Sony MHC-V83D Service manual

2020/06/2222:32:42(GMT+09:00)
SERVICE MANUAL
Conditions of Use:
(1) Please use this information only for the purpose of performing repair, maintenance and/or confi guration services of the Sony products (hereinafter the “Repair services”) under the
service agreement entered into with the Sony group company (hereinafter the “Service agreement”). Using this information for any purpose other than the purpose described foregoing is forbidden.
(2) Only the Authorized Servicer’s offi cers, employees or subcontractors (including their offi cers and employees) whose duties justify a need-to-know and who have agreed to hold
confi dential this information (collectively hereinafter the “Permitted users”) are permitted to access and use this information. To disclose or disseminate to any person other than the
Permitted users is forbidden. (3) Destroy or erase any and all portion of this information promptly in an irrecoverable and secure fashion after achieving the purpose described in Section (1) above. (4) Do not copy, replicate, reproduce, alter, translate, transmit, sell, lease, or distribute this information in whole or in part without the prior written permission of the author. (Notwithstanding foregoing, it is permitted to copy and distribute this information to the Permitted users.) (5) Please notify immediately any leakage, loss, theft, misappropriation, or other misuse of this information by e-mail to the following address: somk-gcs-tissnexim-adm@jp.sony.com (6) In addition to the above, the terms and conditions of the Service agreement shall be applied to using this information.
Revision of Information:
This information may be changed or updated at any time without any prior notice. Please confi rm that this information is up-to-date before using it.
MHC-V83D
Note:
Sony CONFIDENTIAL
For Authorized Servicer
9-930-605-01
2020F80-1
2020.06
©
Sony EMCS (Malaysia) PG Tec
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MHC-V83D
SERVICE MANUAL
Ver. 1.0 2020.06
AEP Model
E Model
Model Name Using Similar Mechanism MHC-V82D
DVD Mechanism Type CDM90-DVBU204//M
Optical Pick-up Name CMS-S76RFS7GP
Speaker section
Speaker system: 5-way, Double Bass Refl ex Speaker unit: Tweeter L/R Front: 40 mm, horn type Tweeter L/R Rear: 40 mm, horn type Midrange L/R (Upper): 100 mm, cone type Midrange L/R (Lower): 80 mm, horn type Woofer: 300 mm, cone type
Inputs
(TV) AUDIO IN: Voltage 2 V, impedance 47 kilohms (TV) ARC: Supported audio signal: 2-channel Linear PCM MIC1: Sensitivity 1 mV, impedance 10 kilohms MIC2/GUITAR: Sensitivity 1 mV, impedance 10 kilohms (when guitar mode is turned off ) Sensitivity 200 mV, impedance 250 kilohms (when guitar mode is turned on)
Outputs
HDMI OUT (TV) ARC: Supported audio signal: 2-channel Linear PCM (up to 48 kHz), Dolby Digital
HDMI section
Connector: Type A (19 pin)
Disc player section
System: Compact disc and digital audio and video system
SPECIFICATIONS
Laser Diode Properties Emission Duration: Continuous Wavelength: 790 nm Laser Output*: Less than 44.6 μW * This output is the value measurement
at a distance of 100 mm from the objective lens surface on the Optical
Pick-up Block with 7 mm aperture. Frequency response: 20 Hz – 20 kHz Video color system format: Latin American models: NTSC Other models: NTSC and PAL
USB section
Supported USB device: Mass Storage Class Maximum current: 1 A
(USB) port:
Type A
FM tuner section (Except AEP model)
FM stereo, FM superheterodyne tuner Antenna: FM lead antenna (aerial) Tuning range: BR model: 76,0 MHz – 108,0 MHz (100 kHz step) Other models:
87.5 MHz – 108.0 MHz (50 kHz step)
DAB/DAB+/FM tuner section (AEP model)
Antenna: DAB/FM lead antenna (aerial) Frequency range: DAB/DAB+ (Band-III): 174.928 (5A) MHz – 239.200 (13F) MHz FM: 87.5 MHz – 108.0 MHz (50 kHz step)
DAB/DAB+ frequency table (Band-III)
Frequency Label
174.928 MHz 5A
176.640 MHz 5B
178.352 MHz 5C
180.064 MHz 5D
181.936 MHz 6A
183.648 MHz 6B
185.360 MHz 6C
187.072 MHz 6D
188.928 MHz 7A
190.640 MHz 7B
192.352 MHz 7C
194.064 MHz 7D
195.936 MHz 8A
197.648 MHz 8B
199.360 MHz 8C
201.072 MHz 8D
202.928 MHz 9A
204.640 MHz 9B
206.352 MHz 9C
208.064 MHz 9D
209.936 MHz 10A
211.648 MHz 10B
213.360 MHz 10C
215.072 MHz 10D
216.928 MHz 11A
218.640 MHz 11B
220.352 MHz 11C
222.064 MHz 11D
223.936 MHz 12A
225.648 MHz 12B
227.360 MHz 12C
229.072 MHz 12D
230.784 MHz 13A
232.496 MHz 13B
234.208 MHz 13C
235.776 MHz 13D
237.488 MHz 13E
239.200 MHz 13F
BLUETOOTH section
