Sony HCD-GZR88D User manual

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
HCD-GZR88D/GZR99D
HCD-GZR99D: E2, E51,AR, MX Model
DVD DECK RECEIVER
HCD-GZR88D/GZR99D: E3, E4, E15, PH, SP Model
DVD RECEIVER
9-889-536-01
2009F04-1
© 2009.06
E Model
Ver. 1.0 2009.06
• HCD-GZR88D/GZR99D are the tuner,
deck, DVD and amplifier section
in MHC-GZR88D/GZR99D.
DVD
Section
Model Name Using Similar Mechanism HCD-GZR77D
DVD Mechanism Type CDM74HF-DVBU101
Optical Pick-up Name KHM-313CAB
Tape Deck
Section Model Name Using Similar Machanism HCD-GZR77D
Tape Transport Mechanism Type CWP42FR605
SPECIFICATIONS
Amplifier Section
The following measured at AC 127 V, 60 Hz (Mexican model)
The following measured at AC 120, 220, 240 V, 50/60 Hz (Other models)
MHC-GZR99D
Power output (rated): 135 W + 135 W
(at 6 Ω, 1 kHz, 1% THD, at LINK MODE)
RMS output power (reference)
Front speaker: 175 W + 175 W
(per channel at 8 Ω, 1 kHz, 10% THD)
Satellite speaker: 70 W + 70 W
(per channel at 24 Ω, 1 kHz, 10% THD)
Subwoofer: 210 W (at 6 Ω, 100 Hz, 10% THD)
MHC-GZR88D
Power output (rated): 125 W + 125 W
(at 6 Ω, 1 kHz, 1% THD, at LINK MODE)
RMS output power (reference)
Front speaker: 175 W + 175 W
(per channel at 8 Ω, 1 kHz, 10% THD)
Satellite speaker: 70 W + 70 W
(per channel at 24 Ω, 1 kHz, 10% THD)
– Continued on next page –
Photo: HCD-GZR99D: E2 model

HCD-GZR88D/GZR99D
2
SAFETY-RELATED COMPONET WARNING!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINE
WITH MARK 0ON 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.
Inputs
VIDEO/SAT VIDEO IN (phono jack):
1 Vp-p, 75 ohms
VIDEO/SATAUDIO IN L/R (phono jacks):
voltage 250/450 mV, impedance 47 kilohms
MIC 1/MIC 2 (phone jacks):
sensitivity 1 mV, impedance 10 kilohms
Outputs
VIDEO OUT (phono jack):
max. output level 1 Vp-p, unbalanced,
Sync negative, load impedance 75 ohms
COMPONENT VIDEO OUT:
Y: 1 Vp-p, 75 ohms
PB/CB: 0.7 Vp-p, 75 ohms
PR/CR: 0.7 Vp-p, 75 ohms
DVD DIGITAL OUT (Square optical connector jack, rear panel):
Wavelength 650 nm
PHONES (stereo mini jack):
accepts headphones of 8 ohms or more
SUBWOOFER OUT (MHC-GZR88D only):
Voltage 1 V, impedance 1 kilohm
FRONT SPEAKER: Use only the supplied speaker SS-GZR99D.
SATELLITE SPEAKER: Use only the supplied speaker SS-RSX99D.
SUBWOOFER (MHC-GZR99D only):
Use only the supplied subwoofer
SS-WGV99D.
(USB) port: Type A (1)
Maximum current: 500 mA
Disc player section
System: Compact disc and digital audio and video
system
Laser Diode Properties
Emission duration:
Continuous Laser Output*:
Less than 44.6μW
*This output is the value measurement
at a distance of 200mm from the objective
lens surface on the Optical Pick-up Block
with 7mm aperture.
Frequency response
DVD (PCM 48 kHz): 2 Hz −22 kHz (±1 dB)
CD: 2 Hz −20 kHz (±0.5 dB)
Video color system format
Latin American model: NTSC
Other models: NTSC and PAL
Tape deck section (except for Latin American models)
Recording system: 4-track 2-channel, stereo
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range: 87.5 −108.0 MHz (50 kHz step)
Antenna: FM lead antenna
Antenna terminals: 75 Ωunbalanced
Intermediate frequency:
10.7 MHz
AM tuner section
Tuning range:
Latin American model:
530 – 1,710 kHz (with 10 kHz tuning interval)
531 – 1,710 kHz (with 9 kHz tuning interval)
Other models: 531 – 1,602 kHz (with 9 kHz tuning interval)
530 – 1,610 kHz (with 10 kHz tuning interval)
Antenna: AM loop antenna
Antenna terminals: External antenna terminal
Intermediate frequency:
450 kHz
General
Power requirements
Argentine and Thai models:
AC 220 V, 50/60 Hz
Mexican model: AC 127 V, 60 Hz,
Other models: AC 120, 220, 230 − 240 V, 50/60 Hz,
adjustable with voltage selector
Power consumption
MHC-GZR99D: 215 W
MHC-GZR88D: 170 W
Dimensions (w/h/d) (excl. speakers):
Approx. 280 ×326 ×440 mm
Mass (excl. speakers)
MHC-GZR99D: Approx. 13.2 kg (Latin American models),
approx.13.7 kg (other models)
MHC-GZR88D: Approx. 13.2 kg
Design and specifications are subject to change without notice.

