Sony Cyber-shot DSC-F717 Service Manual page 32

DSC-F717
COVER
COVER
For Schematic Diagram
• Refer to page 4-55 for printed wiring board.
1 2
FR-194 BOARD (2/4)
A
AUDIO (AU BLOCK)
XX MARK:NO MOUNT
NO MARK:REC/PB MODE
SP_VOL
AU_POWER_SAVE
B
AU_HGL_SEL
3
(1/4)
C
AU_AINL
AU_AOUT
SIGNAL PATH
D
AUDIO
SIGNAL
REC
PB
E
XNF_ON
15
XNS_ON
XSELF_TIMER_LED
(3/4)
XPWR_LED
F
CN304 12P
D_2.9V 1
REG_GND 2
XNS_ON 3
XNF_ON 4
XPWR_LED 5
MIC/SPEAKER
UNIT MIC_GND 6
(TY-014)
MIC_SIG 7
(PAGE 4-40)
G XTALLY_LED 8
D_2.9V 9
SP_GND(GND_GUARD) 10
SP_- 11
SP_+ 12
C303
H
05
FR-194 (2/4)
4-2. SCHEMATIC DIAGRAMS 4-2. SCHEMATIC DIAGRAMS
3 4 5
R276
0
R277
XX
C256
0.022u
R255 3300
C259
R253
4.7u
4700
6.3V
C257
C255
6800p C260
0.022u 1u
R261
56k
R252 R256
5600 1500
R258
27k
C258
3300p
R312
120
C264
0.01u
R313
680
C304
XX XX
4-25
FR-194 BOARD SIDE A FR-194 BOARD SIDE A
6 7 8
Note:Resister is
C265
C287 R270
mounted to the
10u C273
0.1u 33k
location where
6.3V 0.1u
C292 is
printed. R265
C289
2200
0.1u
C261
0.47u
100
R273 C274
0.47u
3 3 0 3 2.2
24 23 22 21 20 19 18 17 16 15 14 13
SPAGC_
1.5
DET
C292
REC_OUT
0 1.5
BEEP
BIAS
(Note) 1.5
XBEEP_MUTE
LPF_OUT
1.5
BEEP_OUT
LPF_IN2
1.5
IC251
BEEP_MIX_IN
LPF_IN1
1.5
AGND
AUDIO AMP
AGC_OUT
MIX_OUT
R260
IC251
GND
47k
0 AN2905FHQ-EB
SPA_IN
AGC_DET
1.5
VREF_SP
WHPF_OUT
1.5
SP_OUT-
WHPF_BIAS
1.5
SP_GND
WHPF_
SP_OUT+
IN
LING_
IN
C262
0.015u
37 38 39 40 41 42 43 44 45 46 47 48
C263
4.4
1.5 3 2 0
0.015u
R257 R262
2200 12k
C270
Q252
1u
C266
DTC143THT2L
0.1u
AUDIO MUTE
C269
R251
10u
0
10V
R274
2200
C290
C272
L251 10u
10u
10V 6.3V
10uH
FR-194 BOARD SIDE B FR-194 BOARD SIDE B
9 10 11
R279
R278
47k
0
10uH
L252
C278
1u
C291
10u
6.3V
C279
1u
0.1 C280
R268 C284
4.7u
0.47u
6.3V 68k
2.4 R267 47k
R271 100k
0.1
2.4
R272
2.2
47k
2.2
C277
10u
6.3V
2.2
2.2 C281
0.01u
C253
XX
2.2
L253
C282
10uH
0.01u
C276
C283 Q251
10u
1u
10V FMMT617TA
5
B+ SWITCH
4.9
C285
0.01u
4.4
R269
D251
10
R275 XX
100k
3
0
3 Q253
DTA144EMT2L
3
AUDIO MUTE
0
4-26
12 13
D_2.9V
16
A_4.9V (4/4)
A_3.2V
8
XAU_SP_MUTE
XAU_LINE_MUTE
(1/4)
17
BEEP
BEEP_ON
(3/4)
C254
XX
SP_GND
CAM_P_5V
18
(4/4)
REG_GND
5
AU_OUT
(1/4)