Communication system: BLUETOOTH Standard version 4.2 Output: BLUETOOTH Standard Power Class 2 Maximum output power: <9.5 dBm Maximum number of devices to be registered: 8 devices Maximum number of simultaneous connection (Multipoint): 3 devices Maximum communication range: Line of sight approx. 10 m Frequency band:
2.4 GHz band (2.4000 GHz –
2.4835 GHz) Modulation method: FHSS (Freq Hopping Spread Spectrum) Compatible BLUETOOTH profiles2):
A2DP (Advanced Audio Distribution Profile) AVRCP (Audio Video Remote Control Profile) Supported codecs: SBC (Subband Codec) AAC (Advanced Audio Coding) LDAC
1)
The actual range will vary depending on
factors such as obstacles between devices, magnetic fields around a microwave oven, static electricity, reception sensitivity, antenna’s performance, operating system, software application, etc.
2)
BLUETOOTH standard profiles
indicate the purpose of BLUETOOTH communication between devices.
NFC section
Frequency band:
13.56 MHz
1)
Continued on next page
Sony CONFIDENTIAL
For Authorized Servicer
HOME AUDIO SYSTEM
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MHC-V83D
Sony CONFIDENTIAL
For Authorized Servicer
Supported audio formats
Supported bit rate and sampling frequencies: MP3: 32/44.1/48 kHz, 32 kbps – 320 kbps (VBR) AAC:
44.1 kHz, 48 kbps – 320 kbps (CBR/VBR) WMA:
44.1 kHz, 48 kbps – 192 kbps (CBR/VBR) WAV:
44.1/48 kHz (16 bit)
Supported video formats
Xvid: Video codec: Xvid video Bit rate: 4.854 Mbps (MAX) Resolution/Frame rate: 720 × 480, 30 fps 720 × 576, 25 fps (except for Latin American models) Audio codec: MP3 MPEG4: File format: MP4 File Format Video codec: MPEG4 Simple Profile (AVC is not compatible.) Bit rate: 4 Mbps Resolution/Frame rate: 720 × 480, 30 fps 720 × 576, 25 fps (except for Latin American models) Audio codec: AAC-LC (HE-AAC is not compatible.) DRM: Not compatible
General
Power requirements: AC 120 V – 240 V, 50/60 Hz Power consumption: 195 W Power consumption (at the Power Saving
mode):
0.5 W (when “BT STBY” is set to “OFF” and [CONTROL FOR HDMI] is set to [OFF])
2 W* (when “BT STBY” is set to “ON” and [CONTROL FOR HDMI] is set to [ON]) Dimensions (W/H/D) (Approx.): 428 mm × 1,051 mm × 370 mm Mass (Approx.):
23.4 kg
Operating temperature: 5 °C – 35 °C * The power consumption of the system
will be less than 0.5 W when there is no HDMI connection and “BT STBY” is set to “OFF”.
Supplied accessories (Except AEP model)
Remote control (RMT-AM420U) (DC 3 V) (1)
R03 (DC 1.5 V) (size AAA)
batteries (2)
FM lead antenna (aerial) (1) AC power cord (mains lead) (1) AC plug adaptor* (1) (supplied only
for certain areas)
* This plug adaptor is not for the use
in Chile, Paraguay and Uruguay. Use this plug adaptor in the countries/ regions where it is necessary.
Supplied accessories (AEP model)
Remote control (RMT-AM420U) (DC 3 V) (1)
R03 (DC 1.5 V) (size AAA)
batteries (2) DAB/FM lead antenna (aerial) (1) AC power cord (mains lead) (2)
For the customers in AEP:
Use the AC power cord (mains lead) (A). For safety reasons, the AC power cord
(mains lead) (B) is not intended for the above countries/regions and shall therefore not be used there.
For customers in other countries/regions: Use the AC power cord (mains lead) (B).
(A)
(B)
Design and specifications are subject to change without notice.
Compatible iPhone/iPod models
iPhone 11 Pro Max, iPhone 11 Pro, iPhone 11, iPhone XS Max, iPhone XS, iPhone XR, iPhone X, iPhone 8 Plus, iPhone 8, iPhone 7 Plus, iPhone 7, iPhone SE, iPhone 6s Plus, iPhone 6s, iPhone 6 Plus, iPhone 6, iPod touch (7th generation), iPod touch (6th generation) The system is compatible with iOS 11.0 or later.
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam­aged by heat.
FLEXIBLE CIRCUIT BOARD REPAIRING
• Keep the temperature of the soldering iron around 270 °C during repairing.
• Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).
• Be careful not to apply force on the conductor when soldering or unsoldering.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC leakage. Check leakage as described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOM that is suitable. Nearly all battery operated digital multimeters that have a 2V AC range are suitable. (See Fig. A)
To Exposed Metal Parts on Set
AC
1.5 kΩ0.15 μF
voltmeter (0.75 V)
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY-RELATED COMPONENT WARNING!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
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MHC-V83D
Sony CONFIDENTIAL
For Authorized Servicer

