Sony Tc Kb820s Manual

							Ð 30 Ð Ð 29 Ð
TC-KB820S
5-9. SCHEMATIC  DIAGRAM  Ð DOLBY-S Section Ð
¥
 See page 28 for IC Block Diagrams.
5-8. PRINTED  WIRING  BOARD  Ð DOLBY-S Section Ð
¥
 See page 13 for Circuit Boards Location.
(Page 21)
(Page 20) 
						

							Ð 31 ÐÐ 32 Ð
TC-KB820S
5-10. PRINTED  WIRING  BOARDS  Ð PANEL Section Ð  ¥ See page 13 for Circuit Boards Location.
(Page 19)
(Page 19)
(Page 32)
(Page 32)
(Page 19) (Page 20) 
						

							TC-KB820S
Ð 34 Ð Ð 33 Ð
5-11. SCHEMATIC  DIAGRAM  Ð PANEL Section Ð
The components identified by mark ! or dotted
line with mark ! are critical for safety.
Replace only with part number specified. (Page 21) (Page 26)
(Page 26) (Page 26) 
						

							5-12. IC  PIN  FUNCTION  DESCRIPTION
¥ MAIN  BOARD  IC801  CXP82612-022Q (SYSTEM CONTROLLER)
Ð 35 ÐÐ 36 Ð
Pin No. Pin Name I/O Function
1 STOP SW I Mechanism stop detect switch (S81) input terminal
2 SIRCS IN I Sircs signal input from the remote control receiver (IC901)
3 VERSION2 I Setting terminal for the version (fixed at “L”)
4 to 6 NC O Not used (open)
7 MPX ON/OFF O Multiplex filter on/off control signal output terminal    “H”: multiplex filter on
8 CAL ON/OFF O Calibration on/off control signal output terminal    “H”: calibration on
9 REC CAL 0 O
10 REC CAL 1 O
11 GP CAL 0 O
12 GP CAL 1 O
13 LINE MUTE O Line muting on/off control signal output terminal    “L”: line muting on
14 AMS IN I Auto music sensor signal input terminal    “H”: AMS detect
15 NC O Not used (open)
16 REC MUTE O Record muting on/off control signal output to the CXA1579P (IC502)    “H”: record muting on
17 REEL – O
18 REEL + O
19 BIAS O Recording bias on/off control signal output terminal    “H”: bias on
20 RELAY ORelay drive signal output for the record/playback selection relay                                                       
“L”: playback mode, “H”: recording mode
21 CAL KEY I AUTO CAL switch (S921) input terminal
22 METER L I Signal input for the level meter drive (L-ch)
23 KEY X I
Key input terminal (A/D input) (S901 to S904)    p, AMS 0, AMS ), r REC keys input
24 KEY Y IKey input terminal (A/D input) (S905 to S909)                                                                                   
R REC MUTING, á, P PAUSE, MEMORY, RESET keys input
25 METER R I Signal input for the level meter drive (R-ch)
26 DOLBY AD I DOLBY NR switch (S922) input terminal (A/D input)
27 HALF I Half detect switch (S86) input terminal
28
METAL CHROMI Metal detect switch (S83) and CrO2 detect switch (S82) input terminal    “H”: metal or CrO2
29 S.REEL I Supply reel rotation pulse input from the rotation detect sensor (IC81)
30 RESET ISystem reset signal input from the reset signal generator (IC802)    “L”: reset                                   
“L” is input for several 100 msec after power on, then it changes to “H”
31 XO O System clock output terminal (6 MHz)
32 XI I System clock input terminal (6 MHz)
33 VSS — Ground terminal
34 BIAS CAL 0 O
35 BIAS CAL 1 O
36 BIAS CAL 2 O
37 BIAS CAL 3 O
38 CAP.M ON/OFF O Capstan motor (M902) on/off control signal output terminal    “H”: motor on
39 OSC H/L O Calibration tone frequency high/low control signal output terminal    “L”: frequency high
40 OSC ON/OFF O Calibration tone on/off control signal output terminal    “H”: off, “L”: on
41 BC/S ODolby B and C type or dolby S type selection signal output to the CXA1563S (IC501)                    
“H”: dolby B and C type, “L”: dolby S type
42 DOLCON ODolby B type or dolby C type selection signal output to the CXA1563S (IC501)                              
“H”: dolby C type, “L”: dolby off (high impedance: dolby B type)
Recording calibration up/down control signal output to the CXA1579P (IC502)
“H”: up, “L”: down (high impedance: off)
Equalizer calibration up/down control signal output to the CXA1579P (IC502)
“H”: up, “L”: down (high impedance: off)
Reel motor (M901) drive signal output terminal
Equalizer bias calibration control signal output terminal
Pin No. Pin Name I/O Function
43 REC/PB ORecording/playback control signal output to the CXA1563S (IC501)                                                
“L”: recording mode, “H”: playback mode
44, 45 NC O Not used (open)
46 to 61 S1 to S16 O Segment drive signal output to the fluorescent indicator tube (FL901)
62 S18 O Segment drive signal output to the fluorescent indicator tube (FL901)
63 to 65 NC O Not used (open)
66 to 70 G5 to G1 O Grid drive signal output to the fluorescent indicator tube (FL901)
71 V-DISP — Power supply terminal for the fluorescent indicator tube drive (–20V)
72 VDD — Power supply terminal (+5V)
73, 74 NC O Not used (open)
75 VDD — Power supply terminal (+5V)
76 POWER IN I AC in detect signal input terminal    “H”: AC in
77 POWER OUT O Power on/off control signal output terminal    “L”: power on    Not used (open)
78 VDD — Power supply terminal (+5V)
79 TEST MODE I Setting terminal for the test mode    “L”: test mode (Normally: fixed at “H”)
80 VERSION1 I Setting terminal for the version (fixed at “L”) 
						

