Sony NW-E105 - Network Walkman Service Manual - Page 8
Browse online or download pdf Service Manual for Stereo System Sony NW-E105 - Network Walkman. Sony NW-E105 - Network Walkman 24 pages. Portable ic audio player
Also for Sony NW-E105 - Network Walkman: Operating Instructions Manual (46 pages), Notes On Usage (1 pages), Operating Instructions (2 pages), Limited Warranty (1 pages), Quick Start Manual (3 pages)
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NW-E103/E105/E107
• IC Block Diagrams
– MAIN Board –
IC301 NJM2776RB2 (TE2)
V+2
1
OUT R
2
IN R
3
STB_TC
4
BIAS
V+1
5
REG
VREF AMP
IC508 XC62HR2802MR
1
NC
VIN
2
CURRENT
RESTRICTION
CE
3
8
10
GND
9
OUT L
8
IN L
7
X_MUTE
6
VREF
5
VOUT
4
VSS
IC503, IC507 XC9105D091MR
CE
VDD
3
2
VDD
VREF WITH
SOFT START,
CHIP ENABLE
ERROR
AMP
PWM/PFM
CONTROLLER
RAMP WAVE
GENERATOR,
OSC
COMPARATOR
BUFFER,
DRIVER
4
5
GND
EXT
IC801 SM8142BD-G-EL
8
7
Dividing circuit
Oscillator for
boosting voltage and EL driver
1
2
FB
1
CURRENT
RIPPLE DETECTION
AND FB
PHASE
COMPENSATION
PWM
VDD
6
5
High voltage
switching circuit
Dividing circuit
3
4