Download - MC059A_B Training Manual
Page 73 of 107 LGE/ NTV
MCMC--059A (CIMA) CHASSIS059A (CIMA) CHASSIS
(14(14””~21~21”” Conventional/FLAT)Conventional/FLAT)
North-AmericaKorea
Japan
Philippines
Middle-America
South-America
CIMA I TRAINING MANUALCIMA I TRAINING MANUAL
Page 74 of 107 LGE/ NTV
CIMA I TRAINING MANUAL : BLOCK DIAGRAMSCIMA I TRAINING MANUAL : BLOCK DIAGRAMS
DV
D R
/L
Page 75 of 107 LGE/ NTV
54
32
1
TU101
SCL
SDA
IF
C101Z111
R23R21
C131
C130
R53
0
*
C51
C50
R516
R514
R56
1
R24
7
R105
L102
C111 C105
C115
Q101
R102
R103 R104
C104
R10
0
R101
< OPTION >
9V
ST-
5V
-1
-2 3
-
4-
IF IN
IF IN
GN
D
RF
AGC
64 63 62 61
-5
-6 7
-
8-
VID
EO
OU
T - - -
60 59 58 57
-9
-10 11
-
12R
OU
T
INT
VID
EO
-
EXT
VID
EO -
56 55 54 53
G O
UT
13
B O
UT
14 15-
16-
SVO
/FS
C CR - CB
52 51 50 49
-17
-18 19
-
20-
DVD
-Y - - -
48 47 46 45
-25
-26 27
SW2
28-
- - -
SW
1
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
12345 R53
1
C52
3
9V
L IN
V I
N
L O
UT
V O
UT
IC501 LA76931
R22
69V
RG
B
P902-1
R24
9
C246
L225
C22
9 J534
C72
6
J222
Q241
R711
ZD505
C527
R527R520
JA02FRONT AV
L216
C231
P902-1JA01
REAR AV
R505
R506R507
J704
MONO MODELS VIDEO SIGNAL FLOW (WITHOUT IC751)Explanation
1. IF signal from TU101 flow through to pin 63, 64 of IC501. The video detection circuit in IC501 will be detect the video signal from IF signal and then send it out by pin 60. The video out from pin 60 will be return to IC501 again by pin 56 and we’re can call this signal is “Internal Video”
2. External video is the signal from external equipment, such as VCD, or VCR. Rear A/V (JA01) and front A/V (JA02) is same line circuit but, JA02 has the internal automatic switch on/off. When you put the A/V pluck to JA02 and JA01 in same time. The IC501 will be receive the signal and flow through to pin 54 from JA02 only.
3. Internal signal and External signal will be joint together at Video switch circuit in IC501. When the user select the input signal (by press TV/AV button on the remote control or submenu on the set) and then the video switch circuit will be select the signal follow the user selected. The signal after selected will be send to video processing circuit and pin52 (video out for JA01)
4. After video processing circuit complete process, the signal R, G, B will be send out from pin 12, 13, 14 of IC501 to video amp circuit before sent to CPT.
Q901
L901
5
4
3
2
1
9
8
7
6
9V
B
G
R
Heater
180V
R902
C901D901
D902
R908
L902
L904
L903
R917
R920
R915
R91
6
C907C904
Q902
R912
R919
R92
2
R92
1
R90
5
R90
6
C902
R918
FR932R923
P901
Anode HV
Screen
Focus
SK901
CPT
CIMA I TRAINING MANUAL : MONO MODELSCIMA I TRAINING MANUAL : MONO MODELS
Page 76 of 107 LGE/ NTV
32 41 5 76
AMPPUMP-UP
THERMAL PROTECTION
60Vpp60Vpp60Vpp
V-IN
IC301 LA78040
24 V
VC
C
PU
MP
-UP
GN
D
V-O
UT
V-R
EF
O/P
S
TAG
E
V-O
UT
17
-18 19
-
20-
DV
D-Y
- - -
48 47 46 45
IC501
9V
C307 R302
D302C306
R313
R316
C302
R301
R311
R310
C310
C301
C31
4
R31
5
R308
C311C312
R307
R305
R309
R303 R304
V-D
Y
V-NECK
Vertical CircuitH-Out
21
-22
23-
24-
-
-
-
-
44
43
42
41
IC501R404
* C411 R418
Q401
R403
C404
T403HDT
C408R405
Q402C414(Cr)
FBTH-DY
C412 (Cs)
R406
R401B+ 110V
B+ 110V
3
1
i1(t1~t2)
i2(t2~t3)
i4(t4~t5)
i3(t3~t4)
Horizontal Circuit
TU101
SCL
SDA
IF
C101
Z111
R23
R21C131
C130
*
C51
C50
R516
R514
R105
L102
C111 C105
C115
Q101
R102
R103 R104
C104
R10
0
R101
< OPTION >
9V
ST-5V
SIF
OU
T1
-2 3
SIF
IN
4-
IF IN
IF IN
GN
D -
64 63 62 61
FM O
UT
5
AU
DIO
OU
T6 7
-
8-
- - - -
60 59 58 57
EX
T. A
UD
IO IN
9
-10 11
-
12-
- - - -
56 55 54 53
-13
-14 15
-
16-
- - - -
52 51 50 49
-17
-18 19
-
20-
- - - -
48 47 46 45
-25
-26 27
-
28-
- - - -
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
12345
L IN
L OUT
IC501 LA76931
Q501
JA02FRONT AV
JA01REAR AV
MONO MODELSAUDIO SIGNAL FLOW
(WITHOUT IC751)
9V
IC601 LA42071
32 41 5 76 8 9IN
R50
1
L501
C50
1
C50
3
J109
C54
3
C52
2
R50
3
R52
8
C603
R61
1
C60
4
R53
3
R51
7
R51
1
ZD50
6
L221
C215
R708
J705R706L218
C234C235
J539
C677
J720
C233C231
L217
Explanation1. IF signal from TU101 flow through to pin 63, 64 of IC501. The Sound detection circuit in IC501 will be detect the SIF signal from IF signal and then send it out by pin 1. The SIF from pin 1 will be return to IC501 again by pin 3. The sound detection circuit (2nd) will be detect the audio signal from SIF and send it out to sound switch circuit and for the JA01 by pin 5 of IC501. 2. External audio is the signal from external equipment, such as VCD, or VCR. Rear A/V (JA01) and front A/V (JA02) is same line circuit but, JA02 has the internal automatic switch on/off. When you put the A/V pluck to JA02 and JA01 in same time. The IC501 will be receive the signal and flow through to pin 54 from JA02 only.3. Internal signal and External signal will be joint together at sound switch circuit in IC501. When the user select the input signal and then the sound switch circuit will be select the signal follow the user selected. The signal after selected will be send to pin 6 for the audio power amplify circuit before send the to speaker.
