Realistic sta 2080 service manual

Page 2

:1 CONTENTS (:3
Page

1) ELECTRICAL PERFORMANCE SPECIFICATIONS ........................ 3 - 5
2) DISASSEMBLY INSTRUCTIONS ...................................... 6 - 7
3) BLOCK DIAGRAM ....................................................... 8
4) DIAL STRINGING DIAGRAM ............................................. 9
5) LEVEL DIAGRAM ....................................................... 9
6) OPERATION CHECK FOR CIRCUITS ................................. 10 - 18
7) ALIGNMENT INSTRUCTIONS ...................................... 19 - 23
8) BRIEF DESCRIPTION OF PROTECTOR CIRCUITS ..................... 24 - 25
9) TROUBLESHOOTING .............................................. 26 - 30
10) IC 8. TRANSISTOR LEAD IDENTIFICATION ............................... 31
11) IF 8. TUNER P.C.B. (TOP 8. BOTTOM VIEWS) ........................ 32 - 33
12) PRE AMP P.C.B. (TOP 8- BOTTOM VIEWS) ................................ 34
13) TONE CONTROL P.C.B. (TOP 8- BOTTOM VIEWS) ......................... 35
14) MAIN AMP P.C.B. (LEFT) (TOP 8. BOTTOM VIEWS) ........................ 36
15) MAIN AMP P.C.B. (RIGHT) (TOP 8: BOTTOM VIEWS) ...................... 37
16) PROTECTOR P.C.B. (TOP 8 BOTTOM VIEWS) ............................. 38
17) TAPE P.C.B. (TOP 8. BOTTOM VIEWS) ..................................... 38
18) FUSE P.C.B. (TOP 8. BOTTOM VIEWS) ..................................... 38
19) POWER SUPPLY P. C. B. (TOP & BOTTOM VIEWS) .......................... 39
20) SWITCH P. C. B. (TOP 8. BOTTOM VIEWS) .................................. 4O
21) POWER TRANSISTOR P. C. B. (LEFT 8 RIGHT) (TOP 8 BOTTOM VIEWS) ....... 40
22) LED P. C. 8. (TOP 8- BOTTOM VIEWS) ..................................... 40
23) ELECTRICAL PARTS LIST .......................................... 41 - 48
24) EXPLODED VIEW PARTS LIST ..................................... 49 - 52
' 25) MISCELLANEOUS PARTS LIST .......................................... 52
26) IC INTERNAL DIAGRAM ........................................... 53 - 57
27) VOLTAGE CHART FOR PRE AMP 8 PROTECTOR CIRCUITS .................. 58
28) SCHEMATIC DIAGRAM .................................. SEPARATE SHEET
29) EXPLODED VIEW ........................................ SEPARATE SHEET