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HCD-GZR5D
HCD-GZR5D
59
59
7-28. SCHEMATIC DIAGRAM – MIC Section –
• See page 64 for IC Block Diagrams.
D
3
E
4
8
2
C
B
6
1
A
7
9
5
9
9
NJM4558M-TE2
IC261
50k
RV261
R270
4.7k
R271
3.9k
C296
0.1
C267
0.1
C274
0.01
C276
220
10V
R282
5.6k
R288
0
R281
100
C263
10 50V
R284
10k
0.1
C275
C277
470
6.3V
C262
0.1 50V
M65850FP-E1
IC262
22k
R890
22k
R892
22k
R893
10k
R891
22k
R896
22k
R895
22k
R894
470
R899
470
R900
1000p
C286
1000p
C295
0.068
C287
0.47
C288
0.47
C289
4700p
C285
0.1
C284
1
C279
0.068
C293
4700p
C294
1
C278
25V
47
C290
25V
47
C292
R278
100
0.047
C282
1
C283
C291
0.1
2SC3052F-T1-LF
Q269
2SC3052F-T1-LF
Q268
2SC3052F-T1-LF
Q267
ISA1235AC1TP-1EF
Q264
MC2838-T112-1
D261
0.1
C281
47k
R908
R907
47k
R911
47k
R902
2.2k
R901
4.7k
ISA1235AC1TP-1EF
Q266
ISA1235AC1TP-1EF
Q265
47k
R910
47k
R909
S
2SK2158-T2B
Q261
1
2
3
4
5
6
7
8
9
9P
W261
A_GND
MIC_OUT
MIC_SW
9V
ECHO_G1
ECHO_G2
S_GND
SCORE-SIG
NC
E
ET261
(CHASSIS)
J261
2SC3052F-T1-LF
Q263
BUFFER
2SC3052F-T1-LF
Q262
1
C269
100
R283
R267
100k
R261
4.7k
C261
0.01
C265
47p
C298
1000p
R262
10k
R263
1k
R264
220k
R268 33k
R274
100k
2.2k
R273
R280
47
0.01
C273
R272 47k
10k
R276
1SS133T-77
D263
R279
1.5k
Mount Mecha
153758461
LP261
68k
R897
33k
R898
10k
R904
R906
47k
R914
1.2k
R916
4.7k
22k
R903
R905
22k
R912
1k
R913
10k
R915
10k
C264
680p
C270
47p
MAZ8056GMLS0
D262
R277
330k
R265
2.2k
4.7k
R289
R269
2.2k
50V
1
C299
0.47
C268
0.47
C272
1
C280
C271
47p
MIC BOARD
IC261
MIC AMP
IC262
ECHO AMP
MIC LEVEL
1 2
3
MIC
Q264-269
ECHO AMP
Q261,262
MIC MUTE
Summary of Contents for CDM74HF-DVBU101
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Page 101: ...MEMO HCD GZR5D 101 ...