Explanation1. The H drive output is open collector and active low, I.e. the H-out TR should conduct during the low period of output.2. Under normal operation condition the duty cycle of the output pulse is 50%.3. To ensure a smooth start/stop behavior of the horizontal deflection and protect the H-out TR, there are 3 different condition of H-drive output.① During switch-on.The horizontal output starts with
the double frequency(31KHz) and with duty of 75%(off),25%(on).② After about 50mSec of switch-on.The frequency is changed to normal value(15.625KHz) and duty cycle to 50%.③During switching-off. Also the frequency is switched to the double value and R.G.B drive is set to Max. and after 100mSec R.G.B is set to Min. and 50mSec later the H drive is switch-off.4. The H drive pulse from the LA76931 is amplified by the horizontal drive circuit,to get sufficient base drive current for the high voltage switching TR(Q402).
CIMA I TRAINING MANUAL : MONO MODELS &DEFLECTIONCIMA I TRAINING MANUAL : MONO MODELS &DEFLECTION
Page 77 of 107 LGE/ NTV
R53
0 R56
1
R24
7
L102
R10
0
9V
ST-
5V
-1
-2 3
-
4-
IF IN
IF IN
GN
D
RF
AG
C
64 63 62 61
-5
-6 7
-
8-
VID
EO
OU
T - - -
60 59 58 57
-9
-10 11
-
12R
OU
T
INT
VID
EO -
EX
T VI
DE
O -
56 55 54 53
G O
UT
13
B O
UT
14 15-
16-
SV
O/F
SC CR - CB
52 51 50 49
-17
-18 19
-
20-
DVD
-Y - - -
48 47 46 45
-25
-26 27
SW
2
28-
- - -
SW
1
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
R53
1
C52
3
9V
R1
IN
L1 I
N
V1
IN
R O
UTL
OU
TV O
UT
-8
VIN
29 10
-
11M
OD
EA
- -
MO
DE
B
VIN
3
15 14 13 12
-4
-5 6
-
7VI
N1
- - -
VID
EO
OU
T
19 18 17 16
R22
6-
1
-2 3
-
4-
- - - -
22 21 20 19
R24
9
C22
9
C72
6
J222
J536 J5
25C
293
C21
2
C21
1
C21
0
L212
L211
L213
R25
1
R25
2
R25
0
R91
6
R92
2
R92
1
R90
5
R90
6
Ext
. Vid
eo
CIMA I TRAINING MANUAL : AV / RFCIMA I TRAINING MANUAL : AV / RF--ST. MODELSST. MODELS
Page 78 of 107 LGE/ NTV
L102
R10
0
9V
ST-5
V
SIF
OU
T1
-2 3
SIF
IN
4-
IF IN
IF IN
GN
D -
64 63 62 61
-5
AUD
IO O
UT
6 7-
8-
- - - -
60 59 58 57
-9
-10 11
-
12-
- - - -
56 55 54 53
-25
-26 27
SW2
28-
- - -
SW
1
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
R1
IN
L1 I
N
R O
UT
L O
UT
-8
VIN
29 10
-
11M
OD
EA
- -
MO
DEB -
15 14 13 12
-4
R IN
25 6
R IN
3
7-
-
L O
UT
R O
UT -
19 18 17 16
L IN
11
L IN
22 3
L IN
3
4R
IN1
DV
D L
IN
DVD
R IN - -
22 21 20 19
-12
-1314
R -
OU
T
15-
--L -O
UT
-
25242322-
15
-1617
-
18-
--SCL
SDA
22212019
-4
MN
T -R
56-
7-
-MN
T -L
--
33323130
-1
INPU
TA
(R)
23R
-IN
4-
-INP
UT
A (L
)
L -I
N
-
36353433
R50
1
L501
C50
1
C50
3
5V CLO
CK
DA
TA IDA
UD
IOV
IDE
O
1 2 3 4 5 6 7 8
HIC
291
R60
8
R60
5
C60
9
R61
1 C60
4R
612
R60
6
C21
3
C23
4
L217
C67
7
C76
1
C75
8
C75
7
C76
0
L223
C22
5
C24
2C82
1C82
0
R76
0
C70
4
C70
2
C72
9
C70
1
R50
3
C76
2
R70
4
R70
1
J503
J521
C75
9
IN2
IN1
Ext.
Vid
eo
CIMA I TRAINING MANUAL : AVCIMA I TRAINING MANUAL : AV--ST. MODELSST. MODELS
Page 79 of 107 LGE/ NTV
Explanation1. SIF just send out from pin 1 of IC501 and through to pin 47 of IC661. Also the external audio from external equipment just send out from IC751 to IC661.IC661 will be detect FM, AM, A2 and NICAM signal from SIF signal by Multi-Standard Digital Stereo Demodulator circuit .2. When user select external signal, the internal audio (from SIF) cannot send out from pin 24, 25 of IC661 because, the IC501 has order by I2C signal and not permit the audio from SIF signal to send out.
3. After selected the audio signal, the audio signal will be separate 2 ways. 3.1 Send out to pin 30, 31 of IC661 for JA01 (audio out L/R) 3.2 Send to stereo audio processing circuit in IC661 for adjust the quality of sound, such as Equalizer, Balance, Turbo sound, SSM etc.
