DSP-R496/RX-V496/RX-V496RDS/HTR-5240/HTR-5240RDS
H
B
A
C
D
E
F
G
1
2
3
4
5
6
P. C. B. OPERATION (3)
P. C. B. OPERATION (2)
P. C. B. OPERATION (1)
H
E-54/J-50
B
A
C
D
E
F
G
1
2
3
4
5
6
■
PRINTED CIRCUIT BOARD (Foil side)
E-55/J-51
2V
SAMPLE 50ns
0V
Point
3
(Pin 13 of IC501)
V : 2V/div
H : 50nsec/div
DC range
1 : 1 probe
5V
2V
SAMPLE 5s
0V
(CH2)
0V
(CH1)
CH1
CH2
Disconnect the
power cord from
the AC outlet.
With the POWER
switch turned ON,
connect the
power cord to the
AC outlet.
This waveform is not available by pushing the
power switch ON and OFF.
Point
4
CH1 : Emitter of Q504
CH2 : Collector of Q503
V : 5V or 2V/div
H : 5sec/div
DC range
1 : 1 probe
●
Semiconductor Location
Ref. No.
D501
D502
D503
D504
D505
D506
D507
D508
D509
D510
D511
D512
IC501
IC502
IC581
IC582
Q501
Q502
Q503
Q504
Q505
Q506
Location
E2
G2
G2
E2
F3
E2
E2
G2
G2
G3
G3
G2
E2
G2
D5
E5
D2
D2
G2
G3
F2
F2
PR
V2
CKB
VUP
D
VD-C/O
CECOD
SCK
CCK
ERRD
MG
CLKA
C
RXA
C
CEA
C2
ERRA
/ST
DO
RCE
RCK
F-RX
FCE
MG
CNVSS
F-TX
F-CK
+5BU
/RES
CELC
DTB
VDN
FMT
SDT
CLD
CDO
+5M
MG
TXA
C
CEA
C1
/ICA
C
METER
TCE
DEST/RDO
RDT
#6
#6
#6
TO: INPUT (1)
ER
Y
PR
V1
VP
PRD
PRI
SR
Y
SI2
PR
Y
MG
LIMDT
#10
W503
FL
FL
G
G
W501
W502
#28
TO: MAIN (1)
TO: INPUT (2)
FROM: OPERATION (7)
3
FLASH
µ
-COM
WRITE
CONNECTOR
4
TUNING
MODE
AUTO/MAN'L
MONO
INPUT SELECTOR
MEMORY
MAN'L/AUTO FM
FM/AM
PRESET
/TUNING
EDIT
INPUT
MODE
RDS MODE
/FREQ.
A/B/C/D/E
TAPE/MD MON
/EXT. DECODER
EFFECT
PRESET / TUNING
PROGRAM
STANDBY / ON
EON
MODE
START
PTY SEEK
B, G only
17 18
22
25
30
1
13
30
50
51
80
81
100
M30217MA-A202FP
31
35
43
46
50
55
61
60
64 65
G
VC
VO
COM
NJM78L05A
OUT
IN
40
1
2
COM
B
A
R,T,A,L
only
J,U,C,R,T only
J,U,C,R,T,
A,L
only
J,U,C only
B,G
only
J,A,L
only
+12
–12
TIR
E
TIL
E
TOR
E
TOL
TO:
INPUT (1)
#7
W581
BASS
TREBLE
BALANCE
1
8
NJM2068LD
1
8
NJM2068LD
#581
TO: INPUT (1)
VIDEO AUX
VIDEO
L
AUDIO
R
#8
AXR
E
AXL
VE
AXV
W621