STR-KM22, STR-KM55, STR-KM77 - Sony Audio Service Manual (repair manual). Page 90

1.0

2014.01

New

1.1

2014.04

Additional of Thai model for STR-KM22.

Additional of E12 model for STR-KM55.

Delete E12 model for STR-KM77.

Delete Australian model for STR-KM55.

Change of MAIN, STANDBY, SUB RECTIFIER and NFC CHAIN boards (suffi x 12).

Delete ADAPTOR, CONVERSION (E51) in page 65 and 87.

Service code change for IC2700 in MAIN board.

Change P/N and description of CN2700 in MAIN board.

Change P/N and description of CN3005 in HDMI RE PC board.

1.2

2014.09

Change P/N and description for ET3000 and ET3001 in HDMI RE PC board.

Change P/N and description for D3003 and D3004 in HDMI RE PC board.

Change P/N and description for D902, D903, D904 and D905 in STANDBY board.

Change description of IC5002 in DSP board.

Delete C508, C982, R507, R508 and  D942 in MAIN board.

1.3

2015.07

Change P/N and description for R918 and R919 in STANDBY board.

Change P/N for IC5000 in DSP board.

Change P/N for IC2903 in MAIN board (Service code changed).

Delete CN5000 and CN5003 in DSP board.

How to search for a contact point of signal lines or the like in DIAGRAMS SECTION
If a contact point of a BLOCK DIAGRAM, PRINTED WIRING BOARD or SCHEMATIC DIAGRAM is shown in a different page, use
the PDF fi le search function to fi nd one.

e.g.) If a contact point is shown as 

 , follow the procedure below.

Procedure:
1. Press the [F] key while pressing the [Ctrl] key.
2. Input “>001Z” in the search box and press the [Enter] key.
3. The relevant part (page), where the contact point is shown, appears.
Note: If you still see the original page, press the [Enter] key again.