4. IC661 pin 24, 25 just send the audio signal out to IC601 for amplify before sent the final audio signal to speaker.
TU101
SCL
SDA
IF
C101
Z111
R23R21
C131
C130
*
C51
C50
R516
R514
R105
L102
C111 C105
C115
Q101
R102
R103 R104
C104
R10
0
R101
< OPTION >
9V
ST-5
V
12345
R1
IN
L1 I
N
R O
UT
L O
UT
-8
VIN
29 10
-
11M
OD
EA
- -
MO
DE
B -
15 14 13 12
-4
R IN
25 6
R IN
3
7-
-
L O
UT
R O
UT -
19 18 17 16
L IN
11
L IN
22 3
L IN
3
4R
IN1
DV
D L
IN
DV
D R
IN - -
22 21 20 19
J511
IC751 LA7958
JA02
JA01DVD
JA01AV1
V2 L2 R2
R50
1
L501
C50
1
C50
3
5V CLO
CK
DA
TA IDAU
DIO
VID
EO
1 2 3 4 5 6 7 8
HIC
291
C610 C603
R61
6
R60
5
C60
9
R61
1
C60
4
R61
2
C235
C21
3
C23
4
C233L218
L217
L217
C67
7
C677
C76
1
C731
R705
C75
8
C732
R708
C75
7
R707
C76
0
R567
L221
L222
L223
L224
C226 C221 C215 C222C214
C22
5
C24
3
C24
2C82
1
C287 C286
L281
L280
C82
0
R76
0
R761
C704
C702
C76
2
C741C740
R70
4
R70
1
J503
J521
C75
9
-5
-6 7
SC
L
8S
DA
-
SIF
IN - -
48 47 46 45
-13
-14 15
-
16-
AV
-R
AV
-L - -
40 39 38 37
-23
-24 25
SP
K -
L
26-
- - - -
30 29 28 27
-21
-22 23
-
24S
PK
-R
-
MN
T -L
MN
T -R -
32 31 30 29
IC661 MSP3425G
52 51
- -
1
-2
-
C68
6
SIF
OU
T1
-2 3
SIF
IN
4-
IF IN
IF IN
GN
D -
64 63 62 61
-5
-6 7
-
8-
- - - -
60 59 58 57
-9
-10 11
-
12-
- - - -
56 55 54 53
-25
-26 27
SW
2
28-
- - -
SW
1
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
IC501 LA76931
9V
Q672 R665 R666
C668 C667
Q671
RF ST. MODELSAUDIO SIGNAL FLOW
IC601 LA42072
10 11 12 13987654321
IN2
IN1
MODE A(SW1)
MODE B(SW2)
STATUS
001
101
AV2DVD L/RGAME
1 0 AV1
Table 1
Ext
. Vid
eo
CIMA I TRAINING MANUAL : RFCIMA I TRAINING MANUAL : RF--ST. MODELSST. MODELS
Page 80 of 107 LGE/ NTV
Audio Power Amplifier(Mono models)
Explanation
1. IC601 (LA42071) is mono audio amplifier. The audio signal from IC501 just flow to pin4 of IC601.And pin 6 of IC601 just receive voltage high abount 2V from IC501 when sound mute and 0V when normal mode.
2. In the case of mono models with 2 speaker. The J616, P602 and speaker channel right will be adding on the chassis also.
Audio Power Amplifier(Stereo models)
Explanation
1. IC601 (LA42072) is stereo audio amplifier. The audio signal from IC701 or IC661 just flow to pin4 and pin 2 of IC601. And pin 6 of IC601 just receive voltage high abount 2V from IC501 when sound mute and 0V when normal mode.
2. Q671, Q672 is buffer for the audio signal from IC661, C608 is pop noise protection when you turn off the main switch power.
IC501
1
9
8
7
5
6
4
3
ST-5V
S - VCC
36
C201
FB201
14
13
SPK L
SPK R
L+
R-
L-
R+
ER
-OE
R-I
EL-
IEL
-O
P601
P602
12
11
2
R20
5R
206
J616
C606
R603
R604
C612
IC601LA42072
10
MUTE
C611
VCC
STANDBY
R-IN
PRE-GND
POWER GND
L-IN
RIPPLE FILTER
C603
C608
R61
1
C60
4
R612
R614
D601R618
C602 C627 C621 C601
C613
R602
R601
C614
MU
TE
C610
R605C609
R616
9V
Q672
R665
R666
C668
C667
Q671
C669
IC661RF-ST
25
24
IC701AV-ST
23
24
R612
R712
R608
IC501
1
9
85
6
4
3
ST-5V
36
6
C201
FB201
14
13
SPK L
SPK R
L+
R-
L-
R+
<Mono’s Option>
ER
-OE
R-I
EL-I
EL-O
P601
P602
12
11
2
R20
5R
206
J613
J610
J616
C606
R603
R604
C612
IC601 LA42071
10
MUTE
C611
VCC
STANDBY
R-IN
PRE-GND
POWER GND
L-IN
RIPPLE FILTER
C603
C608
R611C604
R528
R503
R614
D601R618
S - VCCC602 C627 C621 C601
7
C543C604R503R528R611T803
ITEM 7 W. 3 W.
333103
-3.9K4.3K43L
333222
-4.3K1.8K43L
5 W.
333 333103 822
- -5.1K 5.1K2.0K 1.8K43K 43K
CIMA I TRAINING MANUAL : AUDIO POWER AMPLIFIERCIMA I TRAINING MANUAL : AUDIO POWER AMPLIFIER
Page 81 of 107 LGE/ NTV
C110
SCL
SDA
AGC
C131
C130
C51
C50
R514
*C102I2C ADJ.
