HCD-GNV111D, HCD-GNV99D, MHC-GNV111D, MHC-GNV99D - Sony Audio Service Manual (repair manual)

E Model

HCD-GNV99D/GNV111D

Australian Model

HCD-GNV111D

2006J02-1
© 2006.10

– Continued on next page –

• HCD-GNV99D/GNV111D are the Amplifier,

DVD player, tape deck and tuner
section in MHC-GNV99D/GNV111D.

DVD

Model Name Using Similar Mechanism

NEW

DVD Mechanism Type

CDM74H-DVBU101

Section

Optical Pick-up Name

KHM-310CAB/C2NP

TAPE

Model Name Using Similar Mechanism

NEW

Section

Tape Transport Mechanism Type

CMAT2E2

Photo : HCD-GNV111D

Inputs
VIDEO INPUT:

VIDEO: 1 Vp-p, 75 ohms

(phono jacks)

AUDIO L/R: Voltage
250 mV, impedance 47 kilohms

TV/SAT AUDIO IN L/R: voltage 250 mV/450 mV,
(phono jacks)

impedance 47 kilohms

MIC 1/2:

sensitivity 1 mV,

(phone jack)

impedance 10 kilohms

Outputs
AUDIO OUT:

Voltage 250 mV

(phono jacks)

impedance 1 kilohm

VIDEO OUT:

max. output level 1 Vp-p,

(phono jack)

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:

Y: 1 Vp-p, unbalanced,

(4-pin/mini-DIN jack)

Sync. negative
C: 0.286 Vp-p load impedance 75 ohms

PHONES:

accepts headphones of

(stereo mini jack)

8 ohms or more

FRONT SPEAKER:

Use only the supplied speakers

SURR SPEAKER:

Use only the supplied speakers

CENTER SPEAKER:

Use only the supplied speaker

SUBWOOFER OUT:

Voltage 250 mV

(phono jack)

impedance 1 kilohm

HCD-GNV111D

The following are measured at AC 120, 127, 220, 240V 50/60 Hz
DIN power output (rated)
Front speaker:

110 W + 110 W
(6 ohms at 1 kHz, DIN)

Center speaker:

50 W
(16 ohms at 1 kHz, DIN)

Surround speaker:

110 W + 110 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:

80 W
(16 ohms at 1 kHz, 10% THD)

Surround speaker:

160 W + 160 W
(6 ohms at 1 kHz, 10% THD)

HCD-GNV99D

The following are measured at AC 120, 127, 220, 240V 50/60 Hz
DIN power output (rated)
Front speaker:

130 W + 130 W
(6 ohms at 1 kHz, DIN)

Center speaker:

30 W
(8 ohms at 1 kHz, DIN)

Surround speaker:

 30 W + 30 W
(8 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)
Front speaker:

180 W + 180 W
(6 ohms at 1 kHz, 10% THD)

Center speaker:

50 W
(8 ohms at 1 kHz, 10% THD)

Surround speaker:

50 W + 50 W
(8 ohms at 1 kHz, 10% THD)

2

• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be

damaged by heat.

• 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.

This appliance is classified as
a CLASS 1 LASER product.
This label is located on the rear
exterior.

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.

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

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

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
Saudi Arabian model:

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
Australian model:

230 – 240 V AC, 50/60 Hz

Mexican model:

127 V AC, 60Hz

Saudi Arabian model:

120 – 127 V, 220 V or
230 – 240 V AC, 50/60 Hz
Adjustable with voltage selector

Other models:

120 V, 220 V or
230 – 240 V AC, 50/60 Hz
Adjustable with voltage selector

Power consumption
MHC-GNV111D

380 W

MHC-GNV99D

285 W

Dimensions (w/h/d) (Approx.)
HCD-GNV111D

280 

× 371 × 398.5 mm

HCD-GNV99D

280 

× 360 × 398.5 mm

Mass (Approx.)
HCD-GNV111D

16.1 kg

HCD-GNV99D

15.2 kg

Design and specifications are subject to change without notice.

3

................................................

4

...................................................................

6

3-1.

Disassembly Flow ...........................................................

8

3-2.

Case .................................................................................

9

3-3.

Loading Panel Assy .........................................................

9

3-4.

Front Panel Assy .............................................................. 10

3-5.

Tuner Pack ....................................................................... 11

3-6.

Tape Mechanism Deck, MIC Board ................................ 12

3-7.

Panel Board, CD-SW Board ............................................ 13

3-8.

DVD Mechanism Deck ................................................... 14

3-9.

