Sony HCD-DH7BT Service Manual - Page 72

72

HCD-DH3/DH5BT/DH7BT

USB BOARD

IC951

TC94A70FG-007 (S, D) (MP3 PROCESSOR)

Pin No.

Pin Name

I/O

Description

1

AVSS3

-

Ground terminal

2

RFZi

I

RF ripple zero crossing signal input terminal

Not used

3

RFRP

O

RF ripple signal output terminal

Not used

4

SBAD/RFDC

O

Sub beam addition signal or RF peak detection signal output terminal

Not used

5

FEi

O

Focus error signal output terminal

Not used

6

TEi

O

Tracking error signal output terminal

Not used

7

TEZi

I

Tracking error zero crossing signal input terminal

Not used

8

AVDD3

-

Power supply terminal (+3.3 V)

9

FOo

O

Focus coil drive signal output terminal

Not used

10

TRo

O

Tracking coil drive signal output terminal

Not used

11

VREF

I

Reference voltage (+1.65V) input terminal

Not used

12

FMO

O

Sled motor drive signal output terminal

Not used

13

DMO

O

Spindle motor drive signal output terminal

Not used

14

VSSP3

-

Ground terminal

15

VCOi

I

VCO control voltage input terminal

16

VDDP3

-


17

VDD1

-


18

VSS

-

Ground terminal

19

FGiN

I

FG signal input terminal

Not used

20

IO0 (/HSO)

I

Not used

21

IO1 (/UHSO)

O

Not used

22

XVSS3

-

Ground terminal

23

XI

I

System clock input terminal (16.9344 MHz)

24

XO

O

System clock output terminal (16.9344 MHz)

25

XVDD3

-


26

DVSS3

-

Ground terminal

27

RO

O

Audio data (R-ch) output to the input selector

28

DVDD3

-


29

DVR

O

Reference voltage (+1.65V) output terminal

30

LO

O

Audio data (L-ch) output to the input selector

31

DVSS3

-

Ground terminal

32

VDDT3

-


33

VSS1

-

Ground terminal

34

VDD1

-


35

VDDM1

-


36

SRAMSTB

I

S-RAM standby mode control signal input terminal

Fixed at "L" in this set

37

XRST

I

Reset signal

input from the USB controller

"L": reset

38, 39

BUS0, BUS1

I

Serial data input from the USB controller

40

BUS2 (SO)

I


41

BUS3 (SI)

I


42

BUCK (CLK)

I

Serial data transfer clock signal input from the USB controller

43

XCCE

I

Chip enable signal input from the USB controller

44

TEST

I

Setting terminal for test mode

Normally fixed at "L"

45

IRQ

I

Interrupt request signal input terminal

Not used

46

AoUT3 (PO4)

O

Request signal output to the USB controller

47

AoUT2 (PO5)

O

Audio data output terminal

Not used

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Section	Page
COVER	1
TABLE OF CONTENTS	4
1. SERVICING NOTES	5
2. GENERAL	8
3. DISASSEMBLY	13
3-1. DISASSEMBLY FLOW	13
3-2. STEEL CABINET	13
3-3. FRONT PANEL SECTION	14
3-4. BACK PANEL SECTION	14
3-5. MAIN CHASSIS SECTION	15
3-6. DMB15 BOARD	15
3-7. DVD MECHANISM DECK (CDM86-DVBU101)	16
3-8. BELT (MOT)	16
3-9. OPTICAL PICK-UP BLOCK (KHM-313CAB)	17
4. TEST MODE	18
5. ELECTRICAL CHECKS	21
6. DIAGRAMS	22
6-1. BLOCK DIAGRAM – RF SERVO/VIDEO Section –	22
6-2. BLOCK DIAGRAM – TUNER/USB/BLUETOOTH Section –	23
6-3. BLOCK DIAGRAM – MAIN Section –	24
6-4. BLOCK DIAGRAM – KARAOKE/AMP Section –	25
6-5. BLOCK DIAGRAM – PANEL/POWER SUPPLY Section –	26
6-6. PRINTED WIRING BOARDS – SERVO Section (1/2) –	28
6-7. PRINTED WIRING BOARD – SERVO Section (2/2) –	29
6-8. SCHEMATIC DIAGRAM – SERVO Section (1/4) –	30
6-9. SCHEMATIC DIAGRAM – SERVO Section (2/4) –	31
6-10. SCHEMATIC DIAGRAM – SERVO Section (3/4) –	32
6-11. SCHEMATIC DIAGRAM – SERVO Section (4/4) –	33
6-12. PRINTED WIRING BOARD – VIDEO Section –	34
6-13. SCHEMATIC DIAGRAM – VIDEO Section –	35
6-14. SCHEMATIC DIAGRAM – USB Section (1/2) (DH3/DH5BT) –	36
6-15. SCHEMATIC DIAGRAM – USB Section (2/2) (DH3/DH5BT) –	37
6-16. PRINTED WIRING BOARD – USB Section (DH3/DH5BT) –	38
6-17. PRINTED WIRING BOARD – MAIN Section –	39
6-18. SCHEMATIC DIAGRAM – MAIN Section (1/2) –	40
6-19. SCHEMATIC DIAGRAM – MAIN Section (2/2) –	41
6-20. PRINTED WIRING BOARDS – BLUETOOTH Section (DH5BT/DH7BT) –	42
6-21. SCHEMATIC DIAGRAM – BLUETOOTH Section (DH5BT/DH7BT) –	43
6-22. PRINTED WIRING BOARD – XM Section (DH7BT) –	44
6-23. SCHEMATIC DIAGRAM – XM Section (DH7BT) –	45
6-24. PRINTED WIRING BOARD – AMP Section –	46
6-25. SCHEMATIC DIAGRAM – AMP Section –	47
6-26. PRINTED WIRING BOARDS – INPUT/OUTPUT Section –	48
6-27. SCHEMATIC DIAGRAM – INPUT/OUTPUT Section –	49
6-28. PRINTED WIRING BOARD – KARAOKE Section –	50
6-29. SCHEMATIC DIAGRAM – KARAOKE Section –	51
6-30. PRINTED WIRING BOARDS – PANEL Section –	52
6-31. SCHEMATIC DIAGRAM – PANEL Section –	53
6-32. PRINTED WIRING BOARD – POWER SUPPLY Section –	54
6-33. SCHEMATIC DIAGRAM – POWER SUPPLY Section –	55
7. EXPLODED VIEWS	81
7-1. STEEL CABINET SECTION	81
7-2. FRONT PANEL SECTION	82
7-3. BACK PANEL SECTION	83
7-4. DMB15 BOARD SECTION	84
7-5. MAIN BOARD SECTION	85
7-6. POWER BOARD SECTION	86
7-7. DVD MECHANISM DECK SECTION (CDM86-DVBU101)	88
8 ELECTRICAL PARTS LIST	88
AMP	89
ANT	91
BT	91
DMB15	92
HP-AMP	96
JACK	96
MAIN	98
MS-214	102
PANEL	102
POWER	103
POWER HT	104
SP	106
TOP KEY	106
USB	106
VIDEO	108
XM	108
SUPPLEMENT-1	111

Sony HCD-DH7BT Service Manual - Page 72

USB BOARD, IC951, TC94A70FG-007 S, D MP3 PROCESSOR, Pin No., Pin Name, Description

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