P101
R23 R21
ST-5
V
AB
NO
RM
AL25
IR26 27
SW
2
28G
AM
E D
ATA
-
KE
Y IN
CD
S
SW
1
40 39 38 37
PO
WER
29
DE
GA
US
S30 31
I2 C D
ATA
32I2 C
CLO
CK
MU
TE - - -
36 35 34 33
-21
-22 23
-
24G
AM
E C
LOC
K
- - - -
44 43 42 41
GA
ME
ID1
-2 3
-
4-
- - -
RF
AGC
64 63 62 61
*Q102
C109
-1
-2
3-
4-
-
-
SCL
SDA
64
63
62
61
-5
-6
7SCL
8SDA
-
-
-
-
48
47
46
45
-15
-16
17-
18-
-
-
SCL
SDA
22
21
20
19
IC02
IC701
IC661
MUTE
9V
J521
J503
R70
1 R70
4
J706 R
707
P01AEYE MODULE
C608
D60
1
Stereo models
R618
C605
R607
Q601
R617R615
C607
D604D602
C520J509
C19
J542
CH+ CH - VOL+ VOL - OK MENU
R20 R19 R18 R17 R16
PA01Pre-amp
2 3
ST-5
V
R60
J511
-8
-9
10-
11MODEA
-
-
MODEB
-
15
14
13
12
IC751
ST-5V
CLO
CK
DAT
AID
5VAUD
IO
VID
EO
HIC29112345678
4 3 2 1
9V In
9V O
ut
IC804
2
4
3
B+ 1
10V
OCP Circuit
V-Nect Circuit
X-Ray Circuit
ST-5V
1
ST-5V
IC80
2
R513
J523
R566
R56
5
L3
D80
5
ZD80
4 R1R72
LD11
Q10
R58
J550
R803
R88
4
J811
R835
R831 R832 ZD85
1
Q801
Q813
D84
7
PL801
Q845
R82
6R
825
J541J24
R11
J522
J502
J540
Q16
IC601
10 11 12 13987654321
321
R66
3 2 1
IC805
R609
Mute = 1.9 VNor. = 0 V
RF Stereo models (Option)
Stand by modeIC501 pin29 = 0V, IC804, Q813 and Q10 cut off, ID high, Q801 on, IC2 high, IC high, IFB high and then Power supply circuit is stand-by mode.Abnormal Circuit ProtectionIn that case of electrical circuit is abnormal operating. The OCP, V-Nect of X-Ray circuit will be operating too. And then Q16 on, pin 25 of IC501 = 0V, the set become to stand-by mode.B+ Over VoltageIC805 take high bias voltage. And then IC1 high, IC high, IFB high too. And then Power supply circuit is stand-by mode.
Nor. = 1.7 V ST-BY = 1.8V
CH+ = 0.0V ;CH- = 0.5V;MENU = 2.0V;
OK = 2.5VVOL- = 3.0VVOL+ = 3.5V
Nor. = 4.7 V ST-BY = 0.0V
Nor. = 4.7 V ST-BY = 0.0V
IFB
IC
IC1
IC2
IR
ID
CIMA I TRAINING MANUAL : MICROCONTROLLERCIMA I TRAINING MANUAL : MICROCONTROLLER
Page 82 of 107 LGE/ NTV
D84
7
43
R83
5
ZD85
1
R41
3C
413
L402
L401
GNDO
ver V
olta
gePr
otec
tion
CIMA I TRAINING MANUAL : POWER SUPPLYCIMA I TRAINING MANUAL : POWER SUPPLY
Page 83 of 107 LGE/ NTV
T1(St-by)
T2(Operating)
Switch Off
Switch Off
Switch Off
Switch Off
T1(St-by)
T2(Operating)
Iin1
Iin2
IFB
V1
V2
V3
V4
Power supply Normal mode operatingNote :I1 = Starting current (Voltage drop on pin4 of IC801)I2 = Main current (Source), (Voltage drop on pin4 of IC801)IFB = Feed back current (Voltage drop on pin6 of IC801)V1 = Main voltage (B+ on pin 3 of T402)V2 = Stand-by 5V (on pin 25 of IC501)V3 = Supply 9V on collector of Q301V4 = Pump-Up voltage on pin 3 of IC301
1) Turn on the switch power of the set and then Iin1 will be maximum high (Voltage drop on pin4 of IC801 = 18.4V) for a moment. In this time V1 ≈ 115V, V2 ≈ 5V (5V St-By operate), V3 ≈ 0.5V, V4 = 0V, IFB ≈ 1.7V and pin29 (power) of IC501 = 0V. And then IC801 will be operating to stand-by mode and still for about 4.12s (T1). Also the voltage drop on pin4 of IC801 at T1 = 11.3V
2) After time of T1 finished, pin29 (power) of IC501 active = 5V, Q813 operate, IC lower, IFB lower too. In this time IC801 is operate mode, T803 has induce from pin14 to pin1, and then Iin2 flow through D801 to pin4 of IC801. So the voltage drop on pin4 of IC801 ≈ 16.1V (T2) until the switch power off (unplug).
At the first time of pin29 (power) of IC501 active = 5V, IC804 supplier the 9V (V3) to corrector of Q301, C308 coupling the V3 to ground for a moment, after that V3 is continuously increasing, but in that time V4 continue immediately high (H-output circuit operating), and then Q301 operate, V3 pass to ground (0V), Q16 cannot operate. The set to be continuously operating.
V4
CIMA I TRAINING MANUAL : POWER SUPPLYCIMA I TRAINING MANUAL : POWER SUPPLY
Page 84 of 107 LGE/ NTV
Power supply Abnormal mode operatingNote :I1 = Starting current (Voltage drop on pin4 of IC801)I2 = Main current (Source), (Voltage drop on pin4 of IC801)IFB = Feed back current (Voltage drop on pin6 of IC801)V1 = Main voltage (B+ on pin 3 of T402)V2 = Stand-by 5V (on pin 25 of IC501)V3 = Supply 9V on collector of Q301V4 = Pump-Up voltage on pin 3 of IC301
1) Turn on the switch power of the set and then Iin1 will be maximum high (Voltage drop on pin4 of IC801 = 18.4V) for a moment. In this time V1 ≈ 115V, V2 ≈ 5V (5V St-By operate), V3 ≈ 0.5V, V4 = 0V, IFB ≈ 1.7V and pin29 (power) of IC501 = 0V. And then IC801 will be operating to stand-by mode and still for about 4.12s (T1). Also the voltage drop on pin4 of IC801 at T1 = 11.3V
2) After time of T1 finished, pin29 (power) of IC501 active = 5V, Q813 operate, IC lower, IFB lower too. In this time IC801 is operate mode, T803 has induce from pin14 to pin1, and then Iin2 flow through D801 to pin4 of IC801. So the voltage drop on pin4 of IC801 ≈ 16.1V (T2).
