Service manual

15
CP-SX1350(P5SX+)
Picture is not displayed when
the RGB signal is input
Are signal
input at each pin on the
PWB assembly
Drive?
PWB assembly Signal
IC (IS01)
EL4332CS
PWB assembly Drive
LCD panel
NO
YES
Check at operating mode
TPX29 : R signal
TPX26 : G signal
TPX23 : B signal
TPX20 : H sync
TPX19 : V sync
Power unit
(circuit)
Change the
IS01 on the PWB
assembly Signal.
Is it repaired?
YES
NO
NO
YES
Are voltage input
at each pin on the PWB
assembly Drive?
: +16.5V
: +15V
:+4V
:+6V
E800
E800
E800
E800
1
4
6
12
Power unit (circuit)
NO
YES
Are voltage
input at each pin on
the PWB assembly
Drive?
Are signal
input at these
pins of EV01 on the
PWB assembly
Drive?
NO
YES
NO
YES
PWB assembly Signal
IC : IV01
(TC90A92AFG)
IC : IV02
(MM1113XF)
PWB assembly Drive
Check at operating mode
CHV29 : VIDEO (Composite)
CHV28 : S-VIDEO (Y)
CHV27 : S-VIDEO (C)
CHV34 : Component (Y)
CHV35 : Component (Cb)
CHV36 : Component (Cr)
Picture is not displayed when the VIDEO,
S-VIDEO, Component Signal is input
:+16.5V
:+15V
:+4V
:+6V
E800
E800
E800
E800
1
4
6
12
: S-VIDEO
:VIDEO
: COMPONENT VIDEO
IV02
IV02
IV02
1
3
5
7
Does
the pin of
IV02 have the same
waveform as the pin
corresponding to the
selected input ?