Sony TC-WR545 Service Manual page 2

Inputs
(phono jacks) Input impedance 47 k ohms
Outputs
Line outputs
(phono jacks)
0.5 V ata load
impedance of
47 k ohms
Load impedance | Over 10 k ohms
Output level 1 mW at a load
impedance of
32 ohms
US, Canadian model : 120V AC, 60Hz
UK model : 240V AC, 50Hz
Australian model : 240V AC, 50/60Hz
AEP, German model :
220-230V AC, 50/60Hz
E model :
120, 220 or 240V AC adjustable,
50/60Hz
25W
EXCEPT UK, Australian model :
Approx. 430 x 123 x 290 mm
(w/h/d)
(17 x 47/s x 11 !/2 inches)
UK, Australian model :
Approx. 430 123x300 mm
(w/h/d)
(17X474x 117A inches)
including projecting parts and
controls
Approx. 4.5 kg (9 Ibs 15 0z)
Rated output
level
Headphones
(stereo phone jack)
(TC-WR545 only)
General
Power requirements
Power consumption
Dimensions
Mass
Supplied accessories
Audio connecting cords (2)
Design and specifications are subject to change without
notice.
MODEL IDENTIFICATION
(Specification Label)
SONY:
STEREO CASSETTE DECK
MODEL NO. Rss aaa
: AC 120V 60Hz
US, Canadian model
UK model : AC 240V 50Hz
Australian model! : AC 240V~50/60Hz
AEP, German model : AC 220-230V~50/60Hz
E model : AC120, 220, 240V~50/60Hz
TABLE OF CONTENTS
Section Title Page
Specifications :++seresesesereeeeteeteeeeteereeteese teeter eseeeseees l
Safety Check-out (US Model) SOrPereeeereeer re rere rere rere rr eee) 3
1. GENERAL
Identifying the Parts on the Front Panel s++r+t++trrrsrrtetttteee 4
2. DISASSEMBLY
2-1 . Front Panel errr rrr errr tree rere ee ee eee eee ee eee 5
2-2. Mechanism Deck eer rr rrr rer rr rrr rr errr rere rrr reer reece 5
2-3. Capstan Motor, Reel Motor ssrrrrtrrrtrrerritrsisesessee 6
2-4. Head, Pinch Rollers::sssressrereertseeeeeeeeeteeeneeeeneeeey 6
3. ADJUSTMENTS
3-1. Mechanical Adjustments :+rrrsttrrrrrereertrsereterseersersees ay
3-2. Electrical Adjustments «-++1+esseseereeeeeteeterteerierieees 7
4. EXPLANATION OF IC TERMINALS --+-e erste 11
5. DIAGRAMS
5-1. Block Diagram cece ener enon scree teen rset ne enereeseeenonsesecure 13
522) Circuit Board Location Sererrerrrrrr rrr errr errr e rrr 16
5-3. Printed Wiring Boards (System Control Section)-++++-- 17
5-4. Schematic Diagram (System Control Section):**+*+++*- 21
5-5. Schematic Diagram (Audio Section) srrrrsrrrrtrrtttrerees 27
5-6. Printed Wiring Boards (Audio Section):**++rstrtrrete"* ep
6. EXPLODED VIEWS
6-1. Chassis Section eee e cece tere nme eee e aren eee sereesenereneueeeenes 37
6-2. Front Panel Section Deemer meen e nse et tere an nsosscoesesaeeeseeee 39
6-3. Mechanism Section l deere ence recone eta a en eee nese e seen enee 40
6-4. Mechanism Section 2esrrcerersssseerteseeteeeeecesessenennes A]
7. ELECTRICAL PARTS LIST -sr--:ceecceceeceeeeseeeeeeeeeerees 42
TC-WR545, TC-WR741