ta7738p Unisonic Technologies, ta7738p Datasheet - Page 3

• Manufacturer Part Number: ta7738p
• Description: Amplifier System For Cassette Tape Recorder
• Manufacturer: Unisonic Technologies

UTC TA7738P
TEST CIRCUIT
SWITCH MODE
UTC
TEST ITEM
600Ω
Rg
VOUT1
VOUT2
GVO1
VNO2
GVO3
VNO3
GV1
GV2
ALC
GV3
PO
SG
SW1
SW5
1
2
3
4.7 µF 3.3kΩ
SW1
UNISONIC TECHNOLOGIES CO., LTD.
1
1
1
1
1
1
1
2
2
2
2
SW6
LINEAR INTEGRATED CIRCUIT
10kΩ
SW2
390kΩ
47 µF
SW1-3
1
1
1
3
3
3
2
1
1
1
1
Inter Lock
1,2=off,
3=on
16
1
5.6kΩ
ALC
1kΩ
1uF
15
Pre
AMP
2
2
22 µF
3
#560pF
1
47 µF
SW2
SW3
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
14
3
1kΩ
560pF
10 µF
22kΩ
Output
Buffer
13
Buffer
AMP
4
4.7 µF
51kΩ
12
5
SW4
Output
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
Filter
ON
Pre
1000pF
11
6
#6.2kΩ
220Ω
# use in measuring the output
10
Power
AMP
7
#560pF
noise voltage
SW5
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
ON
9
8
220 µF
0.068
µF
1000 µF/
10V
QW-R110-009,A
SW6
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
OFF
RL
ON
Vcc
Output
Power
3