Sony HCD-VZ50MD Service Manual page 55

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