Pioneer PDP-R03U, Training Manual

Page: 55 / 60

PDP-R03U
55.
No picture (4)
NO NO
Is Y signal output
available at pin (39)
and C signal output
at pin (37) of IC1301
(AV SWITCH),
respectively?
YES
YES
YES
Check the circuit
between pin (41) of
IC1301 and pin (20)
of J1104.
Check the circuit
between pins
(39)/(37) of IC1301
and pins (3)/(4) of
SC1102.
Confirm
input signal
is S-INPUT.
No monitor picture (AV-OUT) No monitor picture (S-OUT)
Check
IC1301 and
its peripheral
circuits.
Check
IC1301 and
its peripheral
circuits. Is video signal
output available at
pin (41) of IC1301
(AV SWITCH)?
YES
YES
YES
No picture (5)
NO
No TV picture
Is video output available at pin
(19) of TU1101 and TU1102
(U/V tuner)?
Check U/V tuner and
its peripheral circuits.
NO Is video input signal available
at pins (63) and (60) of
IC1301?
Check the circuit between pin
(19) of TUNER and pins
(63)/(60) of IC1301.
C
Synchronization failure
NO
YES
Is VDM/HDM output available
at pins (28) and (29) of IC803
(RGB DECODER)?
Check IC803 and its
peripheral circuits.
NO
YES
Is HI/VI IN input available at
pins (66) and (65) of
IC803?
Check the circuit
between pins (35)/(34)
of IC1901 and pins
(66)/(65) of IC803.
NO
YES
Is PL-HD/VD output
available at pins (34) and
(35) of IC1901 (PLD)?
Check IC1901 and its
peripheral circuits.
NO
YES
Is HDS/VDS output
available at pins (21) and
(22) on IC1901 (PLD)?
Check IC1901 and its
peripheral circuits.
NO
YES
Is HD1/VD1 input available
at pins (44) and (2) of
IC1901?
Check the circuit
between pins (4)/(9) of
IC801 and pins (2)/(44)
of IC1901.
NO
YES
Is VD2/HD2 input available
at pins (20) and (19) of
IC1901?
Check the circuit
between pins (4)/(9) of
IC802 and pins
(20)/(19) of IC1901.
NO
YES
Is SP-VD/HD input available
at pins (5) and (40) of
IC1901?
Check the circuit
between pins (28)/(16)
of IC604 and pins
(5)/(40) of IC1901.
NO
Check IC801 and its
peripheral circuits.
NO
Is HD2/VDM2 output available
at pins (9) and (4) of IC802
(SUB VIDEO CHROMA)?
Check IC802 and its
peripheral circuits.
NO Is SP-HD/VD output
available at pins (16) and
(28) of IC604 (SYNC SEP)?
Check IC604 and its
peripheral circuits.
MAIN
SUB
HDTV
Is HD1/VD1 output available
at pins (9) and (4) of IC801
(MAIN VIDEO CHROMA)?