Panasonic SA-PT660 Technical Manual page 36

Use the protection diagrams for strategy information (p32-33) and the layout diagram (p25-26) to
locate test points. The main strategy below is to first isolate the problem to one of 5 boards.
Board Isolation:
F61 Error Code
1. Even if the fan blades were spinning, replace the fan if the 3 pin CN5501 fan connector
voltages are 7vdc, 0V, and 0.6Vdc (normal = 7V, 0V, 0V) at power on.
2. Isolate the problem to the D Amp board – The problem is on the D Amp board if the unit
remains powered on (no F61 error code) with CN5050 unplugged (disconnected).
3. Isolate the problem to the SMPS board – The problem is on the SMPS board if the unit
remains powered on (no F61 error code) with CN5802/pin 4 removed from the plug and the
connector plugged back into the socket (with wire 4 missing).
F76 Error Code
1. On the Main board, unsolder CN2008/pin 21 OR remove jumper w2866 (layout diagram page 25).
2. Turn the unit ON. Does the Unit shut down with an F76 error code?
a) The unit remains ON (no F76 error code). The problem is on the power supply board or DVD module. Go to C,
next page.
b) The unit still shuts off with an F76 error code. The problem is on the main board or power supply bd. Go to D,
next page.
Slide # 36
F61 / F76 error code Repair procedure (1/2)
See Protect diagrams.
Go to A.
Go to B, next page.
Outline Models:
Wireless SA-PT660
Mech SA-PT760
Pwr Supply SA-PT960
Protection SA-PT1060
Audio SH-FX67, 85