Eiki EIP-3500, Service Manual, Page: 40 / 84

40
EIP-3500
Checking the RGB input
Send RGB signals to INPUT1
or INPUT2. Use keys on the
main unit or remote control to
select INPUT1 or INPUT2.
Are sync signals input to pins
(30) and (31) of IC3005?
Go to "Checking the sync
signal".
Are picture signals input to pins
(43), (48) and (54) of IC3005?
Are picture signals input to
pins (2), (5), (11), (3), (6) and
(10) of IC3003?
When toggling between INPUT1
and INPUT2 by using keys on
the main unit and remote
control, does the voltage of pin
(1) of IC3003 change?
Replace IC3003.
Check Q3123, IC2003 and
peripheral circuits.
Are picture signals input to pins
(1), (5) and (8) of IC4003, and
pins (1), (5) and (8) of IC4004?
When toggling between INPUT1
and INPUT2 by using keys on
the main unit and remote control,
does the voltage of pins (2), (4)
and (7) of IC4003, and pins (2),
(4) and (7) of IC4004 change?
Check IC4009, IC2003 and
peripheral circuits.
Check SC4003, SC4001 and
peripheral circuits.
Replace IC4003 or IC4004.
Are picture signals input to pins (43),
(48) and (54), and sync signals input
to pins (30) and (31) of IC3005?
Check IC3106, 3107, 3108
and peripheral circuits.
Are sync signals output from pins
(64), (65) and (66), and sine wave
output from pin (67) of IC3005? Check IC3005 and peripheral
circuits.
Are signals input to pins (56),
(58), (62) and (64) of SC2501?
Check IC8001 and peripheral
circuits.
Go to "Checking the peripheral
circuits of the formatter".
NO
YES
YES
NO
NO
NO
YES
YES
NO NO
YES
YES
YES
NO
YES
NO
YES
NO
YES
1
1