At the first time of pin29 (power) of IC501 active = 5V, IC804 supplier the 9V (V3) to corrector of Q301, C308 coupling the V3 to ground for a moment, after that V3 is continuously increasing.
3) In that case of Open circuit (H-output circuit cannot operating), V4 only high a moment and then V4 = 0V. And Q301 cannot operate, V3 increasing ≈ 1.5V (Max = 3.4V), Q16 operate, V2=0V and then the set return to st-by mode again.
4) In that case of Short circuit (Over current flow). The voltage drop on FR403 high, and then Q403 operate, IL2flow, Q16 operate, V2=0V and then the set return to st-by mode again.
T1(St-by)
T2(Operating)
T3(St-by)
Switch Off
V1
V2
V3
V4
V4
Iin1
Iin2
IFB
Switch Off
Switch Off
Switch Off
CIMA I TRAINING MANUAL : POWER SUPPLYCIMA I TRAINING MANUAL : POWER SUPPLY
Page 85 of 107 LGE/ NTV
MC-059B (CIMA II) PAL CHASSIS
(14”~21” Conventional/FLAT)
MCMC--059B (CIMA II) PAL CHASSIS059B (CIMA II) PAL CHASSIS
(14(14””~21~21”” Conventional/FLAT)Conventional/FLAT)
Contain :
Mono model circuit
AV Stereo Models circuit
RF Stereo Models CircuitPower amplifier Circuit
Microcontroller Circuit
Power supply CircuitWave form
CIMA II TRAINING MANUALCIMA II TRAINING MANUAL
Page 86 of 107 LGE/ NTV
DV
D R
/L
CIMA II TRAINING MANUAL : BLOCK DIAGRAMSCIMA II TRAINING MANUAL : BLOCK DIAGRAMS
Page 87 of 107 LGE/ NTV
R53
0R10
5
L102
C11
1
C10
5
R10
2R
103
R11
2
C10
4
R12
1
-1
-2 3
-
4-
IF IN
IF IN
GN
D
RF
AGC
64 63 62 61
-5
-6 7
-
8-
VID
EO
OU
T - - -
60 59 58 57
-9
-10 11
-
12R
OU
T
INT
VID
EO -
EX
T V
IDE
O -
56 55 54 53
G O
UT
13
B O
UT
14 15-
16-
SV
O/F
SC CR - CB
52 51 50 49
-17
-18 19
-
20-
DV
D-Y - - -
48 47 46 45
-25
-26 27
SW
2
28G
ame
Dat
aP
AL/
NTS
C
- - -
SW
1 / Q
-S
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
R53
1
C52
9
9V
C10
8
ZD10
2
V IN
V O
UT
C11
6
R10
4
D11
1R
111
R11
3
J111
R91
6
R92
2
R92
1
R90
5
R90
6
CIMA II TRAINING MANUAL : MONO MODELSCIMA II TRAINING MANUAL : MONO MODELS
Page 88 of 107 LGE/ NTV
32 41 5 76
AMPPUMP-UP
THERMAL PROTECTION
V-IN
IC301 LA78040
24 V
VC
C
PU
MP
-UP
GN
D
V-O
UT
V-R
EF
O/P
S
TAG
E
V-O
UT
17
-18 19
-
20-
DV
D-Y
- - -
48 47 46 45
IC501
9V
C307 R302
D302C306
R313
R316
C302
R301
R311
R310
C310
C301
C31
4 R31
5
R308
C311C312
R307
R305
R309
R303 R304
V-D
Y
V-NECK
Vertical CircuitH-Out
21
-22
23-
24-
-
-
-
-
44
43
42
41
IC501R404
* C411 R418
Q401
R403
C404
T403HDT
C408R405
Q402C414(Cr)
FBT
H-DY
C412 (Cs)
R406
R401B+ 110V
B+ 110V
3
1
i1(t1~t2)
i2(t2~t3)
i4(t4~t5)
i3(t3~t4)
Horizontal Circuit
SIF
OU
T1
-2 3
SIF
IN
4-
IF IN
IF IN
GN
D -
64 63 62 61
FM O
UT
5
AU
DIO
OU
T6 7
-
8-
- - - -
60 59 58 57
EX
T. A
UD
IO IN
9
-10 11
-
12-
- - - -
56 55 54 53
-13
-14 15
-
16-
- - - -
52 51 50 49
-17
-18 19
-
20-
- - - -
48 47 46 45
-25
-26 27
-
28G
ame
Dat
aP
AL/
NTS
C
- - - -
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
L IN
L OUT
IC501 LA76931
Q501
JA02FRONT AV
JA01REAR AV
MONO MODELS AUDIO SIGNAL FLOW (WITHOUT IC751)
9VR50
1
L501
C501 C503
J109
C54
3
R52
8
C603
R61
1
C60
4
R53
3
L221
C215
R708
J705R706L218
C235
C677
J539C233
L217 Explanation1. IF signal from TU101 flow through to pin 63, 64 of IC501. The Sound detection circuit in IC501 will be detect the SIF signal from IF signal and then send it out by pin 1. The SIF from pin 1 will be return to IC501 again by pin 3. The sound detection circuit (2nd) will be detect the audio signal from SIF and send it out to sound switch circuit and for the JA01 by pin 5 of IC501. 2. External audio is the signal from external equipment, such as VCD, or VCR. Rear A/V (JA01) and front A/V (JA02) is same line circuit but, JA02 has the internal automatic switch on/off. When you put the A/V pluck to JA02 and JA01 in same time. The IC501 will be receive the signal and flow through to pin 9 from JA02 only.3. Internal signal and External signal will be joint together at sound switch circuit in IC501. When the user select the input signal and then the sound switch circuit will be select the signal follow the user selected. The signal after selected will be send to pin 6 for the audio power amplify circuit before send the to speaker.