TABLE OF CONTENTS

1. SERVICING NOTES
............................................. 5
2. DISASSEMBLY
2-1. Disassembly Flow ........................................................... 11
2-2. Side Panel H-L, H-R Section .......................................... 12
2-3. Top-H Panel Section ....................................................... 13
2-4. Loading-H Panel Section ................................................ 14
2-5. DAB Assembly_UART (AEP),
Rear Panel ST-H Section................................................. 15
2-6. CDM, DC Fan (3500RPM/200MM) Section ................. 16
2-7. CDM90-DVBU204//M ................................................... 17
2-8. Service Optical Device (7G), Flexible Flat Cable .......... 18
2-9. Chassis Section ............................................................... 19
2-10. SMPS, MOTHERBOARD and LED HUB Board .......... 20
2-11. Mid Horn Rear-H Section ............................................... 21
2-12. Front Panel Section ......................................................... 22
2-13. Front Panel ST-H Section, Front Panel SW Section ....... 23
2-14. Rear Cabinet Section ...................................................... 24
2-15. Loudspeaker (30cm) (Woofer) (SP9) .............................. 25
3. TEST MODE ............................................................ 26
4. ELECTRICAL CHECK ......................................... 27
5. TROUBLESHOOTING .......................................... 28
6. DIAGRAMS
6-1. Block Diagram
- RS SERVO, USB, TOUCH, HDMI Section - .............. 35
6-2. Block Diagram - MAIN Section - ................................... 36
6-3. Block Diagram - AMP Section - ..................................... 37
6-4. Block Diagram
- PANEL, POWER SUPPLY Section - ........................... 38
6-5. Block Diagram - SMPS Section - ................................... 39
6-6. Printed Wiring Board - MOTHERBOARD Board
(Component Side) - ......................................................... 41
6-7. Printed Wiring Board - MOTHERBOARD Board
(Conductor Side) - .......................................................... 42
6-8. Printed Wiring Board
- SENSOR Board (Component Side) - ........................... 43
6-9. Printed Wiring Board
- SENSOR Board (Conductor Side) - ............................. 44
6-10. Printed Wiring Board - SMPS Board - ........................... 45
6-11. Printed Wiring Board - VFD Board - ............................. 46
6-12. Printed Wiring Board - MIC-USB Board - ..................... 47
6-13. Printed Wiring Board - POWER-KEY Board - .............. 48
6-14. Printed Wiring Board
- LED HUB Board (Component Side) - ......................... 49
6-15. Printed Wiring Board
- LED HUB Board (Conductor Side) - ........................... 50
6-16. Printed Wiring Board - DAB Board (AEP) - .................. 51
6-17. Printed Wiring Board - PARTY LED-LR Board - .......... 51
6-18. Printed Wiring Board - EXTENSION Board - ............... 52
6-19. Printed Wiring Board - PARTY RGB-FR Board - .......... 52
6-20. Printed Wiring Board - PARTY RGB-BK Board - ......... 52
6-21. Printed Wiring Board - SW LED-L Board - ................... 53
6-22. Printed Wiring Board - SW LED-R Board - ................... 53
6-23. Printed Wiring Board - IR Board - .................................. 53
6-24. Printed Wiring Board - HORN LED Board - ................. 54
6-25. Printed Wiring Board - MID LED Board - ..................... 54
6-26. Printed Wiring Board - NFC Board - .............................. 54
7. EXPLODED VIEWS
7-1. Loading-H Panel Section ................................................ 55
7-2. DAB Assembly_UART (AEP) Section ......................... 56
7-3. SMPS Board Section ...................................................... 57
7-4. Chassis Section ............................................................... 58
7-5. Mid Horn Rear-H Section ............................................... 59
7-6. Loudspeaker (10cm) Section .......................................... 60
7-7. Front Panel ST-H Section ............................................... 61
7-8. Front Panel SW Section .................................................. 62
7-9. Loudspeaker (30cm) Section .......................................... 63
7-10. Rear Cabinet Section ...................................................... 64
7-11. Side Panel H-L, H-R Section .......................................... 65
7-12. Top-H Panel Section ....................................................... 66
7-13. Rear Panel ST-H Section................................................. 67
7-14. CDM Section .................................................................. 68
7-15. DVD Mechanism Section (CDM90-DVBU204//M) ...... 69
8. ELECTRICAL PARTS LIST .............................. 70
Accessories are listed in the last part of the electrical parts list.
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MHC-V83D
SECTION 1
SECTION 1

