Block Diagrams; Power Block Diagram - JVC HR-J282EU Service Manual

BLOCK DIAGRAMS

1. Power Block Diagram

BD101
!
4
2 1
3
R106 R102
LINE FILTER
BLOCK
(C101,L102,
C102)
!
F101
!
C113
BK WH
(BR) (BL)
PW101
NOTES : Symbol denotes AC ground.
Symbol denotes DC chassis ground.
R101
TRANSFORMER
6
SNUBBER
BLOCK
+
C103
(D102,R104,
C105,C106)
4
DRIVE & S/W BLOCK
OVER CURRENT LIMIT
BLOCK
(IC101, R109, C135, D103,
R103,C109, R125, R126)
3
2
HOT GND
4
!
!
C112
3
IC102
HOT CIRCUIT
!
!
T101
RECTIFIER
7
& SMOOTHING
(D109, C120,
8
L104,C121)
9 RECTIFIER
& SMOOTHING
(D110, C123)
RECTIFIER
10
& SMOOTHING
(D106, C116,
L103,C117)
11
RECTIFIER
12
& SMOOTHING
(D105, C115)
1
FEED-BACK
BLOCK
(R116,R117,R118
R119,R120,R121
2
!
C114)
IC103
3-21 3-22
Q155
TO Canal+
12VA
F. µ-com
Q161
R163 SEARCH "H"
24V S/W
Q159,R166,R167
TO CAPSTAN M
24/12VA
D155
TO DRUM
12VA
TO TU/IF
33V
TO SYS, TU/IF
5.4VA
36V S/W
5VT SW
TO AV, TU/IF,
BLOCK
BLOCK
5.2VT
(Q154, R157,
5V S/W
R158,R155) (Q152, R153,
BLOCK
TO Hi-Fi, Sensor
R154, D156)
SECAM
(Q151, R151,
5.2V
R152)
PWR CTL
FROM µ-COM
BLOCK
(Q162, R161)
TIMER "H"
Q163
FROM µ-COM
P.CTL"H"
'00 11. 30