LG KG110, Service Manual, Page: 60 / 87

4. Устранение неисправностей
59
Последовательность проверки
R271 0
(FOR TUNING NOISE)
RCV_N
R284 NA
R272 0
C277
0.1u
SPK_N
SHDM
3
SHDN
1
IN-
2
IN+
4
VC
C
9
OUT+
10
OUT-
6
BIAS
5
NC
8
GN
D
1
7
GN
D
2
11
U202
MAX9718
AMP_SHDN
R275 0
R276 0
VEXT
R280
10K
VBAT
C291 1u
AMP_SHDM
SPK_RCV_SEL
C280
1u
AUDIO
C271
1u
SPK_RCV_P
SPK_P
NO1
C4
NO2
A4
NC1
C1
NC2
A1
IN1
C2
IN2
A2
COM1
C3
COM2
A3
V+
B4
GN
D
B1
U201
MAX4684EBC_T
SPK_RCV_N
C290 1u
R283 NA
RCV_P
çÄóÄãé
ìÒÚ‡ÌÓ‚ËÚ ÚÂÒÚÓ‚Ó ӷÓÛ‰Ó‚‡ÌË ‚ ÂÊËÏ PRBS
ËÎË ÌÂÁ‡ÚÛı‡˛˘Ëı ÍÓη‡ÌËÈ, ÓÚÍβ˜ËÚ ˝ıÓ,
ÛÒÚ‡ÌÓ‚ËÚ Á‚ÛÍ Ì‡ χÍÒËÏÛÏ
Sine wave apprae at R114, R115?
èÂÂÔ‡flÚ¸ R280
ë˄̇Π̇ SPK_RCV_SEL ÌËÁÍËÈ?
èÂÂÔ‡flÚ¸ R114, R115
èÂÂÁ‡„ÛÁËÚ¸ èé
èÓ‰ÒÓ‰ËÌËÚ¸ Á‡ÌÓ‚Ó
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ÎË ÒÓ‰ËÌÂÌË ÏÂʉÛ
ÍÓÌÚ‡ÍÚÌ˚ÏË ÔÎÓ˘‡‰Í‡ÏË Ë
‰Ë̇ÏËÍÓÏ?
ÑË̇ÏËÍ ‰ÓÎÊÂÌ ‡·ÓÚ‡Ú¸ ÌÓχθÌÓ
çÂÚ
çÂÚ çÂÚ