Hitachi CP-SX1350 P5SX+ Service Manual page 15

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