Explanation1. The H drive output is open collector and active low, I.e. the H-out TR should conduct during the low period of output.2. Under normal operation condition the duty cycle of the output pulse is 50%.3. To ensure a smooth start/stop behavior of the horizontal deflection and protect the H-out TR, there are 3 different condition of H-drive output.① During switch-on.The horizontal output starts with
the double frequency(31KHz) and with duty of 75%(off),25%(on).② After about 50mSec of switch-on.The frequency is changed to normal value(15.625KHz) and duty cycle to 50%.③During switching-off. Also the frequency is switched to the double value and R.G.B drive is set to Max. and after 100mSec R.G.B is set to Min. and 50mSec later the H drive is switch-off.4. The H drive pulse from the LA76931 is amplified by the horizontal drive circuit,to get sufficient base drive current for the high voltage switching TR(Q402).
TU101C101
R10
5
L102
C11
1
C10
5
C115
Q101
R10
2R
103
R11
2
C10
4
R12
1
R1019V
IF
NC
30V
LNA
5V
SDA
SCL
5V
CS
NC
AGC
R110
C103
B+
C10
8
ZD10
2 R132 J5079V
J106
Q101
R152
C109
C110
R153 J506 J511Q-Search
R154
R1085V
R109
J152RF-AGC
1 2 3 4 5
R10
4
D11
1
5V
R11
1R
113
J111
Q111PAL NTSC
I2C Data
I2C Clock
J112 J3
A IN on P205(to Side AV)
A Out on P205(from Side AV)
R511
R502
C504
J101
C508
J114 IC601 LA42071
32 41 5 76 8 9IN
SPK
10 11 12 13
J613
J616
J610
P602
TP11
TP12
TP13
TP14
TP15
TP16
CIMA II TRAINING MANUAL : MONO MODELS & DEFLECTIONCIMA II TRAINING MANUAL : MONO MODELS & DEFLECTION
Page 89 of 107 LGE/ NTV
VC
C8
VIN
29 10
-
11M
OD
EA
- -
MO
DE
B
VIN
3
15 14 13 12
-4
-5 6
-
7V
IN1
- - -
VID
EO
OU
T
19 18 17 16
R22
6
-1
-2 3
-
4-
- - - -
22 21 20 19
5V
CLOCKDATAIDAUDIOVIDEO
12
3456
78
L225
J534
C76
3
R76
1J5
11
IC751 LA7958
C76
5R
711
ZD505
C527 R527
R536 J553
C295
J525
C29
3 HIC291
R25
1
R25
2
R25
0
AV / RF ST. MODELS VIDEO SIGNAL FLOW (WITH IC751)R
760
Explanation
1. IF signal from TU101 flow through to pin 63, 64 of IC501. The video detection circuit in IC501 will be detect the video signal from IF signal and then send it out by pin 60. The video out from pin 60 will be return to IC501 again by pin 56 and we’re can call this signal is “Internal Video” 2. IC751 is service switch for the video/audio signal from the external equipment. All of the external signal will be flow to IC751 but, only one signal from external equipment can be out from IC751.IC751 just receive the command order form IC501 by mode A and mode B (pin 11, 13 of IC751). When the user select the input signal (by press TV/AV button on the remote control or submenu on the set) and then the video switch circuit will be select the signal follow the user selected. The signal after selected will be send to pin 54 of IC501 (external video input).3. DVD Y, Pb, Pr just flow to IC501 at pin 48, 49, 51 directly.4. The next step of video processing it’s just like video processing in mono model step 3 and 45. The command order from IC501 to IC751 (mode A & mode B) just like table 1 data.
V Out
JA02 AV2
JA01 AV1
TU101C101
R23R21
C131
C130
R53
0
C51
C50
R516
R514
R561
R10
5
L102
C11
1
C10
5
C115
Q101
R10
2R
103
R11
2
C10
4
R12
1
R101
ST-5V
-1
-2 3
-
4-
IF IN
IF IN
GN
D
RF
AG
C
64 63 62 61
-5
-6 7
-
8-
VID
EO
OU
T - - -
60 59 58 57
-9
-10 11
-
12R
OU
T
INT
VID
EO -
EX
T V
IDE
O -
56 55 54 53
G O
UT
13
B O
UT
14 15-
16-
SV
O/F
SC CR - CB
52 51 50 49
-17
-18 19
-
20-
DV
D-Y - - -
48 47 46 45
-25
-26 27
SW
2
28G
ame
Dat
aP
AL/
NTS
C
- - -
SW
1 / Q
-S
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
R53
1
C52
3IC501 LA76931
P902-1
Q241
P902-1 R505
R506
R507
9V
IF
NC
30V
LNA
5V
SDA
SCL
5V
CS
NC
AGC
R110
C103
B+
C10
8
ZD10
2 R132 J5079V
J106
Q101
R152
C109
C110R153 J506 J511
Q-Search
R154
R1085V
R109
J152RF-AGC
5
4
3
2
1
9V
R
G
B
Z111
C11
61 2 3 4 5
R10
4
D11
1
5V
R11
1R
113
J111
J112 J3
Q111PAL NTSC
V1 In
L216
R712J5
36
C24
6
9VR
247
R24
9
R562
R563
R564
C210
C211
C212
L213
L211L212
MODE A
(SW1)
MODE B
(SW2)
STATUS
011
101
AV2DVD L/RGAME
1 0 AV1
Table 1
Ext.
