25
DVD-2500BTCI
Yes
No
FLOW CHART NO.12
The key operation is not functioning.
Are the contact point and the installation state of
the key switches (SW3000-3003,
SW3006-SW3010, SW3100) normal?
When pressing each switches (SW3000-3003,
SW3006-SW3010, SW3100), do the voltage of
Pin(3,4) of IC2000 increase?
Check the switches (SW3000-3003,
SW3006-SW3010,SW3100) and their periphery,
and service it if detective.
Check the line between the RS3000 (remote control
receiver) and the Pin(27) of IC2000, and service it if
detective.
No
Re-install the switches (SW3000-3003,
SW3006-SW3010, SW3100) correctly or replace
the poor switch.
Replace IC2000.
Yes
FLOW CHART NO.13
No operation is possible from the remote control unit.(Operation is possible from the unit.)
Replace the RS3000 (remote control receiver) or
remote control unit.
Is the "L" pulse sent out Pin(1) of RS3000 (remote
control receiver) when the remote control unit is activated?
Is the "H" pulse inputted to the Pin(27) of IC2000?
Replace IC2000.
Is 5V voltage supplied to Pin(1) of RS3000
(remote control receiver) ?
Yes
No
Check EV+5V line and service it if defective.
No
No
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
FLOW CHART NO.11
The fluorescent display tube does not light up.
Is 3.3V voltage supplied to Pin(64) of IC3001?
Is the voltage of approximately -30V supplied to
Pin(56) of IC3001?
Is there 1.8MHz oscillation at Pin(58) of IC3001?
Are the filament voltage supplied between Pin(1)
and Pin(62) of the fluorescent display tube?
And the negative voltage applied between these
pins and GND?
Replace the fluorescent display tube.
Check the P-ON+3.3V line and service it if
defective.
Check the -FL line and service it if defective.
Check R3006, C3003, IC3001 and their periphery,
and service it if defective.
Check FL-SW
line, and service
it if defective.
Is the "H" signal inputted
to the base of Q2507?
Check D1010, D1017, T1001, and their periphery,
and service it if defective.
Is -20V voltage supplied to collector of Q2502?
No
Yes
Yes
No
Check Q2502, Q2508 and their periphery,
and service it if defective.
Summary of Contents for DVD-2500BTCi - Blu-Ray Disc Player
Page 2: ...2 DVD 2500BTCI MEMO ...
Page 35: ...35 DVD 2500BTCI AV Schematic Diagram ...
Page 36: ...36 DVD 2500BTCI Sub Microcontroller Schematic Diagram ...
Page 39: ...39 DVD 2500BTCI SD Schematic Diagram RS232C Schematic Diagram ...
Page 42: ...42 DVD 2500BTCI FE Main 3 5 Schematic Diagram ...
Page 53: ...53 DVD 2500BTCI BE Main 9 9 Schematic Diagram ...
Page 55: ...55 DVD 2500BTCI MEMO ...
