Panasonic G20 Series, Руководство по устранению неполадок

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Troubleshooting No Power/Dead Unit
A
A
P
P
K
K
STB
Circuit
P7 A7
IC1100
SYSTEM
MPU
3.3V
REG
A1 K1
1 1
POWER
SWITCH
REMOTE
REC.
3 3
LED
STB5V
STB3.3V
Vcc
P9
TV_SUB_ON
5 5
PANEL_MAIN_ON
7 7
KEY_INPUT
5 5
Power
MICOM
IC5480
RELAY
3.2V
6
6
IC603
3.2V
1. A Board.
2. P Board.
3. K Board
These 3 conditions can cause the TV to be dead with no power.
Condition List of boards likely to cause this symptom.
Most Common 2
nd
3
rd
4
th
5
th
6
th
7
th
Dead P A K
Cautions: Disconnect the AC Power prior to making any disconnection or connection.
When taking voltage reading, place the voltmeter probe at the test point, component, or connector’s pin indicated before
connecting the TV to the AC line. This will ensure voltage reading accuracy before the TV shuts down. (Since the TV is
shutting down, expect the voltage to only come up a couple of seconds.)
Slide 58