Block Diagram - JVC TD-W254BK Service Manual

L
2 4
VCA
LINE IN
VCA
15 5 13
7
R
VR601
Input Level
L
Q1101
DECK A VR111
A PB EQ ADJ
PB HEAD
(L)
R
Q2101
VR211
DB101
A PB EQ ADJ
(R)
HS
L
VR116
REC/PB SELECT
B PB EQ ADJ
(L)
DECK B
REC/PB HEAD
R
VR216
B PB EQ ADJ
(R)
IC845
7
L2401
8
B
HX PRO
ERASE HEAD
2
VR246
BIAS ADL
-7V
(R)
IC851
VOL.CONTROL
& DD RP
DECK A
PB HEAD AMP
4
2
IC811
IC818
8
PB SIGNAL
6
1
SELECT
3
7
A70
5.6
IC812
PB EQ SWITCH
Q8172
4
HS
VR212 VR112
B PB
(R) (L)
A PB LEVEL ADJ
REC
Q8163
IC816
DECK B
PB HEAD AMP
3 1 4
Q1152
4
2
IC815
8
7
Q2152
3
7 9
6
VR117
VR217
B PB LEVEL ADJ
B DECK LEVEL ADJ
(L)
(R)
11
L1401
BIAS DSC
12
Q8491
10 2
Q8492
17
VR146
BIAS ADJ
L8401
-7V
(L)
FREQUENCY ADJ
REC PB O
REC IN
IN UT
(R)
(L) (L)
1 30 22
IC835
DOLBY NR
28 3 16
REC
OUT
PB IN PB IN
(L)
(L) (R)
2 11 10
12.13
Q8171
3 8 9
A PB
B70
Q1251 Q2251
Q8251
REC AMP
REC MUTE
3
1
IC825
7
9
VR226
VR126
REC LEVEL ADJ
REC LEVEL ADJ
(R)
(L)
Q8481
+B
Q8482
-B
2-1
L
PB OUT
(R)
LINE OUT
9
R
15
REC
HEADPHONES
OUT
(R)
5
7
J8601
IC861 H.P.JACK
1
3
IC852
LEVEL METER AMP
5 7
3 1
IC701
Q705 1
2
47
3
Q706
4 ~
FL MUTE G0 G6
DI701
5
48
Q707
6
7
9
S1-S16
24
TD-W254BK
METER
(R)
METER
(L)