55
LC-30HV4M
LC-30HV4H
No sound (1)
No sound (2)
No sound is heard from the speak
er in all modes
.
Chec
k audio circuits of the Displa
y.
Is the monitor audio output set to "V
ar
iab
le"? or
Is the headphone connected?
Are the audio signal outputs of IC2501 (m
ulti-
sound processor) in order?
Pins (36) and (37) of IC2501 (SC1 OUT L/R).
Chec
k IC2501 (m
ulti-sound processor) and its
per
ipher
al circuits
.
Chec
k lines and de
vices betw
een pins (36), (37)
of IC2501 and pins (1), (3) of the A
V
unit
connector (P2502).
(Q2509-10 and Q2513-4)
Set the monitor audio output to "Fix
ed".
Remo
v
e
the headphone
.
The speak
er gener
ates no sound when audio signals are inputted from an e
xter
nal de
vice or a PC
.
Chec
k IC1301 (A s
witch) and its per
ipher
als
.
Are the audio signal outputs of IC1301 (A
V
s
witch) in order?
Pins (52) and (54) of IC1301 (TV MAIN OUT L/R)
Are the audio signal inputs of IC1301 (A
V
s
witch) in order?
Input 1:
pins (2) and (4) of IC1301
Input 2:
pins (9) and (11) of IC1301
Input 3:
pins (16) and (18) of IC1301
Input 4:
pins (23) and (25) of IC1301
PC input:
pins (29) and (31) of IC1301
Are the audio signal input circuits of IC1301 (A
V
s
witch) in order?
Input 1:
Betw
een pins (5), (14) of J1301 and pins
(2), (4) of IC1301
Input 2:
Betw
een pins (2), (11) of J1301 and pins
(9), (11) of IC1301
Input 3:
Betw
een pins (5), (14) of J1401 and pins
(16), (18) of IC1301
Input 4:
Betw
een pin (5), (7) and pins (23), (25) of
IC1301.
PC input:
Betw
een J2403 and pins (29), (31) of
IC1301
Are the audio signal inputs of IC2501 (m
ulti-
sound processor) in order?
Pins (56) and (57) of IC2501 (SCI IN1 L/R)
YES
NO
YES
YES
YES
NO
NO
NO
No monitor audio output or abnor
mal audio
The audio le
v
el is abnor
mal:
Is the monitor audio output set correctly?
"V
ar
iab
le" or "Fix
ed"
YES
No sound at all:
Are the audio outputs of IC2501 (Multi-sound
processor) in order?
Pins (34) and (33) of IC2501 (SC2 OUT L/R)
Chec
k lines and de
vices betw
een pins (34), (33)
of IC2501 and the monitor output (J1104).
Also
chec
k the audio m
ute circuit.
(Q2502-3 and Q1102-3)
YES
Chec
k per
ipher
als of the SR unit DISPLA
Y
OUTPUT 2 ter
minal (SC6000).
YES
Are audio signals applied to the A
V
unit
connectors (pins (1) and (3) of P2502)?
YES
The speak
er gener
ates no sound when
TV signal is receiv
ed.
Are the tuner audio inputs of IC2501 (m
ulti-sound
processor) in order?
Pin (67) of IC2501 (sound IF1)
Pin (69) of IC2501 (sound IF2)
Is the audio signal applied to pin (15) of tuner
(TU1101) output?
Chec
k B
.P
.F
. of SIF1 and SIF2.
(IC1105-6, Q1101, Q1105-9, Q1119 and Q1120)
Chec
k IC2501 (m
ulti-sound processor) and its
per
ipher
al circuits
.
YES
YES
NO
NO
Chec
k
TU1101 (U/V tuner) and its per
ipher
als
.
•
AVC System
Summary of Contents for Aquos LC-30HV4H
Page 11: ...11 LC 30HV4M LC 30HV4H DIMENSIONS 365 430 250 5 180 95 183 Unit mm AVC System ...
Page 29: ...29 LC 30HV4M LC 30HV4H Continued ...
Page 37: ...37 LC 30HV4M LC 30HV4H ËVHiMSP4458G 1Q ASSY IC2501 Multi Sound Processor Block diagram ...
Page 41: ...41 LC 30HV4M LC 30HV4H ËVHiMM1519XQ 1 IC1401 Component Input Video Switch Block diagram ...
Page 43: ...43 LC 30HV4M LC 30HV4H ËVHiTB1274AF 1Q ASSY IC801 IC802 VIDEO CHROMA Processor Block diagram ...
Page 64: ...64 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H CHASSIS LAYOUT AVC System ...
Page 65: ...65 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 66: ...66 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H CHASSIS LAYOUT Display ...
Page 67: ...67 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 68: ...68 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H SYSTEM BLOCK DIAGRAM AVC System ...
Page 69: ...69 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 71: ...71 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 73: ...73 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 75: ...75 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 81: ...81 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 83: ...83 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 84: ...84 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H OVERALL WIRING DIAGRAM Display ...
Page 85: ...85 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 87: ...87 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë SR Unit AVC System ...
Page 88: ...88 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë MAIN Unit 1 7 AVC System ...
Page 89: ...89 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 91: ...91 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 93: ...93 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 94: ...94 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë MAIN Unit 4 7 AVC System ...
Page 95: ...95 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 96: ...96 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë MAIN Unit 5 7 AVC System ...
Page 97: ...97 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 99: ...99 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 101: ...101 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 103: ...103 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 105: ...105 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 106: ...106 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë FRONT Unit AVC System ...
Page 107: ...107 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 108: ...108 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AV Unit 1 5 AVC System ...
Page 109: ...109 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 111: ...111 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 113: ...113 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 114: ...114 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AV Unit 3 5 AVC System ...
Page 115: ...115 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 117: ...117 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 119: ...119 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 135: ...135 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 137: ...137 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 139: ...139 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 141: ...141 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 143: ...143 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 144: ...144 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë MAIN Unit 1 3 Display ...
Page 145: ...145 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 146: ...146 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë MAIN Unit 2 3 Display ...
Page 147: ...147 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 148: ...148 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë MAIN Unit 3 3 Display ...
Page 149: ...149 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 150: ...150 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AUDIO Unit 1 2 Display ...
Page 151: ...151 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 152: ...152 8 7 10 9 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AUDIO Unit 2 2 Display ...
Page 153: ...153 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 154: ...6 5 4 3 2 1 A B C D E F G H 154 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë INVERTER 1 Unit Display ...
Page 155: ...155 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë INVERTER 2 Unit Display ...
Page 157: ...157 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 158: ...6 5 4 3 2 1 A B C D E F G H 158 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë OPERATION Unit Display ...
Page 159: ...159 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë R C LED Unit Display ...
Page 165: ...165 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 169: ...169 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 173: ...173 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 180: ...6 5 4 3 2 1 A B C D E F G H 180 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AVC System PC I F Unit Side A ...
Page 181: ...181 6 5 4 3 2 1 A B C D E F G H LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë AVC System PC I F Unit Side B ...
Page 183: ...183 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 187: ...187 17 16 19 18 15 14 13 12 11 10 LC 30HV4M LC 30HV4H ...
Page 206: ...6 5 4 3 2 1 A B C D E F G H 206 LC 30HV4M LC 30HV4H Ë Ë Ë Ë Ë Display POWER Unit Side A ...