LG HT924SF Service manual

Page 1
Internal Use Only
Website http://biz.lgservice.com
DVD RECEIVER SYSTEM
MODEL: HT924SF (HT924SF-A2 / SH94SF-C/S/W)SERVICE MANUAL
SERVICE MANUAL
MODEL: HT924SF
P/NO : AFN70208674 APRIL, 2009
(HT924SF-A2 / SH94SF-C/S/W)
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WIRING DIAGRAM
CAB
(20
FFC
A/V IN/OUT
HDMI
OUT
I/O Board
CN402
23PIN
CN103
13 PIN
CABLE3
(13PIN, FFC)
MD
CN250
20 PIN
SP
DIF
CAB
CABLE4
(20
(20PIN, FFC)
Tuner
LE4
PIN, , FFC
CN401
9PIN
20 PIN
)
PN106
15 PIN
CN102
18 PIN
CN201
14 PIN
CN602
CN902
14 PIN
CN903
15 PIN
SPK Terminal
MAIN PCB
SMPS PCB
FAN
CN603
2 PIN
13 PIN
PN202
2 MIC USB
MIC PCB
PTB
CN301
3 PIN
KEY PCB
CABLE1
(18PIN, FFC)
PN301
18 PIN
3 PIN
2-27 2-28
PN302
FRONT PCB
VFD
VOLUME
WIRING DIAGRAM
HT924
2009. 03. 27
Page 37
OVERALL BLOCK DIAGRAM
OPTICAL
IN
USB
HDMI
OUT
Portable
Aux-IN
TUNER
SPDIF
D+, D-
TMDS
MCLK,BCLK
LRCLK,DATA
AUX AUDIO
TUNER AUDIO
PORT AUDIO
SPDIF
SW
MCLK,BCLK
LRCLK,DATA
IC201
CS5345
(ADC)
DVD_RESET
SW_SPDIF
LRCLK, BCLK
MCLK
5345_DATA
DVD_RX
X100
9.8304 MHz
IC101
SANYO
AUDIO
MICOM
(100Pin)
DVD_TX
IC501
MT1389MH
(176PIN)
9830_RESET
27 MHz
9830_DAT
9830_CLK
AMP BOARDMAIN BOARD
X601
12.288 MHz
TAS5352_PDN
TAS5352_SD
IC601
PWM
MODULATOR
(PS9830B)
LRCLK, BCLK FRONT(ADATA0) REAR(ADATA1) C/W(ADATA2) D/M(ADATA3)
OPEN/CLOSE
FOCUS/SLED
SPINDLE/TRACKING
FL+/-, FR+/-
RL+/-, RR+/­CENTER+/­WOOFER+/-
A, B, C, D, E, F, RF
MD_DVD, MD_CD LD_DVD, LD_CD VR_DVD, VR_CD
TAS5352 Power Amp (IC701~704)
FL
FR
RL
RR
C/T
S/W
MIC
Composite
Component
R, G, B
Y, Pb, Pr
IC2A1 S4308
MPEG Composite
MIC L/R
IC250
MM1692
Y/G, Pb/B, Pr/R
Y, C
DMA[0-10]
IC503
SDRAM
SDA
DB[0-15]
SCL
IC502
FLASH
2-29 2-30
SCL
IC504
EEPROM
SDA
6315_DO
6315_DI
ET16315
DRIVER
6315_CLK 6315_STB
VFD
GR[1-12] SG[1-16]
VFD
IC400 Motor Driver
F+/-, T+/-
SLED+/­SPINDLE+/­LOAD+/-
PICK-UP
Motor
BLOCK DIAGRAM
HT924
2009. 03. 27
Page 38
CIRCUIT DIAGRAMS
1. SMPS(POWER) CIRCUIT DIAGRAM
12
11
10
9
8
IMPORTANT SAFETY NOTICE
WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG CORPORATION. ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIRCUIT.
SPECIAL COMPONENTS ARE SHADED ON THE SCHEMATIC FOR EASY IDENTIFICATION. THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFFER FROM THE ACTUAL CIRCUIT USED. THIS WAY, IMPLEMENTATION OF THE LATEST SAFETY AND PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED.
NOTE :
1. Shaded( ) parts are critical for safety. Replace only with specified part number.
2. Voltages are DC-measured with a digital voltmeter during Play mode.
7
6
5
4
3
2
1
NOTES) Symbol denotes AC ground.
