[4] Charts Of Connecting Wires.........................7-5
[5] Wiring Side Of PWB .....................................7-6
PARTS GUIDE
HT-CN9900DVW
!
SERVICE MANUAL
No. S7119HTC990DZ
HOME THEATER WITH DVD
MODEL
Singapore, Malaysia, Indonesia, Philippines and India]
HT-CN9900DVW Home Theater with DVD consisting of
HT-CN9900DVW (main unit), CP-CN9900F (front speakers),
CP-CN9900C (centre speaker), CP-CN9900R (surround
speakers) and CP-CN9900W (subwoofer).
• In the interests of user-safety (Required by safety
regulations in some countries) the set should be restored to
its original condition and only parts identical to those
specified be used.
CONTENTS
HT-CN9900DVW
[For Jordan, Singapore-Export,
Parts marked with "" are important for maintaining the safety of the set. Be sure to replace these parts with
specified ones for maintaining the safety and performance of the set.
SHARP CORPORATION
This document has been published to be used for
after sales service only.
The contents are subject to change without notice.
HT-CN9900DVW
PRECAUTIONS FOR USING LEAD-FREE SOLDER
1. Employing lead-free solder
Lead-free wire solder for servicing
Ref No.
Description
Parts No.
"MAIN/AMP, DISPLAY, USB, MIC, SMPS PWB" of this model employs lead-free solder.
The LF symbol indicates lead-free solder, and is attached on the PWB and service manuals. The alphabetical
character following LF shows the type of lead-free solder.
2. Using lead-free wire solder
When fixing the PWB soldered with the lead-free solder, apply lead-free wire solder. Repairing with conventional
lead wire solder may cause damage or accident due to cracks.
As the melting point of lead-free solder (Sn-Ag-Cu) is higher than the lead wire solder by 40 C, we recommend
you to use a dedicated soldering bit, if you are not familiar with how to obtain lead-free wire solder or soldering
bit, contact our service sta
tion or service branch in your area.
3.
Soldering
As the melting point of lead-free solder (Sn-Ag-Cu) is about 220°C which is higher than the conventional lead
solder by 40°C,and as it has poor solder wettability, you may be apt to keep the soldering bit in contact with the
PWB for extended period of time. However, since the land may be peeled of for the maximum heat-resistance
temperature of parts may be exceeded, remove the bit from the PWB assoon as you confirm the steady
soldering condition.
Lead-free solder contains more tin, and the end of the soldering bit may be easily corrected. Make sure to turn
on and off the power of the bit as required. If a different type of solder stays on the tip of the soldering bit, it is alloyed with lead-free solder. Clean the bit after every use of it.
When the tip of the soldering bit is blackened during use, file it with steel wool or fine sand paper.
Be careful when replacing parts with pola
rity indication on the PWB silk.
Example:
Indicates lead-free solder of tin, silver and copper.
PWB-A 92LPWB8315MANS
PWB-A 92LPWB8316MANS
PWB-A 92LPWB8327MANS
PWB-A 92LPWB8328MANS
PWB-B RUiTZA049AWZZ
MAIN/AMP (A1), DISPLAY (A2), USB (A3), MIC (A4)
[ For Jordan, Singapore-Export ]
MAIN/AMP (A1), DISPLAY (A2), USB (A3), MIC (A4)
[ For Singapore, Malaysia, Indonesia ]
MAIN/AMP (A1), DISPLAY (A2), USB (A3), MIC (A4)
[ For Philippines ]
MAIN/AMP (A1), DISPLAY (A2), USB (A3), MIC (A4)
[ For India ]
SMPS
– 1
i
CHAPTER 1. GENERAL DESCRIPTION
This product is classified asa CLASS 1 LASER PRODUCT.
WARNINGS
THE AEL (ACCESSIBLE EMISSION LEVEL) OF LASER POWER OUTPUT FOR THIS MODEL IS SPECIFIED TO
BE LOWER THAN CLASS I REQUIREMENTS. HOWEVER, THE FOLLOWING PRECAUTIONS MUST BE OBSERVED
DURING SERVICING TO PROTECT YOUR EYES AGAINTS EXPOSURE TO THE LASER BEAM.
