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Model
LBT-ZTX7 MHC-GTX777 MHC-GTX888 SS-GTX777 SS-GTX888 SS-RSX777 SS-RSX888 SS-WG888A SS-WG888B SS-ZTX7
Pages
11
Size
354.8 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
lbt-ztx7-mhc-gtx777-mhc-gtx888-ss-gtx777-ss-gtx888.pdf
Date

Sony LBT-ZTX7 / MHC-GTX777 / MHC-GTX888 / SS-GTX777 / SS-GTX888 / SS-RSX777 / SS-RSX888 / SS-WG888A / SS-WG888B / SS-ZTX7 Service Manual ▷ View online

1
Ver. 1.1  2008. 07
SERVICE MANUAL
US Model
SS-ZTX7
AEP Model
SS-GTX777/RSX777
E Model
SS-GTX777/GTX787/GTX888/RSX777/
RSX888/WG888A/WG888B
Australian Model
SS-GTX888/RSX888/WG888A/WG888B
Sony Corporation
Audio & Video Business Group
Published by Sony EMCS (Malaysia) PG Tec
9-890-505-02
2008G08-1
© 2008. 07
SPEAKER SYSTEM
(SS-WG888A)
(SS-GTX787)
(SS-ZTX7)
(SS-GTX888)
(SS-GTX777)
(SS-RSX777)
•  SS-GTX777 is the front speaker in MHC-GTX777.
•  SS-GTX787 is the front speaker in MHC-GTX787.
•  SS-GTX888 is the front speaker in MHC-GTX888.
•  SS-RSX777 is the surround speaker in MHC-GTX777.
•  SS-RSX888 is the surround speaker in MHC-GTX888.
•  SS-WG888A is the subwoofer speaker in MHC-GTX888.
•  SS-WG888B is the subwoofer speaker in MHC-GTX888.
•  SS-GTX777P is the package speaker of front and surround speakers in MHC-GTX777.
•  SS-GTX787P is the package speaker of front speakers in MHC-GTX787.
•  SS-GTX888P is the package speaker of front and surround speakers in MHC-GTX888.
•  SS-WG888P is the package subwoofer of subwoofer A and subwoofer B in MHC-GTX888.
•  SS-ZTX7 is the front speaker in LBT-ZTX7.
(SS-WG888B)
(SS-RSX888)
SS-GTX777/GTX787/GTX888/RSX777/
RSX888/WG888A/WG888B/ZTX7
SS-GTX777P/GTX787P/GTX888P/WG888P
SPECIFICATIONS
Front speaker (SS-GTX888)
Speaker system 
2-way, 2-driver, Bass refl ex
Speaker unit 
 
Woofer: 
200 mm (8 inches), cone type
 
Tweeter: 
25 mm (1 inch), horn type
Rated impedance 
8 ohms
Dimensions (w/h/d)  Approx. 280 × 400 × 315 mm
 
 
(11 1/8 × 15 3/4 × 12 1/2 inches)
Mass 
Approx. 6.6 kg (14 lb 9 oz) 
 
 
net per speaker
Surround speaker (SS-RSX888)
Speaker system 
2-way, 2-driver, Bass refl ex
Speaker units 
 
Woofer: 
100 mm (4 inches), cone type
 
Tweeter: 
40 mm (1 1/2 inches), horn type
Rated impedance 
24 ohms
Dimensions (w/h/d)  Approx. 180 × 400 × 235 mm
 
 
(7 1/8 × 15 3/4 × 9 3/8 inches)
Mass 
Approx. 3.0 kg (6 lb 10 oz) 
 
 
net per speaker
Subwoofer A (SS-WG888A)/
Subwoofer B (SS-WG888B)
Subwoofer system 
1-way, 1-driver, Bass refl ex
Speaker units
 
Subwoofer: 
250 mm (10 inches), cone type
Rated impedance 
6 ohms
Dimensions (w/h/d)  Approx. 400 × 370 × 370 mm 
 
 
(15 3/4 × 14 5/8 × 14 5/8 inches)
Mass 
Approx. 8.3 kg (18 lb 5 oz)
Front speaker (SS-GTX787/SS-ZTX7)
Speaker system 
2-way, 3-driver, Bass refl ex
Speaker unit
 
Woofer:  
200 mm (8 inches), cone type × 2
 
Tweeter:  
25 mm (1 inch), horn type
Rated impedance 
4 ohms
Dimensions (w/h/d)  Approx. 300 × 600 × 340 mm
 
 
(11 7/8 × 23 5/8 × 13 1/2 inches)
Mass 
Approx. 11.0 kg (24 lb 5 oz) 
 
 
net per speaker
Front speaker (SS-GTX777)
Speaker system 
2-way, 2-driver, Bass refl ex
Speaker unit
 
Woofer:  
200 mm (8 inches), cone type
 
Tweeter:  
25 mm (1 inch), horn type
Rated impedance 
8 ohms
Dimensions (w/h/d)  Approx. 280 × 400 × 315 mm
 
