SLV-M10HF
RMT-V249
SERVICE MANUAL
G
j
• Refer to the SERVICE MANUAL of VHS MECHANICAL
ADJUSTMENT
(9-921-647-11)
for MECHANICAL ADJUSTMENTS.
SPECIFICATIONS
US Model
Canadian Model
S MECHANISM
MICROFILM
VIDEO CASSETTE RECORDER
[ NOTE ON REP AIRING HARNESSES BETWEEN AN-16/17
BOARDS AND NL-2 BOARD ]
AN-16 board NL-2 board
CN201 CN002
AN-17 board NL-2 board
CN101 CN001
Be sure to use the original one or equivalent (AWG, length).
If not so, the resonance frequency will be changed.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety checks before releasing the set to the customer.
1. Check the area of your repair for unsoldered or poorly-soldered
connections. Check the entire board surface for solder splashes
and bridges.
2. Check the interboard wiring to ensure that no wires are
"pinched" or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly
transistors, that were installed during a previous repair . Point
them out to the customer and recommend their replacement.
4. Look for parts which, though functioning, show obvious signs
of deterioration. Point them out to the customer and
recommend their replacement.
5. Check the line cord for cracks and abrasion.
Recommend the replacement of any such line cord to the
customer.
6. Check the B+ voltage to see it is at the values specified.
7. Check the antenna terminals, metal trim, "metallized" knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
T o Exposed Metal
Parts on Set
AC
0.15
µ
F
1.5 k
Ω
Voltmeter
(0.75 V)
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a
return to chassis, must not exceed 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
TW-540A. Follo w the manufacturers' instructions to use these
instruments.
2. A battery-operated A C milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operated AC v oltmeter. The "limit" indication
is 0.75V, so analog meters must have an accurate lo w v oltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples
of a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2V A C range are suitable. (See
Fig. A)
Earth Ground
Fig. A. Using an A C v oltmeter to check A C leakage.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK ! OR DOTTED LINE WITH
MARK ! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE ! SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS P AR SONY.
— 2 —
TABLE OF CONTENTS
SERVICE NOTE
1. ERROR CODE INDICATION··········································· 5
1. GENERAL
Getting Started
Unpacking··············································································1-1
Setting up the remote commander ·········································1-1
Hookups ·················································································1-2
Selecting a language ······························································1-8
Setting the clock ····································································1-8
Setting up cable box control ··················································1-9
Presetting channels ······························································1-11
Setting up VCR Plus+··························································1-12
Basic Operations
Playing a tape·······································································1-13
Recording TV programs ······················································1-13
Locating a channel by station ID ·········································1-14
Recording TV programs using VCR Plus+ ·························1-15
Setting the timer manually···················································1-16
Additional Operations
Playing/searching at various speeds ····································1-16
Searching for a selected point on the tape ···························1-17
Skip-searching automatically···············································1-18
Creating a favorite channel list with station IDs··················1-18
Recording TV programs using the quick timer ···················1-18
Checking/changing/cancelling timer settings ······················ 1-19
Recording stereo and bilingual programs ····························1-19
Searching using the index function······································1-20
Adjusting the picture ··························································· 1-20
Changing menu options ·······················································1-20
Editing with another VCR ···················································1-21
SmartFile function
About the SmartFile function ··············································1-21
Recording using the SmartFile function ······························ 1-22
Selecting and playing a program ·········································1-23
Checking the contents of a tape ··········································· 1-23
Labelling a recorded program and tape ·······························1-23
Protecting a recorded program·············································1-25
Erasing the data of an unwanted program ···························1-25
Storing program data from the DSS receiver
(Program Data Download)···················································1-25
Additional Information
General setup information ···················································1-26
Index to parts and controls···················································1-26
2. DISASSEMBLY
2-1. UPPER CASE,
FRONT PANEL BLOCK ASSEMBLY ··························2-1
2-2. FR-139, DM-81, AJ-2, AN-17 BOARDS ·······················2-1
2-3. NL-2 BOARD, REAR PANEL ·······································2-1
2-4. POWER BLOCK, MA-335 BOARD
(WITH S MECHANISM DECK) ···································2-2
2-5. AN-16 BOARD, S MECHANISM DECK ·····················2-2
2-6. INTERNAL VIEWS························································2-3
2-7. CIRCUIT BOARDS LOCATION ···································2-4
3. BLOCK DIAGRAMS
3-1. OVERALL BLOCK DIAGRAM ····································3-1
3-2. VIDEO BLOCK DIAGRAM ··········································3-3
3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM ·····3-5
3-4. AUDIO BLOCK DIAGRAM ·········································· 3-7
3-5. MODE CONTROL BLOCK DIAGRAM·······················3-9
3-6. TUNER BLOCK DIAGRAM ·······································3-11
3-7. POWER SUPPLY BLOCK DIAGRAM ·······················3-13
4. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS
4-1. FRAME SCHEMATIC DIAGRAM································4-1