SERVICING NOTES

SERVICING NOTES
Sony CONFIDENTIAL
For Authorized Servicer
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the leadfree mark (LF) indicating the solder contains no lead. (Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size)
: LEAD FREE MARK
Unleaded solder has the following characteristics.
• Unleaded solder melts at a temperature about 40 °C higher than ordinary solder. Ordinary soldering irons can be used but the iron tip has to be applied to the solder joint for a slightly longer time. Soldering irons using a temperature regulator should be set to about 350 °C.
Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!
• Strong viscosity Unleaded solder is more viscous (sticky, less prone to fl ow) than ordinary solder so use caution not to let solder bridges occur such as on IC pins, etc.
• Usable with ordinary solder It is best to use only unleaded solder but unleaded solder may also be added to ordinary solder.
CAUTION
Use of controls or adjustments or performance of procedures other than those specifi ed herein may result in hazardous radiation exposure.
MODEL IDENTIFICATION
– Rear view –
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suff er electrostatic break-down because of the potential diff erence generated by the charged electrostatic load, etc. on clothing and the human body. During repair, pay attention to electrostatic break-down and also use the procedure in the printed matter which is included in the repair parts. The fl exible board is easily damaged and should be handled with care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused on the disc refl ective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe from more than 30 cm away from the objective lens.
CAUTION
Caution – use of controls or adjustments or performance of procedures other than those specifi ed herein may result in hazardous radiation exposure.
This appliance is classifi ed as a CLASS 1 LASER product under IEC 60825-1:2014.
When unpacking the carton, be sure that two people handle the unit. Dropping the unit may cause personal injury and/or property damage.
For customers in EA
This appliance is classifi ed as a CLASS 1 LASER product under IEC 60825-1:2007 and IEC 60825-1:2014. This marking is located on the rear exterior.
MODEL NUMBER LABEL
MHC-V83D
MODEL NO. :
Destination Code
PART No.
Model Part No.
LA9
AEP
E4
E12
RU
MY
AR
TH
EA
5-014-073-0[]
5-014-073-1[]
5-014-073-4[]
5-014-073-5[]
5-014-073-7[]
5-014-073-8[]
5-014-073-9[]
5-014-085-1[]
5-014-085-3[]
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Sony CONFIDENTIAL
For Authorized Servicer
DESTINATION ABBREVIATIONS
The following abbreviations for model destinations are used in this service manual.
• Abbreviation AR : Argentina model E4 : African model E12 : 220-240 V AC area in E model EA : Saudi Arabia model LA9 : Latin-American model MY : Malaysia model RU : Russian model TH : Thai model
DESTINATION SETTING METHOD
The destination information isn’t written in the MOTHERBOARD board for the service. The message “PLEASE SET DEST” is always displayed during sys­tem is turn on. Therefore, when the MOTHERBOARD board is replaced, be sure to perform the destination setting (Important work).
Note 1: The initial setting destination of the MOTHERBOARD board for
the service is temporary set as “LATIN”. The message “DEST ERR” is displayed on the screen display panel.
Note 2: When distinguishing the destination of the product, refer to the
“MODEL IDENTIFICATION” on page 5.
Note 3: If destination setting isn’t performed, it is possibility to occur the
defect to each operation of this unit.
Note 4: Destination would be locked if it has changed for 5 times.
Procedure:
1. Touch two touch keys of the [FIESTA] and [TUNING + >]
simultaneously for 5 seconds during the demo mode.
2. It enters the destination setting mode, the message “D XXXXX” is displayed on the screen display panel.
Note 5: If the message “DESTLOCK” is displayed on the screen display
panel, touch the [N] touch key to release from this mode. Because the destination is locked, and it cannot change the destination.
3. Touch [TUNING + >] / [TUNING .] touch key to select the destination based on the set’s country.
Screen display
Destination code
Country
“D ASIA SP6, TH1 Southeast Asia countries
“D INDIA E12 India
“D ME AFC E3, E93, E4,
Middle East & Africa countries
SA2, EA3
“D OCEANI
AU1 Australia & New Zealand
“D JAPAN J1 Japan
“D BRAZIL
“D N AME
BR1 Brazil
UC2, CA2 America & Canada
“D LATIN LA9, AR2 Central & South America
countries (except Brazil)
“D RUSSIA RU1 Russia & CIS country
“D EUROPE
CEL, CEK Europe countries
(except CIS country)
4. Touch [
N] touch key to confi rm the selection.
5. “RESET” appears on the screen display panel. After that, “SONY” appears on the screen display panel. The system automatically turn on and off once. Please be sure that the system stay at demo mode fi nally before switch off the power supply.
6. Mode in “MODEL, DESTINATION AND VERSION DISPLAY MODE” on page 26 again to confi rm on the model & destination.
NOTE OF REPLACEMENT OF THE SENSOR BOARD
When the SENSOR board is defective, exchange the TOP PANEL ASSY SERVICE (V83D).
NOTE OF REPLACEMENT OF THE MS-476 BOARD
When the MS-476 board is defective, exchange the entire LOADING COMPLETE ASSY (T).
TEST DISCS
Use following TEST DISC when this unit confi rms the operation and checks it.