(11 1/8 × 15 3/4 × 12 1/2 inches)
Mass 
Approx. 6.6 kg (14 lb 9 oz) 
 
 
net per speaker
Surround speaker (SS-RSX777)
Speaker system 
2-way, 2-driver, Bass refl ex
Speaker units 
 
Woofer: 
200 mm (8 inches), cone type
 
Tweeter: 
25 mm (1 inch), horn type
Rated impedance 
8 ohms
Dimensions (w/h/d)  Approx. 280 × 400 × 315 mm
 
(11 1/8 × 15 3/4 × 12 1/2 inches)
Mass 
Approx. 6.6 kg (14 lb 9 oz) 
 
 
net per speaker
2
SS-GTX777/GTX787/GTX888/RSX777/RSX888/WG888A/WG888B/ZTX7
• JIG
  When disassembling the set, use the following jig (for front panel 
removal).
  Part No.: J-2501-238-A JIG FOR SPEAKER REMOVAL
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 fl ow) 
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
SS-GTX777/GTX787/GTX888/RSX777/RSX888/WG888A/WG888B/ZTX7
1-1. PRINTED  WIRING  BOARD (SS-WG888A)
SECTION 1
DIAGRAMS
Note on Printed Wiring Boards:
•  
X  : parts extracted from the component side.
• 
 : Pattern from the side which enables seeing.
  (The other layers' patterns are not indicated.)
•  Indication of transistor.
S1400
D1400
1
4
CN1400
SUBWOOFER
LEVEL
SUBWOOFER
ON/OFF
SUBWOOFER
ON/OFF
1
2
3
4
5
6
7
A
B
C
D
E
F
G
H
1-876-064-
 SW PANEL BOARD
11
(11)
4.SW-LED
3.SW-VOL
2.DGND
1.+4V
Q1400
R1402
R1403
R1405
D1401
R1406
S1401
HCD-GTX888
BE
These are omitted.
B E
C
Q
4
SS-GTX777/GTX787/GTX888/RSX777/RSX888/WG888A/WG888B/ZTX7
1-2. SCHEMATIC  DIAGRAM (SS-WG888A) 
Note on Schematic Diagram:
•  All capacitors are in μF unless otherwise noted.  (p: pF) 50 
WV or less are not indicated except for electrolytics and tan-
talums.
•  All resistors are in 
Ω and 
1
/
W or less unless otherwise speci-
fi
 ed.
•  C  : panel designation.
•  A  : B+ Line.
•  Voltages are dc with respect to ground in service mode.
  no mark : POWER ON
•  Voltages are taken with a VOM (Input impedance 10 M
Ω).
  Voltage variations may be noted due to normal production 
tolerances.
SLR-325MCT31
D1400
1k
R1403
S1400
2SC3052EF-T1-LEF
Q1400
S1401 50k
4.7k
R1402
1/10W
220
R1405
MAZ8033G0LS0
D1401
1
2
3
4
WHT
4P
CN1400
+4V
DGND
SW VOL
SW-LED
1/10W
150
R1406
SW PANEL BOARD
POWER ON LED
HCD-GTX888
SUBWOOFER
ON/OFF
SUBWOOFER
ON/OFF
SUBWOOFER
LEVEL
1
2
3
4
5
6
7
A
B
C
D
E
0.8
0.1
Page of 11
Display

Sony LBT-ZTX7 / MHC-GTX777 / MHC-GTX888 / SS-GTX777 / SS-GTX888 / SS-RSX777 / SS-RSX888 / SS-WG888A / SS-WG888B / SS-ZTX7 Service Manual ▷ Download

  • DOWNLOAD Sony LBT-ZTX7 / MHC-GTX777 / MHC-GTX888 / SS-GTX777 / SS-GTX888 / SS-RSX777 / SS-RSX888 / SS-WG888A / SS-WG888B / SS-ZTX7 Service Manual ↓ Size: 354.8 KB | Pages: 11 in PDF or view online for FREE
  • Here you can View online or download the Service Manual for the Sony LBT-ZTX7 / MHC-GTX777 / MHC-GTX888 / SS-GTX777 / SS-GTX888 / SS-RSX777 / SS-RSX888 / SS-WG888A / SS-WG888B / SS-ZTX7 in PDF for free, which will help you to disassemble, recover, fix and repair Sony LBT-ZTX7 / MHC-GTX777 / MHC-GTX888 / SS-GTX777 / SS-GTX888 / SS-RSX777 / SS-RSX888 / SS-WG888A / SS-WG888B / SS-ZTX7 Audio. Information contained in Sony LBT-ZTX7 / MHC-GTX777 / MHC-GTX888 / SS-GTX777 / SS-GTX888 / SS-RSX777 / SS-RSX888 / SS-WG888A / SS-WG888B / SS-ZTX7 Service Manual (repair manual) includes:
  • Disassembly, troubleshooting, maintenance, adjustment, installation and setup instructions.
  • Schematics, Circuit, Wiring and Block diagrams.
  • Printed wiring boards (PWB) and printed circuit boards (PCB).
  • Exploded View and Parts List.