							Ð 37 Ð
SECTION  6
EXPLODED  VIEWS
The components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified. ¥ Items marked Ò*Ó are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
¥ The mechanical parts with no reference num-
ber in the exploded views are not supplied.
¥ Hardware (# mark) list and accessories and
packing materials are given in the last of the
electrical parts list. NOTE:
¥ -XX and -X mean standardized parts, so they
may have some difference from the original
one.
¥ Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
­­
Parts Color Cabinets Color
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
(1)  CASE, CHASSIS  SECTION
rA: TRANSFORMER board
2 3
224
5
(including rA– rE) #1
#1
T901
rA
#1 #1 #1
not
supplied
#2 #2 FRONT PANEL
SECTION11
11 6
2
1
9 1
not
supplied
not
supplied
not
supplied
not
supplied
UK
AEP
Australian
7
7
7
A A
11
10
1 X-4949-523-1 FOOT ASSY (F50180S)
2 3-710-901-11 SCREW, TAPPING
*3 3-021-377-01 CASE
*4 A-2007-481-A DOLBY-S BOARD, COMPLETE
*5 A-2007-779-A MAIN BOARD, COMPLETE
6 4-966-267-11 BUSHING (FBS001), CORD
!7 1-575-651-21 CORD, POWER (AEP)
!7 1-696-586-11 CORD, POWER (UK)!7 1-696-845-11 CORD, POWER (Australian)
*8 3-020-983-01 PANEL, BACK (AEP)
*8 3-020-983-11 PANEL, BACK (UK)
*8 3-020-983-22 PANEL, BACK (Australian)
9 3-703-249-21 SCREW, S TIGHT, +PTTWH (M3X8)
10 4-956-370-12 BAND, PLUG FIXED (UK, Australian)
11 3-704-515-21 SCREW (BV/RING)
!T901 1-427-751-11 TRANSFORMER, POWER 
						

							Ð 38 Ð
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
51 3-020-978-01 KNOB (REC)
52 3-020-979-01 KNOB (BALANCE)
53 X-3374-953-1 LID ASSY, CASSETTE
54 4-942-568-41 EMBLEM (NO.5), SONY
55 3-020-971-01 PANEL, FRONT (AEP,UK)
55 3-020-971-21 PANEL, FRONT (Australian)
56 3-020-980-01 WINDOW (METER)
57 4-922-921-62 BUTTON (POWER)
58 4-951-620-01 SCREW (2.6X8), +BVTP59 1-696-456-11 WIRE (FLAT TYPE) (31 CORE)
60 1-590-486-11 WIRE (FLAT TYPE) (7 CORE)
61 3-020-975-01 BUTTON (CONTROL)
62 3-020-977-01 BUTTON (AUTO CAL)
63 3-933-299-01 KNOB (DIA. 12)
64 X-3375-506-1 BASE (KB820S) ASSY, PANEL
65 3-937-169-01 SPRING, TENSION
66 3-020-976-01 BUTTON (EJECT)
67 3-354-981-11 SPRING (SUS), RING
(2)  FRONT  PANEL  SECTION
rB: AC POWER SW boardrC: HP boardrD: PANEL boardrE: REC VOL board
58
5860
61 57
#4
#3MD ASS’Y SECTION
rC
rD
rE
rB59
58
58
62
64
63
65
58
66
51
52 67
53
5455
56 
						