4-2. PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS ············································ 4-3
• MA-335 (REC/PB AMP, VIDEO, SERVO/SYSTEM
CONTROL, AUDIO, TUNER)
PRINTED WIRING BOARD ·························4-3
• MA-335 (REC/PB AMP) SCHEMATIC DIAGRAM ··4-5
• MA-335 (VIDEO, NORMAL AUDIO)
SCHEMATIC DIAGRAM ······························4-8
• MA-335 (SERVO/SYSTEM CONTROL)
SCHEMATIC DIAGRAM ····························4-11
• MA-335 (ON SCREEN DISPLAY)
SCHEMATIC DIAGRAM ····························4-15
• MA-335 (DSF) SCHEMATIC DIAGRAM················4-17
• MA-335 (V-SET) SCHEMATIC DIAGRAM ············4-19
• MA-335 (AFM AUDIO)
SCHEMATIC DIAGRAM ····························4-21
• MA-335 (TUNER) SCHEMATIC DIAGRAM··········4-23
• MA-335 (POWER SUPPLY, AV-BUS)
SCHEMATIC DIAGRAM ····························4-25
• FR-139 (MODE CONTROL)
PRINTED WIRING BOARD ·······················4-27
• FR-139 (MODE CONTROL)
SCHEMATIC DIAGRAM ····························4-29
• DM-81 (OPERATION SWITCHES)
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ····························4-31
• AJ-2 (LINE-2 IN)
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ····························4-32
• AN-16 (INNER SMARTFILE SENSOR/WRITER),
AN-17 (FRONT SMARTFILE SENSOR)
PRINTED WIRING BOARDS AND
SCHEMATIC DIAGRAMS··························4-33
• NL-2 (SMARTFILE)
PRINTED WIRING BOARD ·······················4-35
• NL-2 (SMARTFILE)
SCHEMATIC DIAGRAM ····························4-37
• POWER BLOCK SR821 (SWITCHING REGULATOR)
PRINTED WIRING BOARD AND
SCHEMATIC DIAGRAM ····························4-39
5. INTERFACE, IC PIN FUNCTION
DESCRIPTION
5-1. SYSTEM CONTROL —
VIDEO BLOCK INTERFACE
(MA-335 BOARD IC161)···············································5-1
5-2. SYSTEM CONTROL —
SERVO PERIPHERAL CIRCUIT INTERFACE
(MA-335 BOARD IC161)···············································5-1
5-3. SYSTEM CONTROL —
MECHANISM INTERFACE
(MA-335 BOARD IC161)···············································5-2
5-4. SYSTEM CONTROL —
SYSTEM CONTROL PERIPHERAL
CIRCUIT INTERFACE (MA-335 BOARD IC161) ·······5-2
5-5. SYSTEM CONTROL —
AUDIO BLOCK INTERFACE
(MA-335 BOARD IC161)···············································5-2
5-6. SERVO/SYSTEM CONTROL MICROPROCESSOR
PIN FUNCTIONS (MA-335 BOARD IC161)················5-3
5-7. TUNER/TIMER MODE CONTROL PIN FUNCTIONS
(FR-139 BOARD IC460) ················································5-4
— 3 —
6. ADJUSTMENTS
6-1 MECHANICAL ADJUSTMENTS ·································6-1
6-2. ELECTRICAL ADJUSTMENTS ···································6-1
2-1. PREPARATION BEFORE ADJUSTMENT···················6-1
2-1-1.Equipment Required ························································6-1
2-1-2.Equipment Connection ····················································6-1
2-1-3.Input Signal Check ··························································6-1
2-1-4.Alignment Tape ·······························································6-1
2-1-5.Input/Output Levels and Impedance ·······························6-2
2-1-6.Adjustment Sequence ······················································6-2
2-2. POWER SUPPLY CHECK ·············································6-2
2-2-1.Output Voltage Check (MA-335 Board) ·························6-2
2-3. SERVO SYSTEM CHECK ·············································6-3
2-3-1.RF Switching Position/
AF Switching Position Adjustments (MA-335 Board) ···6-3
2-4. VIDEO SYSTEM CHECKS ··········································· 6-4
2-4-1.X’tal OSC Check (MA-335 Board)································· 6-4
2-4-2.SYNC AGC Check (MA-335 Board)······························6-4
2-4-3.Recording Y Level Check (MA-335 Board) ···················6-4
2-4-4.Recording Chroma Level Check (MA-335 Board) ·········6-5
2-4-5.Playback Level Check (MA-335 Board) ·························6-5
2-5. AUDIO SYSTEM ADJUSTMENT·································6-5
2-5-1.ACE Head Adjustment ····················································6-5
2-5-2.E-E Output Level Check ·················································6-5
2-5-3.Overall Output Level and Distortion Factor Check·········6-6
2-5-4.Overall Noise Level Check··············································6-6
2-6. TUNER SYSTEM ADJUSTMENT································ 6-6
2-6-1.Separation Adjustment (MA-335 Board) ························6-6
2-7. ADJUSTING PARTS LOCATION DIAGRAM ·············6-8
7. REPAIR PARTS LIST
7-1. EXPLODED VIEWS ······················································7-1
7-1-1.FRONT PANEL ASSEMBLY AND UPPER CASE
SECTION ········································································7-1
7-1-2.CHASSIS SECTION·······················································7-2
7-1-3.MECHANISM DECK-1 ·················································7-3
7-1-4.MECHANISM DECK-2 ·················································7-4
7-1-5.MECHANISM DECK-3 ·················································7-5
7-2. ELECTRICAL PARTS LIST ··········································7-6
— 4 —
SERVICE NOTE
1. ERROR CODE INDICATION
• Error codes are indicated using the lower 5 digits in the fluorescent display tube.
“At this time, Colon “:” between character is not indicated.”
Mode code indication when the error has occurred.
Error code
ERROR CODE
0 No error
1 Cam encoder error Loading direction
2 Cam encoder error Unloading direction
3 T reel error
4 S reel error
5 Capstan error
6 Drum error
7 Error on initializing
8 Cassette loading error
9 Reserve
SLV-M10HF
MODE CODE
0 Power-on eject 10 FWD x1 20 REW play
1 Power-on initial 11 FWD x2 21 Cas. loading
2 Power-off eject 12 CUE 22 Tape loading
3 Power-off stop 13 PB-pause 23 Power-off loading
4 FF 14 RVS-pause 24 Mecha. error (Power on)
5 REW 15 RVS x1 25 Power-on eject initial
6 REC 16 RVS x2 26 Power-off eject initial
7 REC- pause 17 REV 27 APC REC
8 Power-on stop 18 Power-off initial 28 Cas. loading
9 PB 19 Mecha. error (Power off) (No auto PB check)
— 5 —
SECTION 2
Front panel assembly
1
Screws (B2.6 × 8)
2
DM-81 board
2
FR-139 board
3
Flat cable
From CN140 on
FR-139 board
3
Frexible board
From CN441 on
DM-81 board
1
Screws (B2.6 × 8)
6
Screw (B2.6 × 8)
4
Screw (B2.6 × 8)
8
AJ-2 board
7
JK ground plate
9
AN-17 board
5
Antenna (large) shield plate <Note>
Note : When peeling off the antenna (large) shield plate,
be sure to apply it to the original position on the
AJ-2 board.
If not so, the resonance level of AN-17 board
becomes small.
DISASSEMBLY
NOTE: Follow the disassembly procedure in the numerical order given.