NOTES) Symbol denotes DC chassis ground.
A
SMPS
HT924
NOTE) Warning
NOTE) Parts that are shaded are critical NOTE) with respect to risk of fire or NOTE) electricial shock.
B C D E F G H I J K L M N O P Q R ST
3H301H-1
2009. 04. 06
2-31 2-32
Page 39
2. MPEG CIRCUIT DIAGRAM
12
11
10
9
8
6
5
36
7
37
6
39
38
5
4
40
7
1
3
2
MPEG
1
WAVEFORM
19
21
20
23425 32
HT964/HT904/HT924
EBY57656101(#1) REV9.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-33 2-34
Page 40
3. SERVO CIRCUIT DIAGRAM
12
11
10
24
9
26
16
13
8
12
33
10
7
11
29
30
14
6
15
18
17
28
31
34
35
22
5
4
27
8
3
2
9
SERVO
1
WAVEFORM
HT964/HT904/HT924
EBY57656101(#2) REV9.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-35 2-36
Page 41
4. I/O CIRCUIT DIAGRAM
12
11
10
9
8
7
6
WIRELESS PART
5
4
3
2
I/O
1
HT964/HT904/HT924
EBY57656101(#3) REV9.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-37 2-38
Page 42
5. MICOM CIRCUIT DIAGRAM
12
HT964 HT904/HT924 HT994
11
10
9
8
2
7
6
5
3
4
3
2
MICOM
1
WAVEFORM
HT964/HT904/HT924
EBY57656101(#4) REV9.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-39 2-40
Page 43
6. AMP CIRCUIT DIAGRAM
12
11
10
9
8
7
6
41
5
4
3
2
42
43
44
45
46
WAVEFORM
AMP
1
HT964/HT904/HT924
EBY57656101(#8) REV9.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-41 2-42
Page 44
7. DSP & PWM CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
DSP&PWM
1
HT964/HT904/HT924
EBY57656101(#9) REV9.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-43 2-44
Page 45
8. I/O JACK CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
I/O JACK
1
HT964/HT904/HT924
EBY57025201 REV7.3
2009. 02. 19
A
BCDEFGH I J KLMNOPQRST
2-45 2-46
Page 46
9. MIC & USB & PTB CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
MIC&USB&PTB
1
EBY60665501 REV2.2
HT924
2009. 03. 27
A
B C D E F G H I J K L M N O P Q R ST
2-47 2-48
Page 47
10. FRONT TIMER CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
TIMER
1
EBY60665401 REV1.3
HT924
2009. 03. 27
A
B C D E F G H I J K L M N O P Q R ST
2-49 2-50
Page 48
11. PWR KEY CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
PWR KEY
1
EBY60665701 REV1.2
HT924
2009. 03. 27
A
B C D E F G H I J K L M N O P Q R ST
2-51 2-52
Page 49
CIRCUIT VOLTAGE CHART
1. ICs on BOARD
MAIN
IC100 (EEPROM, M24C16-WMN6TP)
Pin No. SPEC DVD PB (V)
8 5 4.94
IC101 (A-Micom) LC87F5N62BVU
Pin No. SPEC VOLT
14 5.0 4.94
40 5.0 4.94
55 5.0 4.94
89 5.0 4.94
IC104 (KIA278R33PI)
Pin No. SPEC VOLT
1 5.0 5.0
3 3.3 3.3
IC106 (KIA78R05PI)
Pin No. SPEC VOLT
1 5.6 5.6
255
IC201 (ADC, CS5346)
Pin No. SPEC VOLT
5 3.3 3.24
14 5 5.05
36 3.3 3.26
46 3.3 3.24
IC202 (DIR, CS8422)
Pin No. SPEC DVD PB (V)
3 3.3 3.24
19 3.3 3.24
