Panasonic PT-RZ31K - Page 67

INF-57
SECTION 1 SERVICE INFORMATION
<RZ31K/RS30K>
■ Main microprocessor operation check
OK
OK
OK
OK
OK
A
Check the clock waveform at R3622.
35.455MHz
NG
A Check X3501 and peripheral circuit.
A
Check IC3716(FLASH ROM) and peripheral circuit.
(If there are still problems, go to next step.)
A
Check the voltage [3.3V] at pin1 of A1 connector and [5V] at pin
3.
NG
Replace cable [P6] - [A1], and [PF]/[PB]-P.C.Board.
A Check that the voltage is 1.2V at R3826.
NG
A Check IC3821 and peripheral circuit.
A
Check IC3721(SRAM) and peripheral circuit.
(If there are still problems, go to next step.)
A Check IC3501(CPU) and peripheral circuit.