2-1. UPPER CASE, FRONT PANEL BLOCK ASSEMBLY
3
Connector
From CN423 on
MA-335 board
4
3
Flat cable
From CN162 on
MA-335 board
Hooks
1
Screws (case)
2
Upper case
SLV-M10HF
1
Screws (case
5
Front panel
block assembly
4
Hooks
2-2. FR-139, DM-81, AJ-2, AN-17 BOARDS
2-3. NL-2 BOARD, REAR PANEL
1
Screws
4
Hooks
4
Hooks
2
NL-2 board
4
Hooks
4
Hooks
5
Rear panel
4
Hooks
3
2-1
Release cable stopper
from rear panel
2-4. POWER BLOCK, MA-335 BOARD (WITH S MECHANISM DECK)
1
Remove two screws securing NL holder and remove
NL holder.
2
Connector
(From CN201 on power block)
5
Screws
MA-335 board
6
(with S mechanism deck)
a
a
2
3
Screws
4
Power block
2-5. AN-16 BOARD, S MECHANISM DECK
1
Flexible board
From CN260 on
MA-335 board
4
Screws
7
AN-16 board
6
AN holder
MD base (R)
5
2
Screws
MD base (M)
S mechanism deck
MA-335 board
MD base (R)
2-2
2-6. INTERNAL VIEWS
— T op View —
M901
Drum Assembly DZH-94A/Z-RP
8-839-044-02
ACE head block assembly
A-6759-620-A
FE head
1-500-144-11
— Bottom View —
Reel (S) table
3-977-507-01
Pinch press block assembl
A-6759-615-A
FL complete assembly
A-6759-619-C
Reel (T) table
3-977-508-01
M902
DC motor (capstan)
1-698-971-11
M903
Cam motor assembly
X-3947-577-1
M901
Drum Assembl
DZH-94A/Z-RP
8-839-044-02
Rubber belt
3-977-510-01
2-3
2-7. CIRCUIT BOARDS LOCATION
MA-335
REC/PB AMP, VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER
AJ-2
(LINE-2 IN)
AN-17
FRONT
SMARTFILE
SENSOR
FR-139
(MODE CONTROL)
NL-2
(SMARTFILE)
AN-16
INNER SMARTFILE
SENSOR/WRITER
POWER BLOCK SR821
DM-81
(OPERATION SWITCHES)
2-4E
3-1. OVERALL BLOCK DIAGRAM
SECTION 3
SLV-M10HF
BLOCK DIAGRAMS
CJ570
LINE 1
IN
CJ801
LINE 2
IN
NORMAL
AUDIO
CJ801
LINE 2
IN
CJ570
LINE 1
IN
CH 1
CH 2
CH 1
CH 2
CH 1
CH 2
REC/
ERASE
HEAD
HEAD
(SEE PAGE 4-32)
AJ-2
BOARD
VIDEO
VIDEO
VIDEO
HEAD
SP
SP
EP
EP
AUDIO
HEAD
L VIDEO 2
L VIDEO 1
IC260
VIDEO
REC/PB
QAMP
IC340
AFM
REC/PB
QAMP
L 1(L)
L
AUDIO
L 1(R)
R
MA-335 BOARD
PB Y/C
REC Y/C
C ROT
C SYNC
S OUT 1
S CLK 1
RF SWP
RF ENV
FM PB
FM REC
AF REC
AF SWP
REC P
IC201
(1/2)
Y/C
PROCESSOR
(SEE PAGE 4-32)
AJ-2
BOARD
L 2(L)
L
AUDIO
PB
L 2(R)
R
A HEAD PB
IC403
A HEAD REC
VIDEO
AMP
T331,Q330
BIAS
ERASE
OSC
(SEE PAGE 4-5,8,11,15,17,19,21,23,25)
VIDEO
IC501
HD
VD
AFC
H DET
MEDIA VIDEO
TU VIDEO
Q VD
I2C DATA VIDEO
I2C CLOCK VIDEO
IC202
1H
DELAY
S VHS
(HIFI)
NORM OUT
(2/2)
A L
A R
RF AUDIO
TU L
TU R
I2C DATA 1
I2C CLOCK 1
AF ENV
AF SWP
IC360
AUDIO
PROCESSOR
NORM IN
IC201
AUDIO
PROCESSOR
(MONO)
IC500
OSD
IC871
SYNC
DET/SET
V SET CS
SO 0
SCK 0
SO 0
SCK 0
SCK 0
IN
IN
Q560
RF VIDEO
SI 0
VIDEO
CJ570
AUDIO
LINE
OUT
L
R
VHF/
UHF
4CH
3CH
S701
RF CH
OUT
RF
TU700
TUNER/MOD/IF
RF VIDEO
TU VIDEO
RF AUDIO
MPX
AFT
TV/VTR
PLL DATA
PLL CLOCK
PLL ENB
AFT
Q VD
S VHS
C SYNC
S OUT 1
S CLK 1
RF SWP
RF ENV
SYSTEM
CONTROL
IC160
DRUM
SERVO
CAPSTAN
SERVO
D VS
D PG
D FG
CAP VS
CAP FG
CTL REC/PB
IC100
IC100
IC140 IC141
AMP
CTL
DRUM MOTOR
DRUM
M
MOTOR
DRUM
PG
DRUM
FG
CAPSTAN MOTOR
CAPSTAN
M
MOTOR
CAPSTAN
FG
CTL
AMP
IC101
IC733
ST/BILNG
PROCESSOR
MPX
F MONO,MAIN/SAP
SAP,STEREO
SIGNAL
CONTROL
I2C DATA 1
I2C CLOCK 1
AF ENV
AF SWP
AF REC
AF SWP
REC P
REC P
CAM +,-
MODE1-4
T REEL FG
S REEL FG
T SENS
S SENS
T/S LED
NICOLON
CDC POWER
PH102
T REEL
PH101
S REEL
T SENS
S SENS
Q103
LED
DRIVE
Q101
Q102
IC980
SIRCS
SIRCS
CBC I/O
LOADING
MOTOR
SW12V
D103
(T/S LED)
CNJ981
IN
CNJ980
OUT
ROTARY
SWITCH
CABLE BOX
CONTROL/
CONTROL S
LOADING
M
MOTOR
(SEE PAGE 4-33)
AN-16
BOARD
(SEE PAGE 4-34)
AN-17
BOARD
CNJ001
CPD
SMARTFILE
SENSOR
BLOCK
IC001
IC002
MANCHESTER
CODE
MOD./DEMOD.
