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Sony KE-50XBR900 Service Manual - Page 44

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IC4703 SURROUND 64 L IN 63 R IN OUTA 16 OUTB 36 IC4704 BUFFER 3 1 2 5 7 6 IC4707 BUFF 3 1 2 5 7 6 62 FL IN 61 FR IN 60 RL IN 59 PR IN SDA 22 SDA 58 C IN SCA 23 SCL SDA 57 SW IN SCL IC4705 MIX/LPF 3 1 5 2 7 6 IC4708 7 CH0 COM 1 6 CH1 5 SEL IC4706 2 1 3 5 7 6 Q4707,4710 MUTE 9V Q4708,4709 MUTE D4707 CN4703 27 5.1 OUT FL 29 5.1 OUT FR 31 5.1 OUT RL 33 5.1 OUT RR 35 5.1- OUT-C 37 5.1-OUT-LFE 13 5.1-CHDM-L 15 5.1-CHDM-R 7 SUR-L J 9 SUR-R 17 MAIN L 19 MAIN R 11 WF OUT TO AD BOARD CN4306 25 WOOFER MUTE 21 VER L 23 VER R SCL 4 CLK SDA 5 DAT 48 TMDS-RST 46 BUS-SEL 44 ROM-WP 41 ROM-SCL 42 ROM-SDA 39 BINT CN4704 1 GND 2 BINT 3 SDA 4 SCL 5 ROM-SDA 6 ROM-SCL 7 ROM-WP 8 BUS-SEL 9 TMDS-RST 10 GND AU(SURROUND) KE-50XBR900(UC) 4-9

Section	Page
MODIFICATION HISTORY	1
FCOVER	2
SAFETY CHECK-OUT	4
DIAGNOSIS	6
TABLE OF CONTENTS	8
1. DISASSEMBLY	10
1-1. PANEL UNIT (PDM-5000)	10
1-1-1. REAR COVER REMOVAL	10
1-1-2. K AND F BOARDS REMOVAL	11
1-1-3. P BOARD REMOVAL	12
1-1-4. G AND F2 BOARDS REMOVAL	13
1-1-5. R1 BOARD REMOVAL	14
1-1-6. R2 BOARD REMOVAL	15
1-2. MEDIA RECEIVER UNIT (MBT-XBR900)	16
1-2-1. PANEL AND COVERS REMOVAL	16
1-2-2. H1 BOARD REMOVAL	17
1-2-3. H4 BOARD REMOVAL	18
1-2-4. H3 BOARD REMOVAL	19
1-2-5. MS2 BOARD REMOVAL	20
1-2-6. H2 BOARD REMOVAL	21
1-2-7. A BOARD REMOVAL	22
1-2-8. B BLOCK ASSY REMOVAL	23
1-2-9. M, AD, AND AU BOARDS REMOVAL	24
1-2-10. AD AND AU BOARDS REMOVAL	25
1-2-11. M BOARD REMOVAL	26
1-2-12. IF BOARD REMOVAL	27
1-2-13. U1 BOARD REMOVAL	28
1-2-14. U2 BOARD REMOVAL	29
2. ADJUSTMENTS	30
2-1.VS,VD Voltage Adjustment (PDM-5000)	30
2-2.White Balance Adjustment (PDM-5000)	31
3. TROUBLESHOOTING	34
3-1. DISPLAY UNIT (PDM-5000)	34
3-2. MEDIA RECEIVER UNIT (MBT-XBR900)	35
4. DIAGRAMS	36
4-1. BLOCK DIAGRAMS	36
4-1-1. DISPLAY UNIT (PDM-5000)	36
4-1-2. MEDIA RECEIVER UNIT (MBT-XBR900)	41
4-2. FRAME DIAGRAM	50
4-3. CIRCUIT BOARDS LOCATION	51
4-3-1. DISPLAY UNIT (PDM-5000)	51
4-3-2. MEDIA RECEIVER UNIT (MBT-XBR900)	52
4-4. SCHEMATIC DIAGRAMS AND PRINTED WIRING BOARDS	53
4-4-1. DISPLAY UNIT (PDM-5000)	54
(1) Schematic Diagram of F Board	54
(2) Schematic Diagram of F2 Board	55
(3) Schematic Diagrams of G Board	56
(4) Schematic Diagram of K Board	60
(5) Schematic Diagrams of P Board	62
(6) Schematic Diagrams of R1 and R2 Boards	67
4-4-2. MEDIA RECEIVER UNIT (MBT-XBR900)	68
(1) Schematic Diagrams of A Board	68
(2) Schematic Diagrams of AD Board	71
(3) Schematic Diagram of AU Board	76
(4) Schematic Diagram of DP Board	78
(5) Schematic Diagrams of H1 and H5 Boards	80
(6) Schematic Diagram of H2 Board	82
(7) Schematic Diagrams of H3 AND H4 Boards	83
(8) Schematic Diagram of IFA Board	84
(9) Schematic Diagrams of M Board	86
(10) Schematic Diagram of MS2 Board	92
(11) Schematic Diagram of U1 Board	94
(12) Schematic Diagram of U2 Board	96
(13) Schematic Diagrams of BM1C Board	97
(14)Schematic Diagrams of DICA Board	100
4-5. SEMICONDUCTORS	106
5. EXPLODED VIEWS	109
5-1. DISPLAY UNIT(PDM-5000)	110
5-2. MEDIA RECEIVER UNIT-1(MBT-XBR900)	112
5-3. MEDIA RECEIVER UNIT-2(MBT-XBR900)	114
5-4. PACKING MATERIALS FOR DISPLAY UNIT(PDM-5000)	115
5-5. PACKING MATERIALS FOR MEDIA RECEIVER UNIT(MBT-XBR900)	116
6. ELECTRICAL PARTS LIST	117