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VC-H820U
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Sharp VC-H820U Service Manual Page 51
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Table of contents
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3-1
1
3) RS232 waveform during procedure(Downloading)
TXD(J6 PIN3)
RXD(J6 PIN 2)
FIG 1-3
4) Flash R/W enable signal during download(Downloading)
FRD(IC5A1 PIN 28)
FWR(IC5A1 PIN 1
1)
FIG 1-4
1
2
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SD-4900
1
SECTION 1
2
DVD PLAYER
3
Safety Precautions
4
PORTABLE CART
5
Table of Contents
6
Playable Discs
7
Precautions
8
Notes on Discs
8
About Symbols
8
Remote Control
10
INTRODUCTION
11
Connections
12
Connecting to a TV
12
Connections (Continued)
13
On-Screen Display
14
Before Operation
14
General Explanation
14
Before Operation (Continued)
15
On-Screen Display (Continued)
15
Initial Settings
16
Playing a DVD and Video CD
20
General Features
20
OPERATION
21
Slow Motion
21
Repeat A-B
21
General Features (continued)
22
Special DVD Features
22
Moving to another GROUP
23
Viewing another PAGE
23
Notes on MP3/WMA Recordings
24
Viewing a JPEG disc
26
Operation with JPEG Disc
26
Programmed Playback
27
Screen Saver
28
Dimmer Function
28
Video Mode Setting
28
Speaker Settings
29
Troubleshooting
30
REFERENCE
31
Area Code List
32
SERVICING PRECAUTIONS
37
SECTION 2
38
CABINET & MAIN CHASSIS
38
EXPLODED VIEWS
39
2. Packing Accessory Section
40
SECTION 3
41
ELECTRICAL
41
1. Power check flow
42
2. System operation flow
43
3. Test & debug flow
44
Check the laser power circuit
47
2. SDRAM CLOCK
52
3. TRAY OPEN/CLOSE SIGNAL
52
1) Tray open/close waveform
52
2) Tray close waveform
53
3) Tray open waveform
53
8. FOCUS ON WAVEFORM
57
11. RF WAVEFORM
60
1) Full colorbar signal(CVBS)
61
1) Audio L/R
62
2) Audio related Signal
63
DV7800M'S
64
2. Power(SMPS) Block Diagram
65
3. SERVO Block Diagram
66
CIRCUIT DIAGRAMS
70
2. SYSTEM CIRCUIT DIAGRAM
71
CD/DVD LD
72
'03. 3. 10 R14603B
73
5. AV/JACK CIRCUIT DIAGRAM
74
• CIRCUIT VOLTAGE CHART
75
PRINTED CIRCUIT DIAGRAMS
77
2. KEY P.C.BOARD
78
3. TIMER P.C.BOARD
78
LOCATION GUIDE
79
CONTENTS
80
DECK MECHANISM PARTS LOCATION
81
1.Holder Clamp (Fig. 4-1)
82
2. Tray Disc (Fig. 4-2)
82
4. Rubber Rear (Fig. 4-3)
83
DECK MECHANISM DISASSEMBLY
84
RUN DATE : 27-JULY-02
88
*** CHASSIS ASSEMBLY ***
89
*** DECK ASSEMBLY ***
90
TOSHIBA CORPORATION
102
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