/SERIAL
TRANSFER
CONTROL
IC003
IN
IC004
EEPROM
NL-2
BOARD
(SEE PAGE 4-37)
SMARTFILE
CONTROL
SO 0
SI 0
SCK 0
FULL
ERASE
HEAD
IC464
REMOTE
CONTROL
RECEIVER
IC462
EEPROM
IC460
MODE
CONTROL
SO 0
SCK 0
SI 0
SIRCS IN
SIRCS OUT
IC463
POWER
FAIL DET
RESET
PULSE GEN
SI 0
SO 0
SCK 0
VSET CS
H DET
16
ND420
FLUORESCENT
INDICATOR TUBE
-F +F
S403-410
A/D0-2
FUNCTION
KEY
S411,412
A/D3
FUNCTION
DMS1,2
KEY
FR-139 BOARD
(SEE PAGE 4-29)
PAUSE
(SEE PAGE 4-31)
DM-81
BOARD
S441-443
FUNCTION
KEY
DMS
BLOCK
3-1 3-2
SLV-M10HF
3-2. VIDEO BLOCK DIAGRAM
MA-335 BOARD
(SEE PAGE 4-32)
AJ-2
BOARD
L2 V
CN801
CN423
1
1
(SEE PAGE 3-12)
SW3SW3
SW7
SW4
SW8
SW6
SW10
SW5
SW9
REC
SW1
REC
SW2
200mV/Div 0.1µ sec/div
PB
PB
PB
PB
CN260
11
10
7
6
9
8
13
12
3
2
5
6
13
14
11
10
4
12
CN261
REC CURR
1
PB RF
2
RF SWP
3
CN261 2 PB
CN261 3 PB
5Vp-p
16
30Hz
IC260 4 REC
1V/Div
0.1µ sec/div
CH1
CH2
CH1
CH2
SP
SP
EP
EP
CJ801
LINE 2
IN
VIDEO
CJ570
LINE 1
IN
VIDEO
DRUM
VIDEO
HEAD
CHECK
PIN
(SEE PAGE 4-5,8,15,17,19)
FROM/TO
TUNER
TU700
BLOCK
VIDEO REC/PB AMP
COMP
REC
IDEL
VCA
30
IC260 #º REC
CN261 1 REC
36
IC201 @• REC
IC260
PB RF
REC RF
0.5V/Div
0.1µ sec/div
H
HPF
LOGIC
CJ570
LINE
Q502
Q211
BUFFER
CLP
BUFFER
Q875
BUFFER
Q873,874
WAVE
SHAPER
IC871 #º REC/PB
R
P
IC871
SYNC
DET/SET
26
VIDEO
SO
SI
SCK
28
H SYNC
IRQ
29
V SYNC
RESET
31
30
X871
4.8Vp-p
8MHz
FSC
BPF
R
P
R,A
VXO1
B
SERIAL
DECODER
IC501 !º REC/PB
(2/2)
340mVp-p
10
11
2
3
8
9
VIDEO
VCO I
VCO O
V IN
EXS
XS
13
503.5kHz
0.65Vp-p
IC501
AFC
IC500
OSD
H SUNC
V SYNC
V SYNC
Q210
BUFFER
IC201 $• PB
IC201 %º PB
DET
YOUT
HD
9
VD
5
8
25
12
13
23 S IN
22 S CLK
18 CS
11
52
26
0.23Vp-p
H
Q871,872
VIDEO
2Vp-p
Q209
BUFFER
1 50
3
IC201 $• REC
IC201 %º REC
0.5Vp-p
S VHS
DET
68 65 69
AMP
X501
X500
14.318MHz
IC202
1H
DL
Q208
DE
EMPH.
H
SW 5V
IC500 3 , @∞ REC/PB
IC201 #∞ REC
1Vp-p
35
37
15
Q801
BUFFER
Q802
H
VIDEO
AGC
SUNC
SEP
IC201 !∞ PB
C ROT 66
R
P
PB Y/C
Q802,803
EQ AMP
Q851-854
CLAMP
B PB
0.2V/Div
0.1µ sec/div
RF ENV IC160 60
C SYNC IC160
S OUT1 IC160
S CLK1 IC160
RF SWP IC160
200mV/Div 0.1µ sec/div
C
LPF
SEQ
Q804,D801
PB RF
Q855-857
SHAPER
R
P
R
P
Q806-808
BUFFER
WAVE
Q810 E PB
66
FROM/TO
80
SYSCON
81
(SEE PAGE 3-6)
1
Y/C
MIX
Q809
BLOCK
ACC
AMP
Q805
SP
SW
SW
0.1V/Div
0.1µ sec/div
R
P
(1/2)
IC201
Y/C PROCESSOR
Y/C 1
30
CLP
TU V
1Vp-p
ENV
DET
C ROT
C SYNC
CLOCK
RF SWP
DATA
Y/C 2
32
CLP
Y/C 3
28
CLP
IC201 #¶ REC/PB
H
IC260 !• REC/PB
SW5V
L263
29
16
26
L262
IC260 !¶ REC/PB
5Vp-p
30Hz
21
18
19
20
17
34
4Vp-p
2.3Vp-p
H
Q260
BUFFER
22
AGC
24
Q204
C
TRAP
27
Q201
BUFFER
28
IC260 @™ PB
200mV/Div
0.1µ sec/div
IC260 @• REC
COMV.
Q810
BUFFER
R
P
MAIN
IC201 #• REC/PB
H
QH/QV
INS
SEP Y NR
R
P
KIL
14
21
20
18
S
N
REC RF
VIDEO
AMP
CLP
2Vp-p
BPF
AGC
R P
FM
REC
NT
EQ
IC500 9 REC/PB
5Vp-p
14.31818MHz
L204
36 Y VCC
47 C VCC
L206
38
40
42
5
43
12
DL
EQ
R
P
DEM
FM
MOD
H
SW5V
BUFFER
(1/2)
IC202
1H
DL
CLK
48
25
IC201 @∞ REC
H
DE
EMPH.
