HCD-GN999D, MHC-GN999D, MHC-GN999DS - Sony Audio Service Manual (repair manual)

hcd-gn999d, mhc-gn999d, mhc-gn999ds service manual
Model
HCD-GN999D MHC-GN999D MHC-GN999DS
Pages
103
Size
7.16 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-gn999d-mhc-gn999d-mhc-gn999ds.pdf
Date

Read Sony HCD-GN999D / MHC-GN999D / MHC-GN999DS Service Manual online

HCD-GN999D
E Model
SERVICE MANUAL
MINI HI-FI COMPONENT SYSTEM
Sony Corporation
Audio Business Group
Published by Sony Techno Create Corporation
SPECIFICATIONS
Ver.1.2  2007.12
– Continued on next page –
• HCD-GN999D is the Amplifier,
DVD player, tape deck and tuner
section in MHC-GN999D/GN999DS.
DVD
Model Name Using Similar Mechanism
HCD-GNV99D
DVD Mechanism Type
CDM74HF-DVBU101
Section
Optical Pick-up Name
KHM-310CAB/C2NP
TAPE
Model Name Using Similar Mechanism
NEW
Section
Tape Transport Mechanism Type
CWN42FR602
Amplifier section
The following are measured at AC 120, 127, 220,
240V, 50/60 Hz
DIN power output (rated)
135 W + 135 W
(6 ohms at 1 kHz, DIN)
Continuous RMS power output (reference)
Front speaker:
160 W + 160 W
(6 ohms at 1 kHz, 10% THD)
Center speaker:
50 W
(16 ohms at 1 kHz, 10% THD)
Surround speaker:
50 W + 50 W
(16 ohms at 1 kHz, 10% THD)
Subwoofer:
160 W (6 ohms at 100 Hz, 10% THD)
Inputs
VIDEO INPUT (phono jacks)
VIDEO: 1 Vp-p, 75 ohms
AUDIO L/R: Voltage 250 mV,
impedance 47 kilohms
TV/SAT AUDIO IN L/R (phono jacks)
Voltage 250 mV/450 mV,
impedance 47 kilohms
MIC 1/MIC 2
(phone jack):
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
P
B
/C
B
: 0.7 Vp-p, 75 ohms
P
R
/C
R
: 0.7 Vp-p, 75 ohms
S VIDEO OUT (4-pin/mini-DIN jack)
Y: 1 Vp-p, unbalanced,
Sync. negative
C: 0.286 Vp-p, load
impedance 75 ohms
PHONES (stereo mini jack):
Accepts headphones of
8 ohms or more
FRONT SPEAKER:
Use only the supplied speakers
SURROUND SPEAKER
Use only the supplied speakers
CENTER SPEAKER
Use only the supplied speakers
SUB WOOFER
Use only the supplied subwoofer
Disc player section
System
Compact disc and digital audio and
video system
Laser
Semiconductor laser
(DVD: 
λ
 = 650 nm, CD: 
λ
 = 790 nm)
Emission duration: continuous
Frequency response
DVD (PCM 48 kHz):
2 Hz – 22 kHz (
±
1dB)
CD: 2 Hz – 20 kHz (
±
0.5 dB)
Video color system format
Latin American models:
NTSC
Other models:
NTSC and PAL
Tape deck section
Recording system
4-track 2-channel stereo
Frequency response
50 – 13,000 Hz (
±
3 dB),
using Sony TYPE I tape
9-887-269-03
2007L02-1
© 2007.12
2
HCD-GN999D
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 ohms unbalanced
Intermediate frequency
10.7 MHz
AM tuner section
Tuning range
Latin American models:
530 – 1,710 kHz
(with the interval set at 10 kHz)
531 – 1,710 kHz
(with the interval set at 9 kHz)
Saudi Arabian and Russian models:
531– 1,602 kHz
(with the interval set at 9 kHz)
Other models:
531 – 1,602 kHz
(with the interval set at 9 kHz)
530 – 1,710 kHz
(with the interval set at 10 kHz)
Antenna
AM loop antenna
Antenna terminals
External antenna terminal
Intermediate frequency
450 kHz
General
Power requirements
Mexican model:
127 V AC, 60 Hz
Saudi Arabian model:
120 – 127 V, 120 – 220 V or 220 –
240 V AC, 50/60 Hz
Adjustable with voltage selector
Thai model:
220 V AC, 50/60 Hz
Other models:
120 V or 220 – 240 V AC, 50/60 Hz
Adjustable with voltage selector
Power consumption
160 W
Dimensions (w/h/d) (Approx.)
