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5-4
Pin No.
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
Pin Name
OSD W LEVEL
OSD V OUT
OSD Vcc
HLF
OSD SECAM C IN
C. VIDEO IN
NUA
DEC/VTR
PDC DAV
SECAM DET
DNR RESET
TA MUTE
A MUTE
MTR 12V CONT.
SW 12V CONT.
FLD CS
SECAM ON/SUR ON
FLD OUT
FLD IN
FLD CLK
SCL
SDA
AV-LINK OUT
–14V CONT
C+ 5V CONT
CAP ERROR
DRUM ERROR
P FAIL
S REEL
T REEL
DMS+
DMS–
TU SW1
TU SW2
AV-LINK IN
C+ DET
CAP FG
AMP Vss
DRUM FG
DRUM PG
AMP VREF OUT
AMP VREF IN
RC CHECK
CTL –IN
CTL +IN
AMP C
CTL AMP OUT
AMP Vcc
AVcc
AUTO PRESET
I/O
I
O
I/O
I
I
O
I
I
O
O
O
O
O
O
O
O
I
O
I/O
I/O
O
O
O
O
O
I
I
I
I
I
O
O
I
I
I
I
I
I
I/O
I/O
O
O
Function
OSD white level input
OSD video signal output
Power supply input terminal for OSD/slicer (4.75 V to 5.25 V)
LPF connection terminal for slicer/AFC (This terminal is used as the HLF terminal
when C. Video is input to pin-56.)
Color signal input for SECAM OSD
Video signal input for tuner’s station selection, OSD and servo sync signal detection
(after passing filter)
Connected to Ground
Decoder/VTR switching
PDC/VPS signal reception identification input
SECAM identification input
DNR IC reset signal
Tuner audio mute signal output
Audio mute signal output
Motor 12 V power control signal
SW 12 V power control signal
Chip selection signal for display tube driver
SECAM ON signal/surround audio control (switched by destination)
Serial data out CH0 (FLD)
Serial data in CH0 (FLD)
Serial clock CH0 (FLD)
I2C clock (video/HiFi/tuner/ARC/modulator/VPS/DNR control)
I2C data (video/HiFi/tuner/ARC/modulator/VPS/DNR control)
AV-LINK data output for communication
Power save control (equivalent of pin-98 save CONT 1)
Power save control (equivalent of pin-98 save CONT C+)
Capstan error output
Drum error output
Power failure detection input
Supply reel sensor input
Tape up reel sensor input
DMS 2-phase pulse 1 input
DMS 2-phase pulse 2 input
Turner system BG/L selection signal
Turner system BGL/L selection signal
Data inpu for AV-LINK communication
CANAL + connection identification input
Capstan FG input
Ground terminal for analog amplifier (connected to Vss)
Drum FG input
Drum PG input
Analog amplifier reference power supply output terminal
Analog amplifier reference power supply output terminal
Input for RC setting
CTL signal input/output terminal
CTL signal input/output terminal
CTL amplifier AC Ground terminal
CTL amplifier output
Power supply input terminal for analog amplifier (connected to Vcc)
Power supply input and reference voltage input to A-D converter
H at Auto preset
5-5E
5-7. MODE CONTROL PIN FUNCTIONS (MA-338 BOARD IC420)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
Pin Name
VDD
X OUT
VSS
X IN
RESET
AN5
AN4
AN3
AN2
AN1
AN0
CS
D IN
D OUT
CLK
VEE
VEE
LED1
LED2
NC
G1
G2
G3
G4
G5
G6
S17
S16
S15
S14
S13
S12
S11
S10
S9
S8
S7
S6
S5
S4
S3
S2
S1
VDD
I/O
O
I
I
O
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Function
D5V
X’ tal out
Ground.
X’ tal in
RESET input.
Ground.
Ground.
Ground.
Ground.
Ground.
Ground.
FLD chip select signal out.
FLD IIC BUS (data) input.
Not connect.
FLD clock.
–14V
–14V
LED control signal input.
JOG LED control signal output.
Not Connect.
Grid terminal 1.
Grid terminal 2.
Grid treminal 3.
Grid treminal 4.
Grid treminal 5.
Grid treminal 6.
Segment terminal 17.
Segment terminal 16.
Segment terminal 15.
Segment terminal 14.
Segment terminal 13.
Segment terminal 12.
Segment terminal 11.
Segment terminal 10.
Segment terminal 9.
Segment terminal 8.
Segment terminal 7.
Segment terminal 6.
Segment terminal 5.
Segment terminal 4.
Segment terminal 3.
Segment terminal 2.
Segment terminal 1.
