– 20 –
– 21 –
– 22 –
DP-IF5000
5-5. SCHEMATIC DIAGRAM — TRANSMITTER SECTION — • Refer to page 27 for IC Block Diagrams.
B
TP05
TP06
TP03
TP04
D301-304
INFRARED
EMITTER
(L-CH)
D305-308
INFRARED
EMITTER
(R-CH)
1
A
B
C
D
E
F
G
H
I
2
3
4
5
6
5-6. PRINTED WIRING BOARD — LED SECTION —
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in
Ω
and
1
/
4
W or less unless otherwise
specified.
•
U
: B+ Line.
•
H
: adjustment for repair.
• Power voltage is dc 9 V and fed with regulated dc power
supply from external power voltage jack.
• Voltage is dc with respect to ground under no-signal
condition.
no mark : POWER ON
• Voltages are taken with a VOM (Input impedance 10 M
Ω
).
Voltage variations may be noted due to normal produc-
tion tolerances.
• Signal path.
F
: ANALOG
J
: RF
Note:
•
X
: parts extracted from the component side.
•
b
: Pattern from the side which enables seeing.
D201
A-4
D202
C-5
D203
C-5
D204
H-5
D205
F-5
D206
E-5
D207
F-5
D208
F-4
D209
F-3
D210
G-4
D211
G-3
D212
H-5
D213
H-3
D214
D-5
D216
D-5
D301
A-6
D302
C-6
D303
E-6
D304
G-6
D305
A-2
D306
C-2
D307
E-2
D308
G-2
IC205
B-3
IC206
E-3
Q301
F-5
Q302
G-2
Q351
G-5
Q352
H-2
• Semiconductor
Location
Ref. No.
Location
(Page
17)
(Page 23)
(Page 16)
(Page 16)
(Page 25)