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HCD-VZ50MD
55
55
– MAIN SECTION –
TUNER UNIT
: FM
: CD
• Signal Path
• R-ch is omitted due to same as L-ch.
IN E2
LOUT
L IN
66
IC101
SOUND PROCESSOR
Q101
Q130
IC202
CINEMA
SPACE
60
REC B2
MUTE
72
SW OUT
37
BUF OUT2
40
BB A2
64
MIC IN
39
BB B2
ST-L
ST-R
ST-CLK
ST-D OUT
ST-D IN
ST-CE
TUNED
STEREO
ST MUTE
R-CH
: PB (DECK A)
: PB (DECK B)
: REC (DECK B)
: MD(PLAY)
: MD(REC)
: MIC
J101
L
VIDEO
(AUDIO)
IN
+
–
18
IC801
POWER AMP
17
10
12
11
RWLAY-H
26
IC401 (1/2)
MASTER CONTROL
25
STK-MUTE
35
HEAD PHONE
LINE MUTE
36
AC CUT
RESET
12
IN D2
67
IN B2
69
68
IN A2
MIC
SPEANA
RESET
BPL IN2
70
KEY IN2
CONT2
CONT3
L OUT
L IN
62
10
63
CLK
DATA
LATCH
32 33 34
Q102
MUTE
SWITCH
WOOFER
OUT
J102
FRONT
SPEAKER
J
E
7
2
3
61
REC A2
30
L+R OUT
OVERLOAD
DET.
Q801
Q841,842
MUTE
CONTROL
Q961
MUTE
SWITCH
Q962,963
THERMAL
DET.
Q881,883
RY881
RELAY
DRIVER
R-CH
TM801
LATCH
DRIVER
Q893
MUTE
Q821
Q822
PROTECT
DC AMP
Q891,892
MUTE
SWITCH
FAN
DRIVER
Q185
Q941,942
PROTECT
SWITCH
Q897
PROTECT
SWITCH
Q894-896
DELAY
Q181,182
RESET
SWITCH
Q501
Q183
D181
Q184
502-LAT
502-DATA
502-CLK
PL-DATA/SUR2
PL-CLK/SUR1
43
44
45
42
41
ST-CLK
ST-D IN
ST-D OUT
ST-CE
TUNED
STEREO
ST MUTE
46
47
48
49
50
51
52
60
53
PB-A/B
L
R
R-CH
D831
M941
(FAN)
J1691
24
PROTECT
27
MC
22
CD-POWER
94
POWER
23 STBY-RELAY
37
PHONES
DOLBY
TYPE B
BIAS
OSC
Q621,622
IC611
R-CH
HP101
PB HEAD
L
R
RV311
IC601
R-CH
L
R
3
1
IC602
4
REC/PB
EQ OUT(L)
T621
REC BIAS
ERASE HEAD
ERASE BIAS
46
48
B IN(L)
A IN(L)
16
PB-A/B
EQ IN(L)
38
36
RV301
REC LEVEL
39
REC OUT(L)
BIAS SW
70
120
TC MUTE
AMS IN
59
56 NR-ON/OFF
55 R/PB/PASS
58
57
61
BIAS
REC MUTE
ALC
63 TC-RELAY
54
EQ-H/N
+12V
Q623
R LIN(L)
43
PB
24
18
20
22
40
25
PB OUT(L)
LM ON/
OFF
BIAS ON/OFF
RM ON/OFF
ALC ON/OFF 15
NORM/
HIGH
PAS
DOL
P
R
REC/PB HEAD
X
IC301
DOLBY NR
DOLBY NR
HRPE101
RV341
REC
BIAS
DECK A
PLAYBACK
LEVEL
RV301
DECK B
PLAYBACK
LEVEL
33
32
23
NR ON/
OFF
17
S1004
A CrO2
S1008
B CrO2
19
A 120/70 B NORM/CROM/
METAL
28 27
26
MS
4
+VH
D991-994
VFDP
REG.
Q981
–5V
B–
SWITCH
Q903,904
MD H+5V
POWER
SWITCH
Q902
Q905,906
+5V
VF
B+
SWITCH
Q901,902
–5V
REG.
IC902
D995-998
–VH
D911
3
2
+5V
REG.
IC908
3
2
VREF
B+
SWITCH
Q910,911
+5V
REG.
IC901
3
1
JW914
+VL
–VL
D951
POWER
SWITCH
D +5V
(BD)
D +5V
D504-505
D915
D916
D917
Q912
+10V
+5.7V
REG.
IC903
3
1
+5V
REG.
IC904
3
1
+10V
REG.
IC909
3
1
MD 3.3V
MD A3.3V
MD BACKUP
IC910
3.3V
REG.
VF
JW915
F916
F917
T901
POWER
TRANSFORMER
BIAS +12V
+12V
REG.
IC905
3
1
LED +7V
M +7V
+7V
REG.
IC906
3
1
16
I
G
AC IN
F913
2A
F912
2.5A
F911
4A
VREF
OR
OR
SW MUTE
TA MUTE
R-CH
XRST
XRST
100
FEEDBACK
3
1
VOLTAGE
SELECTOR
230-240V
220V
120V
S911
3
1
IC501
RESET
MD
SECTION
(Page 53)
PANEL
SECTION
(Page 54)
CD
SECTION
(Page 51)
H
P.DOWN
MD
SECTION
(Page 53)
IN C2
MUTE
SW
D914
D507
D912
(PANEL) D+5V
D981
MD/P-DOWN
D985-986
D511
D513
(DECK A)
(DECK B)
VIDEO
SECTION
(Page 52)
CD-L
Summary of Contents for HCD-VZ50MD
Page 8: ...8 BD CD board BD CD BOARD To repair the BD CD board remove the bottom plate Bottom view ...
Page 57: ...HCD VZ50MD 57 57 7 4 SCHEMATIC DIAGRAM DECK SECTION E Page 64 TO MAIN BOARD 16 ...
Page 64: ...HCD VZ50MD 64 64 7 11 SCHEMATIC DIAGRAM MAIN 1 4 SECTION ...
Page 65: ...HCD VZ50MD 65 65 7 12 SCHEMATIC DIAGRAM MAIN 2 4 SECTION See page 89 for IC Block Diagrams ...
Page 67: ...HCD VZ50MD 67 67 7 14 SCHEMATIC DIAGRAM MAIN 4 4 SECTION See page 89 for IC Block Diagrams ...
Page 71: ...HCD VZ50MD 71 71 7 18 SCHEMATIC DIAGRAM DIGITAL 2 2 SECTION See page 92 for IC Block Diagrams ...
Page 73: ...HCD VZ50MD 73 73 7 20 SCHEMATIC DIAGRAM AMP SECTION ...
Page 77: ...HCD VZ50MD 77 77 7 24 SCHEMATIC DIAGRAM SWITCH SECTION ...
Page 83: ...HCD VZ50MD 83 83 7 32 SCHEMATIC DIAGRAM POWER SUPPLY SECTION ...