Philips LX-3000D, Service Manual

Page: 8 / 74

2-2
REPAIR INSTRUCTIONS
2-2
Audio Output
No Sound
DVD Audio
No Output
C
Aux/TV
No Output
Tuner
No Output
E
Ear Head Phone
No Sound
Audio Line
No Output
G
Center Line
No Output
Subwoofer Line
No Output
I D
F
H
J
VFD Display
No Show
B
Digital Line
No Output
K
B
VFD Display
No Show
RE-Insert and fix
the cable
Yes
And Key Function
And Key Function
Check Control BD CN205
Cable loose or bad INT
RE-Insert and fix
the cable
Yes
No
And Standby BD RB202
Check Control BD CN205 Pin6
Yes Or No (+5V)
And Standby BD RB202 Pin3
Check Back Power Bd
Power Supply Circuit
No
Yes
Check Main BD CN201
Cable loose or bad INT
And CN904
No
Check Test CN201
Pin7=+5V
Pin8=-26V
Pin9.11=AC1.2V
Pin10=AC0V
Power Supply Circuit
Pin7 No +5V
Check +5V
No
Check T901 CN904
Power Supply Circuit
Check Test CN201 Data From
Pin4/CE
Pin5/CLOCK
Pin6/DATA
And Fuse Resistor
R925. R926. R927
Mpeg BD CPU To RB102 Cable
No Data
Check RB102
Cable loose or bad INT
RE-Insert and fix
the cable
Yes
No
Check Mpeg BD IC6(CPU)
And IC2 Bad Cause Damage
Yes Yes
Check VFD Control BD Section Bad Cause Damage
Note: BD=Board
All Function
No Working
A
All function
No Working
A
RE-Insert and fix
the cable
Yes
All cable is loose
or bad INT
Check Back power BD
F981
Work
OK
RB900 Pin1,3 = 5V
Change IC903
No
IC903 Pin3 to
Check All System
Check Mpeg BD section
All VCC=(+5V)
Yes
All power supply
Check Repair
Check CN203
Change F981
Bad
Yes
Pin3=(+5V)
Check Main BD fuse F903
Bad Cause Damage
OK
Change F903
Bad
Working or Not
Panel stanby LED show
Not
No
Bad Cause Damage
Check T901
Change T901
Bad
Bad Cause Damage
Ok
No
Between T981 to IC982
Circuit
Repair
CN203 Pin1 =(+ 5V)
Check back power BD
Yes
No
Check main BD
All VCC33=(+3.3V)
Repair Mpeg BD section
All power supply circuit
Check Mpeg BD
Pin49(OSC frequency 27MHz)
IC6(CPU) Pin24(Reset) and
Repair Mpeg BD
IC1,IC7,IC9 circuit
Between IC6(CPU) to
Systm power control
No
Control BD IC981
circuit
Yes
Yes
Main BD = LVM0189C011
MPEG BD = LFF0205C001
Surround BD = LVA0192C001
Tuner BD = LVT0187C001
MAIN UNIT REPAIR CHART