Sharp LC-15B5E Service Manual ▷ View online
29
LC-15B5E
17
16
19
18
15
14
13
12
11
10
SDA/SCL
HEADPHONE AMP
AUDIO ACTIVE FILTER
AUDIO
CM_L/ R
IC3301
IN 1/2
POWER AMP
SPEAKER
P3302
CA_L/R
SOUND_VCC(+12V)
IC3305
HP L/R
SC2_OUT_L/R
J4021
IC3211
AUDIO_L/ R OUT
JACK
EO CONVERTER
AUDIO OUT
J2203
R/G/BDD0~7
OFL REVERSE
OFL2
LCD
Q3702
CONTROLLER
VD_V/HS
2
I P_DQ0~31 REV
LCD
DAC1CS OUTCON
GRADATION
V0 V7 V21 V64
SC1201
MICON
MP_DA MP_CLK
IC1101
112 V176 V235 V255
SC1202
VCOM
V/HOUT
YIN0~7
C2003
YOUT0~7
PROCESSOR
IC5401
DA/SCL
BUFFER
BUFFER
BUFFER
IC5001
IC5404
E
2
PROM
EA0~15
PC
SC5401
VPC_0~7
FLASH 32M
IC5003
PCA0~15
12SDA_OUT
SIGNAL
12SDA_IN2
PROCESSOR
EA0~2
12SDA_IN1
IC5201
IC8602
IC8603
IC8606
IC5405
PCD0~15
2004
REG IC2002
L_ERR
LMP_GND P3701
Q3705,Q3706 BACK
P6500
702
LIGHT
P6501
603
REG IC1604
REG IC1605
REG IC1802
DC/ AC
HV1/3
OFL1
INVERTER
Q6500~6505
P4001
+1.8V
INV+B(+12V)
&
T6500,T6502
IC5406
IC5403
IC5402
BUFFER
BUFFER
BUFFER
R0~7 G0~7 B0~7
SDRAM 64M
ED0~15
IC2005
IC5006
DC/AC
TRANS
OPC
R/C
LAMP
OFL2
IC3304
IC1201
CSCOM
REV
IC2001
64M
IC8501
12SDA_OUT
AUDIO AMP
HEADPHONE
L/R+OUT
DRIVE
SC1204
PANEL
LAMP ERROR
DETECTOR
CARD
MEDIA
+3.3V
L_ERR
ESET
+3.3V
+3.4V
+2.5V
+5V
+5V
30
LC-15B5E
8
7
10
9
6
5
4
3
2
1
A
B
C
D
E
F
G
H
OVERALL WIRING DIAGRAM
31
LC-15B5E
17
16
19
18
15
14
13
12
11
10
32
LC-15B5E
VOLTAGE MEASUREMENT CONDITION:
1. The voltages at test points are measured on
exclusive AC adaptor and the stable supply voltage
of AC 120V. Signals are fed by a colour bar signal
generator for servicing purpose and the above
voltages are measured with a 20k ohm/V tester.
of AC 120V. Signals are fed by a colour bar signal
generator for servicing purpose and the above
voltages are measured with a 20k ohm/V tester.
INDICATION OF RESISTOR & CAPACI-
TOR:
TOR:
RESISTOR
1. The unit of resistance “
1. The unit of resistance “
Ω
” is omitted.
(K=k
Ω
=1000
Ω
, M=M
Ω
).
2. All resistors are ± 5%, unless otherwise noted.
(J= ± 5%, F= ± 1%, D= ± 0.5%)
3. All resistors are 1/16W, unless otherwise noted.
4. All resistors are Carbon type, unless otherwise
4. All resistors are Carbon type, unless otherwise
noted.
C
: Solid
W
: Cement
S
: Oxide Film
T
: Special
N
: Metal Coating
CAPACITOR
1. All capacitors are
1. All capacitors are
µ
F, unless otherwise noted.
(P=pF=
µµ
F).
2. All capacitors are 50V, unless otherwise noted.
3. All capacitors are Ceramic type, unless otherwise
3. All capacitors are Ceramic type, unless otherwise
noted.
(ML): Mylar
(TA): Tantalum
(PF): Polypro Film
(ST): Styrol
NOTE: MAIN 3 DOES NOT USE IT.
CAUTION:
This circuit diagram is original one, therefore there may be a
slight difference from yours.
slight difference from yours.
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH “
å
” (
) A R E
IMPORTANT FOR MAINTAINING THE SAFETY OF
THE SET. BE SURE TO REPLACE THESE PARTS
WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
THE SET. BE SURE TO REPLACE THESE PARTS
WITH SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
DESCRIPTION OF SCHEMATIC DIAGRAM
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