Vide
o
Int. Video RF signal Video Processing
DVD-Y
Video SW
Anode HV
Q901
L901
54321
9876
9V
B
G
R
Heater
180V
R902
C901D901
D902
R908
L902
L904
L903
R917
R920
R915
R91
6
C907C904
Q902
R912
R919
R92
2
R92
1
R90
5
R90
6
C902
R918
FR932 R923
P901
Screen
Focus
SK901
CPT
Q903
C53
7
C53
9
CIMA II TRAINING MANUAL : AV / RFCIMA II TRAINING MANUAL : AV / RF--ST. MODELSST. MODELS
Page 90 of 107 LGE/ NTV
-8
VIN
29 10
-
11M
OD
EA
- -
MO
DE
B -
15 14 13 12
-4
R IN
25 6
GM
-A
7-
-
L O
UT
R O
UT -
19 18 17 16
L IN
11
L IN
22 3
GM
-A
4R
IN1
DV
D L
IN
DV
D R
IN - -
22 21 20 19
-12
-1314
R -
OU
T
15-
--L -O
UT
-
25242322-
15
-1617
-
18-
--SC
L
SD
A
22212019
-4
MN
T -R
56-
7-
-MN
T -L
--
33323130
-1
INP
UT
A (R
)23
R -
IN
4-
-INP
UT
A (L
)
L -I
N
-
36353433
R60
5
C60
9
R61
1
C60
4
C76
1
C75
8
C75
7
C76
0
L223
R76
0
C70
4
C70
2
C72
9
C70
1
R50
3
C76
2
R70
4
R70
1
J503
J521
C75
9
SIF
OU
T1
-2 3
SIF
IN
4-
IF IN
IF IN
GN
D -
64 63 62 61
-5
AU
DIO
OU
T6 7
-
8-
- - - -
60 59 58 57
-9
-10 11
-
12-
- - - -
56 55 54 53
-25
-26 27
SW
2
28G
ame
Dat
aP
AL/
NTS
C
- - -
SW
1 / Q
-S
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
R50
1
L501
C23
4
C23
3
R11
2
C11
6
D11
1R
111
R11
3
J111
R10
5
L102
C11
1
C10
5
R10
2R
103
C10
4
R12
1
C10
8
ZD10
2
R10
4
HIC
291
Ext
. Vid
eo
J720
C24
8J7
21
IC60
1 L
A42
152
CIMA II TRAINING MANUAL : AVCIMA II TRAINING MANUAL : AV--ST. MODELSST. MODELS
Page 91 of 107 LGE/ NTV
RFRF--ST. ModelsST. Models
-8
VIN
29 10
-
11M
OD
EA
- -
MO
DE
B -
15 14 13 12
-4
R IN
25 6
GM
-A
7-
-
L O
UT
R O
UT -
19 18 17 16
L IN
11
L IN
22 3
GM
-A
4R
IN1
DV
D L
IN
DV
D R
IN - -
22 21 20 19
C76
1
C75
8
C75
7
C76
0
R76
0
C76
2
C65
9 C66
3
R70
4
R70
1
J503
J521
C75
9
SIF
OU
T1
-2 3
SIF
IN
4-
IF IN
IF IN
GN
D -
64 63 62 61
-5
-6 7
-
8-
- - - -
60 59 58 57
-9
-10 11
-
12-
- - - -
56 55 54 53
-25
-26 27
SW
2
28G
ame
Dat
aP
AL/
NTS
C
- - -
SW
1 / Q
-S
40 39 38 37
-29
-30 31
I2 C D
ATA
32I2 C
CLO
CK
- - - -
36 35 34 33
R50
1
L501
R11
2
C11
6
D11
15V
R11
1R
113
J111
R10
5
L102
C11
1
C10
5
R10
2R
103
C10
4
R12
1
C10
8
ZD10
2
R10
4
HIC
291
Ext
. Vid
eo
J720
C24
8J6
65
IC60
1 L
A42
152
S IF
1
-23
-
4-
----
56555453
-5
-67
L -O
ut
8R
-O
ut
----
52515049
-9
-1011
L -I
N
12R
-IN
----
48474645
-21
-2223
-
24-
-SD
A
SC
L
-
36353433
-25
W O
ut L
2627W
Out
R
28-
----
32313029
R55
6
J630
J538
J631
C68
6
J115
J668
J642
J641
J673
J672
J706
J707
Q-S
earc
h
C70
4
C60
9R
616
R60
5R
611
C60
4
PAL
NTS
C
CIMA II TRAINING MANUAL : RFCIMA II TRAINING MANUAL : RF--ST. MODELSST. MODELS
Page 92 of 107 LGE/ NTV
ER
-O
ER
-I
EL-
I
EL-
O
R21
5C
239
MU
TE
ER
-O
ER
-IE
L-I
EL-
O
R23
5R
236 C
236L2
31C
238
SW
SW
C23
7 L230
C23
9
SW
SW
C23
8R
216
J616
CIMA II TRAINING MANUAL : AUDIO POWER AMPLIFIERCIMA II TRAINING MANUAL : AUDIO POWER AMPLIFIER
Page 93 of 107 LGE/ NTV
P10
1
ST-5
V
ABN
OR
MAL
25
IR26 27
SW
2
28G
AME
DA
TA
-
KEY
IN
CD
S
SW
1
40 39 38 37
PO
WE
R29
DEG
AU
SS
30 31I2 C
DAT
A
32I2 C
CLO
CK
MU
TE - - -
36 35 34 33
-21
-22 23
-
24G
AME
CLO
CK
- - - -
44 43 42 41
GAM
E ID
1
-2 3
-
4-
- - -
RF
AGC
64 63 62 61
J521
J503
R70
1 R70
4
J706 R
707
D60
1
ST-
5V
J511
CLO
CK
DAT
AID
5VAU
DIO
VID
EO
9V O
utB+
110
V
IC80
2
R56
5
D80
5
ZD80
4
R88
4
ZD85
1
D84
7
R82
6R
825
CIMA II TRAINING MANUAL : MICROCONTROLLERCIMA II TRAINING MANUAL : MICROCONTROLLER
Page 94 of 107 LGE/ NTV
D84
7
43
R83
5
ZD85
1
R41
3C
413
L402
L401
GNDO
ver V
olta
gePr
otec
tion
CIMA II TRAINING MANUAL : POWER SUPPLYCIMA II TRAINING MANUAL : POWER SUPPLY
Page 95 of 107 LGE/ NTV
T1(St-by)
T2(Operating)
Switch Off
Switch Off
Switch Off
Switch Off
T1(St-by)
T2(Operating)
Iin1
Iin2
IFB
V1
V2
V3
V4
Power supply Normal mode operatingNote :I1 = Starting current (Voltage drop on pin4 of IC801)I2 = Main current (Source), (Voltage drop on pin4 of IC801)IFB = Feed back current (Voltage drop on pin6 of IC801)V1 = Main voltage (B+ on pin 3 of T402)V2 = Stand-by 5V (on pin 25 of IC501)V3 = Supply 9V on collector of Q301V4 = Pump-Up voltage on pin 3 of IC301
1) Turn on the switch power of the set and then Iin1 will be maximum high (Voltage drop on pin4 of IC801 = 18.4V) for a moment. In this time V1 ≈ 115V, V2 ≈ 5V (5V St-By operate), V3 ≈ 0.5V, V4 = 0V, IFB ≈ 1.7V and pin29 (power) of IC501 = 0V. And then IC801 will be operating to stand-by mode and still for about 4.12s (T1). Also the voltage drop on pin4 of IC801 at T1 = 11.3V
2) After time of T1 finished, pin29 (power) of IC501 active = 5V, Q813 operate, IC lower, IFB lower too. In this time IC801 is operate mode, T803 has induce from pin14 to pin1, and then Iin2 flow through D801 to pin4 of IC801. So the voltage drop on pin4 of IC801 ≈ 16.1V (T2) until the switch power off (unplug).