280 
× 326 x 385.5 mm
Mass (Approx.)
6.5 kg
Design and specifications are subject to change without notice.
(When letters/numbers appear in the 
display)
When the self-diagnosis function is activated to 
prevent the system from malfunctioning, a 
5-character service number (e.g. C 13 50) with a 
combination of a letter and 4 digits appears on 
the TV screen and the front panel display. In this 
case, check the following table.
Self-diagnosis Function
First 3 
characters of 
the service 
number
Cause and corrective action
C 13
This disc is dirty.
  Clean the disc with a soft cloth .
C 31
The disc is not inserted correctly.
  Restart the system, then re-insert 
the disc correctly.
E XX
(XX is a 
number)
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
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 viscou-s (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.
3
HCD-GN999D
1.
SERVICING NOTES
................................................
4
2.
GENERAL
...................................................................
5
3.
DISASSEMBLY
3-1.
Disassembly Flow ...........................................................
7
3-2.
Cabinet Steel case ............................................................
8
3-3.
Loading Panel ..................................................................
8
3-4.
Tuner Pack .......................................................................
9
3-5.
Back Panel, DC Fan (M891) ...........................................
9
3-6.
DVD Mechanism Deck ................................................... 10
3-7.
KARAOKE Board, VIDEO Board, DMB15 Board ........ 10
3-8.
Front Panel Assy .............................................................. 11
3-9.
Tape Mechanism Deck, MIC Board ................................  11
3-10. PANEL Board, IR Board, VOL Board ............................ 12
3-11. MAIN Board, ADC Board ............................................... 12
3-12. POWER Board ................................................................ 13
3-13. SPEAKER Board, SMASTER Board ............................. 13
3-14. DRIVER Board, SW Board ............................................. 14
3-15. DVD Assy ........................................................................ 14
3-16. Optical pick-up ................................................................ 15
3-17. SENSOR Board ............................................................... 15
3-18. MOTOR (TB) Board ....................................................... 16
3-19. MOTOR (LD) Board ....................................................... 16
4.
TEST MODE
............................................................... 17
5.
MECHANICAL ADJUSTMENTS
......................... 21
6.
ELECTRICAL ADJUSTMENTS
.......................... 22
TABLE OF CONTENTS
7.
DIAGRAMS ..........................................................
25
7-1.
Block Diagram  – RF Section – ....................................... 27
7-2.
Block Diagram – Video Section – ................................... 28
7-3.
Block Diagram – Tape/Tuner Section – .......................... 29
7-4.
Block Diagram – Main Section – .................................... 30
7-5.
Block Diagram – AMP Section – .................................... 31
7-6.
Block Diagram – Display/Power Section – ..................... 32
7-7.
Printed Wiring Board – DMB15 Board (Side A) – ......... 33
7-8.
Printed Wiring Board – DMB15 Board (Side B)  – ........ 34
7-9.