HCD-GZR88D/GZR99D
3
UNLEADED SOLDER
Boards requiring use of unleaded solder are printed with the lead-
free 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 flow)
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.
NOTES ON CHIP COMPONENT REPLACEMENT
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
FLEXIBLE CIRCUIT BOARD REPAIRING
• Keep the temperature of 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.
Laser component in this product is capable of emitting radiation
exceeding the limit for Class 1.
This appliance is classified as
a CLASS 1 LASER product.
This marking is located on the
rear exterior.
CAUTION
Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radia-
tion exposure.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostat-
ic break-down because of the potential difference 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 flexible 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 reflective 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.

HCD-GZR88D/GZR99D
4
Model Parts No.
GZR88D: E3, E15 4-133-526-0[]
GZR88D: E4 4-133-526-1[]
GZR88D: E12 4-133-526-2[]
GZR88D: SP 4-133-526-3[]
GZR88D: TH 4-133-526-4[]
GZR88D: PH 4-133-526-5[]
GZR99D: E3, E15 4-133-527-0[]
GZR99D: E4 4-133-527-1[]
GZR99D: SP 4-133-527-2[]
GZR99D: PH 4-133-527-3[]
GZR99D: E2, E51, MX 4-133-527-4[]
GZR99D: AR 4-133-527-6[]
MODEL IDENTIFICATION
– Back Panel –
• Abbreviation
E3 : 240VAC area in E model
E15 : Iran model
E4 : 110 – 120V/220 – 240V AC area in E model
E12 : 220 – 240V AC area in E model
SP : Singapore model
TH : Thai model
PH : Philippines model
E2 : 120VAC area in E model
E51 : Chilean and Peruvian model
MX : Mexican model
AR : Argentina model
Parts No.