• For CD
Part No. Description
3-702-101-01 DISC (YEDS-18), TEST 4-225-203-01 DISC (PATD-012), TEST J-2501-307-A DISC (HLX-A1), TEST
• For DVD SL (Single Layer)
Part No. Description
J-6090-069-A DISC (HLX-503), TEST (NTSC) J-6090-088-A DISC (HLX-504), TEST (NTSC) J-2501-305-A DISC (HLX-513), TEST (NTSC) J-6090-077-A DISC (HLX-506), TEST (PAL)
• For DVD DL (Double Layer)
Part No. Description
J-6090-071-A DISC (HLX-501), TEST (NTSC) J-6090-089-A DISC (HLX-505), TEST (NTSC) J-2501-306-A DISC (HLX-514), TEST (NTSC) J-6090-078-A DISC (HLX-507), TEST (PAL)
RELEASING THE DISC TRAY LOCK
The disc tray lock function for the antitheft of sample disc in the shop is equipped. It can release the lock function in the following procedure.
Releasing Procedure:
1. Press the [1] button to turn the power on.
2. Touch the [FUNCTION] touch key to select the DVD/CD func­tion.
3. Touch [MEGA BASS] touch key and [VOCAL FADER/VOICE CHANGER] touch key simultaneously for three seconds.
4. The message “UNLOCKED” is displayed on the screen display panel and the disc tray is unlocked.
Note: When “LOCKED” is displayed on the screen display panel, the
disc tray lock is not released by turning the power on/off with the [1] button.
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IF ERROR CODE AND “CHECK MANUAL” FLASHES ON THE DISPLAY
See the following table for the corrective action.
Error code Corrective action
“PROTECT2” Contact your nearest Sony dealer.
“PROTECT3”/ “PROTECT4”/ “PROTECT6”
Protect Type Description:
X (Error Code) Description
2 Defect of thermistor IC or charging circuit
3 • There is possibility of over current happen
4 • DC appears in SP terminal by defect of
6 • There is possibility of DC FAN is blocked
Immediately unplug the AC power cord (mains lead), and check if anything is blocking the ventilation openings of the unit. After you have checked and found no problems, reconnect the AC power cord (mains lead), and turn on the system. If the issue persists, contact your nearest Sony dealer.
used by SPM (Sound Pressure Management) system.
at speaker output or speaker damage (short­ed).
• Unusual heat up of AMP IC by improper assembly of heatsink or lack of thermal compound.
• Under voltage Protection (no supply to AMP IC when power ON).
AMP IC.
or damaged.
• Defect of DC FAN driver circuit.
Sony CONFIDENTIAL
For Authorized Servicer
SELF-DIAGNOSIS FUNCTION
When the self-diagnosis function is activated, a service number ap­pears on the TV screen or the display. The service number consists of an alphabet and numerals (e.g. C 13 50). See the following table for the cause and corrective action.
First 3 characters of the service number
C 13 This disc is dirty.
C 31 The disc is not inserted correctly.
E XX (XX is a number)
Cause and corrective action
• Clean the disc with a soft cloth.
• Turn off the system, then turn it back on again.
Then re-insert the disc correctly.
To prevent a malfunction, the system has performed the self-diagnosis function.
• Contact your nearest Sony dealer or local authorized Sony service facility and give the 5-character service number.
Example: E 61 10
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HOW TO OPEN THE TRAY WHEN POWER SWITCH TURN OFF
Note 1: After the side panel H-L, H-R section and top-H panel section are removed, this work is done. Note 2: Please prepare the thin wire (clip etc. processed to the length of 25mm, diameter 1.7mm).
1 Remove the side panel H-L, H-R section. 2 Remove the top-H panel section.
(Illustration of disassembly is omitted.)
Sony CONFIDENTIAL
For Authorized Servicer
3 Insert the clip etc.
– Left view –
Insert the clip etc. processed to the length of 25mm, diameter 1.7mm in the hole on the side of the CDM and push.
25mm, diameter
1.7mm
Note: Push after it inserts it
in this hole well.
hole
DVD mechanism deck
4
tray
– Top view –
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CAPACITOR ELECTRICAL DISCHARGE PROCESSING
When removing the SMPS board and MOTHERBOARD board, be sure to perform the discharge process by referring below procedure. Remove SMPS board fi rst follow by MOTHERBOARD board.
Note: Be sure to discharge using a resistor of 500~800 .
SMPS Board (Conductor side view)
1. Disconnect all the wires and FFC which connected to the SMPS board (avoid touching any component).
2. Unscrew the SMPS board.
3. Pulling up the wire (avoid touching any component) to lift up the SMPS board.
4. Flip the SMPS board to conductor side and perform discharge at terminal of C6301, C6322, C6534, C6558 and C6559 for 10 seconds each.
Sony CONFIDENTIAL
For Authorized Servicer
800 :/5 W
R
C6301
C6322
800 :/5 W
R
800 :/5 W
R
800 :/5 W
R
C6559
C6558
C6534
MOTHERBOARD Board (Conductor side view)
1. Disconnect all the wires and FFC which connected to the MOTHERBOARD board (avoid touching any component).
2. Unscrew the MOTHERBOARD board.
3. Holding the both edge (avoid touching any component) to lift up the MOTHERBOARD board.
4. Flip the MOTHERBOARD board to conductor side and perform discharge at terminal of C3662 for 10 seconds.
800 :/5 W
R
C3662
800 :/5 W
R
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SERVICE POSITION
Sony CONFIDENTIAL
For Authorized Servicer
VFD board
stand
MIC-USB board
SMPS board
POWER-KEY board
CDM90-DVBU204//M
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MHC-V83D
Note: Disassemble the unit in the order as shown below.