Schematic Diagram  – DMB15 Board (1/4)  – ................ 35
7-10. Schematic Diagram  – DMB15 Board (2/4)  – ................ 36
7-11. Schematic Diagram  – DMB15 Board (3/4)  – ................ 37
7-12. Schematic Diagram  – DMB15 Board (4/4)  – ................ 38
7-13. Printed Wiring Boards  – CD Mechanism Section – ....... 39
7-14. Schematic Diagram  – CD Mechanism Section  – .......... 40
7-15. Printed Wiring Board – MAIN Board – .......................... 41
7-16. Schematic Diagram  – MAIN Board (1/3) – ................... 42
7-17. Schematic Diagram  – MAIN Board (2/3) – ................... 43
7-18. Schematic Diagram  – MAIN Board (3/3) – ................... 44
7-19. Printed Wiring Board – Panel Section – .......................... 45
7-20. Schematic Diagram  – Panel Section – ........................... 46
7-21. Printed Wiring Boards – MIC, VOL
And SPEAKER Boards – ................................................ 47
7-22. Schematic Diagram  – MIC, VOL
And SPEAKER Boards – ................................................ 48
7-23. Printed Wiring Board – ADC Board – ............................. 49
7-24. Schematic Diagram  – ADC Board – .............................. 50
7-25. Printed Wiring Board – SMASTER Board (Side A) – .... 51
7-26. Printed Wiring Board – SMASTER Board (Side B) – .... 52
7-27. Schematic Diagram  – SMASTER Board (1/3) – ........... 53
7-28. Schematic Diagram  – SMASTER Board (2/3) – ........... 54
7-29. Schematic Diagram  – SMASTER Board (3/3) – ........... 55
7-30. Printed Wiring Board – VIDEO Board – ........................ 56
7-31. Schematic Diagram  – VIDEO Board – .......................... 57
7-32. Printed Wiring Boards – POWER Board – ..................... 58
7-33. Schematic Diagram  – POWER Board – ......................... 59
7-34. Printed Wiring Board – KARAOKE Board – ................. 60
7-35. Schematic Diagram  – KARAOKE Board – ................... 61
7-36. IC Pin Function Description ............................................ 63
8.
EXPLODED VIEWS
8-1.
Case, Back Panel Section ................................................ 73
8-2.
Front Panel Section ......................................................... 74
8-3.
Chassis Section ................................................................ 75
8-4.
DVD Mechanism Section-1 (CDM74HF-DVBU101) .... 76
8-5.
DVD Mechanism Section-2 (CDM74HF-DVBU101) .... 77
9.
ELECTRICAL PARTS LIST
....................... 78
4
HCD-GN999D
SECTION 1
SERVICING NOTES
NOTES ON HANDLING THE OPTICAL PICK-UP BLOCK
OR BASE UNIT
The laser diode in the optical pick-up block may suffer electrostatic
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 pick-
up block. Therefore, when checking the laser diode emission,
observe from more than 30 cm away from the objective lens.
LASER DIODE AND FOCUS SEARCH OPERATION
CHECK
Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output several times.
• MODEL  IDENTIFICATION
– Back Panel –
MODEL
   PART No.
E3, E15 models
2-658-971-0
[]
E2 model
2-658-971-1
[]
EA model
2-658-971-2
[]
MY,SP models
2-658-971-3
[]
E12 model
2-658-971-4
[]
E13 model
2-658-971-5
[]
PH model
2-658-971-6
[]
MX model
2-658-971-7
[]
E51 model
2-658-971-8
[]
TH model
2-658-971-9
[]
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 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
radiation exposure.
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.
PART No.
Abbreviation
E2 : 120V AC Area in E model
E3 : 240V AC Area in E model
E12 : 220V-240V AC Area in E model
E13 : 220V-230V AC area in E model
E15 : Iran model
E51 : Chilean and Perurian model
EA : Saudi Arabia model
MX : Mexican model
MY : Malaysia model
PH : Philippines model
SP : Singapore model
TH : Thai model
This appliance is classified as
a CLASS 1 LASER product.
This label is located on the rear
exterior.
NOTE ON REPLACEMENT OF DMB15 BOARD
New part of EEPROM (IC103) on the DMB15 board cannot be
used. Therefore, if the mounted DMB15 board (A-1167-802-A or
A-1167-915-A or A-1188-872-A) is replaced, exchange new
EEPROM with that used before the replacement.
CHANGE OF THE COMBINED BOARD SUFFIX
Suffix of the Main, Panel, Power and SMASTER combined board
was changed from -12 to -13.
Ver. 1.2
Page of 103
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