Service manual CP 385 / CP785
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* STR-F6653 oscillating operation
T O P I N 4 SM PS
2
3
1
5
G N D
R804
C850
OCP/FB
From PIN 6
SM PS
( F E E D B A C K )
SOURCE
R808
D R A I N
D R I V E
OSC
Rg2
Rg1
Comp.2
Comp.1
C1
R1
STR-F6653
1.35mA
V th(1)
V th(2)
Oscillating operation
O N
O N
O N
O F F
O F F
O F F
M
O S F E T s w i t c h i n g O N / O F F
V
D S
( M O S F E T d r a i n - s o u r c e v o l t a g e )
I
D
( M O S F E T d r a i n c u r r e n t )
P i n 1
( O C P / F B )
0 V
0 . 7 3 V
( S T R - F 6 6 5 3
i n t e r n a l c a p a c i t o r )
C 1
3 . 7 V
6 . 5 V
1
3
2
4
Waveforms during oscillating operation
Summary of Contents for DTA-20 T1
Page 17: ...Service manual CP 385 CP785 16...
Page 21: ...Service manual CP 385 CP785 20...
Page 34: ...Service manual CP 385 CP785 33 5 Circuit description 5 1 Block diagram...
Page 39: ...Service manual CP 385 CP785 38 Chassis block diagram IF...
Page 43: ...Service manual CP 385 CP785 42 Sound signal flow diagram...
Page 70: ...69 Service Manual cp 385 cp 785 7 Exploded View 7 1 DTA 20T1...
Page 73: ...72 7 4 DTA 20T8 Service Manual cp 385 cp 785...
Page 74: ...73 7 5 DTA 21T1 Service Manual cp 385 cp 785...
Page 76: ...75 7 7 DTA 21T5 Service Manual cp 385 cp 785...
Page 77: ...76 7 8 DTA 21T9 Service Manual cp 385 cp 785...
Page 79: ...78 Service Manual cp 385 cp 785 7 10 DTE 25G6...
Page 80: ...79 Service Manual cp 385 cp 785 7 11 DTE 25G7...
Page 82: ...81 7 13 DTE 28G6 Service Manual cp 385 cp 785...
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