Q214
Q505
7
10
BUFFER
20mV/Div
0.1µ sec/div
Q560
BUFFER
Q803
RF VIDEO TU700
P CONT1 CN162
17
16
15
32
19
SI0 CN162
SO0 CN162
SCK0 CN162
V SET CS CN162
SYS RESET CN162
HDET CN162
CG CS CN164
CG V CN164
33
Q VD IC160
5
(SEE PAGE
3-11)
21
7
8
6
18
20
2
12
23
FROM/TO
(SEE PAGE
3-6)
4
TO
TUNER
BLOCK
SYSCON
BLOCK
45
46
56
55
64
IC201 $∞ PB
H
X201
3.579MHz
IC201 %§ REC
IC201 %§ PB
I2C DATA VIDEO IC160
I2C CLOCK VIDEO IC160
S VHS IC160
3.579545MHz
550mVp-p
3.579545MHz
500mVp-p
500mVp-p
28
30 63
12
OUT
VIDEO
3-3 3-4
3-3. SERVO/SYSTEM CONTROL BLOCK DIAGRAM
SLV-M10HF
DRUM MOTOR
M901
OUTPUT
M902
OUTPUT
SW5V
HALL
DEVICE
M
HALL
DEVICE
CAPSTAN MOTOR
MATRIX
CAPSTAN
U+
UV+
VW+
W-
U
V
W
VCC
MA-335 BOARD
M12V
D VS
D PG
D FG
LIMITER
D107
CVS
CAP RVS
CAP FG
MODE1
MODE2
MODE3
MODE4
M12V
IC141
CTL AMP
13
D109
SW5V M12V
CN101
1
1
2
2
3
PG
FG
VM
VCC
TL
FG
CTL
HEAD
LOADING
MOTOR
CAM
ENCODER
MECHA
(
POSITION
3
4
4
CN102
7
7
1
1
6
6
5
5
2
2
3
3
CN301
6
5
CN103
CN103
1
2
M
3
4
3
2
(
1
(SEE PAGE 4-8, 11, 26)
IC100
CAP ERR
INTEG
7
IC161 ^• REC/PB
IC161 ^ª REC/PB
PS101
IC100
CAP ERR
INTEG
1
IC161 &º REC/ PB
IC140
CTL
REC/PB
AMP
(1/2)
REF 2.5V
5
6
5Vp-p
30Hz
5Vp-p 360Hz
(2/2)
REF 2.5V
3
2
5Vp-p
1.078kHz
7 2
Q140
GAIN
SW
IC161
SERVO CONTROL
74
DRUM DA
68
DRUM PG
69
DRUM FG
84
CAP TRQ PWM
99
STEP PLS
35
CAP STOP
73
CAP DA
72
CAP RVS
70
CAP FG
7
REC CTL
67
PB CTL
92
CTL HYSHIGH
8
CTL RESET
(1/2)
IC161 &¢ REC/PB
5Vp-p
360Hz
IC161 &£ REC/PB
5Vp-p
360Hz
IC161 7 REC
4Vp-p 30Hz
IC161 ^¶ REC
5Vp-p
30Hz
M12V
L101
D103
D103
T/S LED
D6V
IC101
LOADING
MOTOR DRIVE
8
VCC1
9
VCC2
2
CAM+
10
CAM-
SW12V
IN1
IN2
3
4
D6V
PH102
T REEL
PH101
S REEL
TAKE END
SENSOR
SUPPLY END
SENSOR
S101
REC
PROOF
IC161 $£ REC/PB
3Vp-p
16MHz
D161
FG
FG
Q101
Q102
Q103
LED
DRIVE
L161
X160
16MHz
MODE1
MODE2
MODE3
MODE4
53
AVREF
54
AVDD
89
VDD
90
5V
64
T REEL FG
63
S REEL FG
61
T SENS
62
S SENS
32
T/E LED
15
REC PRF
42
XTAL
43
EXTAL
9
CAM2
22
21
20
19
MODE1
MODE2
MODE3
MODE4
(2/2)
IC161
SYSTEM CONTROL
CLOCK(SSB)
ASURA RESET
SDA 0
SCL 0
AF REC
S VHS
RF ENV
V SYNC
DATA(SSB)
RF SWP
NICOLON
S CLK
S IN 0
S OUT 0
ASURA CS
F MONO
TA MUTE
TV/VTR
Q214
IC201
IC201
IC260
IC201
IC260
IC260
IC260
IC201
IC871
IC500
IC500
IC871
IC871
IC501
IC500
IC500
Q503
Q604
IC601
REG OUT
CONTROL
S OUT
CONTROL
S IN
41
42
70
39
,IC360
1
4
5
,IC201
65
64
63
26
,IC260
37
19
20
17
33
17
,IC871
23
,IC871
22
19
32
8
24
11
4
1
9
11
11
10
8
33
21
FROM/TO
20
TUNER
BLOCK
22
(SEE PAGE 3-12)
7
5
4
40
(SEE PAGE 3-8)
18
(SEE PAGE
3-3, 4)
16
15
TO
POWER
BLOCK
FROM/TO
AUDIO
BLOCK
FROM/TO
VIDEO
BLOCK
SIRCS OUT
SIRCS IN
P CONT2
P CONT1
VSET CS
SYS RESET
ASURA CS
PLL ENABLE
PLL CLOCK
PLL DATA
TU AFT
MAIN/SAP
STEREO
LANC IN
LANC OUT
CG V
CG CS
H DET
S CK 0
S O 0
S I 0
SAP
D6V
CN162
CN165
22
21
23
12
18
20
19
15
14
13
11
16
17
10
5
3
2
6
8
7
4
9
2
3
4
FOR
CHECK
CNJ980
OUT
CNJ981
IN
TO/FROM
MODE
CONTROL
BLOCK
(SEE PAGE 3-9)
CABLE BOX
CONTROL/
CONTROL S
28
30
31 A MUTE
59 AF ENV
100 AF SWP
2 AF REC P
96
12
IC161 1 REC/PB
100
IC161
5Vp-p
60
66
80
81
1
77 REC CONT
4 Q VD
49 CBC POWER
48
40
47
45
46
44
50
11
26
30Hz
I2C DATA1 IC360
I2C CLOCK1 IC360
A MUTE IC201
AF ENV IC360
AF SWP IC340
AF REC P IC340
AF REC IC340
S VHS
I2C DATA VIDEO
I2C CLOCK VIDEO
RF ENV
C SYNC
S OUT1
S CLK1
RF SWP
Q VD
S I 0
S O 0
S CK 0
SYS RESET
