Vitek DVR-960S, DVR-96T, DVR-96H, DVR-96D, DVR-96E Service Manual
SERVICE MANUAL
MODEL : DVR-960S/T/H/D/E
TABLE OF CONTENTS
1. SAFETY & PRECAUTION
1-1. REMEMBER-SAFETY FIRST 4
1-2. WORKING WITH CHIP COMPONENTS 5
2. EXPLODED VIEW and PART LIST
2-1. DVR-960S 6
2-2. DVR-960T 7
2-3. DVR-960H 8
2-4. DVR-960D 9
2-5. DVR-960E 10
3. SET BLOCK DIAGRAM 11
4. SCHEMATICS
4-1. DVR-960S FRONT 12
4-2. DVR-960T FRONT 13
4-3. DVR-960H FRONT 14
4-4. DVR-960D FRONT 15
4-5. DVR-960E FRONT 16
4-6. Power, Reset, Audio, HDMI
4-7. TVP5146, 1394PHY, USB
4-8. Flash, ATAPI
4-9. DDR SDRAM & TERMINATION
4-10. DMN-8652
4-11. A/V Output
4-12. A/V Input, Tuner
4-13. SCART
4-14. SMPS
17
18
19
20
21
22
23
24
25
5. PCB DIAGRAMS
5-1. DVR-960S FRONT PCB 26
5-2. DVR-960T FRONT PCB 27
5-3. DVR-960H FRONT PCB 28
5-4. DVR-960D FRONT PCB 29
5-5. DVR-960D SLIDE FRONT PCB 30
5-6. DVR-960E FRONT PCB 31
5-7. MAIN PCB_TOP 32
5-8. MAIN PCB_BOTTOM 33
5-9. SCART PCB 34
5-10. SMPS 35
6. ELECTRICAL PART LIST 36
7. TROUBLE SHOOTING
7-1. Initial Troubleshooting 40
7-2. DVD Mode Video Troubleshooting 4
7-3. DVD Mode Audio Troubleshooting 4
7-4. Tuner INPUT mode Troubleshooting 4
7-5. AV INPUT mode Troubleshootin 4
7-6. DV INPUT mode Troubleshootin 43
0
1
2
3
7-7. USB INPUT mode Troubleshootin 43
7-8. DVD/HDD REC Mode VIDEO Troubleshooting 4
7-9. DVD/HDD REC Mode AUDIO Troubleshooting 4
7-10. CANAL FUNCTION 4
7-11. Firmware Up-grade 4
4
5
6
6
1. SAFETY & PRECAUTION
1-1. REMEMBER-SAFETY FIRST
WARNING : Always disconnect the unit from the mains supply before dismantling it.
WARNING : Remove your wrist strap before applying power to the reassembled.
equipment to avoid potential shock hazards.
WARNING : The incorrect substitution of electrolytic capacitors may result
in an explosion hazard.
CAUTION : Work on an earth mat and wear a wrist strap and earth lead to prevent
electrostatic damage to components. Once the main board is removed
from the casing it is fairly flexible, so handle it carefully to avoid
damaging the components.
CAUTION : Before you apply mains power to the unit , always ensure
that the voltage rating stated on the rear panel of the unit matches
the mains voltage supply in the country of installation.
CAUTION : Do not spray chemicals on or near the unit.
CAUTION : Replacements for faulty components must be of the correct value
and rating and must be assembled by a competent service engineer,
otherwise safety approvals could be invalidated.
CAUTION : Do not put anything on the top cover and beside of unit for well ventilation.
CAUTION : Do not overload wall outlets, extension cords or convenience receptacles
beyond their capacity, since this can result in fire or electric shock.
CAUTION : Never push objects of any kind into the set through the cabinet slots
as they may touch dangerous voltage point or short out part that could
result in a fire or electric shock.
WORKING
RISK ELECTRIC
SHOCK
DO NOT OPEN
This symbol indicates “dangerous
voltage” inside the product that
presents a risk of electric shock
TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT
REMOVE COVER(OR BACK), NO USER SERVICEABLE
PARTS INSIDE. REFER SERVICING TO QUALIFIED
SERVICE PERSONNEL
This symbol indicates
Important instructions
!
Accompanying the
Product.
1-2. WORKING WITH CHIP COMPONENTS
2. EXPLODED VIEW
2-1. DVR-960S
2-2. DVR-960T
2-3. DVR-960H
2-4. DVR-960D
2-5. DVR-960E
3. Block Diagram
SDA
SCL
DVD PART(LSI LOGIC)
HDD
80/160 /2 5 0 GB
DVD+/- RW
DISPLAY
FRONT
KEY,IR
IEEE1394 PHY I/F
(TSB41AB1)
U24
IEEE1394
USB
DATA[0:15]
DATA[0:15]
CLK, DATA, STB
DATA[0:7]
49MHz
256Mb X 2(DDR)
U29, U30
HOST [MASTER]
PORT
DVD DECODER
(DMN8652)
U32
FLASH 4 MB
U28
I2C
E2PROM
(OPTION)
HDMI (OPTION)
HSYNC,VSYNC,MCLK
MCLK,BCK LRCK , AudioDATA[0:3]
I2C
16bit YPbPr
I2C
VO_D [1 5 ..0]
AO_IEC958
2CH AUDIO DAC
(PCM1754)
U16
Scaler
16bit YPbPr
HSYNC,VSYNC,MCLK
2M*32Bit SDR AM
VIDEO DRIVER
(MM1623)
UA4
HDMI TRANSFER
(SIL9030)
U19
TTL
UA5
OP AMP
UA6
VIDEO SWITCH
(MM1226)
US4
VIDEO SWITCH
(MM1228)
US3
TXD+-[0:3]/TXC+-
CVBS/Y/C/R/G/B
OPTICAL/COAXIAL
AUDIO SWITCH
(HEF4052B)
US2
AUDIO SWITCH
(HEF4052B)
US1
DDC_I2C
FL/FR
HDMI OUT
L/R INPUT
L/R O UTPUT
CVBS OUTPU T
CVBS INPUT
L/R INPUT
L/R O UTPUT
RGB INPUT
CVBS INPUT
CVBS OUTPU T
Y/C OUT
CVBS
2CH
AUDIO
OUTPUT
R/G/B OUT
JS1
SCART 1
JS2
SCART 2
8 BIT VIDEO O U T
[CCIR656]
NTSC/PAL
VIDEO
DECODER
(TVP5146)
U25
MCLK,BCK LRCK ,D ATA[0:3]
RGB
Y/C
CVBS
CVBS
AUDIO ADC
(PCM1801)
U22
VIDEO SWITCH
(MM1111)
UA2
AUDIO SWITCH
(HEF4052B)
UA1
AUDIO DEMOD
I2C
(MSP3415/25)
UA3
I2C
L/R
FRONT
INPUT
L/R
REAR
INPUT
Y/C REAR
INPUT
CVBS
FRONT
INPUT
CVBS
REAR
INPUT
V IDEO OUT
AUDIO O U T
I2C
TUNE R
TA1
4. SCHEMATICS
4-1. DVR-960S FRONT
4-2. DVR-960T FRONT
4-3. DVR-960H FRONT
4-4. DVR-960D FRONT
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