Sony PCS-G70N Service Manual page 50

No.8
TI-DSP(DEC) (IC501/DSP-113)
Check the power supply No
Is FB702/DSP-113
+3.3 V (±10%)?
Yes
No
Check the power supply
Is FB701/DSP-113
+1.4 V (±10%)?
Yes
No
Check the clock
Is pin 3 of X601/DSP-113
50 MHz?
Yes
No
Are other SH bus devices
/DSP-113 OK?
Yes
Check the IC501/DSP-113,
or the peripheral circuit.
4-12 (E)
TI-DSP(MCU) (IC801/DSP-113)
Check the
IC2401/DSP-113,
or the peripheral circuit.
Check the
IC2402/DSP-113,
or the peripheral circuit.
Check the
IC501, X601/DSP-113,
or the peripheral circuit.
Check the followings
. IC101/CPU-382,
or the peripheral circuit
. Bus buffers
(IC2301-IC2307/DSP-113)
or the peripheral circuit
. B to B connector,
or the peripheral circuit
No.9
No
Check the power supply
Is FB1002/DSP-113
+3.3 V (±10%)?
Yes
Check the power supply No
Is FB1001/DSP-113
+1.4 V (±10%)?
Yes
No
Check the clock
Is pin 3 of X901/DSP-113
50 MHz?
Yes
No
Are other SH bus devices
/DSP-113 OK?
Yes
Check the IC801/DSP-113,
or the peripheral circuit.
Check the
IC2401/DSP-113,
or the peripheral circuit.
Check the
IC2402/DSP-113,
or the peripheral circuit.
Check the
IC801, X901/DSP-113,
or the peripheral circuit.
Check the followings
. IC101/CPU-382,
or the peripheral circuit
. Bus buffers
(IC2301-IC2307/DSP-113)
or the peripheral circuit
. B to B connector,
or the peripheral circuit
PCS-G70N/G70NP/G70NP2
PCS-G70S/G70SP