HCD-XGR90AV, LBT-XGR90AV — Sony Audio Service Manual (repair manual)

Model
HCD-XGR90AV LBT-XGR90AV
Pages
78
Size
5.87 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hcd-xgr90av-lbt-xgr90av.pdf
Date

View Sony HCD-XGR90AV / LBT-XGR90AV Service Manual online

MIX MIC:
(phone jack)
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
FRONT, REAR, CENTER, WOOFER (phono jacks):
sensitivity 450 mV,
impedance 47 kilohms
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
HCD-XGR90AV
E Model
Australian Model
COMPACT Hi-Fi STEREO SYSTEM
— Continued on next page —
SPECIFICATIONS
• HCD-XGR90AV is the Amplifier,
CD player, tape deck and tuner
section in LBT-XGR90AV.
Ver. 1.1  2006.02
9-873-955-02
2006B02-1
© 2006.02
Model Name Using Similar Mechanism
HCD-XGR80
CD
CD Mechanism Type
CDM37B-30BD60C
Section
Base Unit Name
BU-30BD60C
Optical Pick-up Name
A-MAX.3
TAPE
Model Name Using Similar Mechanism
HCD-XGR80
Section
SERVICE MANUAL
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
Amplifier section
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)
Inputs
GUITAR:
(phone jack)
sensitivity 75 mV,
impedance 470 kilohms
PHONO IN:
(phono jacks)
sensitivity 3 mV,
impedance 47 kilohms
2
HCD-XGR90AV
This appliance is classified as a CLASS 1 LASER product. The
CLASS 1 LASER PRODUCT 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 radiation
exposure.
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.
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.
Video section
Inputs
VIDEO IN (phono jack):
1 V p-p, 75 ohms
GAME IN (phono jack):
1 V p-p, 75 ohms
Output
VIDEO OUT (phono jack):
1 V p-p, 75 ohms
CD player section
System
Compact disc and digital audio system
Laser
Semiconductor laser
(
λ
=795 nm), 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
CD OPTICAL DIGITAL OUT
(Square optical connector jack, rear panel)
Wavelength:
660 nm
Output level
–18 dBm
Tape player section
Recording system
4-track 2-channel stereo
Frequency response
40 – 13,000 Hz (±3 dB),
using Sony TYPE I cassette
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
Pan-American model:
530 – 1,710 kHz
(with the interval set at 10 kHz)
531 – 1,710 kHz
(with the interval set at 9 kHz)
Other model:
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 requirement
Australian model:
230 – 240 V AC, 50/60Hz
Other model:
120 V, 220 V or 230 –240 V AC,
50/60 Hz
Adjustable with voltage selector
Power consumption
230 watts
Dimensions (w/h/d)
Approx. 355 x 425 x 451 mm
Mass :
Approx. 15.4 kg
Supplied accessories:
AM loop antenna (1)
FM lead antenna (1)
Speaker cords (5)
Speaker pads (12)
Remote commander (1)
Batteries (2)
Design and specifications are subject to change without notice.
3
HCD-XGR90AV
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 waveforms is output three times.
• MODEL IDENTIFICATION
– Rear Panel –
MODEL
E model
Australian model
PARTS No.
4-238-825-0
s
4-238-825-1
s
PART No.
TABLE OF CONTENTS
1. SERVICING NOTE
·························································· 4
2. GENERAL
·········································································· 5
3. DISASSEMBY
··································································· 7
4. TEST MODE
···································································· 15
5. MECHANICAL ADJUSTMENTS
····························· 17
6. ELECTRICAL ADJUSTMENTS
······························· 17
7. DIAGRAMS
7-1. Circuit Board Location ······················································ 21
7-2. Block Diagram – CD Servo Section – ······························· 22
Block Diagram – Tuner/Tape Deck Section – ··················· 23
Block Diagram – Main Section – ······································ 24
Block Diagram
       – Display/Key Control/Power Supply  Section – ·········· 25
7-3. Printed Wiring Board – BD Section – ······························· 26
7-4. Schematic Diagram – BD Section – ·································· 27
7-5. Printed Wiring Board – Motor, LED Section – ················· 28
