Mitsubishi Electric HS-U449 Service Manual page 74

TP2A PLAY
0.5V(p-p)(H)
TP2H
IC2A0 &1 PLAY
C2E0
TP2A
R2B1
0.5V(p-p)(H)
DFF
C2H6
VENV
L2A8
HSEL C2F9
R2A9
C2E2
C2D9
IC2A0
C2E1
L2A3
C2G2 C2G1
C2A8 C2A0
R2C5
C2A2
C2A3
C2A4
R2C6
A-R
C2B2
C2A6
A-C
C2A7
A-L
C310
JP300
C317 C300
JP2B5
Q355
R301
C301
R351
Q356 R302
C303
C312
C313
R352
R303
L350
Q351
R304
C311
R365 R366
C302
R305
C357
C358 R367
C379
T350
Q352
C350
R368
R357
Q354
C359 R358
Q353
MA
MF
CONTENTS
PCB-INTERCONNECT ···················· C-1
(POWER) PCB-MAIN ························ C-2
(HIFI) PCB-MAIN ······························ C-3
(TIMER/OPEKEY) PCB-MAIN ·········· C-4
PCB-OPE ·········································· C-4
(Y/C/A) PCB-MAIN ···························· C-5
(CONT) PCB-MAIN ··························· C-6
C-5
HS-U449
IC2A0 %5 PLAY IC2A0 %2 PLAY
0.7V(p-p)(H)
TP2B
Q2A0
JP2A6
R2A6
R2B0
C2B9
X2A0 C2E7
R2A7
C2G6
C2D1
C2D7 R2C4
C2G7
C2F8
L2A1
JP2H0 JP2H1
C2D4
C2D3
R2A8
C2D6 C2D0
C2D2
C2D8
L2A0
C305 R2A0 C2F1 C2F2
C315 C316
C314 C2C5
C2C1 C2F3
R2A2
C2C6 C2C7
C2F4
R2A1
C2C2 R2A4
C2C0
C2G3
C2E5 C2G4
R308
JP2A4
R2D0
Q2A7
R2D3
C2C3 R2D1
R2A3
IC2A0 #0 REC
Q2A2
R2B7
IC2A0 !3 REC
C2E9
C2C4
R2B9
1V(p-p)(H)
1.2V(p-p)(H)
IC2A0 !8 PLAY IC2A0 !8 REC
0.6V(p-p)(H) 0.6V(p-p)(H)
2.3V(p-p)(H)
JP2A3
L01
C03
C307
L301
R2V7
R2V6
Q2V1
JP06
JP07
TP2S
L03
C09
L04
C12
R10
C2C9
C2E6
JP05
C2G5
JP04
JP2A7
JP02
L2V6
C2H4
L2A5
R2E2 TP2J
C2G0
C2C8 R2E1
Q2C0
C2F6
TP2J PLAY
Q2C2
C2F5
TP2G
2V(p-p)(H)
REMOTE HAND UNIT
TU01
R03
TPCLK
D1
BATT
EL-1L7
1.5VX2 + /SID303C
R1
JP03
–
TPDAT 1.8
R2
C1
220
6.3V
C10
100µ
Q1
2SD596
/2SC3440
C2
0.47µ
X1
4MHz
TP11
KEY NO. FUNCTION
K01
VCR POWER
K02 EJECT
K03 CH
TP12
K04
CH
K05 VOL
K06 VOL
K07
TV POWER
J2A1
K08
R2F4
K09 1
K10 4
R2E3 K11 5
K12 2
K13 6
K14 3
K15 MUTE
K16
K17 7
K18 QUICK PROGRAM
K19 PLAY
K20 8
K21
10
K22
9
K23 INPUT X2
K24
K01 K02 K03 K04 K05 K06 K07
K09 K10 K11 K12 K13 K14 K15
IC1
M34570M4-095FP
K17 K18 K19 K20 K21 K22 K23
D1 36
1 D2
2 D3 D0 35
K25 K26 K27 K28 K29 K30 K31
3 D4 P13 34
4 D5 P12 33
K33 K34 K35 K36 K37 K38
K39
5 D6 P11 32
6 D7 P10 31
K41 K42 K43 K44 K45 K46
K47
7 D8
P03 30
8 D9/TOUT P02 29
9 P20
P01 28
10 P21/INT P00 27
SW
11 RESET P43 26
JS3 OFF:VTR ON:TV
12 CNVSS P42 25
JS2
P41 24
13 XOUT
JS1
14 XIN P40 23
15 VSS P33 22
P32 21
16 VDCE
17 VDD P31 20
18 CARR P30 19
C3
0.1µ
KEY No.
No.
KEY NO. FUNCTION
K25 REC
K26 REW
K27 PAUSE
K28 STOP
K29 DISPLAY
K30 FF
K31 X2
K32
K33 AUDIO/VIDEO
K34 CANCEL
K35 INDEX –
K36 ADJ +
K37 INDEX +
K38
ENTER
K39 MENU
K40
K41 VCR/TV
K42
K43
K44 ADJ –
K45
K46
K47 SP/EP
K48