Sony tc 177 sd service manual

Page 2

TC-I 775D

TABLE OF CONTENTS

Section Title Page
Specifications .......................... l
1. OUTLINE
l-lt Block Diagram ............................. 3
1'2. External View (1) ........................ 5
1-3. External View (2) ........................... 5
1-4. Internal View (1) ........................ 6
1-5. Internal View (2) ........................... 6
16 Internal View (3) .......................... 7

2. DISASSEMBLY

2-1. Cassette Lid Assy Removal 7
2-2. Case Removal ............................. 8
3r ADJUSTMENTS
3-1r Mechanical Adjustment (1) ....................... 9
3-2. Mechanical Adjustment (2) ....................... 11
3-3, Electrical Adjustments and Measurements ............... l3
4. DIAGRAMS
4'1. Level Diagrams ............................. 26
4-2, Schematic Diagram (1) ......................... 27
4-3. Mounting Diagram (1) ......................... 29
4-4, Mounting Diagram (2) ......................... 32
4-5. Schematic Diagram (2) ........................ f 35
5. EXPLODED VIEWS AND PACKING ................... 37
6. ELECTRICAL PARTS LIST ........................ SO
7. HARDWARE ................................. 56

When ordering replacement parts, use PAR T NUMBERS listed in Parts Lists
or shown in EXPL ODED VIEWS.
Parts List reference numbers should not be used.

CAUTION

1. Record and playback level adjustments should be carefully made. The
levels must be as specified for correct DOLB Y circuit operation.

2. When replacing resistors and capacitors needing i 2 96 tolerance, use only
those with red line or G mark, as DOLBY system requires precise circuit

operation. a
i 2 96 Tolerance Identification

Resistor Capacitor value

G mark indicates

value

+
tolerance - 2 96 tolerance
(gold: i 5 96}

/

red line indicates i2 % tolerance
selected from resistors of i 5 96 tolerance

_2_