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SECTION 1 SERVICE INFORMATION
<PT-DZ16K>
A
A Check and repair IC3071 and the peripheral circuits.
Check the clock frequency on R3444.
3D-SDI signal is inputted : Approx 148.5 MHz
HD-SDI signal is inputted : Approx 74.25 MHz
●
SDI1 input checks
●
PinP of RGB1/RGB2 input checks
A
Check the waveform at R3477(G9), R3444(CLK),
R3484(HS,VS).
A Check and repair IC3058 and the peripheral circuits.
Follow the section "A-P.C.Board operation checks".
Check and repair IC3058 and the peripheral circuits.
A
A
Check the voltage on the power lines.
IC3059 1pin : Approx 3.3V
IC3401 1pin : Approx 1.2V
Check and repair IC3059,IC3401 and the peripheral
circuits.
Voltage on IC3072 7pin is 0.4 V or less.
A
A
NG
NG
OK
OK
NG
NG
OK
OK
INF - 35
A
FG/FR-P.C.Board checks and replace.
WF-P.C.Board checks and replace.
A Check the waveform at
C3166(R),C3165(G),C3167(B),TPA07(HS),TPA08(VS)
Turn off a PinP mode.
Check the picture condition RGB1, RGB2 input.
A
Check the waveform at
R3289(G9),R3260(CLK),R3259(HS,VS).
Check and repair IC3058 and the peripheral circuits.
Follow the section "A-P.C.Board operation checks".
A
A Check and repair IC3064(Sync SW) and the peripheral
circuits.
Check the waveform at
R3487(G9),R3446(CLK),R3493(HS,VS).
A Check and repair IC3058 and the peripheral circuits.
NG
OK
OK
NG
OK
OK
NG
NG
INF - 35
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