Sharp XV-Z1E Service Manual ▷ View online
TROUBLE SHOOTING TABLE
(Continued)
37
XV-Z1E/A
Checking the remote control circuit
Yes
No
IC5001, IC5101, IC5102 or nearby
circuit in trouble.
circuit in trouble.
Press the MENU key. Are there
signal outputs at pins (29) and (30) of
connector CA?
signal outputs at pins (29) and (30) of
connector CA?
Remote control receiver or its nearby
circuit in trouble.
circuit in trouble.
Checking the through-output circuit
Yes
No
Yes
No
Is specified cable connected between
LCP and monitor?
LCP and monitor?
Yes
No
IC2003, IC2004, IC2005 or nearby
circuit in trouble.
circuit in trouble.
Does analog output come from PC?
No digital output.
Use specified cable.
Are LCP and monitor in sync?
IC2001 or nearby circuit in trouble.
TROUBLE SHOOTING TABLE
(Continued)
38
XV-Z1E/A
No image
Yes
Is lamp on?
Yes
No
Is voltage aplied to connector EA?
Refer to the troubleshooting of the
lamp/ballast unit.
lamp/ballast unit.
No
Lamp fails to light up.
Yes
No
Are there signal at pins (1), (12) and
(19) of VS connector?
(19) of VS connector?
Check input terminal circuit and its
parts.
parts.
Yes
Yes
No
No
Are there H-SYNC puls at pins (5),
(6), of IC801?
(6), of IC801?
Check peripheral circuit of IC602 and
its parts.
its parts.
Yes
No
Are there RGB signal at pins (31),
(32) and (33) of IC801?
(32) and (33) of IC801?
Are there Y-signal inputs at pin (39),
C-signal input at pin (20) of IC801?
C-signal input at pin (20) of IC801?
Check peripheral circuit
of IC803, IC814.
of IC803, IC814.
Check peripheral circuit
of IC408, IC401~IC410.
of IC408, IC401~IC410.
Yes
No
Are there RGB signal at pins (5), (7)
and (9) of CC connector?
and (9) of CC connector?
Check peripheral scan convertor
circuit.
circuit.
Yes
No
Are there RGB signal at pins (9), (10)
and (11) of IC4028?
and (11) of IC4028?
Check peripheral double scan circuit.
Yes
No
Are there RGB signal at pin (5) of
IC4001, R signal at pin (5) of IC4002,
B signal at pin (5) of IC4003?
IC4001, R signal at pin (5) of IC4002,
B signal at pin (5) of IC4003?
Check peripheral circuit of IC4028,
IC4029, IC4030 and IC4031.
IC4029, IC4030 and IC4031.
Yes
No
Are there palus signal at pins (3)~(8)
of LCD panel?
of LCD panel?
Check the LCD terminals' waveforms
and connection with LCD panel.
and connection with LCD panel.
Check the LCD terminals' waveforms
and connection with LCD panel.
and connection with LCD panel.
TROUBLE SHOOTING TABLE
(Continued)
39
XV-Z1E/A
No colour or unusual tint with NTSC signal
No
Yes
IC5001 or nearby circuit in trouble.
IC1201, IC1206 or nearby circuit in
trouble.
trouble.
Set user control to standard value.
Check the video board.
Check the video board.
Is colour mode judged properly?
Does user control work?
Video board in trouble.
Yes
Change process value for
adjustment.
adjustment.
Yes
No
No
No colour or unusual tint with PAL signal
No
Yes
IC5001 or nearby circuit in trouble.
IC1201, IC1206 or nearby circuit in
trouble.
trouble.
Set user control to standard value.
Check the video board.
Check the video board.
Is colour mode judged properly?
Does user control work?
Video board in trouble.
Yes
Change process value for
adjustment.
adjustment.
Replace the video board. Are colour
and tint as specified?
and tint as specified?
Yes
No
No
No colour or unusual tint with SECAM signal
No
Yes
IC5001 or nearby circuit in trouble.
IC1201, IC1206 or nearby circuit in
trouble.
trouble.
Set user control to standard value.
Check the video board.
Check the video board.
Is colour mode judged properly?
Does user control work?
Video board in trouble.
Yes
Change process value for
adjustment.
adjustment.
Replace the video board. Are colour
and tint as specified?
and tint as specified?
Yes
No
No
Replace the video board. Are colour
and tint as specified?
and tint as specified?
TROUBLE SHOOTING TABLE
(Continued)
40
XV-Z1E/A
Yes
Yes
No synchronization
No
Yes
Yes
No
No
No
Check the signal line from IC6005.
Is there video signal input at pins (15),
(17) or (19) of IC6001?
(17) or (19) of IC6001?
Are HSYNC and VSYNC signals from
pins (41) and (42) of IC6001 in sync
with input signal?
pins (41) and (42) of IC6001 in sync
with input signal?
Check IC6001 and its peripheral
circuits.
circuits.
Check the signal line from the
connector.
connector.
Which of vertical and horizontal
syncs fails?
syncs fails?
Is there signal input from pin (22) of
connector VS to pin (214) of IC1201?
connector VS to pin (214) of IC1201?
Is there signal input from pin (20) of
connector VS to pin (215) of IC1201?
connector VS to pin (215) of IC1201?
Check IC1201 and its peripheral
circuits.
circuits.
Vertical
Horizontal
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