checking the mechanism torques

•Clean the head, capstan and pinch roller before making any

measurement.

Measureent Take-up torque Back tension Tape tension

Cassette for PLAY : TW-2111A PLAY : TW-2111A Drive-power cassette

measurement F.FWD/REW : TW-2231 TW-2412

PLAY 30 ~ 70gr.cm 1.0 ~ 6.0gr.cm 80 gr or more

F.FWD/REW 55 gr or more - -

- 7 -

PARTS LIST PRODUCT SAFETY NOTICE

EACH PRECAUTION IN THIS MANUAL SHOULD BE FOLLOWED DURING SERVICING. COMPONENTS IDENTIFIED WITH THE IEC

SYMBOL !

!! IN THE PARTS LIST AND THE SCHEMATIC DIAGRAM DESIGNATED COMPONENTS IN WHICH SAFETY CAN BE OF

SPECIAL SIGNIFICANCE. WHEN REPLACING A COMPONENT IDENTIFIED BY !

!! , USE ONLY THE REPLACEMENT PARTS 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.

CAUTION :Regular type resistors and capacitors are not listed. To know those values, refer to the schematic diagram.

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

614 314 1358 CARTON CASE(UK)

614 315 7953 CARTON CASE(XE)

614 314 1365 CUSHION,REAR

614 314 1372 CUSHION,FRONT

614 314 1396 INSTRUCTION MANUAL(UK)

614 316 3107 INSTRUCTION MANUAL(XE)

614 245 8587 NOTICE,AC CODE(UK)

645 043 7366 POLY SHEET-0380X0300*NC(UK)

645 043 7373 POLY SHEET-0380X0300*NC(XE)

645 005 1227 ASSY,ANTENA,LOOP

645 040 3217 REMOCON,RB-DA70

or 645 042 3604 REMOCON,RB-DA70

or 645 042 3611 REMOCON,RB-DA70

614 229 4635 ANTENNA (XE)

or 614 308 5515 ANTENNA (XE)

614 314 8975 ASSY,BOX,SPEAKER(UK)

614 314 8982 ASSY,BOX,SPEAKER(XE)

CABINET & CHASSIS

REF.NO. PART NO. DESCRIPTION

1 614 314 1082 ASSY,DOOR,DECK

2 614 314 1334 SPRING,DOOR DECK

3 614 303 5718 KNOB,VR

4 614 314 1099 ASSY,PANEL,FRONT

5 614 309 7969 ASSY,GEAR,(CASSETTE)

6 614 314 1211 KNOB,DECK,MECHA,REC

7 614 314 1228 KNOB,DECK,MECHA,PLAY

8 614 314 1235 KNOB,DECK,MECHA,REW

9 614 314 1242 KNOB,DECK,MECHA,FFWD

10 614 314 1259 KNOB,DECK,MECHA,STOP/EJECT

11 614 314 1266 KNOB,DECK,MECHA,PAUSE

12 614 314 1297 MOUNTING,DECK

13 614 314 1143 BUTTON,OPERATION,7 KEYS

14 614 314 1136 BUTTON,RIGHT,4 KEYS

16 614 310 3899 SPACER,MECHA

17 614 307 2072 COVER,PICK-UP

18 614 307 8784 LEVER

19 614 314 1303 MOUNTING,CD

20 614 317 5373 ASSY,GEAR,(LID,CD)

21 614 314 1341 SPRING,DOOR CD

22 614 314 1129 BUTTON,CD OPEN,1 KEY

23 614 307 8821 PULLEY

24 614 303 0256 LATCH,MAGNET

25 614 314 1280 LID,CD

26 614 314 7497 COVER

27 614 314 1181 DEC,WINDOW,CD

28 614 314 1105 BUTTON,POWER,1 KEY

29 614 314 1327 SPRING,REC

30 614 314 7541 MOUNTING

31 614 308 4914 STOPPER

32 614 314 1075 ASSY,CABINET,REAR(UK)

