STR-ZA1000ES, STR-ZA2000ES, STR-ZA3000ES - Sony Audio Service Manual (repair manual). Page 4

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.

PROTECTOR

The receiver will automatically turn off after a few seconds. Check the following:

There may be an electrical surge or power failure. Unplug the AC power cord (mains lead) and then plug

in the cord again after 30 minutes.

The receiver is covered and the ventilation holes are blocked. Remove the object covering the ventilation

holes of the receiver. (STR-ZA3000ES only)

The impedance of the connected speakers is below the rated impedance range indicated on the back

panel of the receiver. Reduce the volume level.

Unplug the AC power cord (mains lead) and let the receiver cool down for 30 minutes while performing the

following troubleshooting:

Disconnect all of the speakers and subwoofer.

Check that the speaker wires are tightly twisted on both ends.

Connect the front speaker first, increase the volume level and operate the receiver for at least 30 minutes until
it completely warms up. Then, connect each additional speaker one by one and test each additional speaker
until you detect which speaker is causing the protection error.

After checking the above items and fixing any problems, plug in the AC power cord (mains lead) and turn

on the receiver. If the problem persists, consult your nearest Sony dealer.

List of messages after Auto Calibration measurements

Code 31:

Front speakers are not selected properly. Select the front speakers using SPEAKERS and perform the

Auto Calibration again. For details on selecting the front speakers, see “

Selecting the front speakers

.”

Code 32, Code 33:

Speakers were not detected or not connected properly.

None of the front speakers are connected or only one front speaker is connected.

Either the surround left or surround right speaker is not connected.

A surround back speaker is connected only to the SPEAKERS SURROUND BACK/FRONT HIGH/FRONT B/BI-
AMP/ZONE 2 R terminal. If connecting only one surround back speaker, connect it to the SPEAKERS
SURROUND BACK/FRONT HIGH/FRONT B/BI-AMP/ZONE 2 L terminal.

Either the front high left or front high right speaker is not connected.

The optimizer microphone is not connected. Make sure that the optimizer microphone is connected

properly and perform the Auto Calibration again.

If the optimizer microphone is connected properly but the error code still appears, the optimizer

microphone cable may be damaged.

Warning 40:

The measurement process has been completed and a high noise level has been detected. You may be

able to achieve better results if you try the process again in a quiet environment.

Warning 41, Warning 42:

The input from the microphone is too large.

The distance between the speaker and the microphone may be too small. Set them further apart and perform
the measurement again.

Warning 43:

The distance and position of a subwoofer cannot be detected. This may be caused by noise. Try

performing the measurement in a quiet environment.

NO WARNING:

There is no warning information.

Network features message list

Invalid XXX (*):

The entered value is incorrect or invalid.

*

 XXX represents an IP Address, Subnet Mask or Default Gateway.

You can clear all memorized settings and restore the receiver to the factory default settings by the following

procedure. This procedure can also be used to initialize the receiver before you use it for the first time. 

Be sure to use the buttons on the receiver to perform this operation.

1. Turn off the receiver.

2. Hold down 

 (on/standby) on the receiver for 5 seconds.

[MEMORY CLEARING] appears on the display panel for a while, then changes to [MEMORY

CLEARED!] .

Do not turn the receiver off until [MEMORY CLEARED!] appears on the display panel.

Be sure to use the buttons on the receiver to perform this operation.

1. Turn off the receiver.

2. Hold down MULTI ST. and press 

 (on/standby) on the receiver.

[S.F. INITIALIZED!] appears on the display panel and all sound fields are reset to their default setting.

MODEL  IDENTIFICATION
Distinguish the model by part number on back panel.

STR-ZA3000ES: US and Canadian models

4-533-925-0[]

STR-ZA2000ES: US and Canadian models

4-533-925-1[]

STR-ZA1000ES: US and Canadian models

4-533-925-2[]

STR-ZA2000ES: Australian model

4-533-925-3[]

NOTE  THE  REPAIRING  OF  DIGITAL  BOARD
When the DIGITAL board installed in this unit is defective, re-
place the complete mounted board. The mounted parts cannot re-
place with single.
Block diagram and printed wiring board that have been described 
on this service manual are for reference.
Schematic diagram have not described.

NOTE  OF  REPLACING  THE  IC200,  IC2107,  IC2500  
AND  IC2502  ON  THE  AUDIO  BOARD
IC200, IC2107, IC2500 and IC2502 on the AUDIO board cannot 
replace with single. When these parts are damaged, replace the 
complete mounted board.

NOTE  OF  REPLACING  THE  IC981,  IC1701,  IC1721,  
IC1741  AND  IC1761  ON  THE  DCDC  BOARD
IC981, IC1701, IC1721, IC1741 and IC1761 on the DCDC board 
cannot replace with single. When these parts are damaged, replace 
the complete mounted board.

CAPACITOR  ELECTRICAL  DISCHARGE  PROCESSING
When checking the board, the electrical discharge is necessary for 
the electric shock prevention.
Connect the resistor to both ends of respective capacitors.

• 

AMP board: C913, C914

:/2 W 800 :/2 W

• 

Power unit (PU1) (STR-ZA3000ES only): C301

:/2 W

 

Note: Please be careful enough when you work, because this area is 

primary side area.