HS-AC1 - Sony Audio Service Manual (repair manual)

hs-ac1 service manual
Model
HS-AC1
Pages
14
Size
434.95 KB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
hs-ac1.pdf
Date

Read Sony HS-AC1 Service Manual online

SERVICE MANUAL
Sony Corporation
Audio&Video Business Group
Published by Sony Techno Create Corporation
HS-AC1
POWER SUPPLY
9-889-384-01
2009B04-1
© 
2009.02
US Model
SPECIFICATIONS
Power requirements: 
AC 120 V, 60 Hz
Power output:  
DC 19.5 V, 4.5 A (TOTAL)
 
Each output of DC CABLES and DC OUT 
 
connector terminal: 2.5 A (LPS)
 
DC 10 V (LPS), 0.25 A
Power consumption: 
120 V, 1.5 A
Operating temperature: 0 °C - 30 °C (32 °F - 86 °F)
Storage temperature: 
– 20 °C - 60 °C (– 4 °F - 140 °F)
Dimensions: 
190 × 65 × 250 mm (7 
1
/
2
 × 2 
5
/
8
 × 10 inches) 
 (w/h/d)
Mass: 
3.8 kg (8 lbs 5 oz)
Supplied accessory: 
AC power cord (mains lead)
Design and specifi cations are subject to change without notice.
Ver. 1.0  2009.02
HS-AC1
2
SAFETY-RELATED  COMPONET  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.
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.
NOTES  ON  CHIP  COMPONENT  REPLACEMENT
• 
Never reuse a disconnected chip component.
• 
Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
1. GENERAL
 ...................................................................  
3
2. DISASSEMBLY
2-1. D.C 
Fan 
...........................................................................   4
2-2. Power 
Transformer 
.........................................................   5
2-3.  SENSOR Board, AC Board ............................................   5
3. DIAGRAMS
3-1. Printed 
Wiring 
Boards 
....................................................   7
3-2. Schematic 
Diagram 
.........................................................   8
4. EXPLODED 
VIEWS
4-1. Chassis 
Section 
...............................................................   9
4-2.  AC Board Section ...........................................................   10
5. 
ELECTRICAL PARTS LIST ..............................   11
TABLE  OF  CONTENTS
SAFETY  CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs, 
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE  TEST
The AC leakage from any exposed metal part to earth ground and 
from all exposed metal parts to any exposed metal part having a 
return to chassis, must not exceed 0.5 mA (500 microamperes.). 
Leakage current can be measured by any one of three methods.
1.  A commercial leakage tester, such as the Simpson 229 or RCA 
WT-540A. Follow the manufacturers’ instructions to use these 
instruments.
2.  A battery-operated AC milliammeter. The Data Precision 245 
digital multimeter is suitable for this job.
3.  Measuring the voltage drop across a resistor by means of a 
VOM or battery-operated AC voltmeter. The “limit” indication 
is 0.75 V, so analog meters must have an accurate low-voltage 
scale. The Simpson 250 and Sanwa SH-63Trd are examples 
of a passive VOM that is suitable. Nearly all battery operated 
digital multimeters that have a 2 V AC range are suitable. (See 
Fig. A)
1.5 k
Ω
0.15 
μF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A.  Using an AC voltmeter to check AC leakage.
HS-AC1
3
SECTION  1
GENERAL
This section is extracted 
from instruction manual.
Part names and descriptions
19.5V
2.5A
(LPS)
19.5V
2.5A
(LPS)
19.5V
2.5A
(LPS)
19.5V
2.5A
(LPS)
DC CABLES x4
CONNECTOR TERMINALS x2
DC10V
0.25A
(LPS)
DC OUT
GND
19
.5V
2.5
A
( LPS
)
GND
19.5V
2.
5A
( LP
S
)
DC 19.5V = TOTAL4.5A
 DC 10 V and DC 19.5 V cables
To Distribution Panel (HS-MB1)
Connect the DC 10 V cable and DC 19.5 V cables to their respective 
jacks on the side of Distribution Panel (HS-MB1): DC IN 10 V and DC 
IN 19.5 V.
For details, refer to the Distribution Panel (HS-MB1) installer’s manual.
To AV Wall Port (HS- WV1)
Connect the DC 19.5 V cables to the DC IN 19.5 V jacks on the panel 
of AV Wall Port (HS-WV1).
For details, refer to the AV Wall Port (HS-WV1) installer’s manual.
 DC OUT
Connect to the rear of Keypad (HS-KP1) using cords suitable for 
supplying power. 
Connecting power supply cords
You can connect up to two Keypads directly to a Power Supply in 
order to improve sound coverage of the Keypad. For details on Keypad 
connection, refer to the Keypad (HS-KP1) installer’s manual.
You can use any commercially available cord of gauge AWG 18 to AWG 
26. AWG 18 cords are recommended as signal loss is less.
Tip
For a Keypad (HS-KP1) powered via the Distribution Panel (HS-MB1) 
connected to HS-AC1, sound coverage will improve if the Keypad is 
directly connected to HS-AC1 in addition to the Distribution Panel (HS-
MB1).
1 Strip 10 mm (0.4 inch) of insulation off the cords and twist the bare 
wires together tightly.
Note
Do not use a cord that is kinked, tarnished or otherwise damaged.
2 Insert the cords into the plug-in terminal block (supplied) as far as 
they will go. Use a flathead screwdriver to tighten each of the four 
screws. Then, insert the terminal block into DC OUT (for the 
Keypad). 
19.5V
2.5A
(LPS)
19.5V
2.5A
(LPS)
19.5V
2.5A
(LPS)
19.5V
2.5A
(LPS)
DC CABLES
x4
CONNECT
OR TER
MINALS
x2
DC10V
0.25A
(LPS)
DC OUT
GND
19.5V
2.5A
( L
PS
)
GND
19.5V
2.5A
( L
P
S
)
DC 19.5
V = TOT
AL4.5A
Screw
Combinations
This unit
DC OUT
Keypad
DC IN
A
 GND
GND
B
 19.5 V
19.5 V
Note
Be sure to connect the terminals correctly as shown in the table 
above; GND to GND, and DC OUT 19.5 V to DC IN 19.5 V.
Make sure none of the bare wires touch each other. If they do, it 
may cause a short-circuit, which could damage the system.
HS-AC1
4
SECTION  2
DISASSEMBLY
2-1.   D.C  FAN
Note: Follow the disassembly procedure in the numerical order shown below.
• 
This set can be disassembled in the order shown below.
2-1. D.C 
FAN
 (Page 
4)
2-2. POWER 
TRANSFORMER
 (Page 
5)
SET
2-3. SENSOR 
BOARD,
 AC 
BOARD
 (Page 
5)
 two screws
 
(flat head (TP))
 two screws
 
(flat head (TP))
 two screws
 (+BVTP 
× 8)
RB screw
 (+BVTT 
× 8)
 CN906 (2P)
 screw
 (+BVTT 
× 8)
RT D.C fan
RE bracket (M)
 two screws
 (+BVTP 
× 8)
 two screws
 
(flat head (TP))
 two screws
 
(flat head (TP))
 case (ADP)
Page of 14
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Download Sony HS-AC1 Service Manual (Repair Manual)

Here you can read online and download Sony HS-AC1 Service Manual in PDF. HS-AC1 service manual will guide through the process and help you recover, restore, fix, disassemble and repair Sony HS-AC1 Audio. Information contained in service manuals typically includes schematics / circuit diagrams, wiring diagrams, block diagrams, printed wiring boards, exploded views, parts list, disassembly / assembly, pcb.