32 614 316 3060 ASSY,CABINET,REAR(XE)

33 614 307 9804 ASSY,MECHA,CDDA11-SASH

FIXING PARTS

REF.NO. PART NO. DESCRIPTION

Y01 411 021 3107 SCR S-TPG BIN 2.6X8,

F-PANEL+MTG DECK KNOB

Y02 411 021 3503 SCR S-TPG BIN 3X10,

MTG CD+FRONT PCB

Y03 411 021 3503 SCR S-TPG BIN 3X10,

MTG CD+CD PCB

Y04 411 021 1806 SCR S-TPG BIN 2.6X10,MTG CD+DA11

Y05 411 092 0906 WASHER Z 2.6X10X0.5,MTG CD+DA11

Y06 411 021 3503 SCR S-TPG BIN 3X10,

MTG CD+TUNER PCB

Y07 411 098 4700 SCR S-TPG BIN 2.3X8,

DEC WINDOW CD+LID CD

Y08 411 021 3503 SCR S-TPG BIN 3X10,

MTG CD+MAIN PCB

Y09 411 021 3503 SCR S-TPG BIN 3X10,

REAR+DECK MECHA,

MOUNTING+DECK MECHA

Y10 411 126 1404 SCR S-TPG BIN 2X4,

SPRING DECK REC

Y11 411 020 9100 SCR S-TPG BRZ+FLG 3X12,

REAR+P-TRANS

Y12 411 098 7800 SCR S-TPG FLT 3X12,

C-REAR(L/R SIDE)

Y13 411 021 4500 SCR S-TPG BIN 3X16,C-REAR

Y14 411 021 3503 SCR S-TPG BIN 3X10,

C-REAR(ANT TERMINAL)

Y15 411 021 3503 SCR S-TPG BIN 3X10,MTG CD+REAR

Y16 411 021 3503 SCR S-TPG BIN 3X10,SUB-WOOFER

Y17 411 021 4005 SCR S-TPG BIN 3X12,REAR+STOPPER

ELECTRICAL PARTS

REF.NO. PART NO. DESCRIPTION

51 614 316 3602 FLEXIBLE FLAT CABLE,AMP-FRONT

52 614 316 3619 FLEXIBLE FLAT CABLE,TU-FRONT

53 614 310 9822 WIRE,UL1533-AWG26B,TU-FRONT

54 614 313 7023 FLEXIBLE FLAT CABLE,

CD-PICK UP-CD

or 614 310 5459 FLEXIBLE FLAT CABLE,

CD-PICK UP-CD

55 614 309 8454 ASSY,WIRE,CD-PICK UP-CD

or 614 314 4779 ASSY,WIRE,CD-PICK UP-CD

56 614 274 2013 CORD,ID CONNECTOR,FM ANT(UK)

57 !

!! 423 016 7908 FUSE 250V 2.5A

58 614 314 4786 ASSY,WIRE,R/P HEADS-AMP

or 614 309 8799 ASSY,WIRE,R/P HEADS-AMP

59 614 314 4793 ASSY,WIRE,MECHA SW-AMP

or 614 309 8805 ASSY,WIRE,MECHA SW-AMP

60 !

!! 645 036 9803 CORD,POWER-1.6MK(UK)

or !

!! 645 036 9797 CORD,POWER-1.6MK(UK)

60 !

!! 645 016 9939 CORD,POWER-1.74MK(XE)

61 !