2-1. DISASSEMBLY FLOW

SET
2-2. SIDE PANEL H-L, H-R SECTION (Page 12)
2-3. TOP-H PANEL SECTION (Page 13)
2-4. LOADING-H PANEL SECTION (Page 14)
2-5. DAB ASSEMBLY_UART (AEP), REAR PANEL ST-H SECTION (Page 15)
SECTION 2

DISASSEMBLY

Sony CONFIDENTIAL
For Authorized Servicer
JIG When disassembling the unit, use the following jig for speaker removal.
Part No. Description J-2501-238-A JIG FOR SPEAKER REMOVAL
2-6. CDM, DC FAN (3500RPM/200MM) SECTION (Page 16)
2-7. CDM90-DVBU204//M (Page 17)
2-8. SERVICE OPTICAL DEVICE (7G), FLEXIBLE FLAT CABLE (Page 18)
2-9. CHASSIS SECTION (Page 19)
2-10. SMPS, MOTHERBOARD AND LED HUB BOARD (Page 20)
2-11. MID HORN REAR-H SECTION (Page 21)
2-12. FRONT PANEL SECTION (Page 22)
11
2-13. FRONT PANEL ST-H SECTION, FRONT PANEL SW SECTION (Page 23)
2-14. REAR CABINET SECTION (Page 24)
2-15. LOUDSPEAKER (30CM) (WOOFER) (SP9) (Page 25)
SYSSET
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MHC-V83D
Note: Follow the disassembly procedure in the numerical order given.

