AIR-SA17TI - Sony Audio Service Manual (repair manual)

2009I05-1

© 

2009.09

•  AIR-SA17Ti is the output and tuner section in ALT-SA31iR.
  And, there is single sales, too.

•  “S-AIR” and its logo are trademarks of Sony Corporation.
•  The Bluetooth word mark and logos are owned by the Bluetooth SIG, Inc. and any use of such marks by 

Sony Corporation is under license. Other trademarks and trade names are those of their respective owners.

•  iPod is a trademark of Apple Inc., registered in the U.S. and other countries.
•  iPhone is a trademark of Apple Inc.
•  All other trademarks and registered trademarks are of their respective holders. In this manual, ™ and ® 

marks are not specifi ed.

AUDIO OUT:

voltage 775 mV, impedance 
47 kilohms

VIDEO OUT:

Max. output level 1 Vp-p, 
unbalanced, Sync. negative, load 
impedance 75 ohms (Composite 
Video Out)

FM tuner:

Tuning range:

87.5 — 108.0 MHz (100 kHz 
step)

Antenna:

FM lead antenna

Antenna terminals:

75 ohms unbalanced

Intermediate frequency:

10.7 MHz

Power requirements:

120 V AC, 60 Hz

Power consumption:

15 watts

Dimensions (w/h/d) (excluding the AC 
power supply unit):

Approx. 295 × 43 × 110 mm 
(11 

5

/

8

 × 1 

3

/

4

 × 4 

3

/

8

 in.)

Mass (including the AC power supply 
unit): 

Approx. 1.1 kg (2 lb. 6.8 oz.)

Supplied accessories: Wireless 
transceiver (EZW-RT10A) (1)/
Remote commander (RM-ANU069) (1)/
R03 (size AAA) batteries (2)/
FM lead antenna (1)/
Universal Dock Adapter for iPhone (1)/
Universal Dock Adapter for iPhone 3G 
(1)

Design and specifications are subject 
to change without notice.

You can use the following iPod/iPhone 
models on the unit. Update your iPod/
iPhone with the latest software before 
using it.

iPod touch  

2nd generation

iPod nano  

4th generation 

(video)

iPhone 3G

iPod touch

1st generation

iPod nano 3rd

generation (video)

iPod classic

iPhone

iPod nano 2nd 

generation 

(aluminum)

iPod 5th 

generation (video)

iPod nano 1st 

generation

iPod 4th generation 

(color display)

iPod 4th 

generation 

iPod mini 

Communication System:

S-AIR Specification version 1.0

Frequency band:

2.4000 GHz — 2.4835 GHz

Modulation method:

DSSS

Power requirements:

DC 3.3 V, 350 mA

Dimensions (w/h/d):

50 × 13 × 60 mm  
(2 × 

17

/

32

 × 2 

3

/

8

 in.)

Mass:

24 g (1 oz.)

  .............................................   3

2-1. Disassembly 

Flow 

...........................................................   4

2-2.  Tuner (FM), Panel Top Block .........................................   4
2-3.  TX-IF Board, Holder (SAIR) ..........................................   5
2-4. MAIN 

Board 

...................................................................   5

TEST  MODE 

 ............................................................   6

ELECTRICAL  CHECK 

 .........................................   7

5-1.  Schematic Diagram - MAIN Board (1/3) - .....................   9
5-2.  Schematic Diagram - MAIN Board (2/3) - .....................   10
5-3.  Schematic Diagram - MAIN Board (3/3) - .....................   11
5-4.  Printed Wiring Board - MAIN Board (Side A) - ............   12
5-5.  Printed Wiring Board - MAIN Board (Side B) - ............   13
5-6.  Printed Wiring Board - TX-IF Board - ...........................   14
5-7.  Schematic Diagram - TX-IF Board - ..............................   15
5-8.  Schematic Diagram - LED Section - ..............................   16
5-9.  Schematic Diagram - POWER Board - ..........................   17
5-10. Printed Wiring Boards 

- LED, POWER SUPPLY Section - ................................   18

6-1. Overall 

Section 

...............................................................  23

6-2.  Top Panel Section ...........................................................   24
6-3.  Bottom Panel Section ......................................................   25

  ..............................   26

Accessories are given in the last of the electrical parts list.

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.

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)

0  OR  DOTTED  LINE  

0  ON  THE  SCHEMATIC  DIAGRAMS  AND  IN  

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)

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.

NOTE  THE  S-AIR  COMMUNICATION  CONFIRMING
EZW-RT10A of the attachment is necessary for the confi rmation of 
S-AIR communication.
Confi rm S-AIR after inserting EZW-RT10A in the set (AIR-
SA17Ti).

DIRECTION  OF  EZW-RT10A  INSTALLATION
When EZW-RT10A is install with theTX-IF board detached of the 
set, the label of EZW-RT10A is the under and install.

•  This set can be disassembled in the order shown below.

Note: Follow the disassembly procedure in the numerical order given.

4

8

2 four screws 

u

1 two screws 

5 flexible flat cable (9 core)

0 flexible flat cable (9 core)

9 unweaved cloth

3 five screws 

7 two screws 

u

qa tuner 

qs panel top block

6 connector