!! 645 038 7555 TRANS,POWER

- 8 -

PARTS LIST

FRONT P.W.BOARD ASSY

REF.NO. PART NO. DESCRIPTION

71 614 314 0689 ASSY,PWB FRONT(UK)(Only Initial)

71 614 316 3411 ASSY,PWB FRONT(XE)(Only Initial)

BR601 614 314 1204 HOLDER,LCD

BR602 614 315 7038 COVER,LED

C6200 403 259 0508 NP-ELECT 1U M 50V

CN601 645 012 5096 SOCKET,FPC 12P,FRONT-AMP

CN603 645 012 5195 SOCKET,FPC 15P,FRONT-TU

D6600 407 221 3801 LED 1224UBC/C470

D6901 407 012 4406 DIODE 1SS133

D6902 407 012 4406 DIODE 1SS133

IC601 409 502 8406 IC LC72336-9A15,MICON

L6900 645 001 4550 INDUCTOR,10U K

or 645 031 7835 INDUCTOR,10U K

LCD60 645 043 6260 LCD

LS601 614 314 9286 DEC,SHEET,LCD

Q6200 405 017 9600 TR 2SC3330-T

or 405 143 8706 TR KTC3199-GR

or 405 011 8500 TR 2SC1740S-R

or 405 011 8609 TR 2SC1740S-S

or 405 017 9709 TR 2SC3330-U

Q6201 405 143 8706 TR KTC3199-GR

or 405 011 8500 TR 2SC1740S-R

or 405 011 8609 TR 2SC1740S-S

or 405 017 9600 TR 2SC3330-T

or 405 017 9709 TR 2SC3330-U

R6001 401 105 5905 MT-GLAZE 560 JA 1/16W

R6002 401 105 6506 MT-GLAZE 680 JA 1/16W

R6003 401 105 7305 MT-GLAZE 820 JA 1/16W

R6004 401 105 1006 MT-GLAZE 1.2K JA 1/16W

R6005 401 105 5905 MT-GLAZE 560 JA 1/16W

R6006 401 105 6506 MT-GLAZE 680 JA 1/16W

R6007 401 105 7305 MT-GLAZE 820 JA 1/16W

R6008 401 105 1006 MT-GLAZE 1.2K JA 1/16W

R6009 401 105 4205 MT-GLAZE 33K JA 1/16W (UK)

R6010 401 105 0603 MT-GLAZE 10K JA 1/16W

R6011 401 105 0603 MT-GLAZE 10K JA 1/16W

R6012 401 105 0603 MT-GLAZE 10K JA 1/16W

R6013 401 105 1501 MT-GLAZE 1.5K JA 1/16W

R6014 401 105 2805 MT-GLAZE 2.2K JA 1/16W

R6100 401 105 0702 MT-GLAZE 100K JA 1/16W

R6103 401 105 0702 MT-GLAZE 100K JA 1/16W

R6104 401 105 0603 MT-GLAZE 10K JA 1/16W

R6105 401 105 0603 MT-GLAZE 10K JA 1/16W

R6106 401 105 0603 MT-GLAZE 10K JA 1/16W

R6107 401 105 5301 MT-GLAZE 4.7K JA 1/16W

R6108 401 105 5301 MT-GLAZE 4.7K JA 1/16W

R6109 401 105 5400 MT-GLAZE 47K JA 1/16W

R6110 401 105 0702 MT-GLAZE 100K JA 1/16W

R6111 401 105 5400 MT-GLAZE 47K JA 1/16W

R6112 401 105 0603 MT-GLAZE 10K JA 1/16W

R6113 401 105 0603 MT-GLAZE 10K JA 1/16W

R6200 401 105 2805 MT-GLAZE 2.2K JA 1/16W

R6201 401 105 3307 MT-GLAZE 2.7K JA 1/16W

R6501 401 105 0504 MT-GLAZE 1K JA 1/16W

R6502 401 105 0504 MT-GLAZE 1K JA 1/16W

R6600 401 105 3208 MT-GLAZE 270 JA 1/16W

R6905 401 105 0405 MT-GLAZE 100 JA 1/16W

R6906 401 105 5202 MT-GLAZE 470 JA 1/16W

R6907 401 105 5400 MT-GLAZE 47K JA 1/16W

S6001 614 220 5471 SWITCH,TACT