7-6. Schematic Diagram –Motor, LED Section – ····················· 28
7-7. Schematic Diagram – MIC/Guitar Section – ····················· 29
7-8. Printed Wiring Board – MIC/Guitar Section – ·················· 29
7-9. Schematic Diagram – Main (1/3) Section – ······················ 30
7-10. Schematic Diagram – Main (2/3) Section – ······················ 31
7-11. Schematic Diagram – Main (3/3) Section – ······················ 32
7-12.Printed Wiring Board – Main Section – ····························· 33
7-13.Printed Wiring Board
   – CD-L,CD-R,Headphone,Front Input,D-SW Section – ·· 34
7-14.Schematic Diagram
   – CD-L,CD-R,Headphone,Front Input,D-SW Section – ·· 35
7-15.Printed Wiring Board – Panel VR Section – ······················ 36
7-16. Schematic Diagram – Panel VR Section – ························ 37
7-17. Printed Wiring Board  – Panel FL,TC-A,TC-B Section – · 38
7-18. Schematic Diagram – Panel FL,TC-A,TC-B Section – ····· 39
7-19. Printed Wiring Board – PA Section – ································ 40
7-20. Schematic Diagram – PA Section – ··································· 41
7-21. Printed Wiring Board – Sub Amp Section – ····················· 42
7-22. Schematic Diagram – Sub Amp Section – ························· 43
7-23. Printed Wiring Board – Prologic Section – ······················· 44
7-24. Schematic Diagram – Prologic Section – ·························· 45
7-25. Printed Wiring Board – Trans,Sub Trans Section – ·········· 46
7-26. Schematic Diagram – Trans,Sub Trans Section – ·············· 46
7-27. IC Pin Function Description ············································· 48
7-28. IC Block Diagram ····························································· 53
8. EXPLODED VIEWS
8-1. Case,Back Panel Section ··················································· 56
8-2. Front Panel Section-1 ························································ 57
8-3. Front Panel Section-2 ························································ 58
8-4. Chassis Section ·································································· 59
8-5. CD Mechanism Deck Section
        (CDM-30BD60C) ······························································· 60
8-6. Base Unit Section (BU-30BD60C) ···································· 61
9. ELECTRICAL PARTS LIST
······································· 62
4
HCD-XGR90AV
SECTION 1
SERVICING NOTE
JIG FOR CHECKING PROLOGIC BOARD
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.
5
HCD-XGR90AV
This section is extracted from
instruction manual.
SECTION 2
GENERAL
ALPHABETICAL ORDER
E – G
EDIT  
(16)
EFFECT  
(18)
ENTER 
 (9, 16, 19, 20, 21)
FM MODE 
 (13)
FUNCTION 
 (7, 10, 11, 15, 22,
23, 27)
GAME  
(23)
GAME INPUT AUDIO L/R jacks
 (26)
GAME INPUT VIDEO jack 
(26)
GAME MIXING 
 (23)
GROOVE  
(17)
GUITAR DISTORTION 
 (23)
GUITAR jack 
 (23)
GUITAR LEVEL 
 (23)
A EJECT Z/ Z B EJECT
 (14)
AMS ./ >
 (10, 11)
CD SYNC
 (15)
Direct equalizer
 (18)
GUITAR/ROCK/JAZZ/DANCE/
GAME
SALSA/REGGAE/TANGO/
SAMBA/MOVIE
DIRECTION 
 (14, 15, 22)
 (10, 11)
DISC SKIP
DISC 1 to 5 
DISPLAY
DSP 
 (15, 18)
DVD 5.1CH
 (27)
H – R
H SPEED DUB 
 (15)
MIC LEVEL 
 (21)
MIX GUITAR/KAROKE 
 (21,
23)
MIX MIC jack 
 (21)
P FILE 
 (18, 19)
PHONES jack 
PLAY MODE 
 (10, 11)
POWER SAVE/DEMO
(STANDBY)  
(24)
Power stream indicator 
PRO LOGIC 
 (9, 19)
PUSH OPEN 
 (10)
REPEAT  
(11)
Main unit
A – D
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Download Sony HCD-XGR90AV / LBT-XGR90AV Service Manual (Repair Manual)

Here you can view online or download Sony HCD-XGR90AV / LBT-XGR90AV Service Manual in pdf. This Service Manual can help you recover, restore, fix, disassemble and repair Sony HCD-XGR90AV / LBT-XGR90AV Audio. Information contained in Sony HCD-XGR90AV / LBT-XGR90AV service manual (repair manual) typically includes:

  • Disassembly, troubleshooting, programming, maintenance, remote, adjustment, installation and setup instructions.
  • Schematics, wiring and block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Parts list (bill of materials).