2-2. SIDE PANEL H-L, H-R SECTION

1 four screws (tapping (flat head))
1 three screws (tapping (flat head))
Sony CONFIDENTIAL
For Authorized Servicer
4 side panel H-L section
3
1 two screws
(tapping (flat head))
2 flexible flat cable (9 core) (CN9501)
7
6 flexible flat
cable (9 core) (CN8508)
8 side panel H-R section
5 four screws (tapping (flat head))
5 three screws (tapping (flat head))
5 two screws (tapping (flat head))
12
SYSSET
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MHC-V83D

2-3. TOP-H PANEL SECTION

4 flexible flat cable (7 core) (CN120)
3 flexible flat cable (25 core) (CN126)
6 CN451 (5P)
1 two screws
(+BVTP 3 u 8)
8 flexible flat cable (4 core) (CN8451)
0 top-H panel section
5 flexible flat
cable (9 core) (CN8200)
7 one screw
9
(+BVTP 3 u 8)
A
2 two screws
(tapping)
:LUHVHWWLQJ
MIC-USB board
MOTHERBOARD board
Sony CONFIDENTIAL
For Authorized Servicer
CDM bracket
behind CDM bracket
rear side
LED HUB board
:LUHVHWWLQJ
IR board
filament tape
top side
A
1 two screws
(+BVTP 3 u 8)
:LUHVHWWLQJ
MOTHERBOARD board
flexible flat cable (9 core)
rear side
hook
LED HUB board
13
SYSSET
2020/06/2222:32:42(GMT+09:00)
MHC-V83D

2-4. LOADING-H PANEL SECTION

Sony CONFIDENTIAL
For Authorized Servicer
– Left view –
Insert the clip etc. processed to the length of 25mm, diameter 1.7mm in the hole on the side of the CDM and push.
25mm, diameter
1.7mm
Note: Push after it inserts it
in this hole well.
hole
DVD mechanism deck
tray
– Top view –
1 Insert the clip etc.
3 four claws
4 panel,
loading-H
2 Draw out the tray.
14
SYSSET
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MHC-V83D

2-5. DAB ASSEMBLY_UART (AEP), REAR PANEL ST-H SECTION

Sony CONFIDENTIAL
For Authorized Servicer
:LUHVHWWLQJ
Push the protrusion, and remove the terminal (wide side) [blue/black].
loudspeaker (4cm) (tweeter) (R-CH) (SP4)
protrusion
Push the protrusion, and remove the terminal (narrow side) [blue].
top side
qa terminal (wide side) [blue/black]
qa terminal (narrow side) [blue]
qd rear panel ST-H section
:LUHVHWWLQJ
clamp
fan, DC
6 three screws (tapping)
7 two screws (tapping)
(AEP)
– Rear view –
(AEP)
3 two screws (+BVTP 3 u 8)
1 one screw (tapping)
2 cover, jack assy
8 one screw (+BVTP 3 u 8)
9 one screw (+B 3 u 6)
qs terminal
(wide side) [red/black]
qs terminal (narrow side) [red]
0 CN2001 (2P)
(AEP)
5 DAB assembly_UART
4 flexible flat cable (11 core) (CN600)
:LUHVHWWLQJ
Push the protrusion, and remove the terminal (wide side) [red/black].
protrusion
top side
loudspeaker (4cm) (tweeter) (L-CH) (SP8)
Push the protrusion, and remove the terminal (narrow side) [red].
15
SYSSET
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MHC-V83D

2-6. CDM, DC FAN (3500RPM/200MM) SECTION

Sony CONFIDENTIAL
For Authorized Servicer
qa bracket, fan (V83D)
qs DC fan (3500rpm/200mm)
4 CN2008 (3P)
5 two screws
(+BVTP 3 u 8)
7 two screws (+BVTP 3 u 8)
qd CDM section
9 clamp
(N)
6 Remove the CDM section in the direction of the arrow.
1 CN402 (4P)
2 flexible flat cable
(5 core) (CN303)
3 flexible flat cable (24 core) (CN302)
8 one screw (+BVTP 3 u 8)
0 two screws (+BVTP 3 u 8)
:LUHVHWWLQJ
DC fan (3500rpm/200mm)
bracket, fan (V83D)
clamp (N)
16
SYSSET
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MHC-V83D

2-7. CDM90-DVBU204//M

1 four screws (+BVTP 3 u 8)
6 CDM90-DVBU204//M
Sony CONFIDENTIAL
For Authorized Servicer
5 Draw wire out of the hole in CDM bracket section.
7 CDM bracket section
3 core, ferrite
2 cushion, saranet
(30 u 50)
4 Draw two wires out of the hole in CDM bracket section.
17
SYSSET
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MHC-V83D