							Ð 39 Ð
101 X-3368-119-1 HOLDER (R) ASSY, CASSETTE
102 3-354-963-01 DAMPER
103 1-769-914-11 WIRE (FLAT TYPE) (9 CORE)
104 3-354-957-01 JOINT (LOCK LEVER)*105 3-354-954-01 LEVER (LOCK LEVER R)
106 3-354-962-01 SPRING (EJ SAFTY SPRING R)
107 3-354-956-01 LEVER (EJ SAFTY LEVER R)
108 3-354-960-01 SPRING (LOADING R), TORSION
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
(13)  MD  ASSÕY  SECTION
102
#5TCM-190VB12CSS
103
104
105
106
108
101
107 
						

							Ð 40 Ð
151 3-907-362-01 SPRING, TORSION
152 A-2004-673-A DECK (ONE) ASSY, HEAD (including HRP901)
153 3-343-484-01 SPRING, COMPRESSION
*154 3-359-445-11 HOLDER (1 WAY HEAD)
155 X-3374-992-1 SLIDER (LIMITER) ASSY
156 3-363-868-01 SPRING (HEAD CHASSIS), TENSION
157 X-3367-629-1 FLYWHEEL (FWD) ASSY
158 3-359-467-01 BELT (1 WAY FLAT BELT)
159 3-359-436-11 BASE (THRUST RETAINER), FITTING
160 3-359-414-01 SCREW (+PTPWH 2X23)
161 1-638-983-11 MOTOR FLEXIBLE BOARD
*162 A-2007-780-A AUDIO BOARD, COMPLETE
163 3-359-466-01 BELT (FR), SQUARE
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
*164 1-638-020-11 LEAF SW BOARD
165 3-359-430-01 SPRING (CASSETTE RETAINER), LEAF
166 3-575-321-00 RETAINER, THRUST, CAPSTAN
167 3-359-424-01 GEAR (REV GEAR)
168 X-3366-971-1 TABLE ASSY (B), REEL
169 3-362-308-01 CAP (REEL)
170 3-356-713-01 WASHER
171 X-3366-970-1 TABLE ASSY, REEL
172 X-3366-047-1 LEVER (PINCH F) ASSY
HE901 1-543-673-11 HEAD, MAGNETIC (ERASE)
M901 X-3363-501-2 MOTOR ASSY (REEL)
M902 X-3374-302-1 MOTOR ASSY (CAPSTAN)
158#7M902
M901 not
supplied
not
supplied
#8
#6 not
supplied
not
supplied
159
166
160
160161
160
162
163
HE901
not supplied
157
164
165
167
168
169
169
170171
153
151156
155
152
154
172
(4)  MECHANISM  DECK  SECTION-1
(TCM-190VB12CSS) 
						

							Ð 41 Ð
201 3-359-469-01 SPACER
202 X-3359-416-1 CHASSIS ASSY, MECHANICAL
*203 3-359-415-01 SLIDER (TRIGGER SLIDER)
204 3-359-454-01 SPRING, TORSION
205 3-359-429-01 SLIDER (BRAKE PLATE)
206 3-359-456-01 SPRING (TRIGGER SPRING), TORSION
207 X-3366-569-1 ARM ASSY, FR
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
208 3-359-419-11 GEAR (FR GEAR)
209 3-359-421-01 CLUTCH (REEL DISK)
210 3-359-418-01 PULLEY (FR PULLEY)
211 3-924-185-11 SPRING (FR ARM), TORSION
212 3-936-483-01 GEAR (CAM GEAR)
213 3-359-448-01 GEAR (TRIGGER)
(5)  MECHANISM  DECK  SECTION-2
(TCM-190VB12CSS)
201 202
203
204
205
206
207
208
209
210
211
212213 
						

