Pioneer PDP-R03E, Service Manual

Page: 104 / 112

104
PDP-R03E
No picture (2)
NO
YES
NO
YES
No e
xter
nal input picture (SCAR
T2
Y/C)
Is INPUT2
Y/C selected on
Input/Select men
u screen?
Select INPUT2
Y/C on
men
u selection screen.
Is
Y signal input a
vailab
le at
Pin (10) and C signal input at Pin (12) respectiv
ely on
IC1301 (A
V SWITCH)?
Chec
k the circuit betw
een
SCAR
T2 Pins (20), (15)
and IC1301 Pins (10), (12).
NO
YES
NO
YES
NO
No e
xter
nal input picture (SCAR
T3
Y/C)
Is INPUT3
Y/C selected on
Input/Select men
u
screen?
Select INPUT3
Y/C on
men
u selection screen.
Is
Y signal input a
vailab
le at
Pin (17) and C signal input at Pin (19) respectiv
ely on
IC1301 (A
V SWITCH)?
Chec
k the circuit betw
een
SCAR
T3 Pins (20), (15)
and IC1301 Pins (17), (19).
Chec
k IC1301 (A
V
SWITCH) and per
ipher
al circuits
.
YES
YES
NO
YES
No TV
picture
Is video output a
vailab
le at
Pin 23 of
TU1 (U/V tuner)?
Chec
k
TU1 (U/V tuner)
and per
ipher
a
ls
.
Is video input signal a
v
ailab
le at Pin (63) on
IC1301 (A
V SWITCH)?
Chec
k the circuit
betw
een
TUNER Pin (23)
and IC1301 Pin (63).
No picture (3)
NO
YES
NO
YES
No e
xter
nal input picture (SCAR
T1 RGB)
Is INPUT1 RGB selected on Input/Select men
u
screen?
Select INPUT1 RGB on men
u selection screen.
Is RGB signal input a
v
ailab
le at Pins (59),
(61) and (63) on IC1401 (A
V SWITCH)?
Chec
k the circuit betw
een
SCAR
T1 Pins (15), (11),
(7) and IC1401 Pins (59), (61), (63).
NO
YES
NO
YES
No e
xter
nal input picture (SCAR
T3 RGB)
Is INPUT3 RGB selected on Input/Select men
u
screen?
Select INPUT3 RGB on men
u selection screen.
Is RGB signal input a
v
ailab
le at Pins (5), (7)
and (9) on IC1401 (A
V
SWITCH)?
Chec
k the circuit
betw
een SCAR
T3 Pins
(15), (11), (7) and IC1401 Pins (5), (7), (9).
NO
YES
NO
YES
No component picture
Is INPUT3 COMPONENT selected on Input/Select men
u screen?
Select INPUT3 COMPONENT on men
u
selection screen.
Is component signal input a
v
ailab
le at Pins (15), (17)
and (19) on IC1401 (A
V
SWITCH)?
Chec
k the circuit betw
een
component signal input ter
m
inal (J1101) and IC1401
Pins (15), (17) and (19).
NO
YES
Is RGB signal output a
v
ailab
le at Pins (50), (48)
and (46) on IC1401?
Chec
k IC1401 (A
V
SWITCH) and per
ipher
al
circuits
.
NO
YES
Is RGB signal output a
v
ailab
le at Pins (44), (42)
and (40) on IC1401?
Chec
k IC1401 (A
V
SWITCH) and per
ipher
al
circuits
.
NO
YES
YES
YES
YES
Is component signal output a
v
ailab
le at Pins (38), (36)
and (34) on IC1401?
Chec
k IC1401 (A
V
SWITCH) and per
ipher
al
circuits
.
NO
Is RGB signal input a
vailab
le
at Pins (27), (26) and (25) respectiv
ely on IC801
(MAIN VIDEO
CHR
OMA)?
Chec
k the circuit betw
een
IC1401 Pins (50), (48), (46) and IC801 Pins (27), (26), (25).
NO
Is RGB signal input a
vailab
le at
Pins (27), (35), (26), (34), (25) and (33) respectiv
ely on IC802
(SUB VIDEO
CHR
OMA)?
Chec
k the circuit betw
een
IC1401 Pins (44), (42), (40) and IC802 Pins (27), (35), (26), (34), (25) and (33).
NO
Is component signal input a
v
ailab
le at Pins (3), (4)
and (5) respectiv
ely on
IC803 (RGB DECODER)?
Chec
k the circuit betw
e
en
IC1401 Pins (38), (36), (34) and IC803 Pins (3), (4) and (5).
C
A B
Is MAIN-Y signal output a
vailab
le at Pin (56) and MAIN-C signal output at Pin (58) respectiv
ely on IC1301?
Is SUB-Y signal output a
vailab
le at Pin (44) and SUB-C signal output at Pin (47) respectiv
ely on IC1301?
DE
F