Pare de sucata eletrônica - corrigir sozinho

Table of Contents
Page
General Section .................................. 1-3…1-24
TVR Overview .............................................................................. 1-3
Test Equipment / Jigs .................................................................. 1-4
Specifications ............................................................................... 1-4
Tables of Norms ........................................................................... 1-5
Operating Hints .......................................................................... 1-14
Service Instructions .................................................................... 1-22
Special Functions ....................................................................... 1-24
Discription .......................................... 2-6…2-10
Power Chassis (PS) ..................................................................... 2-6
• Power Supply ............................................................................ 2-6
• High Voltage Section ................................................................ 2-6
Signal Chassis ............................................................................. 2-7
• TV Control (CO) ........................................................................ 2-7
• Deck Control (DE) ..................................................................... 2-7
• TV Signal Electronics (TV) ........................................................ 2-8
• Frontend 2 (TU2) ...................................................................... 2-9
• VCR Signal Electronics (VS) ..................................................... 2-9
Adjustment Procedures....................... 3-3…3-4
Layout of the PCBs
and Circuit Diagrams ......................... 4-1…4-28
Wiring Diagram ............................................................................ 4-1
Power Chassis (PS) ..................................................................... 4-3
Tube PCB (CRT) .......................................................................... 4-3
Signal Chassis ............................................................................. 4-7
• TV Control (CO) ...................................................................... 4-11
• Head Amplifier (HA) ................................................................ 4-12
• Drive Control (DE) ................................................................... 4-13
• TV Signal Electronic ................................................................ 4-15
• Frontend 2 / SECAM L Demodulator (TU2) ............................ 4-17
• VCR Signal Electronic (VS) .................................................... 4-19
Keyboard Control Unit (TM) ....................................................... 4-21
Oscillograms .............................................................................. 4-22
Block Circuit Diagram – Power Supply/Digital ........................... 4-26
Block Circuit Diagram – TV/VCR ............................................... 4-27
Drive Mechanism................................ 5-6…5-10
Test Equipment / Jigs .................................................................. 5-6
Overview of the Drive Mechanism ............................................... 5-6
Disassembly Instructions ............................................................. 5-7
Adjustments ................................................................................. 5-9
Exploded Views and
Spare Parts Lists ................................ 6-1…6-14

General Section ............................................. 3-6
TVR Overview ................................................................................. 3
Test Equipment / Jigs ........................................ Service Manual 1-4
Specifications ..................................................... Service Manual 1-4
Tables of Norms ................................................. Service Manual 1-5
Operating Hints ................................................ Service Manual 1-14
Service Instructions ......................................................................... 5
Special Functions ............................................................................ 6
Discription .......................................... 2-6…2-10
Power Chassis (PS) ........................................... Service Manual 2-6
• Power Supply .................................................. Service Manual 2-6
• High Voltage Section ...................................... Service Manual 2-6
Signal Chassis ................................................... Service Manual 2-7
• TV Control (CO) .............................................. Service Manual 2-7
• Deck Control (DE) ........................................... Service Manual 2-7
• TV Signal Electronics (TV) .............................. Service Manual 2-8
• Frontend 2 (TU2) ............................................ Service Manual 2-9
• VCR Signal Electronics (VS) ........................... Service Manual 2-9
Adjustment Procedures .... Service Manual 3-3…3-4
Layout of the PCBs
and Circuit Diagrams ............................... 7…33
Wiring Diagram ............................................................................... 7
Power Chassis (PS)/Picture Tube PCB (CRT) ............................... 9
Signal Chassis .............................................................................. 13
• TV Control (CO) ......................................................................... 17
• Head Amplifier (HA) ................................................................... 18
• Drive Control (DE) ...................................................................... 19
• TV Signal Electronic (TV) ........................................................... 21
• Frontend 2 / SECAM L Demodulator (TU2) ............................... 23
• VCR Signal Electronic (VS) ....................................................... 25
Keyboard Control Unit (TM) .......................................................... 27
Oscillograms ................................................................................. 28
Block Circuit Diagram – Power Supply/Digital .............................. 32
Block Circuit Diagram – TV/VCR .................................................. 33
Drive Mechanism................................ 5-6…5-10
Test Equipment / Jigs ........................................ Service Manual 5-6
Overview of the Drive Mechanism ..................... Service Manual 5-6
Disassembly Instructions ................................... Service Manual 5-7
Adjustments ....................................................... Service Manual 5-9
Exploded View
and Spare Parts Lists ............................ 34…44