BBK DV722S, Service Manual

Page: 2 / 71

CONTENTS
1. SAFETY PRECAUTIONS 1
2. PREVENTION OF ELECTRO STATIC DISCHARGE(ESD)TO ELECTROSTATICALLY
SENSITIVE(ES)DEVICES
1
4. PREVERTION OF STATIC ELECTRICITY DISCHARGE 3
5. ASSEMBLING AND DISASSEMBLING THE MECHANISM UNIT
4
5.1 OPTICAL PICKUP UNIT EXPLOSED VIEW AND PART LIST 4
5.2 BRACKET EXPLOSED VIEW AND PART LIST 6
6. ELECTRICAL CONFIRMATION 8
6.1 VIDEO OUTPUT (LUMINANCE SIGNAL) CONFIRMATION
8
6.2 VIDEO OUTPUT(CHROMINANCE SIGNAL) CONFIRMATION
9
7. MPEG BOARD CHECK WAVEFORM 10
8. AM29LV160D 11
9. SCHEMATIC & PCB WIRING DIAGRAM 26
10. SPARE PARTS LIST
8.1 HY57V641620HG 16
3. CONTROL BUTTON LOCATIONS AND EXPLANATIONS 2
5.3 MISCELLANEOUS 7
8.2 MT1389
8.3 CD4052B
22
19
39
11 . APPENDIX-AM/FM Tuner Specificadtion
45