HCD-GZR88D/GZR99D
5
1. SERVICING NOTES ............................................. 6
2. DISASSEMBLY
2-1. Case (Side-L), Case (Side-R).......................................... 9
2-2. Top Panel Section ........................................................... 9
2-3. Loading Panel................................................................. 10
2-4. Chassis............................................................................ 10
2-5. Front Panel Section......................................................... 11
2-6. Back Panel Section ......................................................... 11
2-7. MAIN Board................................................................... 12
2-8. POWER AMP Board ...................................................... 12
2-9. DVD Mechanism Deck, Tuner (TM901)........................ 13
2-10. MIC Board, USB-LED Board ........................................ 13
2-11. Panel (FL) Section.......................................................... 14
2-12. Liquid Crystal Display Panel (LCD101) ........................ 14
2-13. FRONT Board, VOLUME Board................................... 15
2-14. TC-AMP Board
(Except HCD-GZR99D: E2, E51, AR, MX Model)....... 15
2-15. Tape Mechanism Deck
(Except HCD-GZR99D: E2, E51, AR, MX Model)....... 16
2-16. Lid (TC-L), Lid (TC-R)
(Except HCD-GZR99D: E2, E51, AR, MX Model)....... 16
2-17. DRIVER Board, SW Board............................................ 17
2-18. SENSOR Board .............................................................. 17
2-19. MOTOR (TB) Board....................................................... 18
2-20. MOTOR (LD) Board ...................................................... 18
2-21. Chassis............................................................................ 19
2-22. DMB19 Board................................................................. 19
2-23. Base Unit......................................................................... 20
2-24. Optical Pick-up ............................................................... 20
3. TEST MODE ............................................................ 21
4. MECHANICAL ADJUSTMENTS ...................... 26
5. ELECTRICAL ADJUSTMENTS ........................ 27
6. DIAGRAMS
6-1. Block Diagram –RF/Servo Section–............................... 31
6-2. Block Diagram –Video Section– .................................... 32
6-3. Block Diagram –Main Section– ..................................... 33
6-4. Block Diagram –Audio Section–.................................... 34
6-5. Block Diagram –Display/Power Section–...................... 35
6-6. Printed Wiring Boards –Driver Section–........................ 37
6-7. Schematic Diagram –Driver Section– ............................ 38
TABLE OF CONTENTS
6-8. Printed Wiring Board –DMB19 Board (1/2)– ................ 39
6-9. Printed Wiring Board –DMB19 Board (2/2)– ................ 40
6-10. Schematic Diagram –DMB19 Board (1/4)–................... 41
6-11. Schematic Diagram –DMB19 Board (2/4)–................... 42
6-12. Schematic Diagram –DMB19 Board (3/4)–................... 43
6-13. Schematic Diagram –DMB19 Board (4/4)–................... 44
6-14. Printed Wiring Board –Main Section–............................ 45
6-15. Schematic Diagram –Main Section (1/3)–...................... 46
6-16. Schematic Diagram –Main Section (2/3)–...................... 47
6-17. Schematic Diagram –Main Section (3/3)–...................... 48
6-18. Printed Wiring Board –Mic Section–.............................. 49
6-19. Schematic Diagram –Mic Section– ................................ 50
6-20. Printed Wiring Board –TC Amp Section
(Except HCD-GZR99D: E2, E51, AR, MX Model) –.... 51
6-21. Schematic Diagram –TC Amp Section
(Except HCD-GZR99D: E2, E51, AR, MX Model) –.... 52
6-22. Printed Wiring Board –Video Section–........................... 53
6-23. Schematic Diagram –Video Section– ............................. 54
6-24. Printed Wiring Boards –Front Section–.......................... 55
6-25. Schematic Diagram –Front Section–.............................. 56
6-26. Printed Wiring Board –Left Section– ............................. 57
6-27. Schematic Diagram –Left Section–................................ 58
6-28. Printed Wiring Board –Right Section–........................... 59
6-29. Schematic Diagram –Right Section–.............................. 60
6-30. Printed Wiring Board –LCD Control Section (1/2) –..... 61
6-31. Printed Wiring Board –LCD Control Section (2/2) –..... 62
6-32. Schematic Diagram –LCD Control Section–.................. 63
6-33. Printed Wiring Boards –Power Amp/HP Section– ......... 64
6-34. Schematic Diagram –Power Amp/HP Section–.............. 65
6-35. Printed Wiring Boards –Trans Section–.......................... 66
6-36. Schematic Diagram –Trans Section–.............................. 67
7. EXPLODED VIEWS
7-1. Overall Section ............................................................... 81
7-2. Front Panel Section-1...................................................... 82
7-3. Front Panel Section-2...................................................... 83
7-4. Top Panel Section
(Except HCD-GZR99D: E2, E51, AR, MX Model)....... 84
7-5. Chassis Section-1............................................................ 85
7-6. Chassis Section-2............................................................ 86
7-7. DVD Mechanism Deck Section-1 .................................. 87
7-8. DVD Mechanism Deck Section-2 .................................. 88
8. ELECTRICAL PARTS LIST .............................. 89