							Ð 42 Ð
SECTION  7
ELECTRICAL  PARTS  LIST
NOTE:
¥ Due to standardization, replacements in the
parts list may be different from the parts speci-
fied in the diagrams or the components used
on the set.
¥ -XX and -X mean standardized parts, so they
may have some difference from the original
one.
¥ RESISTORS
All resistors are in ohms.
METAL: Metal-film resistor.
METAL OXIDE: Metal oxide-film resistor.
F: nonflammable¥ Items marked Ò*Ó are not stocked since they
are seldom required for routine service.
Some delay should be anticipated when order-
ing these items.
¥ SEMICONDUCTORS
In each case, u: µ, for example:
uA. . : µA. . uPA. . : µPA. .
uPB. . : µPB. . uPC. . : µPC. .
uPD. . : µPD. .
¥ CAPACITORS
uF: µF
¥ COILS
uH: µHThe components identified by
mark ! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
When indicating parts by reference
number, please include the board.
Ref. No.Part No.DescriptionRemarkRef. No.Part No.DescriptionRemark
AC POWER SW
AC POWER SW BOARD
*******************
(Included in MAIN BOARD, COMPLETE)
< CAPACITOR >
!C713 1-117-703-11 CERAMIC 0.0047uF 99% 250V
< SWITCH >
!S930 1-762-581-11 SWITCH, AC POWER PUSH (1 KEY) (I/O)
************************************************************
*A-2007-780-A AUDIO BOARD, COMPLETE
**********************
< CAPACITOR >
C11 1-163-133-00 CERAMIC CHIP 470PF 5% 50V
C12 1-136-157-00 FILM 0.022uF 5% 50V
C13 1-124-234-00 ELECT 22uF 20% 16V
C18 1-163-251-11 CERAMIC CHIP 100PF 5% 50V
C21 1-163-133-00 CERAMIC CHIP 470PF 5% 50V
C22 1-136-157-00 FILM 0.022uF 5% 50V
C23 1-124-234-00 ELECT 22uF 20% 16V
C28 1-163-251-11 CERAMIC CHIP 100PF 5% 50V
C31 1-124-234-00 ELECT 22uF 20% 16V
C32 1-124-234-00 ELECT 22uF 20% 16V
C33 1-124-234-00 ELECT 22uF 20% 16V
C51 1-164-182-11 CERAMIC CHIP 0.0033uF 10% 50V
C52 1-164-182-11 CERAMIC CHIP 0.0033uF 10% 50V
C53 1-163-020-00 CERAMIC CHIP 0.0082uF 10% 50V
C54 1-136-601-11 FILM 0.01uF 5% 630V
C56 1-164-505-11 CERAMIC CHIP 2.2uF 16V
C57 1-164-346-11 CERAMIC CHIP 1uF 16V
C71 1-164-346-11 CERAMIC CHIP 1uF 16V
C80 1-124-234-00 ELECT 22uF 20% 16V
C81 1-164-232-11 CERAMIC CHIP 0.01uF 50V
C82 1-136-157-00 FILM 0.022uF 5% 50V
C83 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V
C84 1-136-439-11 FILM 330PF 5% 630V
C85 1-136-433-11 FILM 100PF 5% 630V
C86 1-163-143-00 CERAMIC CHIP 0.0012uF 5% 50V
C87 1-136-273-00 FILM 75PF 5% 630V
C88 1-163-003-11 CERAMIC CHIP 330PF 10% 50VC89 1-124-234-00 ELECT 22uF 20% 16V
C90 1-107-584-11 CERAMIC 4PF 0.25PF 500V
C91 1-164-232-11 CERAMIC CHIP 0.01uF 50V
C92 1-136-157-00 FILM 0.022uF 5% 50V
C93 1-164-004-11 CERAMIC CHIP 0.1uF 10% 25V
C94 1-136-439-11 FILM 330PF 5% 630V
C95 1-136-433-11 FILM 100PF 5% 630V
C96 1-163-143-00 CERAMIC CHIP 0.0012uF 5% 50V
C97 1-136-273-00 FILM 75PF 5% 630V
C98 1-163-003-11 CERAMIC CHIP 330PF 10% 50V
C99 1-164-005-11 CERAMIC CHIP 0.47uF 25V
< CONNECTOR >
*CNP31 1-580-782-11 CONNECTOR, BOARD TO BOARD
*CNP32 1-580-781-11 PIN, CONNECTOR (PC BOARD) 7P
*CNP33 1-580-782-11 CONNECTOR, BOARD TO BOARD
*CNP71 1-564-719-11 PIN, CONNECTOR (SMALL TYPE) 3P
CNP72 1-764-902-11 CONNECTOR, FFC/FPC 4P
< DIODE >
D31 8-719-404-46 DIODE   MA110
< IC >
IC31 8-759-711-85 IC   NJM4580E-D
IC81 8-759-106-56 IC   uPC1297CA
< COIL >
L81 1-410-780-11 INDUCTOR        27mH
L91 1-410-780-11 INDUCTOR        27mH
< TRANSISTOR >
Q51 8-729-822-05 TRANSISTOR   2SD1622-ST-TD
Q52 8-729-822-05 TRANSISTOR   2SD1622-ST-TD
Q53 8-729-822-05 TRANSISTOR   2SD1622-ST-TD
Q71 8-729-602-36 TRANSISTOR   2SA1602
< RESISTOR >
R11 1-216-086-00 RES, CHIP 36K 5% 1/10W
R12 1-216-025-00 RES, CHIP 100 5% 1/10W
R13 1-216-100-00 RES, CHIP 130K 5% 1/10W
R14 1-216-068-00 METAL CHIP 6.2K 5% 1/10W
R21 1-216-086-00 RES, CHIP 36K 5% 1/10W
AUDIO