HCD-XGV10AV, HCD-XGV6, HCD-XGV8, LBT-XGV10AV, LBT-XGV6, LBT-XGV8 - Sony Audio Service Manual (repair manual)

E Model

— Continued on next page —

• HCD-XGV6/XGV8/XGV10AV are the
   Amplifier, CD player, tape deck and
   tuner section in LBT-XGV6/XGV8/
   XGV10AV.

2004I02-1

© 2004.09

Model Name Using Similar Mechanism

NEW

CD

CD Mechanism Type

CDM37B-30BD62

Section

Base Unit Name

BU-30BD62

Optical Pick-up Name

A-MAX.3

TAPE

Model Name Using Similar Mechanism

HCD-XGR90AV

Section

Photo : HCD-XGV10AV

Amplifier section
LBT-XGV10AV
Front Speaker:
The following measured at AC 120/220/240 V, 50 Hz
DIN power output (Rated)

150 + 150 watts
(6 ohms at 1 kHz, DIN)

Continuous RMS power output (Reference)

200 + 200 watts
(6 ohms at 1 kHz, 10% THD)

Center Speaker:
DIN power output (Rated)

35 watts
(8 ohms at 1 kHz, DIN)

Continuous RMS power output (Reference)

50 watts
(8 ohms at 1 kHz, 10% THD)

Rear Speaker:
DIN power output (Rated)

35 + 35 watts
(8 ohms at 1 kHz, DIN)

Continuous RMS power output (Reference)

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

LBT-XGV8
The following measured at AC 120/220/240V, 50 Hz
DIN power output (rated)

125W x 2 + 125W x 2
(6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

170 W x 2 + 170 W x 2
(6 ohms at 1 kHz, 10% THD)

LBT-XGV6
The following measured at AC 120/220/240V, 50 Hz
DIN power output (rated)

150 + 150 watts (6 ohms at 1 kHz, DIN)

Continuous RMS power output (reference)

200 + 200 watts (6 ohms at 1 kHz,
10% THD)

Inputs
PHONO IN:
(phono jacks)

sensitivity 3 mV,
impedance 47 kilohms

MIC1/2:
(phone jacks)

sensitivity 1 mV,
impedance 10 kilohms

GAME INPUT:
(phono jacks)

sensitivity 250 mV,
impedance 47 kilohms

MD (VIDEO) IN:
(phono jack)

sensitivity 450 mV
(250 mV),
impedance 47 kilohms

DVD INPUT (XGV10AV)
FRONT, REAR, CENTER, WOOFER (phono jacks):

sensitivity 450 mV,
impedance 47 kilohms

2

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

Use of controls or adjustments or performance of procedures
other than those specified herein may result in hazardous radiation
exposure.

• 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.

Outputs
PHONES:
(stereo phone jack)

accepts headphones of 8 ohms or more

MD (VIDEO) OUT:
(phono jacks)

voltage 250 mV
impedance 1 kilohms

WOOFER OUT (phono jack):

voltage 1 V, impedance 1 kilohm

FRONT SPEAKER:

accepts impedance of 6 to 16 ohms

CENTER SPEAKER:

accepts impedance of 8 to 16 ohms

REAR SPEAKER:

accepts impedance of 8 to 16 ohms

FRONT SPEAKER:

accepts impedance of 6 to 16 ohms
(SUPER WOOFER)
accepts impedance of 6 to 16 ohms
(TWEETER & WOOFER)

FRONT SPEAKER:

accepts impedance of 6 to 16 ohms

Inputs
GAME INPUT (phono jack):

1 V p-p, 75 ohms

Outputs
VIDEO OUT (phono jack):

1 V p-p, 75 ohms

System

Compact disc and digital audio system

Laser

Semiconductor laser
(

λ

=795nm), Emission

duration: continuous

Frequency response

2 Hz – 20 kHz (±0.5 dB)

Signal-to-noise ratio

More than 90 dB

Dynamic range

More than 90 dB

Video color system format

NTSC, PAL

Recording system

4-track 2-channel stereo

Frequency response

40 – 13,000 Hz (±3 dB),
using Sony TYPE I cassette

Wow and flutter

±0.15% W.Peak (IEC)
0.1% W.RMS (NAB)
±0.2% W.Peak (DIN)

FM stereo, FM/AM superheterodyne tuner

Tuning range

87.5 – 108.0 MHz
(50 kHz step)

Antenna

FM lead antenna

Antenna terminals

75 ohms unbalanced

Intermediate frequency

10.7 MHz

Tuning range
Middle Eastern 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

Power requirements
Saudi Arabian model:

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

Thai model:

220 V AC, 50/60 Hz

Other models:

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

Power consumption
LBT-XGV10AV

230 watts

LBT-XGV8

320 watts

LBT-XGV6

180 watts

Dimensions (w/h/d)

Approx. 355 x 425 x 451 mm

Mass:
LBT-XGV10AV

Approx. 15.4 kg

LBT-XGV8

Approx. 16.4 kg

LBT-XGV6

Approx. 14.7 kg

Supplied accessories:

AM loop antenna (1)
FM lead antenna (1)
Speaker cords (XGV6, XGV8 (4),
XGV10AV (5))
Speaker pads (XGV6, XGV8 (8),
XGV10AV (12))
Remote commander (1)
Batteries (2)
Video connecting cable (1)

Design and specifications are subject to change witho fi notice.

3

0

0

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 waveforms is output three times.

XGV10AV : SP model

XGV10AV : TH model

XGV8 : SP model

XGV6 : TH model

XGV6 : SP model

XGV10AV : EA model

4-238-825-2

s

4-238-825-3

s

4-238-825-4

s

4-238-825-5

s

4-238-825-6

s

4-238-825-7

s

PART No.

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7-1. Circuit Board Location ······················································ 23
7-2. Block Diagram – CD Servo Section – ······························· 24

Block Diagram – Tuner/Tape Deck Section – ··················· 25
Block Diagram – Main Section – ······································ 26
Block Diagram

       – Display/Key Control/Power Supply  Section – ·········· 27

7-3. Printed Wiring Board – BD Section – ······························· 28
7-4. Schematic Diagram – BD Section – ·································· 29
7-5. Schematic Diagram –Video (1/2) Section – ······················ 30
7-6. Schematic Diagram –Video (2/2) Section – ······················ 31
7-7. Printed Wiring Board – Video Section – ··························· 32
7-8. Printed Wiring Board – Motor, LED Section – ················· 33
7-9. Schematic Diagram –Motor, LED Section – ····················· 33
7-10. Schematic Diagram – Main (1/3) Section – ······················ 34
7-11. Schematic Diagram – Main (2/3) Section – ······················ 35
7-12. Schematic Diagram – Main (3/3) Section – ······················ 36
7-13. Printed Wiring Board – Main Section – ···························· 37
7-14.Printed Wiring Board

   – CD-L,CD-R,Headphone,Front Input,D-SW Section – ·· 38

7-15.Schematic Diagram

   – CD-L,CD-R,Headphone,Front Input,D-SW Section – ·· 39

7-16.Printed Wiring Board – Panel VR Section – ······················ 40
7-17. Schematic Diagram – Panel VR Section – ························ 41
7-18. Printed Wiring Board  – Panel FL,TC-A,TC-B Section – · 42
7-19. Schematic Diagram – Panel FL,TC-A,TC-B Section – ····· 43
7-20. Printed Wiring Board – PA Section (XGV10AV) – ··········· 44
7-21. Schematic Diagram – PA Section (XGV10AV) – ············· 45
7-22. Printed Wiring Board – PA Section (XGV6/XGV8) – ······ 46
7-23. Schematic Diagram – PA Section (XGV6/XGV8) – ········· 47
7-24. Schematic Diagram – Sub Amp Section (XGV10AV) – ·· 48
7-25. Schematic Diagram – Sub Amp Section (XGV8) – ·········· 49
7-26. Printed Wiring Board

 – Sub Amp Section (XGV10AV/XGV8) – ························· 50

7-27. Schematic Diagram – MIC/Guitar Section – ····················· 51
7-28. Printed Wiring Board – MIC/Guitar Section – ·················· 51
7-29. Printed Wiring Board – Prologic Section (XGV10AV) – ·· 52
7-30. Schematic Diagram – Prologic Section (XGV10AV) – ···· 53
7-31. Printed Wiring Board – Trans,Sub Trans Section – ·········· 54
7-32. Schematic Diagram – Trans,Sub Trans Section – ·············· 55
7-33. IC Pin Function Description ············································· 56
7-34. IC Block Diagram ····························································· 63

8-1. Case,Back Panel Section ··················································· 66
8-2. Front Panel Section-1 ························································ 67
8-3. Front Panel Section-2 ························································ 68
8-4. Chassis Section ·································································· 69
8-5. CD Mechanism Deck Section
        (CDM37B-30BD62) ··························································· 70
8-6. Base Unit Section (BU-30BD62) ······································ 71

······································· 72

• Abbreviation

SP : Singapore model
TH : Thai model
EA : Saudi Arabia model

4

CN201

MAIN board

CN151

CN152

CN202

PROLOGIC board

Jig (J-2501-216-A)

The special jig (J-2501-216-A) is useful for checking the PROLOGIC board.