Sony HCD-GZR333IA User manual

SERVICE MANUAL
Sony Corporation
Published by Sony Techno Create Corporation
HCD-GZR333IA
DVD RECEIVER
9-893-161-01
2011D04-1
© 2011.04
E Model
Ver. 1.0 2011.04
SPECIFICATIONS
• HCD-GZR333IA is the tuner, iPod, DVD and
amplifier section in MHC-GZR333iA.
Main unit
Amplifier section
The following measured at AC 240 V,
50/60 Hz
Power output (rated):
105 W + 105 W (at 6 Ω, 1 kHz, 1%
THD)
RMS output power (reference):
210 W + 210 W (per channel at 6 Ω,
1 kHz)
Inputs
VIDEO/SAT VIDEO IN (phono jack):
1 Vp-p, 75 Ω
VIDEO/SAT AUDIO IN L/R (phono jacks):
voltage 250/450 mV, impedance
47 kΩ
MIC (phone jack):
sensitivity 1 mV, impedance 10 kΩ
DVD
Section
Model Name Using Similar Mechanism HCD-GZR333I
DVD Mechanism Type CDM74HFVX-DVBU101
Optical Pick-up Name KHM-313CAB
Outputs
VIDEO OUT (phono jack):
max. output level 1 Vp-p, unbalanced,
Sync negative, load impedance 75 Ω
COMPONENT VIDEO OUT
Y: 1 Vp-p, 75 Ω
PB: 0.7 Vp-p, 75 Ω
PR: 0.7 Vp-p, 75 Ω
DVD DIGITAL OUT (Square optical
connector jack, rear panel):
Wavelength 650 nm
PHONES (stereo mini jack):
accepts headphones of 8 Ωor more
SUBWOOFER OUT:
Voltage 1 V, impedance 1 kΩ
SPEAKERS
MHC-GZR333i:
Use only the supplied speaker SS-GZR777D.
LBT-LCD77Di:
Use only the supplied speaker SS-LCD77DI.
(USB) port: Type A
Maximum current:
500 mA
– Continued on next page –

HCD-GZR333IA
2
SAFETY-RELATED COMPONENT 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.
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
North American model: NTSC
Other models: NTSC and PAL
Tuner section
FM stereo, FM/AM superheterodyne tuner
FM tuner section
Tuning range
87.5 MHz – 108.0 MHz (50 kHz step)
Antenna:
FM lead antenna
Antenna terminals:
75 Ωunbalanced
Intermediate frequency:
10.7 MHz
AM tuner section
Tuning range:
530 kHz – 1,710 kHz (10 kHz step)
531 kHz – 1,710 kHz (9 kHz step)
Antenna:
AM loop antenna
Antenna terminals:
External antenna terminal
Intermediate frequency:
450 kHz
General
Power requirements
Mexican model:
AC 127 V, 60 Hz
Other models:
AC 120 V, 220 V, 230 V – 240 V,
50/60 Hz, adjustable with voltage
selector
Power consumption:
150 W
Dimensions (W/H/D) (excl. speakers):
Approx. 280 mm ×325 mm ×
430 mm
Mass (excl. speakers):
Approx. 11.2 kg
Supplied accessories:
Remote Commander (1)
AM loop antenna (1)
FM lead antenna (1)
Video cord (1)
Speaker pads (8)
R6 (Size AA) batteries (2)
Design and specifications are subject to
change without notice.

HCD-GZR333IA
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.
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 electro-
static 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.
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.

HCD-GZR333IA
4
Parts No.
Model Parts No.
E51 model 4-278-557-0[]
MX model 4-278-557-1[]
MODEL IDENTIFICATION
– Back Panel –
• Abbreviation
E51 : Chilean and Peruvian models
MX : Mexican model