22 3.3 3.24
IC2A1 (MIC, S4308)
Pin No. SPEC VOLT
6 12.0 11.4
IC400 (MOTOR, AM5890)
Pin No. SPEC VOLT
8 5.0 5.05
19 5.0 5.05
IC501 (MPEG, MT1389MH)
Pin No. SPEC DVD PB (V)
1 1.8 1.88
2 3.3 3.22
12 3.3 3.22
22 3.3 3.22
25 1.8 1.88
38 3.3 3.24
Pin No. SPEC DVD PB (V)
57 3.3 3.24
67 3.3 3.24
79 1.8 1.87
92 3.3 3.24
101 3.3 3.24
109 1.8 1.87
114 3.3 3.24
119 1.8 1.87
125 3.3 1.88
134 3.3 3.22
139 3.3 3.22
141 3.3 3.22
150 3.3 3.22
151 3.3 3.22
163 3.3 3.22
164 3.3 3.22
165 1.8 1.88
IC502 (FLASH, MX25L1605DM2I)
Pin No. SPEC DVD PB (V)
8 3.3 3.22
IC503 (SDRAM/PROMOS, V54C3128164VBI6)
Pin No. SPEC DVD PB (V)
1 3.3 3.22
3 3.3 3.25
9 3.3 3.24
14 3.3 3.25
27 3.3 3.24
43 3.3 3.24
49 3.3 3.24
IC504 (EEPROM, KS24C021CS)
Pin No. SPEC DVD PB (V)
8 3.3 3.24
IC542
Pin No. SPEC DVD PB (V)
8 3.3 3.25
IC601 (PWM, PS9830)
Pin No. SPEC DVD PB (V)
4 3.3 3.21
10 3.3 3.21
22 3.3 3.21
29 3.3 3.21
39 3.3 3.21
47 3.3 3.21
Pin No. SPEC DVD PB (V)
56 3.3 3.21
65 3.3 3.21
72 3.3 3.21
91 3.3 3.21
94 3.3 3.21
IC602 (DSP, CS48560)
Pin No. SPEC DVD PB (V)
12 3.3 3.22
24 3.3 3.22
37 3.3 3.22
48 3.3 3.22
16 1.8 1.85
28 1.8 1.85
42 1.8 1.85
IC701 (AMP, TAS5352)
Pin No. SPEC DVD PB (V)
26 35 35.44
27 35 35.43
32 35 35.43
35 35 35.44
40 35 35.43
41 35 35.43
IC702 (AMP, TAS5352)
Pin No. SPEC DVD PB (V)
26 35 35.44
27 35 35.43
32 35 35.43
35 35 35.44
40 35 35.43
41 35 35.43
IC703 (AMP, TAS5352)
Pin No. SPEC DVD PB (V)
26 35 35.44
27 35 35.43
32 35 35.43
35 35 35.44
40 35 35.43
41 35 35.43
IC704 (AMP, TAS5352)
Pin No. SPEC DVD PB (V)
26 35 35.44
27 35 35.43
32 35 35.43
2-53 2-54
Pin No. SPEC DVD PB (V)
35 35 35.44
40 35 35.43
41 35 35.43
FRONT
IC301 (VFD, PT6315)
Pin No. SPEC VOLT
13 5.0 5.08
43 5.0 4.99
Page 50
2. CAPACITORS ON BOARD
No Value (uF) Voltage_Spec positive (+) negative (-) voltage
C101 10uF 16 4.94 0.00 4.94
C106 100uF 16 5.00 0.00 5.00
C116 47uF 16 4.95 0.00 4.95
C117 10uF 16 3.90 0.00 3.90
C120 47uF 16 4.95 0.00 4.95
C123 100uF 16 3.30 0.00 3.30
C133 100uF 16 5.04 0.00 5.04
C201 10uF 16 2.50 2.16 0.34
C202 10uF 16 2.51 2.24 0.27
C203 10uF 16 2.50 2.22 0.28
C204 10uF 16 2.10 2.10 0.00
C205 10uF 16 2.51 2.23 0.28
C206 10uF 16 2.50 2.22 0.28
C207 10uF 16 2.51 2.24 0.27
C208 10uF 16 2.51 2.19 0.32
C211 10uF 16 2.41 0.00 2.41
C212 47uF 16 4.83 0.00 4.83
C213 10uF 16 5.05 0.00 5.05
C214 10uF 16 0.52 0.51 0.01
C215 10uF 16 0.52 0.42 0.10
C223 10uF 16 3.24 0.00 3.24
C224 10uF 16 3.24 0.00 3.24
C228 10uF 16 2.47 0.00 2.47
C229 10uF 16 3.24 0.00 3.24
C275 10uF 16 2.99 2.63 0.36
C276 10uF 16 2.38 2.21 0.17
C278 100uF 16 5.04 0.00 5.04
C284 47uF 16 5.03 0.00 5.03
C285 22uF 16 2.51 0.00 2.51
C286 470uF 6.30 2.41 1.44 0.97
