Sony HCD-DH7BT Service Manual - Page 19

19

HCD-DH3/DH5BT/DH7BT

DVD

SECTION

1. DVD

SERVICE

MODE

GENERAL

DESCRIPTION

This mode let you make diagnosis and adjustment easily by using

the remote commander and the TV screen. The instructions,

diagnostic results, etc. are given on the on-screen display.

2. ENTERING

DVD

SERVICE

MODE

Procedure:

1.

Press the

I

/

1

button to turn on the system.

2.

Press the

DVD

N

button to select the “DVD”.

3.

Press three buttons of

x

,

[VOLUME°+]

and

[PROGRESSIVE]

simultaneously.

4.

The message “SERVICE IN” appears on the fluorescent

indicator tube and top menu of the Remocon Diagnosis Menu

appears on the on-screen display on the TV screen as follows.

The model name, IF-con version and Syscon version are

displayed at the bottom of the on-screen display.

Remocon Diagnosis Menu

0. External Chip Check

1. Servo Parameter Check

2. Drive Manual Operation

3. Emergency History

4. Version Information

Model Name :DH_xx

IF-con:Ver.xx.xx(xxxx)

Syscon:Ver.x.xxx

5.

To execute each function, press its number by using numeric

button on the remote commander.

6.

To release from this mode, press the

I

/

1

button to turn off the

system.

3. EXECUTING

IOP

MEASUREMENT

In order to execute IOP measurement, the following standard

procedures must be followed.

Procedure:

1.

From the top menu of Remocon Diagnosis Menu, select “2

Drive Manual Operation” by pressing the

[2]

button on the

remote commander. The following screen appears on the on-

screen display

Drive Manual Operation

1. Servo Control

2. Track/Layer Jump

3. Manual Adjustment

4. Tray Aging Mode

5. MIRR time Adjust

0. Return to Top Menu

2.

Select “3. Manual Adjustment” by pressing the

[3]

button on

the remote commander. The following screen appears on the

on-screen display.

Manual Adjust

1. Track Balance Adjust:

2. Track Gain Adjust:

3. Focus Balance Adjust:

4. Focus Gain Adjust:

5. Eq boost Adjust:

6. Iop:

7. TRV. Level:

8. S curve(FE) Level:

9. RFL(PI) Level:

0. MIRR Time:

V

v

Change Value

[RETURN]Return to previous menu

3.

Select “6. Iop:” by pressing

[6]

button on the remote

commander.

4.

Wait until a hexadecimal number appear in the on-screen

display as below.

Manual Adjust

1. Track Balance Adjust:

2. Track Gain Adjust:

3. Focus Balance Adjust:

4. Focus Gain Adjust:

5. Eq boost Adjust:

6. Iop: 57

7. TRV. Level:

8. S curve(FE) Level:

9. RFL(PI) Level:

0. MIRR Time:

V

v

Change Value

[RETURN]Return to previous menu

5.

Convert data from hexadecimal to decimal by using conversion

table.

6.

If the value is smaller than 93 (decimal), then it is OK. However

if the value is higher than 93, then BU (base unit) is defective

and need to be change.

7.

Press the

O

RETURN

button on the remote commander to

return to previous menu.

8.

Press the

[0]

button on the remote commander to return to the

top menu of Remocon Diagnosis Menu.

9.

Press the

I

/

1

button to turn off the system.

4. CHECKING

EMERGENCY

HISTORY

To check the emergency history, please follow the following

procedure.

Procedure:

1.

From the top menu of Remocon Diagnosis Menu, select “3.

Emergency History” by pressing the

[3]

button on the remote

commander. The following screen appears on the on-screen

display.

Emg. History Check

Laser Hours

CD

999h

59min

DVD

999h

59min

01. 01 05 04 04

00 92 46 00

00 00 00 00

00 00 23 45

02. 02 02 01 01

00 A9 4B 00

00 00 00 00

00 00 23 45

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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 19

Service, General, Description, Entering, Executing, Measurement, Checking, Emergency,

Page 19 highlights