Sony PRS-505/SC - Portable Reader System Service Manual page 33
Portable reader system
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Also See for PRS-505/SC - Portable Reader System:
- Specifications (2 pages) ,
- User manual (190 pages) ,
- Quick start manual (2 pages)
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IC1802 LT3467ES6#TR
SW
1
DRIVER
COMPARATOR
Q
R
S
+
–
GND
2
FB
3
IC1805 LT1931ES5#TR
SW
1
LATCH
Q
S
GND
2
NFB
3
IC1806 TC7W53FK (TE85R)
COMMON 1
INH 2
VEE 3
GND 4
CONVERTER
1.255V
+
REFERENCE
–
–
+
SHUTDOWN
RAMP
GENERATOR
1.3MHz
OSCILLATOR
R
VIN
RAMP
GENERATOR
1.2MHz
OSCILLATOR
8
C
LOGIC
LEVEL
OUT
IN
7
C
OUT
IN
6
5
6
VIN
5
SS
4
SHDN
5
VIN
SHDN
4
VCC
CH 0
CH 1
A
PRS-505
33
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