Table Of Contents - Sony HCD-D170 Service Manual

SERVICING NOTE
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer
electrostatic break-down because of the potential difference
generated by the charged electrostatic load, etc. on clothing and
the human body.
_ During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled
with care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be
focused on the disc reflective surface by the objective lens in
the optical pick-up block. Therefore, when checking the laser
diode emission, observe from more than 30 cm away from the
objective lens.
[All lights of FL tube]
After the power supply is turned on, press] TUNER/BAND
button,| DISPLAY/DEMO |button and | FILE 2] button
simultaneously to enter in the mode which the FL tube lights
all. If you want to quit the mode, press the above buttons
simultaneously again. -
[Switching the channel step 9 KHz/10 KHz]
Press LENTER/NEXT]| button and | POWER | button
simultaneously to switch the AM channel step 9 KHz and 10
KHz. Be sure not to change with carelessness.
TABLE OF CONTENTS
Section Title Page
SECTION 1. GENERAL .....0.0...... cc cocc ecceecccescescccsescceeees 5
SECTION 2. DISASSEMBLY .
2-1. Front Panel ASSY and Main Board .0.... ccc ceesecceceeee 6
2-2. TC Mechanism Deck oo... .eccccccccccccccccsscsscsscssscssssssesscecees 6
2-3. CD Mechanism Deck .........cccccccccssscsccccssssssscccasceseceeceeneeees 7
2-4. -BU Bracket ASSY uu... ccscscsscessssssssrsrecacscccescessssesens 7
2-5. Disc Table ......... sd ladiosllatuas don'esleuevas vob Seaedertaaeebaseemteatyens 8
SECTION 3. MECHANICAL ADJUSTMENTS ............... 9
SECTION 4. ELECTRICAL ADJUSTMENTS
DECK SOCOM arsicccciciuccebesicaddeasentecsevevenccessceleattevcotduebosnaevinteeeds 9
TUNER S6CtiOn....c.scccsscccossssccsccccoccesscsscseadesvecvesscesnsevcnvessecvesevsesses 12
CD SOCHOn iieesceieds hei tevdictearceedtecgendes HR lok ines Gieescleehies 13
SECTION 5. DIAGRAMS
5-1. Circuit Boards Location ......ccccccscsscscssscscssstessserseeseteeees 15
§-2. IC Pin Function
* 10501 Graphic Control (ASD042) uo... eesesecsteeeseeeeeee 16
5-3. Block Diagrams
#TUREl SOCOM svsnzsacaiaransivndoian sues av ve tadivorsescalad cast cosasetvees 17
# PECK SECON se:.edssousacdsandosasni/sa sowed saasaasthiaies nance vances 19
8D: SQCHOM: is ccceeschivesurscctaiveveeadsies scp becsaacostedavaiadiescevevvedeass 21
© Main Section ......cccccccesscsessssesssssssesssesees restate tetel case ates 23
5-4. IC Block Diagrams - CD Section - ou... ceeeseesseeeees 25
5-5. Printed Wiring Board - CD Section - ues 27
5-6. Schematic Diagram - CD Section - ....... eee eens 29
5-7. Printed Wiring Board - Main Section - ....... eee 32
5-8. Schematic Diagram - Main Section - oo... eee 35
5-9. Schematic Diagram - Deck Section - uo... eens 39
5-10. Schematic Diagram - Tuner Section -........eeeceeee 43
5-11. Printed Wiring Board - Tuner Section - .....ccseeeeees 46
5-12. Schematic Diagram - CD Motor Section - ............... 47
5-13. Printed Wiring Board - CD Motor Section - ......:........ 47
5-14. Schematic Diagram -- Panel Section -.......... eee 49
5-15. Printed Wiring Board - Panel Section -.......... cesses 51
5-16. IC Pin Function
¢ 1C701 Master Control (TMP87CS64) ....... cc eceeeeeeseees 54
SECTION 6. EXPLODED VIEWS
6-1. Case and Back Panel Section ..........ccccsccssssesestecceseeees 57
6-2. Panel Board Section... eee seesseeeeesseceeesessesneeseeeeees 58
6-3. Front Panel S@ction ........ cccssssssssrsreesceceesescessseeseneaes 59
6-4. Chassis SECTION ........... cic ccsesssssessceceeseseeceeceeceucensensenseseeeas 60
6-5. TC Mechanism Section 1 (TCM-YSW47C24) 00... cee 61
6-6. TC Mechanism Section 2 (TCM-YSW47C24) uu... 62
6-7. TC Mechanism Section 3 (TCM-YSW47C24) ............08 63
6-8. CD Mechanism Section (CDM37-5BD19)............::ccee 64
6-9. Base Unit Section (BU-5BD19) oe ccsssteeeeeesees 65
SECTION 7. ELECTRICAL PARTS LIST... 66