Sony BVW-55 Maintenance Manual page 711

+5V-2
L123
10uH
RV106 Y.M.B RV108 Y.O.B
Y.M.B Y.O.B
RV105 Y.M.A RV107 Y.O.A
Y.M.A Y.O.A
+5V-24
+5V-21
IC106 (2/3)
L120 RV106 RV105 RV108 RV107
10uH 20k 20k 20k 20k TC74HC4052AFT(EL)
Y OMC
VCC
C165 TP109
0.1uF
VEE
-5V-22
43
C172 R233
LM1IN1 OMCOUT
0.022uF 470k
1 3 44
OUT0 COM LM1IN2
5 41
OUT1 LM2IN1
2 42
R232
OUT2 LM2IN2
0
4
NM
OUT3
48
REFV
IC106(1/3)
TC74HC4052AFT(EL)
IC505 (5/5)
CXA1370Q
C173 C174 C163 C178
0.022uF 0.022uF 0.022uF 0.022uF
C164
0.022uF
4P Y_MAIN_CONT
4P Y_SUB_CONT
BVW-55
I J
IC505_1-3 3P
RF SWITCH
Y_OMC_CONT
C175
0.1uF
Q139 Q142
2SA1610-T1Y33 2SA1610-T1Y33
Q138 Q141
Q135 2SC4178-F13F14-T1 Q140 2SC4178-F13F14-T1 Q143
2SC4177-T1L5L6 2SA1611T1-M5M6 2SA1611T1-M5M6
C184 R247 R250 R259 R265
33uF 10k 1k 10k 1k
6.3V
1
C188
0.1uF
C180 R241 L124 C187 C197
R251 R256 R266 R267
0.022uF 1k 12uH 0.1uF 0.1uF
3.9k 220 3.9k 220
R237 R238 C182 C183 R245 R248 R249 R260 R263
2.2k 470 5pF 5pF 1.2k 10k 1k 10k 1k
LPF
4P H-Y_PB
H:Y FAST SEARCH
H:-10 to +10
4P H-Y_FAST_SEARCH
4P
H-Y_EE
4P
H-Y_WHITE_MARKER
4P
H-Y_PEDESTAL_MARKER
4P H-METAL_OSC_ON
4P H-OXIDE_OSC_ON
CN100 (32/140) 32 Y_EE_RF_X
CN100 (30/140) 30 Y_EE_RF_G
CN101 (32/140) 32 Y_EE_RF_X
CN101 (30/140) 30 Y_EE_RF_G
R275
0
2P IC106_10
R276
0
NM
Y SUB Y MAIN
TP106
TP107
R220
400mV
22
CL107
R221
22
R218 R219
1k 1k +5V-22
Q133
2SC4178-F13F14-T1
C166 R224 R228
0.022uF 510 330
L121 R226 C168 C170
1.5uH 0 110pF 0.022uF
NM
IC101(2/5)
R230 RV111
CXA1479Q 4.7k 2k
C156 RV109
Q134
0.022uF 500
25 23
EQ2AIN SOB_OUT 2SC4178-F13F14-T1
C155 0.022uF 27 21
C167 R225 R229
EQ2BIN MAINOUT
0.022uF 510 330
26 18
EQ2MCNT DOEQ
24
C171
EQ2SCNT
0.022uF
R223 L122 R227 C169
330 1.5uH 0 130pF
NM
R231 RV112
4.7k 2k
C162
470pF
RV110
200
-5V-22
C160
470pF
RV112 OX Y RF
RV109;Y METAL DO EQ YM DOEQ
OXIDE Y RF LEVEL
RV110;Y OXIDE DO EQ YO DOEQ
K
DM-121 (1/9) DM-121 (1/9)
4P
Q450 Q453 Q456
2SC4178-F13F14-T1 2SC4178-F13F14-T1 2SC4178-F13F14-T1
Q451 Q454 Q457
2SA1610-T1Y34 2SA1610-T1Y34 2SA1610-T1Y34
R268 R453 R455 R457 R461 R463 R465
1k 10k 1k 11k 1k 11k 1k
R450 C450
22 0.1uF
C451
0.1uF
C400 R451 R452 R454 R456 R458 R459 R460 R462 R464 R466
220pF 300 10k 4.7k 3.9k 10k 4.7k 3.9k 10k 4.7k 3.9k
NM
Q452 Q455
C452
2SA1611T1-M5M6 2SA1611T1-M5M6 2SA1611T1-M5M6
0.1uF
4P H-METAL
4P
H-OXIDE
IC102 (3/3)
C185
TC74HC4053AFT(EL)
1uF
+5V-23
50V
IC108 (4/4) 5 4
0 COM
TL084CPW-E05
3
1
9
+9V-2 C186 R252
SEL
1uF 1k
R243 50V R254
4.7k 10k
4
3 C190
+ 0.001uF
1 6
R235 R244
560 1k -
- 2 7
R253
47k
5
11 C192 +
Q137
0.1uF
2SA1611T1-M5M6
C177 R236 IC108 (1/4)
0.022uF 1k
TL084CPW-E05
R255