C288 470uF 6.30 1.70 0.00 1.70
C289 470uF 6.30 2.34 0.00 2.34
C290 470uF 6.30 2.34 0.00 2.34
C2A3 22uF 16 1.95 0.00 1.95
C2A5 100uF 16 1.99 0.84 1.15
C2A7 1uF 50 0.00 0.00 0.00
C2A9 100uF 16 11.07 0.00 11.07
C2C2 10uF 16 3.25 0.00 3.25
C2C4 10uF 16 3.22 0.00 3.22
C2C6 10uF 16 2.48 0.00 2.48
C3D2 47uF 16 4.95 0.00 4.95
C417 47uF 6.30 3.19 2.27 0.92
No Value (uF) Voltage_Spec positive (+) negative (-) voltage
C418 47uF 6.30 3.19 3.04 0.15
C419 100uF 6.30 3.19 0.00 3.19
C420 100uF 6.30 5.03 0.00 5.03
C421 100uF 6.30 5.03 0.00 5.03
C422 100uF 6.30 1.89 0.00 1.89
C423 100uF 6.30 5.04 0.00 5.04
C426 47uF 16 2.05 0.00 2.05
C427 47uF 16 1.43 0.00 1.43
C553 10uF 25 1.31 1.04 0.27
C554 10uF 25 1.29 1.06 0.23
C555 47uF 16 3.24 0.00 3.24
C556 47uF 6.30 1.88 0.00 1.88
C557 47uF 6.30 1.88 0.00 1.88
C558 47uF 16 3.22 0.00 3.22
C559 47uF 6.30 1.87 0.00 1.87
C560 47uF 6.30 1.57 0.00 1.57
C561 47uF 6.30 1.36 0.00 1.36
C563 10uF 25 3.21 0.00 3.21
C564 10uF 25 3.25 0.00 3.25
C565 10uF 25 3.25 0.00 3.25
C618 10uF 16 1.92 0.00 1.92
C620 10uF 16 1.93 0.00 1.93
C622 220uF 6.30 3.21 0.00 3.21
C625 10uF 16 1.85 0.00 1.85
C630 10uF 16 3.22 0.00 3.22
C652 220uF 6.30 1.93 0.00 1.93
C707 47uF 25 11.79 0.00 11.79
C749 47uF 25 11.79 0.00 11.79
C785 47uF 25 11.79 0.00 11.79
C7B5 47uF 25 11.78 0.00 11.78
C7F7 10uF 16 11.77 0.00 11.77
C7F9 47uF 25 11.76 0.00 11.76
C7G3 47uF 25 11.77 0.00 11.77
C801 10uF 25 4.94 0.00 4.94
C852 47uF 16 3.31 0.00 3.31
C854 10uF 25 3.31 0.00 3.31
C858 10uF 25 3.31 0.00 3.31
C861 10uF 25 3.31 0.00 3.31
C863 10uF 25 3.31 0.00 3.31
C866 10uF 25 1.87 0.00 1.87
C875 10uF 25 1.78 0.00 1.78
C876 10uF 25 3.31 0.00 3.31
No Value (uF) Voltage_Spec positive (+) negative (-) voltage
C878 10uF 25 1.78 0.00 1.78
C880 10uF 25 1.78 0.00 1.78
C882 10uF 25 3.31 0.00 3.31
C888 10uF 25 1.78 0.00 1.78
C894 10uF 25 5.03 0.00 5.03
C130 10uF 16 3.23 0.00 3.23
C3A2 47uF 50 0.00 -27.60 27.6V
C307 47uF 16 -21.60 -24.56 2.96V
C3A1 47uF 16 5.00 0.00 5V
C309 220uF 6.3 4.91 0.00 4.91V
C2D1 220uF 6.3 5.03 0.00 5.03V
C2D3 4.7uF 50 1.62 1.33 0.29V
C2D4 4.7uF 50 1.56 1.01 0.55V
3. DIODES ON BOARD
Pin No. VOLT
ZD2M1 (BZX84-C5V1)
1 -0.01 V
2 -0.28 V
3 0.02 V
ZD2M2 (BZX84-C5V1)
1 -0.01 V
2 -0.13 V
3 -0.01 V
ZD302 (BZX84-C5V1)
10 V
20 V
3 5.07 V
ZD500 (BZX84-C5V1)
1 -0.01 V
2 -0.23 V
30 V
D801 (DAN202K)
1 -0.01 V
2 -0.23 V
30 V
2-55 2-56
Page 51
PRINTED CIRCUIT BOARD DIAGRAMS
1. MAIN P.C. BOARD DIAGRAM ( TOP VIEW )
2-57 2-58
Page 52
MAIN P.C. BOARD DIAGRAM ( BOTTOM VIEW )
2-59 2-60
Page 53
3. SMPS P.C. BOARD DIAGRAM
NOTE: Warning
Parts that are shaded are critical With respect to risk of fire or electrical shock.
