Service manual

HCD-EH10
2323
HCD-EH10
7-9. SCHEMATIC DIAGRAM – MAIN Section (3/3) –
• See page 17 for Waveforms. • See page 26 for IC Block Diagrams.
R813
R846
R801
R817R849 R816
R863
C834
R839 R814
R830
R841
C801
R835
R834
R844 R845 R847
R820R819
R805
R808
R818
R815
X801
R850
R812R809
R807
R806
R851
R853
D851
L852
R836R833
CF802
D812
CF803
R842R829
R827
R857
C802C803
C807
C811
C812
C814
C815
C816
C820
C821
C823
C824
C826
C825
C835
C836
C838
C839
C851
C852 C853
C854
C855
C856
C869C868R862
R865
C861
C862
C864
C865
C867
R874
R873
R872
R871
R870
R868
R867
R864
R861
R859R837
R826
JR861
IC861
X861
Q862
R876
R875
R856
C866
C863
R869
R866
Q861
Q802
Q801
C840
C809 C819 R802
C817
L804
L805
C806
D815
R811
C822
C827C828
JW805
R838 R860JW402
JW403
L806
JW821
L851
BPF801
C818
IC801
L803
C810
JR802
C873
R823
R821
R831
Q803
JR803
R825
R824
R828
R840
CF801
R810
C813
R804
C804
R803
JR801
CNP802
C841
R848
R822
C829 C830 C848 C847
JW148C800
C833
C831
C832
D803
D802
D813
10k
2.2k
2.2k
10k22k 10k
22k
220
10V
100 100
47k
100
100 16V
4.7k
22k
10 22 22
10k47k
100k
10k
47k
4.7k
75KHz
2.2k
4701k
100k
0
22k
100k
SVC347A
10k10k
1PS226 47k100k
100
22k
0.10.01
2200p
0.1
0.1
0.1
100p
0.22
1000p
0.047
18p
18p
100p
1
0.22
0.22
0.1
0.1
0.047
10p 0.022
10p
470p
5p
47p68p470
10k
0.1
0.1
470p
22
50V
470p
100k
2.2k
220
220k
470k
10k
10k
10k
10k
1k1k
100
0
PT2579SN
4.332MHz
2SC3052F
47k
100k
22k
470p
22
50V
10k
10k
2SC3052F
2SC3052F
2SC3052F
0.47
0.1 1000p 10
0.1
1000p
1PS226
4.7k
470p
100p100p
1k 1k
0
LV23003VA
0.22
0
2p
100
220
220
2SC5477
0
470
2.2k
22
22k
1M
220
10V
0
0.1
10
3P
22
50V
1k
2.2k
0.01 0.01 2200p 2200p
0.1
0.47
0.47
0.47
SVC230
SVC230
1PS226
RDS-CLK
RDS-DO
TU-ANSD
TU-DO
TU-CLK
TU-DI
TU-CE
VM9V
TU-L
TU-GND
TU-R
EMC-GND
REG
FM
-M
IX
GND1
AM
-M
IX
VCC1
AM
IF-IN
FM
IF-IN
P-DET
P-COM
P
FM
-DET
L-OUT
R-OUT
VSS
CE
D
I
CL
DO
GND2
FM
RF-OUT
VCC2
FM
-OSC
AM
-OSC
BO2
BO1
LP-OUT
LP-IN
PD
AGC
AM
DET-OUT
FM
DET-OUT
M
PX-IN
VDD
XOUT
XIN
FM
RF-IN
AM
RF-IN
RDS DECODER
+4V REGULATOR
DET AMP
+5V REGULATOR
+3.1V REGULATOR
(GND)
(TUNER OUT L-ch)
(TUNER OUT R-ch)
(GND)
FM DET
(VT)
AM-LO
AM-RF
(3/3)
FM-LO
FM-RF
FM/AM
ANTENNA
FM/AM TUNER,
FM/AM PLL
AM-IFT
FM MIX AMP
(Page
22)
(Page
21)
Ver. 1.4
Refer to SUPPLEMENT-1 for the MAIN section of printed
wiring boards and schematic diagrams of US, Canadian,
Singapore, Taiwan, Korean and Australian models.
When repairing the set of AEP, UK, East European and Russian,
refer to either of original service manual/SUPPLEMENT-1
according to the set.