DSP-R495/RX-V495/RX-V495RDS/HTR-5140/HTR-5140RDS
H
46
B
A
C
D
E
F
G
■
PRINTED CIRCUIT BOARD (Foil side)
47
P. C. B. OPERATION (4)
P. C. B. OPERATION (1)
P. C. B. OPERATION (2)
●
Semiconductor Location
Ref. No.
D800
D801
D802
D803
D805
D806
D807
D808
D809
D811
D812
D813
Q800
Q801
Q802
Q803
Q805
Q806
Q810
Q811
Location
C2
C2
C2
C2
C2
C3
C2
E3
C3
C3
C3
C3
E2
D5
E5
A/B/C/D/E
STANDBY/ON
1
2
3
4
5
6
7
8
MAN'L/
AUTO FM
MEMORY
EDIT
AUTO/
MAN'L MONO
RDS
MODE
MODE
PTY SEEK
EON
TIME/
LEVEL
SET
MENU
EFFECT
START
–
+
PROGRAM
TUNING
MODE
FM/AM
DOWN
TUNING
UP
INPUT MODE
TAPE/MD MON
/EXT.
DECODER
INPUT
VCR.V-AUX.TV/DBS.DVD/LD.CD.TUNER.PHONO
1
2
5
15
10
25
20
34
30
45
40 39
55
60
61
64
65
50
36
37
1
30
31
50 51
80
81
100
VO
VC
G
LC87F65C8A
J,U,C,R,T,A,L
models only
R,T,A,L
models only
U,C,R,T
models only
B, G models only
J, A, L models only
J, U, C
models
only
B, G
models only
5V
RESET
COM
B
A
MG
DATA
SEL
CLK
RDT
DEST/RDO
TCE
TMUTE
STM
MTS
CKIF
MG
VDN
PR
V2
SDT
CELC
VSEL1
–10dB
RCK
RCE
DO
/ST
METER
/SBR
TRQ
MG
RT
N
VUP
SCK
CETC
VSEL0
/VCR
FMT
#8
TO: INPUT (1)
MG
PR
Y
S12
SPR
Y
PRI
PR
O
VP
PR
V1
CR
Y
W803
W801
YE
W802
YE
#14
TO: MAIN (1)
TO:
POWER
TRANSFORMER
B, G
models only
8
1
NJM2068LD
8
1
NJM2068LD
+12A
–12
TIR
E
TIL
E
TOR
E
TOL
E
–10dB
TO:
INPUT (1)
#9
W805
BASS
TREBLE
BALANCE
#13
#13
Y
C
Y
VE
AXL
E
AXR
TO: INPUT (2)
VIODEO AUX
VIDEO
L
AUDIO
R
Point
3
(Pin 16 of IC800)
V : 2V/div
H : 50nsec/div
AC range
1 : 1 probe
2V
SAMPLE
50ns
0V
Point
4
CH1 : Pin 11 of IC800
CH2 : Emitter of Q806
V : 2V/div
H : 0.5sec/div
DC range
1 : 1probe
2V
2V
SAMPLE
0.5s
0V
CH1
(CH1)
(CH2)
CH2
0V
Disconnect the
power cord from
the AC outlet.
This waveform is not available by pushing the
power switch ON and OFF.
With the POWER
switch turned ON,
connect the
power cord to the
AC outlet.
1
2
3
4
5
6