VSET CS
H DET
CG CS
CG V
P CONT1
P CONT1
P CONT2
IC980
SIRCS/CBC
I/O
REG
12
ON/OFF
6
STATUS
4
S IN
5
S OUT
STEREO IC733
SAP IC733
MAIN/SAP IC733
TU AFT TU700
PLL DATA TU700
PLL CLOCK TU700
PLL ENABLE TU700
F MONO IC733
TA MUTE IC733
TV/VTR TU700
16
3-5 3-6
SLV-M10HF
3-4. AUDIO BLOCK DIAGRAM
CJ570
LINE 1
IN
CJ801
LINE 2
IN
CH1
CH2
DRUM
AUDIO
HEAD
AUDIO
AUDIO
FOR
CHECK
L
R
L
R
MA-335 BOARD
FM PB
3
HF ADJ
1
CN341
CN260
3
2
1
17
18
24
20
16
13
(SEE PAGE 4-32)
AJ-2
BOARD
CN801
L2 L
L2 R
3
5
REC ON
PB ON
3
5
(SEE PAGE 4-5, 21)
IC340
AFM
REC/PB
AMP
HA
VCC
VCC
HA
CA
AGC
AGC
DET
CN423
AGC
AMP
SW5V
14
VCC
EP
SP
L341
H SW
REC MUTE
REC
41
HF
LPF
IC360
AUDIO
PROCESSOR
(HIFI)
VCO
VCO
INPUT SEL
PNR
PNR
15
14
SEL
NORMAL IN
NORMAL OUT
MUTE
MUTE
MUTE1213
16
17
RF AUDIO TU700 1
FROM/TO
TUNER
BLOCK
3
(SEE PAGE 3-11, 12)
4
SW5V
76
AVCC
PB
PB
ALC
REC
REC
LINE
AMP
MUTE
MUTE
CTL
REC
REC:EP,LP
PB:EP
TU AUDIO L IC733
TU AUDIO R IC733
(2/2)
EQ
PB:
LP,SP
3
4
10 11
9
8
1
2
21
20
IC201
AUDIO
PROCESSOR
(MONO)
7
75
73
71
A-H SW
80
AUTO
AUTO
BIAS
6
Q301
BIAS
SW
Q387
77
79 1 5
70
MUTE
Q386
Q379
MUTE
MUTE
SW
OUTPUT
L
L
SEL
L
R
AUDIO
CJ570
LINE
OUT
SW12V
35
SW12V
SW12V
HF
LPF
3
9
1
4
5
FM PB
FM REC
37
36
40
AF SWP
AGC
AMP
LEVEL
DET
SCL42SDA
39 5 6 3 4
NOMAL
AUDIO
AUDIO
REC/PB
HEAD
FULL
HEAD
FULL
ERASE
HEAD
HEAD
CN301
1
IC301
HEAD
2
4
1
CN302
16
SW
T331,Q331
BIAS
ERASE
OSC
4 2
SW5V
A MUTE IC161 31
I2C DATA1 IC161
I2C CLOCK1 IC161
AF ENV IC161
AF SWP IC161
AF REC P IC161
AF REC IC161
28
FROM/TO
30
SYSCON
59
BLOCK
(SEE PAGE 3-6)
100
2
96
3-7 3-8
3-5. MODE CONTROL BLOCK DIAGRAM
SLV-M10HF
FROM/TO
SYSCON
BLOCK
(SEE PAGE 3-6)
FR-139 BOARD
CN460
SIRCS OUT
27
SIRCS IN
29
P CONT 2
10
P CONT 1
11
CG V
9
CG CS
20
H DET
30
VSET CS
14
SYS RESET
12
S CK 0
26
S O 0
24
S I 0
25
ASURA CS
13
PLL ENABLE
17
PLL CLOCK
18
PLL DATA
19
TU AFT
21
MAIN/SAP
16
SAP
15
STEREO
28
LANC IN
23
LANC OUT
22
16
(SEE PAGE 4-29)
L182
D6V
D463
D462
5
7
2
CONTROL
RECEIVER
BZ460
IC463
RESET
PULSE
GEN.
POWER
FAIL
DET.
IC464
REMOTE
IC462
EEPROM
MODE
SDA
SCL
VL+
1
2
VS+
1
VS-
2
(SEE PAGE 4-34)
CN101
11
VL-
2
CN201
11
2
(SEE PAGE 4-33)
AN-17
BOARD
AN-16
BOARD
NL-2 BOARD
CNJ001
CPD
IN
CN464
SCK0
4
SO0
2
SI0
3
RESET
5
X CS
IC460
TIMER/TUNER
MODE CONTROL
24
AVDD
72
VDD
75
VPP
6
8
1
5
6
7
34
RST
2
POWER FAIL
6
SIRCS OUT
4
SIRCS IN
79
P CONT 2
78
P CONT 1
80
CG V
27
CG CS
3
H DET
40
VSET CS
77
SYS RESET
10
S CK 0
12
S O 0
11
S I 0
76
ASURA CS
37
PLL ENABLE
35
PLL CLOCK
36
PLL DATA
23
TU AFT
37
MAIN/SAP
35
SAP DET
36
STEREO DET
14
LANC IN
15
LANC OUT
28
SDA
26
SCL
13
WC
7
BUZZER
G1
G10
SEG1
SEG16
X CS
EXTAL
XTAL
TEX
JOG LED
A/D 4
A/D 3
DMS 2
DMS 1
A/D 2
A/D 1
A/D 0
ML LED
71
62
44
59
22
43
X460
16MHz
42
TX
55
X461
32.768kHz
54
29
20
19
42
41
74
17
16
21
S406
CURSOR
S411
REW
Q461
LED
DRIVE
Q460
LED
DRIVE
ND420
VACUUM FLUORESCENT
INDICATOR TUBE
S412
FF
S404
SMART
FILE
S405
EASY
SETUP
S409 S410
CH
D464
SMARTFILE
D460
POWER ON
S403
COMMAND
MODE
D5V
D5V
CH+
F+
F-
-30V
S407
OK
FROM
POWER
BLOCK
S408
INPUT
SELECT
1
CN461 CN440
JOG LED
55
PAUSE
4
A/D 4
3
DMS 2
1
DMS 1
2
Q015
CN004
4
2
3
5
1
DM-81 BOARD
4
3
1
2
(SEE PAGE 4-37)
IC003
SMARTFILE CONTROL
56
DSS IN
48
SCK0
49
SI0
50
SO0
30
RST
47
CS0
SDA0 SCL0
80 78
5 6
IC004
EEPROM
S444
PAUSE
S441
EJECT
MANCHESTER CODE MOD./DEMOD.