HCD-GZR88D/GZR99D
6
SECTION 1
SERVICING NOTES
Notes on Disconnecting Between the OP Section (DVBU101) and the DMB19 Board
Note: When disconnecting between the OP section (DVBU101) and the DMB19 board, be sure to make a solder brige for electrostatic
prevention as illustrated in the figure (before disconnection).
On the contrary, when installing the OP section, never remove the solder bride until the OP section and the DMB19 board are
connected.
Be sure to remove the solder bridge after the OP section and the DMB19 board have been connected.
Manual Opening and Closing the CD Tray
As illustrated, insert a flathead screwdriver and give a turn to the left to put the CD tray out.
Perform solder bridging to prevent damage by electrostatic
discharge when handling the BU as a single unit.
1
2
As illustrated, insert a flathead screwdriver
and give a turn to the left to put the tray out.
flathead screwdriver
CD tray

HCD-GZR88D/GZR99D
7
Service Position for the BU
DMB19 board

HCD-GZR88D/GZR99D
8
SECTION 2
DISASSEMBLY
• This set can be disassembled in the order shown below.
2-1. CASE (SIDE-L),
CASE (SIDE-R)
(Page 9)
2-2. TOP PANEL SECTION
(Page 9)
SET
2-3. LOADING PANEL
(Page 10)
2-4. CHASSIS
(Page 10)
2-14. TC-AMP BOARD
(Page 15)
EXCEPT HCD-GZR99D: E2, E51, AR, MX MODEL
2-15. TAPE MECHANISM DECK
(Page 16)
2-16. LID (TC-L),
LID (TC-R)
(Page 16)
2-23. BASE UNIT
(Page 20)
2-24. OPTICAL PICK-UP
(Page 20)
2-21. CHASSIS
(Page 19)
2-22. DMB19 BOARD
(Page 19)
2-19. MOTOR (TB) BOARD
(Page 18)
2-20. MOTOR (LD) BOARD
(Page 18)
2-18. SENSOR BOARD
(Page 17)
2-5. FRONT PANEL SECTION
(Page 11)
2-11. PANEL (FL) SECTION
(Page 14)
2-10. MIC BOARD,
USB-LED BOARD
(Page 13)
2-12. LIQUID CRYSTAL DISPLAY PANEL
(LCD101)
(Page 14)
2-13. FRONT BOARD,
VOLUME BOARD
(Page 15)
2-7. MAIN BOARD
(Page 12)
2-6. BACK PANEL SECTION
(Page 11)
2-8. POWER AMP BOARD
(Page 12)
2-9. DVD MECHANISM DECK,
TUNER (TM901)
(Page 13)
2-17. DRIVER BOARD,
SW BOARD
(Page 17)

HCD-GZR88D/GZR99D
9
Note: Follow the disassembly procedure in the numerical order given.
2-1. CASE (SIDE-L), CASE (SIDE-R)
2-2. TOP PANEL SECTION
1screw
(+BVTP 3 u6)
1screw
(+BVTP 3 u6)
0top panel section
7two hooks
8top panel section
7two hooks
4claw 4claw
8wire (flat type) (11 core)
(CN102)
9wire (flat type) (11 core)
(CN621)
5claw 5claw
2screw
(+PWH 3 u8)
2screw
(+PWH 3 u8)
3screw
(+PWH 3 u8) 3screw
(+PWH 3 u8)
6
6
HCD-GZR99D： E2, E51, AR, MX MODELEXCEPT HCD-GZR99D： E2, E51, AR, MX MODEL
1three screws
(case 3 TP2)
2three screws
(+P 3 u5)
5case (side-L)
0case (side-R)
6three screws
(case 3 TP2)
7three screws
(+P 3 u5)
3
8
9
4