1- WHEN THE CABINET HAS BEEN REMOVED, THE POWER IS TURNED ON WITHOUT A COMPACT DISC,
AND THE PICKUP IS ON A POSITION OUTER THAN THE LEAD-IN POSITION, THE LASER WILL LIGHT FOR
SEVERAL SECONDS TO DETECT A DISC.
DO NOT LOOK INTO THE PICKUP LENS.
2- THE LASER POWER OUTPUT OF THE PICKUP INSIDE THE UNIT AND REPLACEMENT SERVICE PARTS
HAVE ALREADY BEEN ADJUSTED PRIOR TO SHIPPING.
3- NO ADJUSTMENT TO THE LASER POWER SHOULD BE ATTEMPTED WHEN REPLACING OR SERVICING
THE PICKUP.
4- UNDER NO CIRCUMSTANCES LOOK DIRECTLY INTO THE PICKUP LENS AT ANY TIME.
5- CAUTION - USE OF CONTROLS OR ADJUS
TMENTS, OR PERFORMANCE OF PROCEDURES OTHER THAN
THOSE SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
QACCEA001AW00
[1] Safety Precaution For Service Manual
HT-CN9900DVW
[2] AC Power Supply Cord
1 – 2
1 – 1
HT-CN9900DVW
Main unit
USB
Tuner
DVD player
Subwoofer
CP-CN9900 F/R Speaker
Power sourceAC 220 - 240 V ~ 50/60 Hz
Power
consumption
Power on: 120 W
Output powerFront speaker
(CP-CN9900):
RMS: 200 W (100 W + 100 W)
(10% T.H.D.)
Surround speaker
(CP-CN9900):
RMS: 200 W (100 W + 100 W)
(10% T.H.D.)
Centre speaker
(CP-CN9900):
RMS: 100 W (10% T.H.D.)
Subwoofer:
RMS: 100 W (10% T.H.D.)
Video output
terminals
Video output: RCA type x 1
HDMI output: HDMI x 1Support 480p/570p/1080p output
formats.
Follow the below-mentioned notes when disassembling the unit and reassembling it, to keep it safe and ensure
excellent performance:
1. Take compact disc out of the unit.
2. Be sure to remove the power supply plug from the wall outlet before starting to disassemble the unit.
3. Take off nylon bands or wire holders where they need to be removed when disassembling the unit. After servicing
the unit, be sure to rearrange the leads where they were before disassembling.
TO REMOVE SPEAKER UNIT, PRESS THESE LOCKING TABS
TO RELEASE SPEAKER WIRES.
SPEAKER UNIT
LOCKING
TAB
LOCKING TAB
SPEAKER
WIRE
(F1) x 5
M3 x 8mm
(J1) x 2
M3 x 8mm
(A2) x 4
M4 x 16mm
(A1) x 1
Net Frame Ass,y
(G4) x 3
M3 x 8mm
Display PWB
(E1) x 3
M3 x 8mm
(E2) x 2
(G1) x 1
(G2) x 1
(G3) x 1
Front Panel Assy
USB PWB
Mic PWB
(D3) x 2
(D2) x 1
Main/Amp PWB
SMPS PWB
Loader Assy with
DVD Mechanism
(D1) x 2
Special Screw
(H1) x 2
Special Screw
(K1) x 4
Special Screw
DVD Mechanism Unit
Loader Assy
Wooden Box Ass’y
Subwoofer
(D1) x 2
Special Screw
Figure 6
STEP REMOVALPROCEDUREFIGURE
1Subwoofer
1. Net Frame Ass'y ..............
(A1)x16
2. Screw...............................
(A2)x4
Subwoofer
2 – 2
HT-CN9900DVW
1. When the CD/DVD does not function
The CD/DVD section may not operate when the objective lens of the optical pickup is dirty. Clean the objective lens,
and check the playback operation. When this section does not operate even after the above step is taken, check the following items.
Remove the cabinet and follow the trouble shooting instructions.
"Track skipping and/or no TOC (Table Of Contents) may be caused by build up of dust other foreign matter on the laser
pickup lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."
Turn the power off.
Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol.
Do not touch the lens with the bare hand.
2. When a CD/DVD cannot be played
2.1. Pressing the CD/DVD operation key is accepted, but playback does not occur.
Using the brush in the cleaner cap, apply 1 or 2 drops of the cleaning fluid to the
brush on the CD cleaner disc which has the mark next to it.