2-61 2-62
Page 54
3. MIC & USB & PTB P.C.BOARD DIAGRAM
4. FRONT P.C. BOARD DIAGRAM
2-63 2-64
Page 55
2-662-65
Page 56
SECTION 3. EXPLODED VIEWS
• CABINET AND MAIN FRAME SECTION
A26
A50
I
A43
A41
NOTES) THE EXCLAMATION POINT WITHIN AN
EQUILATERAL TRIANGLE IS INTENDED TO ALERT THE SERVICE PERSONNEL TO THE PRESENCE OF IMPORTANT SAFETY INFORMATION IN SERVICE LITERATURE.
A
B
B
A
J
E
MAIN
H
C
A46
D
F
I
J
G
S01
900
E
F
H
G
SMPS
A47
H
Page 57
• DECK MECHANISM EXPLODED VIEW (DP-15A)
001
026
A02
013
017
435
015
A03
439
018
015B
015A
014
019
440
012
442
002
003
A01
010
012
037
020
016
012A
442
NSP : Non SVC Parts
LOCA. NO. LG PART NO. DESCRIPTION SPECIFICATION REMARKS
A01 ACA34280802 Clamp Assembly DECK/MECHA DP-12/13 ferrite ty
A02 AAN72927302 Base Assembly MAIN DP12AV -CKD
A03 AAN72927202 Base Assembly IM TRVS DP12AV -CKD
001 MGJ38556601 Plate PRESS SECC 0.8 dp-13 PRESS upp NSP
002 RAB30611501 Magnet,Ferrite FERRITE 50G NSP
003 MBU38556801 Clamp MOLD POM DECK/MECHA dp-13 MOLD NSP
010 EAD39264010 Cable,FFC AT10023240D05 240MM 1.00MM 23P
012 MCQ41263801 Damper MOLD BUTYL RUBBER DECK/MECHA D
012A MCQ38556901 Damper EXTRUSION BUTYL RUBBER DECK/ME
013 4400R-0006B Belt MOLD RUBBER DECK/MECHA DP2-5,
014 4470R-0154A Gear COMPLEX DVD DECK/MECHA DP8 PUL
015 4681R-A015D Motor Assembly,DC DVD DP-12A/T LOADING -
015A 4680R-E008A Motor,DC RF-300EA-1D390(80MM) 2V 90MA 2 NSP
015A EAU43506801 Motor,DC JQ24-35H390 2V 90A 28A 0RPM 0R ALTERNATE
015B 4560R-0008A Pulley MOLD POM DVD MD MOLD -
016 EBR62249302 PCB Assembly DP12AV LOADING/FEEDING -CKD -
017 4470R-0176A Gear DVD DP-9 LOADING MOLD
018 4974R-0067A Guide MOLD POM DVD DP-9C UP/DOWN MOL
019 MDQ39573201 Frame MOLD ABS XR-401 UP/DOWN FRAME
020 MAM39572801 Base MOLD ABS XR-401 MAIN BASE MOLD
026 3390R-0032A Tray MOLD ABS DVD DP-9MC DISK MOLD
037 EAZ40060202 Pick Up Assembly CMS-S77RFV(1) CMS-S77RFV(1) IM
435 1SZZR-0011A Screw,Customized MACHINE
439 1SZZR-0075A Screw,Customized - + 1.7MM 10MM SWRCH FZW SIN
440 1SZZH-1007B Screw,Customized + D2.0 6MM SWRCH16A/ZNBK 4MM 1
442 FAB30124101 Screw,Taptite 1szzr-0064 PWH + B 2.6MM 7MM S
3-3 3-4
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