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Summary of Contents for Genius TVB-S201 PRO
- Page 1 Service Manual TVB-S201 PRO...
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Page 2: Table Of Contents
Service Manual Table of Contents TVB-S201 PRO ...........................0 Chapter 1. INTRODUCTION......................2 a. Hardware ..........................2 b. Software ..........................2 c. Block Diagram ........................2 Chapter 2. Testing Procedures ......................3 a. Testing flow chart........................3 b. Check VCC +5V ........................5 c. Check REG2 Pin 2 Signal ......................6 d. -
Page 3: Chapter 1. Introduction
Service Manual Chapter 1. INTRODUCTION a. Hardware ♦ PC586 above ♦ Connection port b. Software ♦ Win98 above c. Block Diagram (Silicon Tuner) I C BUS S-Video Video PIP select Module SAA-7135 processor STV-108A Composite & Selector Audio Line in Audio Switch MCU + OSD Audio Amplifie... -
Page 4: Chapter 2. Testing Procedures
Service Manual Chapter 2. Testing Procedures a. Testing flow chart START Check VCC REPLACE ADAPTER Check REG2 REPLACE REG2 Pin 2 +3.3V Check REG5 REPLACE REG5 Pin 2 +2.5V Check REG3 REPLACE REG3 Pin 2 +3.3V Check REG4 REPLACE REG4 Pin 2 +1.8V Version 1.0 Page 3... - Page 5 Service Manual Check X1 REPLACE X1,U22 X’TAL signal REPLACE X2,U5,U1 Check X2 OSC signal REPLACE Y301,U301 Check Y301 X’TAL signal REPLACE U1 Check U1 CLK signal Version 1.0 Page 4...
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Page 6: Check Vcc +5V
Service Manual b. Check VCC +5V L34 PIN1 Version 1.0 Page 5... -
Page 7: Check Reg2 Pin 2 Signal
Service Manual c. Check REG2 Pin 2 Signal REG2.PIN 2 Version 1.0 Page 6... -
Page 8: Check Reg5 Pin 2 Signal
Service Manual d. Check REG5 Pin 2 Signal REG5 PIN2 Version 1.0 Page 7... -
Page 9: Check Reg3 Pin 2 Signal
Service Manual e. Check REG3 Pin 2 Signal REG3 PIN2 Version 1.0 Page 8... -
Page 10: Check Reg4 Pin 2 Signal
Service Manual f. Check REG4 Pin 2 Signal REG4 PIN2 Version 1.0 Page 9... -
Page 11: Check X1,U22 Pin 26 X'tal Signal
Service Manual g. Check X1,U22 Pin 26 X’TAL Signal U22 PIN26 Version 1.0 Page 10... -
Page 12: Check X2 Pin 3,U5 Pin 62,U1 Pin 41 Osc Signal
Service Manual h. Check X2 Pin 3,U5 Pin 62,U1 Pin 41 OSC Signal U1 PIN41 U5 PIN62 Version 1.0 Page 11... -
Page 13: Check Y301 X'tal Signal
Service Manual i. Check Y301 X’TAL Signal C322 PIN1 Version 1.0 Page 12... -
Page 14: Check U1 Clk_Saa Signal
Service Manual j. Check U1 CLK_SAA Signal U1 PIN58 U5 PIN66 Version 1.0 Page 13... -
Page 15: Check U1 Ram_Clk Signal
Service Manual k. Check U1 RAM_CLK Signal U1 PIN136 Version 1.0 Page 14... -
Page 16: Chapter 3. Troubleshooting Guide
Service Manual Chapter 3. Troubleshooting Guide Problems Condition Probable Reasons Solutions 1. Blank Screen 1. Sound only, no picture. 1. Parts failure. Change all the parts below 1. X2 2. REG5 3. U1 2. Buttons don’t 1. Buttons malfunction. 1. Micro SW NG 1.Change Micro SW work 3. -
Page 17: Chapter 4. Removal And Replacement
Service Manual Chapter 4. Removal and Replacement Step Description Picture 1. Turn the Device before disassemble. device upside down with the ports facing you. 2.Remove Remove the rubber protectors screws at the corners and take out the screws. 3.Open the Remove bottom cover. -
Page 18: Chapter 5. Parts List
Service Manual Chapter 5. Parts list Description Parts number Description Parts number Chapter 6. Tools 1. Screwdriver cross 2. Oscilloscope Version 1.0 Page 17...
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