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5-6
5-7. TUNER/TIMER MODE CONTROL PIN FUNCTION (FR-119 BOARD IC470 CXP82960-001Q)
Pin. No.
Pin Name
I/O
Function
1
PDC DAV
–
Line 21H output pulse. Pulse signal synchronized with line 21 of input video signal.
2
DMS1
I
DMS 1 input
3
DMS2
I
DMS 2 input
4
SIRCS IN
I
SIRCS signal input
5
N.C.
–
Not used
6
N.C.
–
Not used
7
BUZZER
O
Buzzer output
8
POWER SAVE
O
Power supply control signal output
9
LED CS
O
LED driver chip select signal
10
SCK0
O
Clock for serial communication
11
SI
I
Serial data input
12
SO
O
Serial data output
13
H DET
I
Video signal detect signal input
14
LANC IN
I
LANC input
15
LANCE OUT
O
LANC output
16
A/D0
I
Key reading A/D input
17
A/D1
I
Key reading A/D input
18
A/D2
I
Key reading A/D input
19
A/D3
I
Key reading A/D input
20
A/D4
I
Key reading A/D input
21
A/D5
I
Key reading A/D input
22
A/D6
I
Key reading A/D input
23
AFT
I
AFT input
24
AVDD
–
UNSW 5V
25
AV REF
–
AD port reference input UNSW 5V
26
SCL
O
I
2
C BUS (clock)
27
CG CS
O
Character generator chip select signal
28
SDA
O
I
2
C BUS (data)
29
CME CS
O
CME chip select signal
30
AVSS
–
UNSW GND
31
EXTAL
–
System clock
32
XTAL
–
33
VSS
–
GND
34
RST
I
Reset signal in
35
PLL CLK
O
Tuner clock signal
36
PLL DATA
O
Tuner data signal
37
PLL ENABLE
O
Tuner enable signal
38
N.C.
–
Not used
39
C+DET
I
CANAL + detection
40
N.C.
–
Not used
Pin. No.
Pin Name
I/O
Function
41
N.C.
–
Not used
42
POWER FAIL
I
Power failure detect input
43
VFDP
–
–30V
44-62
SEG 1-19
O
LCD segment output
63
N.C.
–
Not used
64
N.C.
–
Not used
65
N.C.
–
Not used
66-71
GRID 6-1
O
LCD grid output
72
VDD
–
UNSW 5V
73
TX
–
Connected to oscillator for clock
74
TEX
–
75
NC/VPP
–
Connect to +5V
76
ASURA CS
O
S/S microcomputer chip select
77
SYS RESET
O
System reset signal output
78
POWER CONT 1
O
Power supply control signal output
79
POWER CONT 2
O
Power supply control signal output for EDS
80
CG V
I
Vertical sync. signal input
5-7
5-8. CME PIN FUNCTION (AL-11 BOARD IC800)
Pin. No.
Pin Name
I/O
Function
1, 2
–
Connect to UNSW 5V
3
LANC IN
I
LANC input
4
LANC IN
O
LANC output
5, 6
–
Not used
7-14
–
Connect to UNSW 5V
15
VSS
–
GND
17-27
–
Connect to UNSW 5V
28
AV 16 OUT
–
Not used
29
L 16 IN
–
Not used
30-33
–
Connect to UNSW 5V
34
CS
I
Chip select signal
35
SI
I
Serial data input
36
SO
O
Serial data output
37
SCLK
I
Clock for serial communication
38, 39
N.C.
–
Not used
40
RST
I
Reset signal in
41
VSS
–
GND
42
XTAL
–
System clock
43
EXTAL
–
44
VDD
–
UNSW5V
45-52
Connect to UNSW 5V
53
VDD
–
UNSW 5V
54
N.C.
–
Not used
55
N.C.
–
Not used
56
VSS
–
GND
57
AV LINC OUT
O
System LINC output
58-62
–
Not used
63-67
–
Connect to UNSW 5V
68
AV LINC IN
I
System LINC input
69-71
–
Connect to UNSW 5V
72-75
–
Connect to GND
76
VSS
–
GND
77
AVREF0
–
Connect to UNSW 5V
78
AVREF1
–
Connect to UNSW 5V
79
AVDD
–
UNSW 5V
80-87
–
Connect to UNSW 5V
88
VDD/VPP
–
UNSW 5V
89
VDD
–
UNSW 5V
90
VSS
–
GND
91-100
–
Connect to UNSW 5V
5-7E
6-1
During the adjustment, see the Parts Arrangement
Diagram for Adjustment on page 6-8.
Diagram for Adjustment on page 6-8.