HCD-GZR333IA
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. VOL-LED Board ............................................................ 13
2-11. LEFT Board, RIGHT Board, FRONT Board ................. 14
2-12. Cursor Stage Assy, Sub Panel LCD Section,
MIC Board ...................................................................... 14
2-13. LCD CTRL Board, LCD Module (LCD101).................. 15
2-14. IP Board .......................................................................... 15
2-15. DRIVER Board, SW Board ............................................ 16
2-16. SENSOR Board .............................................................. 16
2-17. MOTOR (TB) Board....................................................... 17
2-18. MOTOR (LD) Board ...................................................... 17
2-19. Chassis ............................................................................ 18
2-20. DMB19 Board................................................................. 18
2-21. Base Unit......................................................................... 19
2-22. Optical Pick-up ............................................................... 19
3. TEST MODE ............................................................ 20
4. ELECTRICAL ADJUSTMENTS ........................ 24
5. DIAGRAMS
5-1. Block Diagram –RF/Servo Section–............................... 27
5-2. Block Diagram –Video Section– .................................... 28
5-3. Block Diagram –Main Section– ..................................... 29
5-4. Block Diagram –Audio Section–.................................... 30
5-5. Block Diagram –Display/Power Section– ...................... 31
5-6. Printed Wiring Boards –Driver Section– ........................ 33
TABLE OF CONTENTS
5-7. Schematic Diagram –Driver Section– ............................ 34
5-8. Printed Wiring Board –DMB19 Board (1/2)– ................ 35
5-9. Printed Wiring Board –DMB19 Board (2/2)– ................ 36
5-10. Schematic Diagram –DMB19 Board (1/4)– ................... 37
5-11. Schematic Diagram –DMB19 Board (2/4)– ................... 38
5-12. Schematic Diagram –DMB19 Board (3/4)– ................... 39
5-13. Schematic Diagram –DMB19 Board (4/4)– ................... 40
5-14. Printed Wiring Board –Main Section–............................ 41
5-15. Schematic Diagram –Main Section (1/3)–...................... 42
5-16. Schematic Diagram –Main Section (2/3)–...................... 43
5-17. Schematic Diagram –Main Section (3/3)–...................... 44
5-18. Printed Wiring Boards –Mic/HP/USB Section–............. 45
5-19. Schematic Diagram –Mic/HP/USB Section– ................. 46
5-20. Printed Wiring Board –Video Section–........................... 47
5-21. Schematic Diagram –Video Section– ............................. 48
5-22. Printed Wiring Boards –Front Section–.......................... 49
5-23. Schematic Diagram –Front Section– .............................. 50
5-24. Printed Wiring Boards –Panel Section–.......................... 51
5-25. Schematic Diagram –Panel Section–.............................. 52
5-26. Printed Wiring Board –LCD Control Section (1/2)– ...... 53
5-27. Printed Wiring Board –LCD Control Section (2/2)– ...... 54
5-28. Schematic Diagram –LCD Control Section–.................. 55
5-29. Printed Wiring Board –Power Amp Section– ................. 56
5-30. Schematic Diagram –Power Amp Section–.................... 57
5-31. Printed Wiring Boards –Trans Section–.......................... 58
5-32. Schematic Diagram –Trans Section–.............................. 59
6. EXPLODED VIEWS
6-1. Overall Section ............................................................... 73
6-2. Front Panel Section-1...................................................... 74
6-3. Front Panel Section-2...................................................... 75
6-4. Top Panel Section ........................................................... 76
6-5. Chassis Section ............................................................... 77
6-6. DVD Mechanism Deck Section-1 .................................. 78
6-7. DVD Mechanism Deck Section-2 .................................. 79
7. ELECTRICAL PARTS LIST .............................. 80

HCD-GZR333IA
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 illus-
trated 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 DVD Tray
As illustrated, insert a flathead screwdriver and give a turn to the left to put the DVD 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 DVD tray out.
flathead screwdriver
DVD tray

HCD-GZR333IA
7
DMB19 board
Service Position for the BU
Note for Replacement of the KNOB (JOG)
When replacing the KNOB (JOG), apply the SANKOL FTA-001HA (Part No. J-2501-264-A) to the end of the rib at 6 places.
Note for Replacement of the HOLDER (KNOB)
When replacing the HOLDER (KNOB), apply the SANKOL FG-21BL (Part No. J-2501-251-A) to the end of the SPRING (KNOB)
at 2 places after the SPRING (KNOB) is installed.
SANKOL FTA-001HA
knob (JOG)
(Part No. 4-165-417-11)
SANKOL FTA-001HA
SANKOL FG-21BL
SANKOL FG-21BL
holder (knob)
(Part No. 4-165-418-01)
spring (knob)
(Part No. 4-171-496-02)

HCD-GZR333IA
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. IP BOARD
(Page 15)
2-21. BASE UNIT
(Page 19)
2-22. OPTICAL PICK-UP
(Page 19)
2-19. CHASSIS
(Page 18)
2-20. DMB19 BOARD
(Page 18)
2-17. MOTOR (TB) BOARD
(Page 17)
2-18. MOTOR (LD) BOARD
(Page 17)
2-16. SENSOR BOARD
(Page 16)
2-5. FRONT PANEL SECTION
(Page 11)
2-11. LEFT BOARD,
RIGHT BOARD,
FRONT BOARD
(Page 14)
2-10. VOL-LED BOARD
(Page 13)
2-12. CURSOR STAGE ASSY,
SUB PANEL LCD SECTION,
MIC BOARD
(Page 14)
2-13. LCD CTRL BOARD,
LCD MODULE (LCD101)
(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)
2-15. DRIVER BOARD,
SW BOARD
(Page 16)

HCD-GZR333IA
9
Note: Follow the disassembly procedure in the numerical order shown below.
2-1. CASE (SIDE-L), CASE (SIDE-R)
2-2. TOP PANEL SECTION
5case (side-L)
0case (side-R)
6three screws
(case M 3 u6)
1three screws
(case M 3 u6)
3
8
9
4
2three screws
(+BVTP 3 u8)
7three screws
(+BVTP 3 u8)
1screw
(+BVTP 3 u8)
2screw
(+BVTP 3 u8)
3screw
(+BVTP 3 u8)
qa top panel section
7two hooks
4claw
8wire (flat type) (9 core)
(CN610)
5claw 6
9CN1001 (3P)
0CN1003 (4P)

HCD-GZR333IA
10
2-3. LOADING PANEL
2-4. CHASSIS
3loading panel
2
1
DVD tray
flathead screwdriver
As illustrated, insert a flathead
screwdriver and give a turn to the left to
put the DVD tray out.
1screw
(+BVTP 3 u8)
6CN1105 (4P)
2two screws
(+BVTP 3 u8)
3two screws
(+BVTP 3 u8)
5chassis
4