Sony ICD-PX312 / ICD-PX312D / ICD-PX312F / ICD-PX312 M / ICD-PX312M (serv.man2) Service Manual ▷ View online
ICD-PX312/PX312D/PX312F/PX312M
25
IC902 XC9129D45CDR (MAIN Board (6/6))
5
4
3
2
1
6
7
8
9
9
10
PHASE
COMPENSATION
CURRENT SENSE,
LIMIT,PFM
PWM/PFM
CONTROLLER,LOGIC
BUFFER
DRIVER
EN.
THERMAL SHUTDOWN
VREF WITH
SOFT START
NC
EN
BAT
ERROR AMP
PWM
COMPARATOR
LX
PGND
NC
AGND
MODE
VOUT
FB
RAMP WAVE
GENERATOR
OSC
MODE
IC903 MM3273BURE (MAIN Board (6/6))
GND 2
VDD
4
VOUT
3
+
–
CURRENT
LIMIT
BIAS
VREF
CE 1
ICD-PX312/PX312D/PX312F/PX312M
26
IC904 MM3271AURE (MAIN Board (6/6))
GND 2
VDD
4
VOUT
3
+
–
CURRENT
LIMIT
BIAS
VREF
CE 1
IC905 MM3404A10URE (MAIN Board (6/6))
IC906 MM3404A29URE (MAIN Board (6/6))
IC908 MM3404A18URE (MAIN Board (6/6))
IC906 MM3404A29URE (MAIN Board (6/6))
IC908 MM3404A18URE (MAIN Board (6/6))
VOUT
3
CE 1
GND 2
VDD
4
+
–
VOLTAGE
REFERENCE
CURRENT
LIMIT
BIAS
IC909 RP114N311D-TR-FE (MAIN Board (6/6))
2
3
GND
1
VCC
CE
4 NC
5 VOUT
VREF
CURRENT
LIMIT
ICD-PX312/PX312D/PX312F/PX312M
27
IC910 S-1137A31-I6T2G (MAIN Board (6/6))
6 VIN
5 VSS
4 CE
POWER OFF
CIRCUIT
OVERCURRENT
PROTECT CIRCUIT
SOFT START
CIRCUIT
REFERENCE
VOLTAGE
CIRCUIT
1
VOUT
2
VSS
3
SSC
IC911 PST8117UL (MAIN Board (6/6))
VOUT 1
VDD 2
GND
4
NC
3
+
–
VREF
ICD-PX312/PX312D/PX312F/PX312M
28
IC961 TK77335AM4 (MAIN Board (6/6))
VIN
VREF
Nȍ
7
8 NC
VOUT
6 NC
5 NP
2
NC 1
GND 3
VCONT 4
ON/OFF
CONTROL
THERMAL
&
OVER CURRENT
PROTECTION
IC962 PST8134UL (MAIN Board (6/6))
VOUT 1
VDD 2
GND
4
NC
3
+
–
VREF
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