Toshiba 23HLV87 Support Question
Toshiba 23HLV87 Support Question
Find answers below for this question about Toshiba 23HLV87 - 23" LCD TV.Need a Toshiba 23HLV87 manual? We have 1 online manual for this item!
Question posted by brawson on September 8th, 2010
Set Up Menu Has No Text
I was setting up the TV for cable. After selecting "Cable", all of the menu text disappeared. There are only colored rectangles where text normally had been. Powered off, then on, no change. DVD works fine? Is there any other reset or is this a known problem?
Current Answers
Related Toshiba 23HLV87 Manual Pages
Circuit Diagrams - Page 1
FILE NO. 810-200728GR REVISED: 01
CIRCUIT DIAGRAMS
LCD TV/DVD COMBINATION
23HLV87
l
The above model is classified as a green product (*1), as indicated by the underlined serial number.
DOCUMENT CREATED IN JAPAN, March, 2007 GREEN For (*1) and (*2), see ...
Circuit Diagrams - Page 3
... EPROM
M_SDA
36
60
37 M_SCC 59
51 28 23
24
30
73 TV VIDEO DECORD 74 /ADC/SCALE
MSD116L
29
68
69...
43
L OUT
Y
14
44 R OUT
Pb
11
Pr
16
75
76
B
1
G
3
R
4
HS
8
VS
7
L
70
R
71
43 TX 44 RX
64M SDRAM
64M SDRAM
64M SDRAM
DVD L DVD R
2M FLASH
15
16
2
1 L OUT
13
AUDIO AMP
AUDIO AMP
6
4580
7 R OUT 14
4580
24
23...
Circuit Diagrams - Page 11
...D9 SK34
R156 51k
R171 30k
+3.3VD
+
C45
CA15
0.1u
470uF/10V
22uF/10V
0.1u
C9
PANEL POWER AND CONTROL
12V/3A 5VA +3.3VD
R8
NC/1206
R9
0/1206
R10
NC/1206
R18 10K
ON_PANEL...
5VA
R19
R44
NC
10K
R25
R24
Q4
1K
1K
3904
Q5
3904
VCC-Panel
U3
1 2 3 4
S G S G
D D D D
8 7 6 5
IRF7304
+ CA48
C12
100uF/16V 0.1u
5VA
...
Circuit Diagrams - Page 13
...VDD12IH CLK_EXT_ADC
VSSIPH VDD33OPH OSC_XOUT
OSC_XIN VSSOH
VDD12T_ABB VSSBB_ABB FILTER VBB_ABB VSST_ABB
VDD12T_ABB
RESET_N
IN OUT ADJ
IN OUT ADJ
POWER FOR DEMODULATOR
7
4
4
U39 AMS1117-1.2V
U40 AMS1117-3.3V 5V8_DE/TU 5VA-DE
3
2
1
3
2
...2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
4
R401
330
TSCLK
RP20 RP21
7 5 31 75 31 86428642
330X4
TS0
TS1
TS0 TS1
TS2
TS3...
Circuit Diagrams - Page 15
... trace with signal
Keep spacing for L/R
Keep trace width(12mil+)
DVD-L
DVD-L
R88
10k
C93
R50
330p 12k
C43 560p
C42
2.2uF
B1-L
DVD-R
DVD-R
R170 10k
C122 R54 330p 12k
C50
2.2uF
B2-R
C48 ...
4
5
H11 PAD
NC2 32 OPEN2 31
BNF1 30 BOUT1 29
BNF2 28 BOUT2 27
OUT1 26 OUT2 25 LINE1 24 LINE2 23 GND 22
SDA 21 SCL 20 CAP2 19
C1 18 C2 17
LINE1/OUT1 LINE2/OUT2
R124 100
R117 100
C85 1800p R61...
Circuit Diagrams - Page 16
...12VA
3
MMBT3904
100uH
100uH
C
L65
L66
L67
Tuner_+30V
Tuner_+40V
3 CA49 100nF/50V
5
SOT 23
2.2uH
3.3uH
2.2uH
R373 47R
C289 47nF TUNER-CVBS ATV-Vin+
RA1 1K
2
5 CA50 +...E
F
G
H
H-15
H-16 A
B
C
D
E
F
G
H
TUNER SCHEMATIC DIAGRAM
8
(MAIN PCB)
8
U38
5V-IF
POWER FOR TUNER
7 6
22 23 24 25 26 27 28 29
GND GND GND GND GND GND GND GND
NC NC NC NC NC NC RF_AGC NC VT IF...
Circuit Diagrams - Page 17
... AV2-L-in AV1-CVBS AV2-CVBS AV1-SV1-Y AV1-SV1-C HPOUT-R HPOUT-L
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
CON16 CON30A
5VA VGA-TXD UPDATE2 VGA-RXD
AV1-SV1-Y
2
1
L6
0
C27
C28
NC
330p
R34
R35 75...
