Table Of Contents - Toshiba CN27E90 Technical Training Manual

Contents
SECTION I
OUTLINE ...................................................................... 6
1. OUTLINE OF N5SS CHASSIS (CN32E90, CN35E90) .................................................................... 7
2. PC BOARD CONFIGURATION ........................................................................................................ 7
3. MAJOR SPECIFICATIONS (NEW FUNCTIONS IN ADDITION TO THOSE OF N5SS) ........ 7
4. MODIFICATIONS ON CHASSIS ..................................................................................................... 7
5. CONSTRUCTION OF CHASSIS ...................................................................................................... 8
6. LOCATION OF CONTROLS ............................................................................................................ 9
7. CN32D90 BLOCK DIAGRAM ......................................................................................................... 13
8. [US, CANADA] SPECIFICATION FOR MODEL's 1995 ............................................................ 14
SECTION II
TUNER, IF/MTS/S.PRO MODULE ......................... 16
1. CIRCUIT BLOCK ............................................................................................................................. 17
2. TUNER ................................................................................................................................................ 18
3. IF/MTS/S.PRO MODULE ................................................................................................................. 19
4. PIP TUNER ......................................................................................................................................... 23
SECTION III
CHANNEL SELECTION CIRCUIT ........................ 24
1. OUTLINE OF CHANNEL SELECTION CIRCUIT SYSTEM .................................................... 25
2. OPERATION OF CHANNEL SELECTION CIRCUIT ................................................................ 25
3. MICROCOMPUTER ......................................................................................................................... 26
4. MICROCOMPUTER TERMINAL FUNCTION ........................................................................... 27
5. EEPROM (QA02) ............................................................................................................................... 29
6. ON SCREEN FUNCTION ................................................................................................................. 29
7. SYSTEM BLOCK DIAGRAM ......................................................................................................... 30
8. LOCAL KEY DETECTION METHOD .......................................................................................... 31
9. REMOTE CONTROL CODE ASSIGNMENT ............................................................................... 32
10. ENTERING TO SERVICE MODE ................................................................................................ 35
11. TEST SIGNAL SELECTION ......................................................................................................... 35
12. SERVICE ADJUSTMENT .............................................................................................................. 35
13. FAILURE DIAGNOSIS PROCEDURE ......................................................................................... 36
14. TROUBLE SHOOTING CHART .................................................................................................. 38
SECTION IV
AUDIO OUTPUT CIRCUIT ..................................... 41
1. OUTLINE ............................................................................................................................................ 42
2. AUDIO OUT IC .................................................................................................................................. 43
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