Video Board, DMB10 Board ...........................................  15

3-10. Back Panel ....................................................................... 16
3-11. Primary Board ................................................................. 16
3-12. Power Amp PC Board Assy, Main Board ........................ 17
3-13. DVD SURR Board, PA Board ......................................... 17
3-14. Power Transformer (T1200) ............................................ 18
3-15. Driver Board, SW Board ................................................. 18
3-16. DVD Assy ........................................................................ 19
3-17. Optical Pick-up ................................................................ 19
3-18. Sensor Board ................................................................... 20
3-19. Motor (TB) Board ........................................................... 20
3-20. Motor (LD) Board ........................................................... 21

............................................................... 22

......................... 27

.......................... 27

DIAGRAMS .......................................................... 29

7-1.

Block Diagram  – RF Section – ....................................... 30

7-2.

Block Diagram – Video Section – ................................... 31

7-3.

Block Diagram – Tape/Tuner Section – .......................... 32

7-4.

Block Diagram – Main Section – .................................... 33

7-5.

Block Diagram – AMP Section – .................................... 34

7-6.

Block Diagram – Display/Power Section – ..................... 35

7-7.

Printed Wiring Board – DMB10 Board (Side A) – ......... 36

7-8.

Printed Wiring Board – DMB10 Board (Side B)  – ........ 37

7-9.

Schematic Diagram  – DMB10 Board (1/4)  – ................ 38

7-10. Schematic Diagram  – DMB10 Board (2/4)  – ................ 39
7-11. Schematic Diagram  – DMB10 Board (3/4)  – ................ 40
7-12. Schematic Diagram  – DMB10 Board (4/4)  – ................ 41
7-13. Printed Wiring Boards  – CD Mechanism Boards – ....... 42
7-14. Schematic Diagram  – CD Mechanism Boards  – ........... 43
7-15. Printed Wiring Board – Main Board – ............................ 44
7-16. Schematic Diagram  – Main Board (1/5) – ..................... 45
7-17. Schematic Diagram  – Main Board (2/5) – ..................... 46
7-18. Schematic Diagram  – Main Board (3/5) – ..................... 47
7-19. Schematic Diagram  – Main Board (4/5) – ..................... 48
7-20. Schematic Diagram  – Main Board (5/5) – ..................... 49
7-21. Printed Wiring Board – Panel Board – ............................ 50
7-22. Schematic Diagram  – Panel Board – .............................. 51
7-23. Printed Wiring Boards – CD-SW, JOG

And MIC Boards – .......................................................... 52

7-24. Schematic Diagram  – CD-SW, JOG

And MIC Boards – .......................................................... 53

7-25. Printed Wiring Board – PA Board – ................................ 54
7-26. Schematic Diagram  – PA Board – .................................. 55
7-27. Printed Wiring Board – DVD SURR Board – ................. 56
7-28. Schematic Diagram  – DVD SURR Board – ................... 57
7-29. Printed Wiring Board – Video Board – ........................... 58
7-30. Schematic Diagram  – Video Board – ............................. 59
7-31. Printed Wiring Boards – Trans And Primary Boards – ... 60
7-32. Schematic Diagram  – Trans And Primary Boards – ....... 61

8-1.

Case, Rear Panel Section ................................................. 73

8-2.

Front Panel Section ......................................................... 74

8-3.

Chassis Section ................................................................ 75

8-4.

DVD Mechanism Section-1 (CDM74H-DVBU101) ...... 76

8-5.

DVD Mechanism Section-2 (CDM74H-DVBU101) ...... 77

....................... 78

4

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.

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.

Carry out the “S curve check” in “CD section adjustment” and check
that the S curve waveform is output several times.

NOTE ON REPLACEMENT OF DMB10 BOARD
New part of EEPROM (IC103) on the DMB10 board can not be
used. Therefore, if the mounted DMB10 board (A-1099-272-A or
A-1099-344-A or A-1115-347-A) is replaced, exchange new
EEPROM with that used before the replacement.

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)

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.

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 in
the on-screen display and the front panel

C 13

The disc is dirty.

• Clean the disc with a soft cloth 

(page xx).

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

display. In this case, check the following table.

PART No.

MODEL

PART No.

GNV99D : E3, E15 models

2-584-723-0[]

GNV111D : E2 model

2-584-724-0[]

GNV99D : EA model

2-596-940-0[]

GNV99D : PH model

2-596-941-0[]

GNV111D : MY, SP models

2-596-943-0[]

GNV111D : EA model

2-596-944-0[]

GNV111D : E3, E15 models

2-596-945-0[]

GNV111D : AUS model

2-596-946-0[]

GNV111D : PH model

2-596-947-0[]