Place the CD cleaner disc onto the CD/DVD disc compartment with the brush side
down, then press the play button.
You will hear music for about 20 seconds and the CD/DVD player will automatically
stop. If it still play continuously, press the stop button.
1.
2.
3.
The CD lens cleaner should be effective for 30-50 operations, however if the brushes
become worn out earlier then please replace the cleaner disc.
If the CD cleaner brushes become very wet then wipe off any excess fluid with a soft
cloth.
Do not drink the cleaner fluid or allow it contact with the eyes. In the event of this
happening then drink and / or rinse with clean water and seek medical advice.
The CD cleaner disc must not be used on car CD players or on computer CD-ROM
drives.
All rights reserved. Unauthorized duplicating, broadcasting and renting this product
is prohibited by law.
CHAPTER 3. FLOWCHART
[1] Troubleshooting
3 – 1
( 1 ) Focus error system check.
Although a CD or DVD is inserted and the cover is closed,
" NO DISC " is displayed.
NoCheck incoming servo supply ( U5 ).
Yes
2. Is it Open / Close function OK ?NoCheck Open / Close switch.
Yes
3. Is Sled able to move to inner ?NoCheck Sled circuit, A5888 ( Pin 23 ).
Yes
4. Is the laser lit ?NoCheck Laser circuit, CD / DVD Laser circuits.
Yes
5. Does the focus ( lens ) move up and down ?NoCheck U5 ( Pin 18 ) and U10 ( Pin 13and 14).
Yes
6. Is the turntable rotating ?NoCheck U5 ( Pin 13 ) and U10 ( Pin 11 and 12 ).
Check Spindle motor.
Yes
7. Is it the CD / DVD Laser driver circuit OK ?
NoCheck the CD / DVD Laser driver ( Q12, Q13, Q14 &
Q15 ) peripheral circuit and U5 ( Pin 10 and 11).
( 2 ) Both Video and Audio do not operate normally
The RF waveform is normal and the time is
displayed normally, but no sound is produced.
Or the sound has dropouts.
1. Put a disc on DISC compartment.
Yes
2. When playback starts does the disc initialise ?NoRepeat steps as Focus errror system check occurred.
Yes
3. Are the RF signal level output from U5 NoIs the objective lens of optical pickups clean ?
pin no 168 normal?
( Waveform drawing Figure 1 for CD and
Figure 2 for DVD )
Yes
Yes
4. Replace Servo PWB.NoReplace optical pickup mechanism unit.
Yes
1. Does the servo supply is + 3.3 V?
HT-CN9900DVW
3 – 2
HT-CN9900DVW
5. Does the supply shows as + 3.3 V / + 1.8 V?
No
Check supply ( U1
2
Pin No.2 / U12 Pin No.2 ).
Yes
6. Is Reset function OK?NoCheck U5 pin no 44.
( Waveform drawing Figure 3 )
Yes
7. Is clock frequency shows 27MHz?NoCheck clock circuit ( Y2 , C169 , C170 )
Yes
1
8. Is the Flash is normal?NoCheck U5 pin no
4.
Yes
9. Is the SDRAM is normal?NoCheck U4 pin no 38.
Yes
10. Is the DSP is normal?NoCheck U5 Data Bus.
Yes
11. Is the Audio out is normal?
No
Check Audio out circuit ( U5 Pin No.158 and 160 ).
Yes
12. Is the Video out is normal?No
1
1
U5 168
U5 44
RF
Figure 1
1
3
RESET
Check Video out circuit ( U5 Pin no 139 )
1
2
U5 168
RF
Figure 2
Figure 3
3 – 3
CHAPTER 4. MAJOR PART DRAWING
Pin
No.