HCD-GZR88D/GZR99D
10
2-3. LOADING PANEL
2-4. CHASSIS
3loading panel
2
1
CD tray
flathead screwdriver
As illustrated, insert a flathead
screwdriver and give a turn to the left to
put the CD tray out.
1screw
(+BVTP 3 u6)
6CN1105 (4P)
2two screws
(+BVTP 3 u8)
3two screws
(+BVTP 3 u8)
5chassis
7wire (flat type) (5 core)
(CN704)
4

HCD-GZR88D/GZR99D
11
2-6. BACK PANEL SECTION
2-5. FRONT PANEL SECTION
6screw
(+BVTP 3 u8)
7screw
(+BVTP 3 u8)
8screw
(+BVTP 3 u8)
9two screws
(+BVTP 3 u8)
1wire (flat type)
(7 core) (CN503)
2wire (flat type)
(21 core) (CN501)
0front panel section
3CN407 (4P)
4CN912 (4P)
5CN1504 (3P)
5two screws
(+BVTP 3 u6)
4screw
(+BVTP 3 u6)
6three screws
(+BVTP 3 u6)
7two screws
(+BVTP 3 u6)
8four screws
(+BVTP 3 u6)
qf back panel section
1CN321 (2P)
qs CN1503
(3P)
qd CN602 (3P)
2CN322 (5P)
3CN324 (2P) (TH, AR, MX model)
CN323 (4P) (except TH, AR, MX model)
0wire (flat type) (5 core)
(CN511)
qa wire (flat type) (7 core)
(CN1500) 9

HCD-GZR88D/GZR99D
12
2-8. POWER AMP BOARD
2-7. MAIN BOARD
3screw
(+BVTP 3 u8)
0heat sink section
4three screws
(+BVTP 3 u8)
9two screws
(+BVTP 3 u8)
qa POWER AMP board
7two screws
(+BVTP 3 u8) 6two screws
(+BVTP 3 u8)
5two screws
(transistor)
2CN401 (5P)
1CN402 (12P)
8
1two screws
(+KTP2 3 u8)
3two screws
(+BVTP 3 u8)
4
2WIRE HOLDER C board
5wire (flat type) (9 core)
(CN211)
6wire (flat type) (7 core)
(CN191) 7wire (flat type) (9 core)
(CN504)
0MAIN board
8wire (flat type) (13 core)
(CN641)
9CN951 (9P)

HCD-GZR88D/GZR99D
13
2-9. DVD MECHANISM DECK, TUNER (TM901)
2-10. MIC BOARD, USB-LED BOARD
8MIC board
5USB-LED board
holder (MIC PWB)
front panel section
7CN704 (5P)
1three knobs (MIC)
3three screws
(+BVTP 2.6 (3CR))
6three screws
(+BVTP 2.6 (3CR))
4
2screw
(+BVTP 2.6 (3CR))
4screw
(+BVTP 3 u8)
6two screws
(+BVTP 3 u8)
9two screws
(+BVTP 3 u6)
5two screws
(+BVTP 3 u8)
1two screws
(+KTP2 3 u8)
2WIRE HOLDER C board
qa tuner (TM901)
3wire (flat type) (13 core)
(CN701)
8DVD MECHANISM DECK
7
0wire (flat type) (9 core)
(connector)

HCD-GZR88D/GZR99D
14
2-12. LIQUID CRYSTAL DISPLAY PANEL (LCD101)
2-11. PANEL (FL) SECTION
1CN861 (12P)
qf panel (FL) section
2CN841 (10P)
3claw
6claw
7claw
0claw
qa claw
qs claw
qd
4claw
5claw
8claw
9claw
9liquid crystal display panel
(LCD101)
2CN003 (26 core)
1CN004 (2P)
4LCD CTRL board
6holder (LCD-R)
8holder (LCD-L)
3two screws
(+BVTP 2.6 (3CR))
5two screws
(+BVTP 2.6 (3CR))
7two screws
(+BVTP 2.6 (3CR))

