Home » Sony Manuals » Audio Components » Sony STR-K790 » Manual Viewer

Sony STR-K790 Service Manual - Page 38

IC100, PT6315, IC101, TC74ACT08P

Add to My Manuals
Save this manual to your list of manuals

Page 38 highlights

STR-K790 - DISPLAY Board - IC100 PT6315 VSS VDD GRID1 GRID2 GRID3 GRID4 SEG24/GRID5 SEG23/GRID6 SEG22/GRID7 SEG21/GRID8 SEG20/GRID9 LED1 1 LED2 2 LED3 3 LED4 4 4-bit latch 44 43 42 41 40 39 Grid driver Command decoder Display memory 24 bits x 12 words 38 37 36 35 34 Multiplexed driver 33 SEG19/GRID10 32 SEG18/GRID11 31 SEG17/GRID12 12-bit shift register Data selector OSC 5 OSC DOUT 6 DIN 7 CLK 8 STB 9 Serial interface KEY1 10 KEY2 11 12 13 Timing generator key scan Key data memory (2 x 16 bits) 30 VEE 24-bit output latch segment driver 14 15 16 17 18 19 20 21 22 29 SEG16/KS16 28 SEG15/KS15 27 SEG14/KS14 26 SEG13/KS13 25 SEG12/KS12 24 SEG11/KS11 23 SEG10/KS10 VSS VDD SEG1/KS1 SEG2/KS2 SEG3/KS3 SEG4/KS4 SEG5/KS5 SEG6/KS6 SEG7/KS7 SEG8/KS8 SEG9/KS9 IC101 TC74ACT08P 1A 1 1B 2 1Y 3 2A 4 2B 5 2Y 6 GND 7 14 VCC 13 4B 12 4A 11 4Y 10 3B 9 3A 8 3Y 38

Section	Page
COVER	1
TABLE OF CONTENTS	3
1.GENERAL	4
2.TEST MODE	10
3.ELECTRICAL ADJUSTMENT	12
4.DIAGRAMS	13
4-1. BLOCK DIAGRAM – MAIN SECTION –	14
4-2. BLOCK DIAGRAM – DISPLAY/POWER SECTION –	15
4-3. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE A) –	16
4-4. PRINTED WIRING BOARD – DIGITAL BOARD (SIDE B) –	17
4-5. SCHEMATIC DIAGRAM – DIGITAL BOARD (1/5) –	18
4-6. SCHEMATIC DIAGRAM – DIGITAL BOARD (2/5) –	19
4-7. SCHEMATIC DIAGRAM – DIGITAL BOARD (3/5) –	20
4-8. SCHEMATIC DIAGRAM – DIGITAL BOARD (4/5) –	21
4-9. SCHEMATIC DIAGRAM – DIGITAL BOARD (5/5) –	22
4-10. PRINTED WIRING BOARDS – HDMI SW BOARD, HDMI BRIDGE BOARD (AEP, UK only) –	23
4-11. SCHEMATIC DIAGRAM – HDMI SW BOARD, HDMI BRIDGE BOARD (AEP, UK only) –	24
4-12. PRINTED WIRING BOARD – MAIN BOARD –	25
4-13. PRINTED WIRING BOARD – STANDBY BOARD –	26
4-14. SCHEMATIC DIAGRAM – MAIN BOARD (1/4) –	27
4-15. SCHEMATIC DIAGRAM – MAIN BOARD (2/4), STANDBY BOARD –	28
4-16. SCHEMATIC DIAGRAM – MAIN BOARD (3/4) –	29
4-17. SCHEMATIC DIAGRAM – MAIN BOARD (4/4) –	30
4-18. PRINTED WIRING BOARD – DISPLAY BOARD –	31
4-19. SCHEMATIC DIAGRAM – DISPLAY BOARD –	32
4-20. PRINTED WIRING BOARDS – POWER BOARD, DCAC BOARD, HEADPHONE BOARD –	33
4-21. SCHEMATIC DIAGRAM – POWER BOARD, DCAC BOARD, HEADPHONE BOARD –	34
5.EXPLODED VIEWS	42
5-1. FRONT PANEL SECTION	42
5-2. CHASSIS SECTION	43
6.ELECTRICAL PARTS LIST	44
DCAC	44
DIGITAL	44
DISPLAY	48
HDMI SW	48
HDMI_BRIDGE	49
HEADPHONE	49
MAIN	49
POWER	53
STANDBY	54