22k
SRC SEL
-5V-22
TP108
H-VIDEO_EE
4P
RV111 ME Y RF
METAL RF LEVEL
IC101(4/5) +5V-23
IC102 (2/3) CXA1479Q
C191
TC74HC4053AFT(EL) 47uF
6.3V
14 9
C176
INA REF
0.022uF
2 15 16 11 2 VCC
R246 C193
0 COM INB DETOUT2 A
4.7k 8pF
1 15 12
1 EQSEL DETOUT1
10 17 10 1
L125 C195
SEL DCPL1 ENVIN B
560uH 22pF
C179 13 4 GND
47uF OFFSET1 ENVB
6.3V 8 5
R234
D0OUT ENVA
10k
6 7
THOUT THCONT
3 2 C194
AOROUT OFFSET2 0.022uF
IC112
TC7SH32FU-TE85R
+5V-23
Q136
2SC4177-T1L5L6
R239
15k
R240 C181 R242
33k 0.1uF 10k
Y DO DETECTOR
4-35 (b) 4-35 (b)
L M
Y DMRF
TP111
CL111 +5V
C201 L451
0.1uF 10uH
Y_RF_DM 3P
R467
1k
IC451(2/5) IC451(1/5) IC451(3/5) IC451(4/5)
NM
SN74HC00ANS-E05 SN74HC00ANS-E05 SN74HC00ANS-E05 SN74HC00ANS-E05
5 2 9 12
6 3 8 11
4 1 10 13
R469
2.2k
R479
2.2k
R470
R471 R473 R475 R477
2.2k
1M 1M 1M 1M
R480
2.2k
X451 X452 X453 X454
R468 R472 R474 R476 R478
6.272MHz 4.972MHz 7.700MHz 6.400MHz
220 10k 10k 10k 10k
C454 C455 C456 C457 C458 C459 C460 C461
22pF 33pF 22pF 33pF 22pF 33pF 22pF 33pF
Q458
ADV YSWP
TP112
CL112
R269
10k
GND
IC108 (3/4)
E104
D101 TL084CPW-E05
DA204UT106
3 12
2
1 14 +
13
-
C200
22pF
C196
1uF
IC108(2/4)
50V R258
10k TL084CPW-E05
10
R264 R270
10k + 100
8
9 -
RV113
20k
1 3
RV113;Y RF ENVELOPE GAIN
R257 Y ENVE
22k Y ENVE
TP113
2
CL113
R271
100
R291
22k
Q151
9P L-ANA_PB
2SC4213B-TE85L
IC109 (5/5)
TC74VHC00FT(EL)
+5V-23 +5V-23
IC109(3/5) IC110
TC74VHC00FT(EL) TC7S08FU(TE85R)
5
10
VCC 8 2 VCC 4
C199
9 A Y
0.1uF
GND
1
GND
B
E103
GND
3
+5V-23
IC111
YDO PLS
TC7S08FU(TE85R)
TP110
5
R272
CL110 1k
5 2 VCC 4
R261
A Y
1k
4 13
Y 11 4
12 6 1
5 B
R262 GND
22k
3
C198
330pF
3
IC109 (4/5) IC109(2/5)
TC74VHC00FT(EL) TC74VHC00FT(EL) +5V-23
R273
100k R274
0
N O
1
C462 C463
33uF 0.1uF
6.3V
VCC IC451 (5/5)
SN74HC00ANS-E05
GND
H:SEARCH LPF 2
METAL +MAX to +18
OXIDE +MAX to +13
R481
SEARCH SWITCH
220
TAPE SPEED LOW MID FLAT
+MAX to +18 H L L
METAL +17 to +6 L H L
-6 to -MAX L L H
+MAX to +13 H L L
OXIDE +12 to +6 L H L
-6 to -MAX L L H
SEARCH TUNE
TAPE SPEED 6MHz 14MHz
METAL/ +MAX to +6 H L
OXIDE -6 to -MAX L H
H:FAST SEARCH ON
-13 to -MAX
+MAX to +13
ADV_Y_SW_PLS 4P,8P,9P
H:+18 TIMES
+MAX to +18
3
ANA_RF_ENV_X 9 CN100 (9/140)
ANA_RF_ENV_X 9 CN101 (9/140)
ANA_RF_ENV_G 11 CN100 (11/140)
ANA_RF_ENV_G 11 CN101 (11/140)
Y_RF_ENV 4P
IC109 (1/5)
TC74VHC00FT(EL)
1
L-Y_DO 3P 3
2
L-Y_PCM_MUTING
3P
L-Y_DO_PLS 5P
4
L-Y_DO_PLS 12 CN100 (12/140)
L-Y_DO_PLS 12 CN101 (12/140)
TO SV 194
L-Y_DOP 4P
L-RF_Y_VBLK 20 CN100 (20/140)
L-RF_Y_VBLK 20 CN101 (20/140)
Y_DO_THRESHOLD 4P
5
RF DEMODULATOR, TBC
DM-121 (1/9)
BOARD NO. 1-673-526-12
LOT NO. 904-
BVW-55_DM-121_012
P