At the first time of pin29 (power) of IC501 active = 5V, IC804 supplier the 9V (V3) to corrector of Q301, C308 coupling the V3 to ground for a moment, after that V3 is continuously increasing, but in that time V4 continue immediately high (H-output circuit operating), and then Q301 operate, V3 pass to ground (0V), Q16 cannot operate. The set to be continuously operating.
V4
CIMA II TRAINING MANUAL : POWER SUPPLYCIMA II TRAINING MANUAL : POWER SUPPLY
Page 96 of 107 LGE/ NTV
Power supply Abnormal mode operatingNote :I1 = Starting current (Voltage drop on pin4 of IC801)I2 = Main current (Source), (Voltage drop on pin4 of IC801)IFB = Feed back current (Voltage drop on pin6 of IC801)V1 = Main voltage (B+ on pin 3 of T402)V2 = Stand-by 5V (on pin 25 of IC501)V3 = Supply 9V on collector of Q301V4 = Pump-Up voltage on pin 3 of IC301
1) Turn on the switch power of the set and then Iin1 will be maximum high (Voltage drop on pin4 of IC801 = 18.4V) for a moment. In this time V1 ≈ 115V, V2 ≈ 5V (5V St-By operate), V3 ≈ 0.5V, V4 = 0V, IFB ≈ 1.7V and pin29 (power) of IC501 = 0V. And then IC801 will be operating to stand-by mode and still for about 4.12s (T1). Also the voltage drop on pin4 of IC801 at T1 = 11.3V
2) After time of T1 finished, pin29 (power) of IC501 active = 5V, Q813 operate, IC lower, IFB lower too. In this time IC801 is operate mode, T803 has induce from pin14 to pin1, and then Iin2 flow through D801 to pin4 of IC801. So the voltage drop on pin4 of IC801 ≈ 16.1V (T2).
At the first time of pin29 (power) of IC501 active = 5V, IC804 supplier the 9V (V3) to corrector of Q301, C308 coupling the V3 to ground for a moment, after that V3 is continuously increasing.
3) In that case of Open circuit (H-output circuit cannot operating), V4 only high a moment and then V4 = 0V. And Q301 cannot operate, V3 increasing ≈ 1.5V (Max = 3.4V), Q16 operate, V2=0V and then the set return to st-by mode again.
4) In that case of Short circuit (Over current flow). The voltage drop on FR403 high, and then Q403 operate, IL2flow, Q16 operate, V2=0V and then the set return to st-by mode again.
T1(St-by)
T2(Operating)
T3(St-by)
Switch Off
V1
V2
V3
V4
V4
Iin1
Iin2
IFB
Switch Off
Switch Off
Switch Off
CIMA II TRAINING MANUAL : POWER SUPPLYCIMA II TRAINING MANUAL : POWER SUPPLY
Page 97 of 107 LGE/ NTV
D826RU3AMV
C803
T803
PowerSupply
C309330/25
LA42152 (Pin 7, Vcc)D824
SFAF504G
13.9V / 25mAS-Vcc17V
D813RU3AMV
C309330/25
D8201N4148
R83356/0.5W
IC 04KIA78L05BP D-Coil Relay
4.96V / 37mA
T/X Pre-amp
LA42152 (Pin 5, St-by)
LA76941 (Pin 35, Vcc)
AT24C04 (Pin8, Vcc)
D-Coil Relay
T/X Pre-amp
LA42152 (Pin 5, St-by)
LA76941 (Pin 35, Vcc)
AT24C04 (Pin8, Vcc)
10.3V / 525mA
IC 804KIA78R09PI
R610(0RS)18/2W
IC 803KIA7805A IC501 (Pin 55, VCD)
HIC291 (Pin1, Vcc)R620
(0RS)10/1W
5.04V
Tuner 5V
LA76941 (Pin43)
LA76941 (Pin11, RGB Vcc)
LA7958 (Pin 8, IF Vcc)
EYE Vcc
LV1116N (Pin17, Vcc)
FBT B+
Tuner 30V
R132 (0RS)47/2W
R513 120 1/2W
R529 75 1/6W
R517 10uH
5.01V
5.2V
8.0V
8.91V
R107 (RS)12K/2W
27.97V
109.63V/380mA.
FR403 (RF)1.2/2W
L802 82uH
R833(RS) 0.47/2W
C831 220/160
110.07V110.1V110.27V/395mA
9V
B+110V
3
2
10
9
4
11
8
6
1
C5404.7/250V
HV
FOCUS
SCREEN
HEATER
AFC
D505RGP10J
R416
FR401
D301RGP15J
C309470/35VT402
RGB PCB180V 181.8V/18mA.
24V LA78040NPin2 , Vcc
28.4V/320mA.
CIMA II TRAINING MANUAL : POWER SUPPLYCIMA II TRAINING MANUAL : POWER SUPPLY
Page 98 of 107 LGE/ NTV
TP1, 2, 9
TP3
TP4
TP5
TP6
TP7
TP8
TP12, 11
TP13 TP14
TP15
TP16
TP17
TP18
TP19
CIMA II TRAINING MANUAL : WAVE FORMCIMA II TRAINING MANUAL : WAVE FORM