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:
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:
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
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.
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
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
• 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.
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
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.
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.
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.
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.
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
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.
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)
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)
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
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.
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
2.5A
(LPS)
DC CABLES x4
CONNECTOR TERMINALS x2
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.
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).
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.
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.
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.
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).
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.
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).
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
DC OUT
Keypad
DC IN
DC IN
A
, C GND
GND
B
, D 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.
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
(+BVTP
3
× 8)
RB screw
(+BVTT
(+BVTT
4
× 8)
CN906 (2P)
screw
(+BVTT
(+BVTT
4
× 8)
RT D.C fan
RE bracket (M)
two screws
(+BVTP
(+BVTP
3
× 8)
two screws
(flat head (TP))
two screws
(flat head (TP))
case (ADP)