Hitachi PJ1165 Service Manual page 16

CP-X1200(P5XLA) / CP-X1250(P5XMLA) / CP-X1200WA(P5XMLB) / PJ1165(P5XMB)
Picture is not displayed when
the RGB signal is input
Are signal
input at each pin on the
PWB assembly
Drive?
Are voltage input
at each pin on the PWB
assembly Drive?
PWB assembly Drive
Check at operating mode
NO
TPX29 : R signal
YES
TPX26 : G signal
TPX23 : B signal
TPX20 : H sync
TPX19 : V sync
NO
E800 : +16.5V
1
E800 : +15V
4
YES
E800 : +4V
6
E800 : +6V
12
LCD panel
Picture is not displayed when the VIDEO,
S-VIDEO, Component Signal is input
Check at operating mode
Are voltage
input at each pin on
the PWB assembly
Drive?
YES
Are signal
input at these
pins of EV01 on the
PWB assembly
Drive?
YES
Does
the pin 7 of
IV02 have the same
waveform as the pin
corresponding to the
selected input ?
IV02
YES
IV02
IV02
IC : IV01
(TC90A92AFG)
Change the
IS01 on the PWB
assembly Signal.
Is it repaired?
NO
PWB assembly Signal
Power unit
(circuit)
NO
E800 : +16.5V
1
E800 : +15V
4
Power unit (circuit)
E800 : +4V
6
E800 : +6V
12
NO
PWB assembly Signal
CHV29 : VIDEO (Composite)
CHV28 : S-VIDEO (Y)
CHV27 : S-VIDEO (C)
CHV34 : Component (Y)
CHV35 : Component (Cb)
CHV36 : Component (Cr)
NO
(MM1113XF)
PWB assembly Drive
: S-VIDEO
1
: VIDEO
3
: COMPONENT VIDEO
5
15
YES
IC (IS01)
EL4332CS
IC : IV02