Table of Contents
Advertisement
XL-HP737E/HP737H
Audio
E
Market
XLHP737H/E
Service Manual
XL-HP737E/HP737H
CHAPTER 4.
DIAGRAMS
[1] BLOCK DIAGRAM
ANTENNA
TERMINAL
SO301
AM LOOP
ANTENNA
L341
BALUN
AM
TRACKING
ICT21
LC72723
RDS DECORDER
8
X OUT
X IN
9
10
7 4
13
RDS CIRCUIT:H ONLY
FROM CD SECTION
CNP2
SWITCHING
REC /P.B. HEAD
Q101-
L-CH
Q104
TAPE R-CH
AC BIAS
ERASE
HEAD
FM IF
1
CF301 Q301
FE301
8
FM FRONT END
5
2
6
7
3
FM IF DET./
FM MPX./AM IF
AM BAND
COVERAGE
VT
QT21
2
MPX IN
+B5
VDDA
3
+B
VDDD
11
FM
Q360
14
15
16
SWITCHING
CNS2
1
2
3
13
P.B
4
L(TA)
2
21
R(TA)
23
H/N
7
18
L REC
REC
9
R REC
16
11
12
15
SWITCHING
SWITCHING
Q105
Q114
Q106
+B5
Q112
Q113
SWITCHING
Figure 4-1 BLOCK DIAGRAM (1/4)
CF352
CF302
450kHz
T351
AM IF
1
2
4
5
IC303
LA1832S
23
20
21
24
7
10
18
LOW PASS
X352
4.5MHZ
20
12
1
22
16
15
11
3
4
OSC
FM/AM
MO/ST
7
9 10
21
FM
IC302
LC72131
PLL(TUNER)
JK690
L
9
L
VIDEO/AUX
R
R
16
L
10
TAPE
15
R
L
AUDIO PROCESSOR
11
TUNER
14
R
L
12
CD
R
13
7 18
+B5
L
PB
R
L
REC
R
IC101
AN7345K
PLAYBACK AND RECORD
/PLAYBACK AMP.
+B5
BIAS
BIAS
Q111
Q109
Q110
L103
OSC
SWITCHING
4 – 1
+B5
CF351
10.7MHz
ZD351
5.1V
X351
456kHz
9
8
17
13
L
L
14
R
15
R
16
12
L354
FILTER
5
6
17
ST FM
DI
1
CE
2
CLK
24
IC601
ñ20dB
LC75341
ATT
R
21
Q601
Q602
L
4
8
17
3
23
+B5
REC/PLAY
Q107
Q108
+B5
MUTING
+B4
+B7(A_+5V)
+B8(D_+5V)
+B9(SW_+5V)
+B_PROTECT
BIAS
Q603
Q604
A_+10V
LD_+8V
Q851
UNS
+B10
Advertisement
Table of Contents