2-8. SERVICE OPTICAL DEVICE (7G), FLEXIBLE FLAT CABLE

1 two screws (+BVTP 3 u 8)
Sony CONFIDENTIAL
For Authorized Servicer
2 two claws
2 two claws
8 four insulator screws
qd service, optical
device (7G)
qa insulator
7 belt
4 Insert the thin
wire (clip etc.).
3 chuck holder assy (T)
qg filament tape
2 two claws
qa insulator
qh flexible flat cable
(5 core)
qa insulator
qk holder, FFC
9
qs
ql flexible flat cable
(24 core)
qj
0 connector
qf base, lo assy
5
6 tray
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This illustration sees the loading assy (T) from bottom side.
Note:
1 flexible flat cable (24 core)
loading assy (T)
terminal face
2 Through the hole
Under the guide (Fold area)
5 two claws
3 Through the hole
4
loading assy (T)
– Bottom view –
5 three claws
6 holder, FFC
7 flexible flat cable
(24 core)
9 filament tape
8 flexible flat cable
(5 core)
18
Under the guide
SYSSET
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MHC-V83D

2-9. CHASSIS SECTION

:LUHVHWWLQJ
MOTHERBOARD board
qd four screws (+BVTP 3 u 8)
qg chassis section
Sony CONFIDENTIAL
For Authorized Servicer
9 flexible flat cable (11 core) (CN9500)
qs Remove the wire from clamp (N)
rear side
:LUHVHWWLQJ
wire CN8507 (4P)
wire CN8504 (10P)
front side
wire CN8510 (5P)
LED HUB board
filament tape
B
2 CN8504
(10P)
C
B
C
qf
:LUHVHWWLQJ
chassis
hole
qa Draw out the wire from the hole.
rear side
0 CN6000 (2P)
8 CN3502 (2P)
7 CN2005 (4P)
19
3 filament tape
6 CN8511 (4P)
1 filament
tape
5 CN8507 (4P)
4 CN8510 (5P)
– Rear view –
SYSSET
2020/06/2222:32:42(GMT+09:00)
MHC-V83D

2-10. SMPS, MOTHERBOARD AND LED HUB BOARD

Note: When the MOTHERBOARD mounted pc board
is replaced, be sure to refer to “DESTINATION SETTING METHOD” on page 6.
3 four screws (+PWH 3 u 8 (SUMITITE))
3 one screw (+PWH 3 u 8 (SUMITITE))
Sony CONFIDENTIAL
For Authorized Servicer
qa heat sink (MB-H)
3 one screw
(+PWH 3 u 8 (SUMITITE))
4 clamp (N)
:LUHVHWWLQJ
MOTHERBOARD board
SMPS board
clamp (N)
front side
1 CN3501 (8P)
2 CN001 (11P)
0 three screws (+BVTP 3 u 8)
qj chassis
5 SMPS board
8 three screws
(+PWH 3 u 8 (SUMITITE))
8 one screw (+PWH 3 u 8 (SUMITITE))
9 clamp (N)
8 four screws (+PWH 3 u 8 (SUMITITE))
qs MOTHERBOARD board
7 flexible flat cable
(9 core) (CN101)
qh LED HUB board
:LUHVHWWLQJ
20
filament tape
%RWWRPYLHZ
flexible flat cable (11 core)
chassis
rear side
qf filament tape
qf filament tape
qf filament tape
6 CN002 (2P)
qd flexible flat cable (11 core) (CN8505)
qg two screws (+BVTP 3 u 8)
SYSSET
2020/06/2222:32:42(GMT+09:00)
MHC-V83D

2-11. MID HORN REAR-H SECTION

Sony CONFIDENTIAL
For Authorized Servicer
– Rear view –
2 one screw (+BVTP 3 u 10)
2 one screw (+BVTP 3 u 10)
1 four screws (tapping)
3 mid horn rear-H section
21
SYSSET
2020/06/2222:32:42(GMT+09:00)
MHC-V83D

2-12. FRONT PANEL SECTION

2 four screws (tapping)
5 All bosses are removed while moving jig in the direction of the arrow, and front panel section is removed.
4 Insert the jig into a space and slowly remove the front panel section.
Note 1: When using a jig, please work so as not to injure front panel section and speaker cabinet.
total eighteen bosses
Sony CONFIDENTIAL
For Authorized Servicer
1 two screws ((4 u 13) (TR-184A))
2 four screws (tapping)
5 All bosses are removed while moving jig in the direction of the arrow, and front panel section is removed.
4 Insert the jig into a space and slowly remove the front panel section.
Note 1: When using a jig, please work so as not to injure front panel section and speaker cabinet.
7 front panel section
Note 2: When installing the front panel
section, remove the used glue and use a new glue to fix the panel, front SW.
4 Insert the jig into a space and slowly remove the front panel section.
Note 1: When using a jig, please work so as not to injure front panel
3 two screws (tapping)
4 Insert the jig into a space and slowly remove the front panel section.
Note 1: When using a jig, please work so as not to injure front panel section and speaker cabinet.
section and speaker cabinet.
22
6 Remove the front panel in the direction of an arrow.
SYSSET
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