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TABLE OF CONTENTS
1.
2.
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3.
3-1. Case ···················································································· 7
3-5. Main Board ········································································· 9
4.
5.
6.
7.
DIAGRAMS
7-1. Circrit Boards Location ···················································· 18
7-2. Block Diagrams ································································ 19
• CD Section ····································································· 19
• Video Section ································································· 20
• Main Section ·································································· 22
• Display/Key Con Section ·············································· 23
7-6. Schematic Diagram Main Section (3/4) ························· 28
TE
L 13942296513
7-7. Schematic Diagram Main Section (4/4) ························· 29
7-10. Printed Wiring Board CD Motor Section ······················· 32
7-14. Printed Wiring Board Panel Section ······························· 36
7-16. Printed Wiring Board AC Sec Standby Section ············· 38
7-18. Printed Wiring Board Leaf SW Section ························· 40
7-22. Printed Wiring Board Video Section ······························ 42
7-25. Schematic Diagram Video Section (3/3) ························ 45
8.
8-1. Case Section ····································································· 58
8-4. CD Mechanism Deck Section-1 (CDM38L-5BD34L) ···· 61
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9.
http://www.xiaoyu163.com
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SAFETY CHECK-OUT
After correcting the original service problem, perform the
following safety checks before releasing the set to the
customer.
1.
Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
2.
Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
3.
Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair. Point
them out to the customer and recommend their replacement.
4.
Look for parts which, through functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.
5.
Check the B+ voltage to see it is at the values specified.
6.
Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270˚C
during repairing.
• Do not touch the soldering iron on the same conductor of the
circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering
or unsoldering.
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