Detailed instructions for use are in the User's Guide.
[. . . ] SERVICE MANUAL
DVD RECORDER SERVICE MANUAL
MODEL : DR165/DR175/DR676X
CAUTION
BEFORE SERVICING THE UNIT, READ THE "SAFETY PRECAUTIONS" IN THIS MANUAL.
MODEL : DR165/DR175/DR676X
CONTENTS
SECTION 1 . REPLACEMENT PARTS LIST
SECTION 1 SUMMARY
CONTENTS
PRODUCT SAFETY SERVICING GUIDELINES FOR VIDEO PRODUCTS. . . . . . . . . . . . . . 1-2 SERVICING PRECAUTIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-3
· General Servicing Precautions · Insulation Checking Prodedure · Electrostatically Sensitive Devices
SERVICE INFORMATION FOR EEPROM IC SETTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] MAIN POWER BLOCK DIAGRAM
3. 3V
L1415
3V3D
FLA SH
74LVT16373
L1416 L1417
L1602 L1105 L1418
PLLVDD AVDD 3V3D_PHY
TSB41AB1
74LVC1G125 74LVC1G125
3V3A
3V3D_E5
L1114 XTAL_VDD L1104 DAC_VDD L1109 USB_VDD
5V
DMN8601 DMN8602
L1410
1. 8V
L1105 L1105
REF_VDD PLL_ VDD
74HCT125
L1409
2V5D_DDR
2. 5V
L1413
SDRAM
G2955
VTT
3-22
3-23
3. VIDEO IN BLOCK DIAGRAM
AV4 In
JK807 JK806
Y/C CVBS
F_CVBS_IN
AV3 In
JK802
CVBS
R_CVBS_IN
RF In
MAIN
I/O
TUNER TU701
F_C_IN F_Y_IN
IC1101 DMN-8601 / DMN-8602 MPEG ENC/DEC
Digital Vi deo ITU. R-BT 656 VIN_D[2:9], VIN_CLK
PVM01 PMV02
R_SCART_IN
IC901 Video Decoder Audio Processor SAA7137
SW_V_IOUT
R_SCART_IN
R_SCART_IN
EU2_V_IN
TU_V_IN
ATAPI I/F
IC1803 AV S/W MM1443
EU1_V_IN
DVD DRIVER
R/G/B
CVBS
CVBS
SCART(AV2)
SCART(AV1)
3-24
3-25
4. VIDEO OUT BLOCK DIAGRAM
JK801
Y/C
JK802
CVBS Y / Pb / Pr
MAIN
I/O
Y
IC1101 DMN-8601 / DMN-8602 MPEG ENC/DEC
C L/C Filter & 150 Ohm IC802 Video 6dB Amp BH7868FS CVBS PVM01 PMV02
SW801
Y/G Pb / B Pr / R
5V
CVBS , S-VIDEO Component / RGB ATAPI I/F
IC701 MICOM
GND
IC1803 AV S/W MM1443
DVD DRIVER
CVBS
CVBS R / G / B
SCART(AV2)
SCART(AV1)
3-26
3-27
5. AUDIO IN BLOCK DIAGRAM
AV4 In
JK805 JK804
L / R IN
AV3 In
JK802
L / R IN
RF In
MAIN
Digital Audio IN MCLK I2S
I/O
TUNER TU701
F_A L / R IN R_A L / R IN
IC1101 DMN-8601 / DMN-8602 MPEG ENC/DEC
AI_MCLK AI_FSYNC AI_SCLK AI_DO
IC901 Video Decoder Audio Processor SAA7137
DAC
SW_ AUDIO OUT L / R
PVM01 PMV02
SIF
IC_ OUT L / R SECAM AM
ATAPI I/F
IC1803 AV S/W MM1443
TU_ L / R OUT
IC903, 904 AUDIO S/W NJM2521
DVD DRIVER
L / R IN
L / R IN
SCART(AV2)
SCART(AV1)
3-28
3-29
6. AUDIO OUT BLOCK DIAGRAM
AV4 In
JK805 JK804
L / R IN
AV3 In
JK802
L / R IN
RF In
MAIN
Digital Audio IN MCLK I2S
I/O
TUNER TU701
F_A L / R IN R_A L / R IN
IC1101 DMN-8601 / DMN-8602 MPEG ENC/DEC
AI_MCLK AI_FSYNC AI_SCLK AI_DO
IC901 Video Decoder Audio Processor SAA7137
DAC