Circuit Diagrams - Page 18
MODULE - R85
47 C70 0.047u
PB-
DVD-YPbPr
SOY Y+ PB+ PR+
R78
NC C68
R83
R82
75
C Location near MST.IC
C79 2.2u
VGA/DVI-Lin
... R66 R67
EC3 47uF/10V EC4 47uF/10V EC5 47uF/10V
10k 10k
R70
10k
R108
10k
R181
10k
R182
10k
DVD-Y DVD-Pb/C DVD-Pr/Y
DVD-Y DVD-Pb/C DVD-Pr/Y
R81
R80
R79
75
5VAV R188 R183
OPTIONAL JUMPER WHEN NO
EXT. CLOSE TO
R105 NC/0 INPUT CONNECTOR
R91...
Circuit Diagrams - Page 20
...1
A
H-23
B
C
D
E
F
G
EXT-MODULE CON SCHEMATIC DIAGRAM
(MAIN PCB)
DISC_OUT
Q19 3904
DVD_RST STB-DVD
DVD-RMC
DVD_5V
DVD_DISC_IN DVD_MENU
DVD_RST STB_DVD
R336
10
DVD_DISC_IN
DVD_MENU DVD_5V
DVD-R DVD-L DVD-Pr/Y DVD-Pb/C DVD-Y
DVD-R DVD-L DVD-Pr/Y DVD-Pb/C DVD-Y
R340
10
DVD-SPDIF
1 2 3 4 5 6 7 8 9 10 11 12
J11 CON12
1 2 3 4 5 6 7 8 9 10 11 12 13
CON15 CON_13PIN
EXT-MODULE POWER...
Circuit Diagrams - Page 21
8 7 6 5 4 3 2 1
H-25
A
B
C
D
E
F
G
VADDIS & SDRAM FLASH SCHEMATIC DIAGRAM
(DECODER PCB)
While using BA5954
OPU Sony310 DL3 IAT510 THMSM507S
R106 30K 27K 33K 47K
HD65/HD62
27K
SPU3153
36K
502W
24K
Arima681
36K
R103 30K 20K 33K 34K 27K 33K 27K 24K
While using AM5888S
EMC usage
R106 51K R103 51K R107 22K R102 51K
FOCUS_S TRACK_S
SPDL_S SLED_S
FOCUS_S TRACK_S
SPDL_S SLED_S
...
Circuit Diagrams - Page 22
...
X4
+
10k
1N
100P
100N 100N
100N
C01
100N
HGL-LV6A C02
R84
N3
330P 470uF/10v
5
470uF/16v POWER ON
470uF/16v
10k R87 20K
3
R82
1
D7
R41 C41 C55
1 2 3 4
1 2 3 4
... 6 5
8 7 6 5
4V2IN VD1
4k7
601
5K6
AP1520
RB060-40
100N 100N
0.1uF
0.1uF 10uF/16v
5
VIDEO-POWER-SUPPER
2
R29
D26
4V2
1 IN
OUT 2
DSPVCC33
+12V
FB15
A+12V
A+12V 100
C21 + C336
VID12V
3 ADJ/GND...
Circuit Diagrams - Page 24
.../16V
+ C315 100uF/16V
XS001 24Pin OPU connector
C216 NC
GND-LD DVD-LD
NC HFM
MD CD-LD VR-DVD VR-CD
NC E
VCC VC(VREF)
GND/PD F B A
RF CD/DVD_SW
D C TT+ F+ F-
24 23 22 21 20 19 18 17 16 15 14 13 12 11 10... C9 470uF/16V
2.1V 1nF
RF_E
VC
RF_F RF_B RF_A RFP
RF_D RF_C
RFA5V
R204 3.3K CD_DVD
PDIC Control: DVD=LOW CD=HIGH
CD_DVD
26 GND 25 GND
C203 0.1uF
C14 + C314 C11 + C13
0.1uF
0.1uF 10uF/...
Circuit Diagrams - Page 26
...
8 Vcc
6 INPUT2-
5 INPUT2+
3
2.2nF 471
Q01C
104
R38
9013
C36
9013
390V
0
Q01B
R32A
R28B C06A
DTA124KA
471
27K
105
Q02
IC3
! A
B
C
D
E
F
G
H
PWM SCHEMATIC DIAGRAM
8
(POWER PCB)
8
R92 10K
R94 680
GPFC
7
R93
Q08
5.6K
9013
!
IC1
1 OUTPUT1
3 INPUTC2+35
103
C56 R57 R58 2.4K NC
471
2 INPUT14 GND
104
35V...
Circuit Diagrams - Page 29
20µs 200mV
18
20µs 200mV
19
20µs 200mV
20
20µs 500mV
21
10µs 2.0V
22
WAVEFORMS
ADC
5µs 2.0V
23
5µs 500mV
28
LVDS
10ms 100mV
24
5µs 500mV
29
JACK
1.0ms 1.0V
25
INTERFACE_HDMI IC
20µs 1.0V
30
1.0ms 1.0V
26
20µs 1....
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