Printed Wiring Board - Power Key Board; Schematic Diagram - Power Key Board; Printed Wiring Board - Headphone Board; Schematic Diagram - Headphone Board - Sony STR-DN840 Service Manual

STR-DN840
5-33. PRINTED WIRING BOARD – POWER KEY Board –
• See page 18 for Circuit Boards Location.
1 2 3
POWER KEY BOARD
A
S114
B
SPEAKERS
Q110 E
C
CL166
S113
TUNING MODE
D
S112
TUNING –
E
S111
TUNING +
F
1-887-712-
G
5-34. SCHEMATIC DIAGRAM – POWER KEY Board –
1 2 3
POWER KEY BOARD
A
R174 R179
2.2k 100k
R176
47
D110
B
SML78423C-TP15
Q110
LED (ON/STBY)
2PD601ART
LED DRIVER
R175
100
Q111
2PD601ART
LED DRIVER
R178
100k
C
R173
10k
LED_ON
STR-DN840
•
: Uses unleaded solder.
4 5 6 7
R178
E Q111
S115
&/1
CL162
R176
CL164
CL160
CL165 CL163 CL161
CN103
8 3 1
M
DISPLAY
BOARD
CN100
(Page 42)
21
(21)
4 5 6 7
S114
R177
SPEAKERS
22k
S113
TUNING
R170
MODE
10k
S112
TUNING – R172
4.7k
S111
TUNING + R171
2.2k
CN103
8P
S115 CL160
1 AD1
"/1 CL161
DISPLAY
3
POWER_BUTTON
CL162
4 DGND BOARD
CL163
5 NC L
CN100
CL164
6 +3.3V_STBY
CL165 (Page 43)
7 LED_ON
CL166
8 LED_STBY
5-35. PRINTED WIRING BOARD – HEADPHONE Board –
• See page 18 for Circuit Boards Location.
8 1 2
HEADPHONE BOARD
A
B
C
C162
CL185
D
E
MAIN BOARD
CN391
K
(Page 36)
F
G
5-36. SCHEMATIC DIAGRAM – HEADPHONE Board –
1 2
A
CN107
MAIN
5P
BOARD
HP_DETECT 1
HP_R 3
(2/4)
I
HP_GND 4
CN391
HP_L 5
(Page 39)
B
50 50
•
: Uses unleaded solder.
3 4 5
J101
PHONES
CL188
CL186
1 3 5
CN107 21
(21)
1-887-714-
3 4 5
HEADPHONE BOARD
CL185
CL186
J101
CL187
C160 C162
PHONES
1000p 1000p
CL188
C161
1000p
6 7 8