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(7) Schematic Diagrams of H3 AND H4 Boards 1 2 3 4 5 6 7 A S171 CH UP S172 CH DW S173 VOL UP S174 VOL DW S175 SELEC S176 SERVICE R175 15k :CHIP R172 B 1.5k :CHIP R173 2.7k :CHIP R174 5.6k :CHIP R171 D171 1.2k DAP202K-T-146 :CHIP C171 0.01 F:CHIP CN171 4P WHT :1.5DL TO H1 BOARD CN107 1 GND 2 GND 3 KEY-WAKE 4 KEY1 C H3 (KEY INPUT) B-SS4335-H3. D 1 2 3 4 5 6 7 A R191 1k H4 1/16W :CHIP (POWER) C192 0.01 F:1608 B S191 C191 0.01 POWER F:1608 STBY+5V 6 E5 E4 P-ON 3 P-SW(-) 2 P-SW(+) 1 CN191 B-SS4335-H4. 6P WHT :1.5DL C TO H1 BOARD CN106 D H3 [ KEY INPUT ] - H3 BOARD - CN171 S173 S174 H3 BOARD Terminal name of semiconductors in silk screen printed circuit (*) Ref. * D171 !º *: Refer to Terminal name of semiconductors in silk screen printed circuit (see page 4-18) S172 S176 CN172 S175 S171 R172 R174 R173 R191 D171 C171 R171 R175 H4 [ POWER ] - H4 BOARD - C192 D191 C191 S191 CN191 KE-50XBR900(UC) 4-48

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

Match case Limit results 1 per page

KE-50XBR900(UC)

4-48

(7)

Schematic Diagrams of H3 AND H4 Boards

[ KEY INPUT ]

— H3 BOARD

—

: Refer to Terminal name of semiconductors

in silk screen printed circuit (see page 4-18)

Ref.

D171

!º

H3 BOARD

Terminal name of semiconductors in

silk screen printed circuit (

)

[ POWER ]

— H4 BOARD

—

CN107

B-SS4335<UC.>-H3.

(KEY INPUT)

GND

TO H1 BOARD

KEY-WAKE

KEY1

GND

R171

R172

R173

R174

R175

C171

D171

S171

S172

S173

S174

S175

S176

CN171

1.5k

:CHIP

2.7k

:CHIP

5.6k

:CHIP

15k

:CHIP

1.2k

:CHIP

DAP202K-T-146

0.01

F:CHIP

CH UP

CH DW

VOL UP

VOL DW

SELEC

SERVICE

WHT

:1.5DL

POWER

B-SS4335<UC.>-H4.

CN106

(POWER)

TO H1 BOARD

P-SW(+)

P-SW(-)

P-ON

STBY+5V

S191

C192

C191

R191

CN191

0.01

F:1608

0.01

F:1608

1/16W

:CHIP

WHT

:1.5DL

CN171

CN172

S171

S172

S173

S174

S175

S176

C171

D171

R171

R172

R173

R174

R175

CN191

S191

C191

C192

D191

R191