NAME
Alternative
Function
TypeDescription
Analog Interface ( 66 Pins )
167 RFIPAnalog InputAC coupled DVD RF signal input RFIP
168RFINOPOUT Analog InputAC coupled DVD RF signal input RFIN
169RFGOPINPAnalog InputMain beam, RF AC input path
170RFHOPINNAnalog InputMain beam, RF AC input path
171RFAAnalog InputRF main beam input A
172RFBAnalog InputRF main beam input B
173RFCAnalog InputRF main beam input C
174RFDAnalog InputRF main beam input D
175RFEAnalog InputRF sub beam input E
176RFFAnalog InputRF sub beam input F
1AVDD18_2Analog PowerAnalog 1.8V power
2AVDD33_1Analog PowerAnalog 3.3V power
3XTALIInput27MHz crystal input
4XTALOOutput27MHz crystal output
5AGND33Analog GroundAnalog 3.3V Ground
6V20Analog OutputReference Voltage 2.0V
7V14Analog OutputReference Voltage 1.4V
8REXTGPO5
Analog Input /
Digital Output
1. Current reference input. It generates reference current for RF
path. Connect an external 15K resistor to this pin and AVSS.
2. GPO5
9MDI1Analog InputLaser power monitor input
10LDO1Analog OutputLaser driver output
11LDO2Analog OutputLaser driver output
12AVDD33_2Analog PowerAnalog 3.3V power
13DMOAnalog OutputDisc motor control output. PWM output
14FMOAnalog OutputFeed motor control. PWM output
15TRAY_OPENAnalog OutputTray PWM output / Tray open output
16TRAY_CLOSEAnalog OutputTray PWM output / Tray close output
17TROAnalog OutputTracking servo output. PDM output of tracking servo compensator.
18FOOAnalog OutputTracking servo output. PDM output of tracking servo compensator.
19FGGPIO2Analog Output
1) Motor Hall sensor input
2) GPIO2
20USB_DPAnalog InoutUSB port DPLUS analog pin
21USB_DMAnalog InoutUSB port DMINUS analog pin
22VDD33_USBUSB PowerUSB Power pin 3.3V
23VSS33_USBUSB GroundUSB Ground pin 3.3V
24PAD_VRTAnalog InoutUSB generating reference current
25VDD18_USBUSB PowerUSB Power pin 1.8V
112AGND33_VPLLAnalog GroundAnalog 3.3V Ground
113EXT_RESAnalog InputExternal Resistor for HDMi ™ TX
[1] Function Table Of IC
U5 VHIMT1389GF-1Q : High Definition DVD Player SOC with HDMi (1/9)
HT-CN9900DVW
4 – 1
HT-CN9900DVW
U5 VHIMT1389GF-1Q : High Definition DVD Player SOC with HDMi (2/9)
Pin
No.
114AVDD33_VPLLAnalog Power3.3V VDD for HDMi ™ TX
115AGND33_TXAnalog GroundAnalog 3.3V Ground
116AGND18_TX2Analog GroundAnalog 1.8V Ground
117TXCNAnalog OutputNegative TX CLK
118TXCPAnalog OutputPositive TX CLK
119AVDD18_TX1Analog Power1.8V VDD for HDMi ™ TX
120TX0NAnalog OutputNegative TX CH0
121TX0PAnalog OutputPositive TX CH0
122AGND18_TX1Analog Power1.8V GND for HDMi ™ TX
123TX1NAnalog OutputNegative TX CH1
124TX1PAnalog OutputPositive TX CH1
125AGND18_TX0Analog Power1.8V VDD for HDMi ™ TX
126TX2NAnalog OutputNegative TX CH1
127TX2PAnalog OutputPositive TX CH2
128AGND18_TXDAnalog GroundAnalog 1.8V Ground
134DACVDDCPower3.3V Power pin for video DAC circuitry
135VREFGPIO14
136FSAnalog Full scale adjustment (suggest to use 560 ohm)
137DACVSSCAnalog GroundAnalog 3.3V Ground
138CVBSAnalog Analog CVBS or C
139DACVDDBPower3.3V Power pin for video DAC circuitry
140AGNDCAnalog GroundAnalog 3.3V Ground
141DACVDDAPower3.3V Power pin for video DAC circuitry
142Y / GAnalog Green, Y, SY or CVBS
143AGNDBAnalog GroundAnalog 3.3V Ground
144B / CB / PBAnalog Blue, CB / PB or SC
145R / CR / PRAnalog Red, CR / PR, CVBS or SY
146AADVSSAnalog GroundAnalog 3.3V Ground
147AKIN2GPIO19Analog
148ADVCMGPIO20Analog
149AKIN1GPIO21Analog
150AADVDDPower3.3V Power pin for 2ch audio ADC circuitry
151APLLVDD3Power3.3V Power pin for audio clock circuitry