HCD-GZR88D/GZR99D
15
2-13. FRONT BOARD, VOLUME BOARD
2-14. TC-AMP BOARD (EXCEPT HCD-GZR99D: E2, E51, AR, MX, MODEL)
9FRONT board
panel (LCD) assy
8VOLUME board
1knob (VOL) assy
2nut
3holder (knob)
4knob (jog)
5five screws
(+BVTP 2.6 (3CR))
6four screws
(+BVTP 2.6 (3CR))
7three screws
(+BVTP 2.6 (3CR))
1CN1301 (3P)
2CN1302 (8P)
4TC-AMP board
3three screws
(+BVTP 2.6 (3-CR))

HCD-GZR88D/GZR99D
16
2-16. LID (TC-L), LID (TC-R) (EXCEPT HCD-GZR99D: E2, E51, AR, MX, MODEL)
2-15. TAPE MECHANISM DECK (EXCEPT HCD-GZR99D: E2, E51, AR, MX, MODEL)
1four screws
(+BVTP 2.6 (3-CR))
3three screws
(+BVTP 2.6 (3-CR))
4two screws
(+BVTP 2.6 (3-CR))
5tape mechanism deck
2shield (top)
1damper
4damper
2spring (TC-R)
5spring (TC-L)
3lid (TC-R)
7panel (top TC)
6lid (TC-L)

HCD-GZR88D/GZR99D
17
2-17. DRIVER BOARD, SW BOARD
2-18. SENSOR BOARD
6DRIVER board
2SW board
3CN704 (2P)
4CN703 (4P)
7CN702 (5 core)
5two
screws
(+BTTP (M2.6))
1 screw
(+BTTP (M2.6))
2 tray
3 belt (table)
5 pulley (table)
8 screw
(+BTTP (M2.6))
9 SENSOR board
7 gear (geneva)
0 CN731
(3P)
1floating screw
(+PTPWH M2.6)
6floating screw
(+PTPWH M2.6)
4floating screw
(+PTPWH M2.6)

HCD-GZR88D/GZR99D
18
2-20. MOTOR (LD) BOARD
2-19. MOTOR (TB) BOARD
5 Remove the two solders of motor.
4 MOTOR (TB) board
2 stopper
2 stopper
6 table motor assy (M741)
table assy
3two screws
(+BTTP (M2.6))
1
4 Remove the two solders of motor.
3 MOTOR (LD) board
1 belt (loading)
5 loading motor assy (M751)
2two screws
(+BTTP (M2.6))

HCD-GZR88D/GZR99D
19
2-21. CHASSIS
2-22. DMB19 BOARD
1screw
(+BVTP 3 u6)
2two screws
(+BVTP 3 u8)
3two screws
(+BVTP 3 u8)
5chassis
4
9two screws
(+BVTP 3 u8)
0two screws
(+BVTP 3 u8)
qs two screws
(+BVTP 3 u8)
qd screw
(+BVTP 2.6 (3CR))
2wire (flat type)(9 core)
(CN1106)
3wire (flat type)(7 core)
(CN1104)
8wire (flat type)(24 core)
(CN101)
qf bracket (DMB)
5wire (flat type)(7 core)
(CN4602)
1CN1105 (4P)
4CN1103 (3P)
6CN601 (9P)
qa DMB19 board
7CN201 (6P)

HCD-GZR88D/GZR99D
20
2-24. OPTICAL PICK-UP
2-23. BASE UNIT
1two insulator screws
3two insulators
4two insulators
2two insulator screws
5
optical pick-up
6 holder (310)
1screw
(+PTPWH M2.6)
2base unit