D5V
6-1
SECTION 6
ADJUSTMENTS
SLV-SE10/SE20/SE25/SE30/SE40/SE45/SX10/SX25/SX40
6-1 MECHANICAL ADJUSTMENTS
For the mechanical adjustments, please refer to the
“VHS MECHANICAL ADJUSTMENT MANUAL
(S MECHANISM)” (9-921-647-11).
“VHS MECHANICAL ADJUSTMENT MANUAL
(S MECHANISM)” (9-921-647-11).
6-2. ELECTRICAL ADJUSTMENTS
See the adjusting part location diagram from on page 6-6
for the adjustment.
for the adjustment.
2-1.
PREPARATION BEFORE ADJUSTMENT
2-1-1.
Equipment Required
The measuring instruments used for this alignment include:
1)
1)
Monitor TV
2)
Oscilloscope, dual-trace, bandwidth of 30 MHz or more, with
delay mode (A probe 10:1 should be used unless otherwise
specified.)
delay mode (A probe 10:1 should be used unless otherwise
specified.)
3)
Frequency counter
4)
PAL Pattern generator
5)
Remote commander
6)
Digital voltmeter
7)
Audio generator
8)
Audio level meter
9)
Audio attenuator
10) Alignment tapes
KRV-51P (PAL)
Part No. : 8-192-955-57
2-1-2.
Equipment Connection
Unless otherwise specified, connect and adjust the measuring
instruments as shown in the following diagram.
instruments as shown in the following diagram.
Fig. 6-2-1
2-1-3.
Set-up of Adjustment
In this adjustment, PAL pattern generator is connected with LINE-
2 input terminal. When check to tuner, connected AERIAL terminal.
Check that the synchronizing signal of the Y signal has an amplitude
of approximately 0.7 V and that the burst signal has an amplitude of
approximately 0.3 V and its waveform is flat. And check that the
level ratio of burst signal to “red” signal is 0.30 : 0.66. The video
signal (color bar) used for electrical aligning this unit is shown in
Fig. 6-2-2.
2 input terminal. When check to tuner, connected AERIAL terminal.
Check that the synchronizing signal of the Y signal has an amplitude
of approximately 0.7 V and that the burst signal has an amplitude of
approximately 0.3 V and its waveform is flat. And check that the
level ratio of burst signal to “red” signal is 0.30 : 0.66. The video
signal (color bar) used for electrical aligning this unit is shown in
Fig. 6-2-2.
Fig. 6-2-2 Color Bar Signals of Pattern Generator
2-1-4.
Alignment Tape
• Contents of KRV-51P
J481
VIDEO IN
CN500
!ª
V OUT
Video output
(75
Ω
)
Pattern generator
VCR
Monitor TV
1
2
3
4
Mode
SP
LP
Period
7 minutes
3 minutes
7 minutes
3 minutes
Video signal
Color bar
Monoscope
Color bar
Monoscope
Audio signal
Hi-Fi
400Hz
(L/R)
Normal
400Hz
Red
Horizontal sync signal
Burst signal
(Should be flat)
(Should be flat)
Approx.
0.3 V
0.3 V
White (75%)
Approx. 0.3 V
Approx. 0.7 V
6-2
2-1-5.
Input/Output Levels and Impedance
Video input: LINE-1 (TV)/LINE-2 IN/LINE-3 IN
Input signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
sync negative
Video output: LINE-1 (TV)
Output signal: 1 Vp-p, 75 ohms, unbalanced,
sync negative
sync negative
Audio input: LINE-1 (TV)/LINE-2 IN/LINE-3 IN
Input level: –7.5 dBs
(0 dBs= 0.775 Vrms)
Input impedance: more than 47 kilohms
(0 dBs= 0.775 Vrms)
Input impedance: more than 47 kilohms
Audio output:LINE-1 (TV)
Standard level: –7.5 dBs at load impedance 47
kilohms
Output impedance: less than 10 kilohms
kilohms
Output impedance: less than 10 kilohms
2-1-6.
Adjustment Sequence
The adjustments should be performed in the following sequence.
2-2.
POWER SUPPLY CHECK
2-2-1.
Output Voltage Check (MA-338 Board)
Mode
STANDBY
+30 V Check
Measurement point
CN600 pin
1
Specified value
31.0 to 39.0 V
Mode
E-E
+6 V Check
Measurement point
Corrector of Q600
Specified value
5.56 to 6.25 V
–11 V Check
Measurement point
Corrector of Q602
Specified value
–13.5 to – 9.5 V
+12 V Check
Measurement point
IC600 pin
2
Specified value
11.7 to 12.3 V
+5 V Check
Measurement point
Emitter of Q600
Specified value
4.8 to 5.4 V
MTR12 V Check
Measurement point
Corrector of Q601
Specified value
12.6 to 14.6 V
[Check Method]
1)
1)
Each of these supply voltages must meet its specified value.
Power Supply Check
Servo System Adjustments
Audio System Adjustments
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