SW_ AUDIO OUT L / R
PVM01 PMV02
SIF
IC_ OUT L / R SECAM AM
ATAPI I/F
IC1803 AV S/W MM1443
TU_ L / R OUT
IC903, 904 AUDIO S/W NJM2521
DVD DRIVER
L / R IN
L / R IN
SCART(AV2)
SCART(AV1)
3-30
3-31
7. SYSTEM MAIN BLOCK DIAGRAM
IC1301
Ad dress
HA[6:21]
IC1302
FLASH ROM
/SYS_RST
Latch IC
HD[0:15]
RESET Circuit
/FCS0, /OE2 /FLASH_WE
/RST_HOST SIO_SPI CLK, CS0, MOSI
E5_ALE
IC701 MICOM
/E5_RST SPI_CLK, CS0, MOSI
SPI I/F Buffer
PVM02 PMV03
SIO_SPI_MISO I2C ( SDA , SCL )
IC1101 DMN-8601 / DMN-8602 MPEG ENC/DEC
SPI_MISO /VDEC_IRQ /RST_VDEC
IC901
SAA7137 AV IC
IC808 IC1601
TSB41AB1 PHY IC
CS4351 A DAC
/RST_PHY
ATAPI I/F
SDRAM I/F
IC1202 IC1203 DDR
DVD DRIVER
MAIN
I/O
3-32
3-33
8. I/O µ-COM BLOCK DIAGRAM
SECAM_AM
AV S/W IC803 MM1443
TU_L_OUT TU_R_OUT
IC903, 904 A S/W NJM2521
IC_OUT_L IC_OUT_R
SIF
SMPS
POWER BOARD X702 X701 14. 31818MHz 32. 768KHz PWR_CTL_H I2C_DATA I2C_CLK
AV. DEC IC901 SAA7137
EEPROM IC705 24LC16B
TUNER TU701
SMPS Block
on I/O BOARD
TIMER_H STANBY_H
SIO_SPI_CLK SIO_SPI_MOSI
AFT
MAIN
DMN8601 DMN8602 MPEG
SW_V_OUT
SI0_SPI_CS0
SIO_SPI_MISO
MICOM IC701 MN101DF10GAF
DAV
VPS IC801 SDA5650
AV S/W IC803 MM1443
TIMER
CV. IN2
DRIVER IC601 PT6955
G[ 1:7 ] S[ 1:8 ]
V_CLK, VSTB TIMER_DOUT
6dB AMP IC703 MM1510 IC704 KIA7042
TU_V_OUT
RESET PWR_FAIL_L
IC706 KIA7031
DIG601 LED CLOCK
I/O
3-34
3-35
9. SCART BLOCK DIAGRAM(SCART MODEL ONLY)
Audio L/R CVBS TUNER
DV (1394)
TPA/TPB +/-
SCART1 SCART2
A/V 1 AV SWITCH CANAL+ MM1443 T. Audio SW A/V SIF D. Video R-656 D. Audio ADC I2S D. Audio DAC I2S SPI MICOM T. Video PHY TSB41AB1
A/V 2
Rear RCA Front RCA Rear RCA
Coaxial OUT Optical OUT
A/V 3 A/V 4 PHILIPS SAA7137 VIDEO DECODER AUDIO ADC / MSP
Audio L/R AUDIO DAC CS4351
DMN-8602 MPEG
ATAPI I/F
IEC60958 ( S/PDIF )
DVD DRIVER
CVBS Video 6dB Amp BH7868FS
Rear RCA
CVBS S-VIDEO Component
CVBS S-VIDEO Component
3-36
3-37
CIRCUIT DIAGRAMS
1. POWER CIRCUIT DIAGRAM
IMPORTANT SAFETY NOTICE WHEN SERVICING THIS CHASSIS, UNDER NO CIRCUMSTANCES SHOULD THE ORIGINAL DESIGN BE MODIFIED OR ALTERED WITHOUT PERMISSION FROM THE LG ELECTRONICS CORPORATION. ALL COMPONENTS SHOULD BE REPLACED ONLY WITH TYPES IDENTICAL TO THOSE IN THE ORIGINAL CIR-
CUIT. SPECIAL COMPONENTS ARE SHADED ON THE NOTE : SCHEMATIC FOR EASY IDENTIFICATION. Replace only THIS CIRCUIT DIAGRAM MAY OCCASIONALLY DIFwith specified part number. Voltages are DC-measured with a digital voltmeter IMPLEMENTATION OF THE LATEST SAFETY AND during Play mode. PERFORMANCE IMPROVEMENT CHANGES INTO THE SET IS NOT DELAYED UNTIL THE NEW SERVICE LITERATURE IS PRINTED.