53 SO1
52 SI1
SCK1
51
X RST
8
ANT SEL
7
REQ
9
TOTAGZ
10
SINT
60
(SEE PAGE 4-31)
Q440
LED
DRIVE
S442 S443
IC002
/SERIAL TRANSFER CONTROL
44
SI
CAR L+
CAR L-
ANT L SW
MD L
CAR S+
CAR S-
ANT S SW
MD S
CN441
27
23
20
21
19 RD
31
29
37
36
15 XTAL
14 EXTAL
1
2
3
4
5
JOG REC
43
42
5
4
41
40
7
SO
CLK
RST
ANT SEL
REQ
TOTAGZ
SINT
D440
JOG
IC001
PLAY
STOP
COM
DMS 2
DMS 1
X001
13.56MHz
S1
DUAL MODE
SHUTTLE
PLAY
STOP
Q001-003,005
Q007,010,016,017
(FRONT)
SMARTFILE
SENSOR
Q004,006,008,009
Q011,012,018,019
(INNER)
SMARTFILE
SENSOR/WRITER
CN001
CN002
3-9 3-10
SLV-M10HF
3-6. TUNER BLOCK DIAGRAM
MA-335 BOARD
(SEE PAGE 4-23)
IN
VHF/
UHF
OUT
CH 4
CH 3
S701
RF CH
TUNER/MOD/IF
2
TU700
SPLITTER
TV
VTR
RF
MOD
51 4
SW5V 30V
18 19 3
5V
30V
RF
MPX
AFT
ENABLE
CLOCK
20 21 22
IF
L704
L703
5V
DATA
L731
36
35
33
RV731
SEPARATION
IC733
ST/BILINGUAL
PROCESSOR
1
VCC
12
MPX IN
MS0
MS1
TU VIDEO IC201
32
TO
VIDEO
BLOCK
(SEE PAGE 3-3)
L
3
R
4
TU AUDIO L IC360
TU AUDIO R IC360
1
2
TO
AUDIO
BLOCK
(SEE PAGE 3-8)
11 ST IND
10 SAP IND
8
5
STEREO CN162
SAP CN162
MAIN/SAP CN162
4
17
16
FROM
VIDEO
BLOCK
(SEE PAGE 3-4)
FROM
AUDIO
BLOCK
(SEE PAGE 3-8)
16
Q560
IC360
12
RF VIDEO
RF AUDIO
F MONO
MUTE
Q731
7
5
F MONO IC161
TA MUTE IC161
50
11
FROM/TO
SYSCON
BLOCK
(SEE PAGE
TU AFT CN162
PLL DATA CN162
PLL CLOCK CN162
PLL ENABLE CN162
TV/VTR IC161
11
3-6)
13
14
15
26
3-11 3-12
3-7. POWER SUPPLY BLOCK DIAGRAM
SLV-M10HF
POWER
BLOCK
MA-335 BOARD
CN603
30V
11
9
13V
.
10
4
6V
.
5
+F
1
-F(0V)
2
-30V
3
(SEE PAGE4-5,8,11,15,19,21,23,25)
L604
+30V
IC601
4
REG
SW12V
2 1
P CONT 2
P CONT 2
SW5V
SW5V
SW5V
D6V
M12V
M12V
P CONT 2
-30V
F+
PS600
L607
L605
L606
12V
REG
Q603,606
SW 5V
JS609
Q604,605
MOTOR
12V SW
IC002
MANCHESTER
CODE MOD./DEMOD.
/SERIAL TRANSFER CONT.
6
VDD
16
VDD
28
VDD
38
VDD
IC001
L004
AMP
8
V+
D005
IC460
TIMER/TUNER
MODE CONT.
24
AVDD
35
AVREF
72
VDD
75
VPP
43
VFDP
78
POWER CONT 1
79
POWER CONT 2
IC462
EEPROM
8
VCC
IC463
RESET
5
VCC2
PULSE
GEN.
POWER
7
VCC1
FAIL
DET.
IC003
SMARTFILE
CONTROL
72
VDD
73
N.C
37
AVREF
IC004
EEPROM
8
VCC
NL-2 BOARD
(SEE PAGE 4-37)
FR-139 BOARD
(SEE PAGE 4-29)
IC464
REMOTE
CONTROL
RECEIVER
2
VCC
ND420
FLUORESCENT
INDICATOR TUBE
D420
F- F+
IC160
IC733
ST/BILNG
PROCESSOR
VCC
1
IC201
Y/C PROC.
36
Y VCC
47
C VCC
IC202
1H DELAY
2
VDD
L301
(1/2)
IC201
AUDIO PROC.
(MONO)
76
IC100
DRUM
CAPSTAN
8
Q101,102
SENSOR
PH100,101
REEL
L502
L503
AVCC
AMP
VCC
T/S
T/S
(2/2)
4
7
13
IC500
OSD
AVCC
VCC
IC501
AFC
VCC
CN165
SW12V
D 6V
CN163
D 6V
CN162
D 6V
P CONT 1
P CONT 2
-30V
+F
-F
SMARTFILE
SENSOR BLOCK
L008
L007
L006
L003
L002
L009
L010
CN003
CN460
PS001
PS002
L182
D462
D464
SMART
FILE
D460
POWER
ON
D463
D5V
6
CN461
D008
D008
4
4
3
3
CHECK
4
PIN
24
25
21
22
29
30
31
8
.
.
7
11
10
3
2
1
TU700
5V
5V
R705
30V
30V
18
3
L703
L704
5V
32
19
L731
L204
IC260
L202
L263
VIDEO
REC/PB AMP
16
VCC
29
VCC
L206
IC340
L331
T331,Q331
BIAS
ERASE
OSC
L341
REC/PB AMP
REC/PB AMP
14
IC301
HEAD SW
1
VCC
AFM
VCC
IC360
AUDIO PROC.
