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3-1
SECTION 3
ELECTRICAL
CONTENTS
ELECTRICAL TROUBLESHOOTING GUIDE
..........
3-2
1. Power SuPPly on SMPS board
............
3-2
2. Power SuPPly on i/o board
..................3-4
3. SySteM circuit Part
.................................
3-8
4. diSc not recoGniZed
................................
3-8
5. when PlayinG diSc,
no audio outPut
.........................................3-9
6. no oPtical/diGital outPut
...................
3-10
7. no tuner audio outPut
.........................3-11
8. no external audio inPut
......................
3-12
9. no rGb / coMPonent video SiGnal
when Play diSc
..........................................3-13
10. no coMPoSite / S-video SiGnal
when Play diSc
..........................................3-14
11. no tv, external inPut
video SiGnal
...............................................3-15
12. no dv (ieee1394)
inPut (video/audio) SiGnal
....................3-16
13. no dvb_t audio / video outPut
...........3-17
WAVEFORMS
........................................................
3-18
1. SySteM block
.............................................
3-18
2. video block (color bar inPut)
..........
3-21
3. audio block (1kh
z
Sinewave inPut)
...
3-22
4. Serial interFace block
(between Main & i/o)
.................................
3-24
5. tuner block
...............................................
3-25
6. hdMi block
...................................................
3-26
WIRING DIAGRAMS
...........................................
3-27
1. wirinG diaGraM 1
......................................
3-27
2. wirinG diaGraM 2
......................................
3-28
BLOCK DIAGRAMS
............................................
3-30
1. overall block diaGraM
........................
3-30
2. SMPS board block diaGraM
................3-31
3. Main board block diaGraM
.................
3-32
4. Power Main board block diaGraM
..3-33
5. i/o board block diaGraM
......................3-34
6. video inPut block diaGraM
.................3-35
7. video outPut block diaGraM
.............3-36
8. audio inPut block diaGraM
.................3-37
9. audio outPut block diaGraM
.............
3-38
10. Power i/o block diaGraM
.....................3-39
11. Fld tiMer board block diaGraM
.......
3-40
12. Power tiMer and
ci block diaGraM
......................................3-41
CIRCUIT DIAGRAMS
..........................................3-43
1. SMPS circuit diaGraM
............................3-43
2. MPeG circuit diaGraM
............................3-45
3. FlaSh / ddr circuit diaGraM
...............3-47
4. ieee1394 circuit diaGraM
......................3-49
5. ataPi / hdMi / uSb circuit diaGraM
....3-51
6.
i/o µ-coM circuit diaGraM
.....................3-53
7. Scart / rca circuit diaGraM
...............3-55
8. tuner / decoder circuit diaGraM
....3-57
9. ldo circuit diaGraM
...............................3-59
10. coMMon interFace board
circuit diaGraM(oPtional)
...................3-61
11. hdMi dauGhter board
circuit diaGraM
........................................3-63
12. tiMer circuit diaGraM
...........................3-65
13. key circuit diaGraM
................................3-67
• cIrcuIt VoltaGe cHart
...................3-69
PRINTED CIRCUIT BOARD DIAGRAMS
..3-77
1. Main P.c.board
...........................................3-77
2. i/o P.c.board
................................................3-79
3. SMPS (Power) P.c.board
........................
3-83
4. tiMer & key P.c.board
............................
3-85
5. coMMon interFace P.c.board
(oPtional)
.....................................................
3-87
6. hdMi P.c.board
...........................................
3-87
Summary of Contents for RHT497H
Page 11: ...1 10 MEMO ...
Page 34: ...3 19 DDR Bank Address 3 4 6 5 DDR RAS CAS 4 5 DDR Write Enable 6 3 ...
Page 35: ...3 20 12C_SDA 7 12C_SCL 8 IC1101 7 8 ...
Page 37: ...3 22 3 AUDIO BLOCK 1kHz SINEWAVE INPUT AOUT_D0 3 AOUT_MCLK 4 AOUT_FSYNC 1 AOUT_SCLK 2 1 2 3 4 ...
Page 38: ...3 23 SPDIF_OUT 5 5 IC1101 A OUT_l A OUT_R 6 7 7 6 ...
Page 39: ...3 24 4 SERIAL INTERFACE BLOCK Between MAIN I O E5_SPI_MISO 3 E5_SPI_CLK 1 E5_SPI_MOSI 2 1 2 3 ...
Page 40: ...3 25 5 TUNER BLOCK 1 SIF IC901 1 ...
Page 43: ...3 28 2 WIRING DIAGRAM 2 1 2 3 4 5 6 7 8 ...
Page 44: ...3 29 1 2 3 4 5 6 7 8 Option ...
Page 57: ...3 42 MEMO ...
Page 59: ...3 45 3 46 2 MPEG CIRCUIT DIAGRAM ...
Page 60: ...3 47 3 48 3 FLASH DDR CIRCUIT DIAGRAM ...
Page 61: ...3 49 3 50 4 IEEE1394 CIRCUIT DIAGRAM ...
Page 62: ...3 51 3 52 5 ATAPI HDMI USB CIRCUIT DIAGRAM ...
Page 63: ...3 53 3 54 6 I O µ COM CIRCUIT DIAGRAM ...
Page 64: ...3 55 3 56 7 SCART RCA CIRCUIT DIAGRAM ...
Page 65: ...3 57 3 58 8 TUNER DECODER CIRCUIT DIAGRAM ...
Page 66: ...3 59 3 60 9 LDO CIRCUIT DIAGRAM ...
Page 67: ...3 61 3 62 10 COMMON INTERFACE BOARD CIRCUIT DIAGRAM OPTIONAL ...
Page 68: ...3 63 3 64 11 HDMI DAUGHTER BOARD CIRCUIT DIAGRAM ...
Page 69: ...3 65 3 66 12 TIMER CIRCUIT DIAGRAM ...
Page 70: ...3 67 3 68 13 KEY CIRCUIT DIAGRAM ...
Page 75: ...3 77 3 78 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW BOTTOM VIEW ...
Page 76: ...3 79 3 80 2 I O P C BOARD TOP VIEW ...
Page 77: ...3 81 3 82 I O P C BOARD BOTTOM VIEW ...
Page 78: ...3 83 3 84 3 SMPS P C BOARD TOP VIEW BOTTOM VIEW ...
Page 79: ...3 85 3 86 4 TIMER KEY P C BOARD TOP VIEW BOTTOM VIEW ...
Page 81: ...3 89 3 90 MEMO MEMO ...
Page 98: ...4 17 2 DISC SPECIFICATION 3 DISC MATERIALS 1 DVD ROM ...
Page 103: ...4 22 3 Layout of DVD RW disc ...
Page 104: ...4 23 4 Layout of DVD R RW disc ...
Page 133: ...4 52 MEMO ...
Page 134: ...4 53 4 54 CIRCUIT DIAGRAM ...
Page 136: ...4 57 4 58 PRINTED CIRCUIT BOARD DIAGRAMS 1 MAIN P C BOARD TOP VIEW ...