12
No Power BD101, R101 are Defective
11
14VA No Power D127 is Defective
10
12V No Power IC131 is Defective
9
No Power D102 is Defective
8
5. 5VA No Power D125 is Defective 3. 7V No Power D124 is Defective 5V No Power IC132 is Defective
7
6
5
S/W Error IC101, IC104 are Defective
5. 3VA No Power D121 is Defective 33V No Power Q161 is Defective
4
No Power F101 is Defective
3
2
Switching Error IC102, IC103 are Defective
1
NOTES) NOTES) Symbol denotes AC ground. NOTE) NOTE) NOTE) NOTE) Warning Parts that are shaded are critical With respect to risk of fire or electricial shock.
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-38
3-39
2. MAIN POWER CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-40
3-41
3. MPEG CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-42
3-43
A
4. A. LATCH/FLASH/DDR CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-44
3-45
5. LOADER/DV CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-46
3-47
6. I/O µ-COM CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-48
3-49
7. TUNER/MPX/ADC/DAC/JACK CIRCUIT DIAGRAM
12
11
10
9
8
7
6
5
4
3
2
1
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
Q
R
S
T
3-50
3-51
8. [. . . ] THE POWER SIGNAL DETECTED WITH THE PD FOR FRONT MONITOR DETECTION IS INPUT THE VOLTAGE FROM THE VPD PIN(123PIN) OR THE FPDM PIN(127PIN), THE REFERENCE SIGNAL OF THE INPUT SIGNAL IS INPUT FROM THE VREFPD PIN(124PIN). THE ALPC BLOCK GENERATES THE SINGALS FROM THE INPUT LASER POWER SIGNALS IN THE FOLLOWING DETECTION SYSTEMS. THIS BLOCK HAS FOUR DETECTION PATHS:ALL AVERAGE VALUE PATH, MULTI PULSE AVERAGE/PEAK VALUE DETECTION PATH, ERASE/BOTTOM VALUE DETECTION PATH, SPACE/PLAYBACK POWER VALUE DETECTION PATH.
4-34
DESCRIPTION OF CIRCUIT
2. FOCUS, TRACKING & SLED SERVO PROCESS
Focus, Tracking, Sled Servo
Pick-up E F B C G H A D
A, B, C, D E, F, G, H A, B, C, D E, F, G, H A, B, C, D
Focus Error Detector
FE
Focus Error Detector
TE
IC121 AN22113A
Tracking Focusing Actuator 53
T-
54
T+
51
F-
52
F+
LIC201 Servo Control MN103SA6G
A/D
TE FE
LEVEL SHIFT LEVEL SHIFT
5 4
FDRV
60 64
TDRV
LIC301 BD7956FS
29 30
D A C
PARALLEL DIGITAL COMPENSATOR
STEP2
SLED COMPENSATOR A/D
SDRV
Logic
66 67
37 38 40 39 A+ A- B- B+
STEP1
M
Stepping Motor
4-35
MN103SA6G
Need to change to 16bit R On/Off Focus BD7956 Drive IC R On/Off Track
MECHANISM
S-DPWM 10bit 100/50 MHz
DESCRIPTION OF CIRCUIT
OPU
2-1. [. . . ]