(HIFI)
35
12V
IC871
SYNC
DET/SET
F-
D161
D161
20
L160
VDD
SERVO/SYSTEM
CONTROL
53
AVREF
54
AVDD
89
VDD
90
5V
IC980
SIRCS/CBC
I/O
14
D982
13
REG IN
VCC
IC140
PS101
CTL AMP
8
VCC
IC141
CTL AMP
8
VCC
D109
CN101
MTR 12V
CN102
MTR 12V
SW 5V
1
7
1
DRUM
MOTOR
CAPSTAN
MOTOR
L101
IC161
LOADING
MOTOR
DRIVE
8
VCC1
9
VCC2
L140
L141
16
DM-81 BOARD
(SEE PAGE 4-31)
CN440
6
Q440
Q440
LED
DRIVE
D440
JOG
3-13 3-14E
PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
4-1. FRAME SCHEMATIC DIAGRAM
SECTION 4
SLV-M10HF
4-1 4-2
FRAME SCHEMA TIC DIAGRAM
MA-335 (REC/PB AMP) SCHEMATIC DIAGRAM
— Ref. No.: MA-335 Board; 1,000 Series —
SLV-M10HF
MA-335 BOARD
CJ570 A-3
CN101 C-7
CN102 E-2
CN103 I-4
CN162 J-12
CN163 I-12
CN165 G-11
CN260 B-9
CN261 B-7
CN301 B-4
CN302 B-5
CN341 B-10
CN423 C-12
CN603 H-1
CNJ980 A-2
CNJ981 A-1
D103 F-6
D107 G-8
D109 F-4
D161 J-8
D370 C-10
D379 A-11
D502 C-1
D503 C-2
D504 C-2
D560 B-3
D561 A-10
D611 J-3
D612 J-3
D614 J-3
D702 F-12
D801 D-9
D802 D-9
D980 A-2
D981 A-2
D982 B-1
D983 A-1
D984 A-1
IC100 G-6
IC101 I-3
IC140 H-11
IC141 A-5
IC161 I-9
IC201 D-5
IC202 E-5
IC260 B-8
IC301 B-5
IC340 B-10
IC360 B-11
IC500 C-1
IC501 D-1
IC601 E-12
IC733 H-13
IC871 I-6
IC980 B-1
PH101 H-8
PH102 H-4
Q101 F-1
Q102 F-10
Q103 F-5
Q140 H-10
Q201 C-3
Q204 C-3
Q205 C-3
Q208 D-4
Q209 E-4
Q210 E-5
Q211 D-6
Q214 D-6
Q260 B-7
Q301 C-5
Q331 C-6
Q379 A-11
Q386 A-11
Q387 A-11
Q502 B-2
Q503 B-2
Q505 D-1
Q560 B-3
Q603 J-2
Q604 J-3
Q605 J-4
Q606 J-2
Q731 H-13
Q801 B-8
Q802 E-10
Q803 E-9
Q804 E-9
Q805 E-9
Q806 E-8
Q807 E-8
Q808 E-8
Q809 D-8
Q810 E-8
Q851 C-8
Q852 C-8
Q853 D-8
Q854 D-8
Q855 D-8
Q856 D-8
Q857 D-8
Q871 I-5
Q872 I-5
Q873 I-5
Q874 I-5
Q875 H-5
MA-335
1
2
BOARD
IC260 4 REC
1V/Div
0.1µ sec/div
IC260 #º REC
CN261 1 REC
0.5V/Div
0.1µ sec/div
3
IC260 @• REC
20mV/Div
0.1µ sec/div
4
IC260 @™ PB
200mV/Div
0.1µ sec/div
5
IC260 !• REC/PB
H
2.3Vp-p
DC PB
SP CH1
REC BIAS
SP CH1
PRE AMP IN
SP CH1
REC AMP
OUT SP
PRE AMP IN
SP CH2
REC BIAS
SP CH2
DC PB
SP CH2
GND
DC PB
EP CH2
REC BIAS
EP CH2
PRE AMP IN
EP CH2
REC AMP
OUT EP
PRE AMP IN
EP CH1
REC BIAS
EP CH1
DC PB
EP CH1
REC CURR.
MAIN VCC
REC Y+C IN
PB FM AGC
ENV DET
AGC DET
PB FM AGC
PRE AMP OUT
REC AMP IDLE ADJ
CHROMA 30
SSB CLK
SSB DATA
SYNC IN
SW30 IN
THIS NOTE IS COMMON FOR PRINTED WIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is
printed in each block.)
• For printed wiring boards.
• b : Pattern from the side which enables seeing.
Caution :
Pattern face side: Parts on the pattern face side
DET
OUT
OUT
IN
GND
OUT
VCC
(Conductor Side) seen from the pattern face are
indicated.
Pattern face side: parts on the parts face side seen
(Component Side) from the parts face are indicated.
• For schematic diagrams.
• Caution when replacing chip parts.
New parts must be attached after removal of chip.
Be careful not to heat the minus side of tantalum
capacitor, because it is damaged by the heat.
• All resistor are in ohms, 1/4W unless otherwise noted.
Chip resistor are 1/10W unless otherwise noted.
kΩ : 1000Ω , MΩ , : 1000kΩ .
• All capacitors are in µ F unless otherwise noted. pF : µ
µ F . 50V or less are not indicated except for electrolytics
and tantalums.
• C : panel designation.
•
: internal component.
• A : B+ Line. *
• B : B– Line. *
• J : IN/OUT direction of (+,–) B LINE. *
• Circled numbers refer to waveforms. *
• Readings are taken with a color-bar signal input.
• Voltage are dc between ground and measurement
points.*
• Readings are taken with a digital multimeter (DC10MΩ ).*
• Voltage variations may be noted due to normal production
tolerances.*
MA-335
REC/PB AMP , VIDEO, AUDIO,
SERVO/SYSTEM CONTROL,
TUNER
AJ-2
(LINE-2 IN)
AN-17
FRONT
SMARTFILE
SENSOR
FR-139
(MODE CONTROL)
NL-2
(SMARTFILE)
AN-16
INNER SMARTFILE
SENSOR/WRITER
POWER BLOCK SR821
DM-81
(OPERATION SWITCHES)
6
IC260 !¶ REC/PB
CN261 3 REC/PB
5Vp-p
30Hz
4-5
NC
PSW1
EP/SP
A-HEAD PULSE
FILT1
PB-FM OUT
PB GND
RECMUTE
CH2-IN
REC
FILT2
PSW2
CH1-IN
GND
BUFF IN
BUFF OUT
REC OUT
REC FM IN
REC BIAS
AGC FILT
VCC
REC MODE
REC-CURR-ADJ
REC OUT GND
4-6 4-7
When indicating parts by reference number, please
include the board name.
• * : indicated by the color red.
REC/PB AMP
MA-335 (1/10)