Sony PCS-G70N Service Manual page 55

Video communication system
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No.20-1
VideoENC (IC1501/DSP-113)
No
Check the power supply
Is pin 6 of IC1501/DSP-113
+3.3 V (±10%)?
Yes
Check the clock
No
Is JC1505/DSP-113
27 MHz?
Yes
Check the
IC1501/DSP-113,
or the peripheral circuit.
No.20-3
VideoENC (IC1503/DSP-113)
Check the power supply
No
Is pin 6 of IC1503/DSP-113
+3.3 V (±10%)?
Yes
Check the clock
No
Is JC1510/DSP-113
27 MHz?
Yes
Check the
IC1503/DSP-113,
or the peripheral circuit.
PCS-G70N/G70NP/G70NP2
PCS-G70S/G70SP
Check the
IC1505/DSP-113,
or the peripheral circuit.
Check the
IC105, IC103, IC102,
X101/DSP-113,
or the peripheral circuit.
Check the
IC1505/DSP-113,
or the peripheral circuit.
Check the
IC105, IC103, IC102,
X101/DSP-113,
or the peripheral circuit.
No.20-2
VideoENC (IC1502/DSP-113)
No
Check the power supply
Is pin 6 of IC1502/DSP-113
+3.3 V (±10%)?
Yes
No
Check the clock
Is JC1506/DSP-113
27 MHz?
Yes
Check the
IC1502/DSP-113,
or the peripheral circuit.
No.20-4
VideoENC (IC1504/DSP-113)
Check the power supply
No
Is pin 6 of IC1504/DSP-113
+3.3 V (±10%)?
Yes
No
Check the clock
Is JC1511/DSP-113
27 MHz?
Yes
Check the
IC1504/DSP-113,
or the peripheral circuit.
Check the
IC1505/DSP-113,
or the peripheral circuit.
Check the
IC105, IC103, IC102,
X101/DSP-113,
or the peripheral circuit.
Check the
IC1505/DSP-113,
or the peripheral circuit.
Check the
IC105, IC103, IC102,
X101/DSP-113,
or the peripheral circuit.
4-17 (E)

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