6-1. MECHANICAL ADJUSTMENTS
Refer to the SERVICE MANUAL of VHS MECHANICAL AD-
JUSTMENT IV.
JUSTMENT IV.
6-2. ELECTRICAL ADJUSTMENTS
2-1. PRE-ADJUSTMENT PREPARATIONS
Necessary items and indications for total adjustment of electric cir-
cuit of this machine will be described in this chapter.
cuit of this machine will be described in this chapter.
2-1-1.
Instruments to be Used.
1)
Color TV
2)
Oscilloscope 1or 2 phenomena, band more than 30 MHz, deley
mode, as provided.
mode, as provided.
3)
Frequency counter (min. 8 digits)
4)
PAL pattern generator
5)
Digital voltmeter
6)
Audio level meter
7)
Audio generator
8)
Modulation Analyzer
9)
Distortion factor meter
10) Attenuator
11) Alignmeter tape
11) Alignmeter tape
Part Code: 8-192-605-36 (KRV-51P)
13) Extension cable (13P)
Part code: J-6090-054-A
RP-217 (CN260)
RP-217 (CN260)
↔
DRUM
2-1-2.
Connection
Unless otherwise specified, connect and adjust the measuring in-
struments as shown in the following diagram.
struments as shown in the following diagram.
Fig. 6-2-1
2-1-3.
Set-up of Adjutment
In this adjustment, PAL pattern generator is connected with LINE
input signal terminal. When check to tuner, connected AERIAL ter-
minal. Check that the amplitudes of video signal NTSC signal, of
picture portions, and of burst signals are flat at approximately 0.3,
0.7 and 0.3 V, respectively, and that the level ratio of the burst sig-
nal and “red” signal are 0.30: 0.66. Fig. 6-2-2. shows video signals
(color bars) used in adjusting the video section.
input signal terminal. When check to tuner, connected AERIAL ter-
minal. Check that the amplitudes of video signal NTSC signal, of
picture portions, and of burst signals are flat at approximately 0.3,
0.7 and 0.3 V, respectively, and that the level ratio of the burst sig-
nal and “red” signal are 0.30: 0.66. Fig. 6-2-2. shows video signals
(color bars) used in adjusting the video section.
Video output
(75
Ω
)
Pattern generator
VCR
VIDEO LINE IN
Monitor TV
VIDEO LINE OUT
Fig. 6-2-2.
2-1-4.
Alignment Tape
[Alignment Tape (KRV-51P) ]
1
2
3
4
Mode
SP
EP
Time
Seven minutes
Three minutes
Seven minutes
Three minutes
Video signal
Color bar
Monoscope
Color bar
Monoscope
Audio signal
(HiFi/Normal)
400 Hz
400 Hz
400 Hz
400 Hz
SECTION 6
ADJUSTMENTS
SLV-E820/E870/E920
Approx.
0.7 V
0.7 V
Approx.
0.3 V
0.3 V
Horizontal sync signal
Red
White (approx. 100%)
Burst signal
(To be flat)
(To be flat)
Approx.
0.3 V
0.3 V
6-2
2-1-5.
Specified I/O Level and Impedance
Input/output terminal
Video inputs
Video inputs
LINE IN
: phono jacks
EURO-AV : 21-pin (Pin @º) 1 Vp-p, 75
Ω
,
unbalanced, sync nagative
Audio inputs
LINE IN
: phono jack
47 kW, –75 dBs (0 dBs = 0.775 Vrms)
EURO-AV : 21-pin (Pin 2 and 6)
EURO-AV : 21-pin (Pin 2 and 6)
More than 10 k
Ω
, –4 dBs
Video outputs
LINE OUT : phono jack
EURO-AV : 21-pin (Pin !ª) 1 Vp-p, 75
EURO-AV : 21-pin (Pin !ª) 1 Vp-p, 75
Ω
,
unbalanced, sync negative
Audio outputs
LINE OUT : phono jacks
–7.5 dBs at load
impedance 47k
impedance 47k
Ω
Output impedance : less than 10 k
Ω
EURO-AV : 21-pin (Pin 1 and 3)
Output impedance : less than 1 k
Output impedance : less than 1 k
Ω
–4dBs with 10 k
Ω
load
2-1-6.
Adjusting Sequence
Make the electrical adjustment in the following sequence.
2-2. POWER SUPPLY ADJUSTMENT
2-2-1.
Power Supply Check
(PS-385 BOARD)
(PS-385 BOARD)
Mode
E-E
Measuring Instrument
Digital voltmeter
+F, –F check
Measurement Point
Measurement Point
Pin 4 (+), 1(–) of CN601
Specified Value
4.6 ± 1 Vdc
–30 V check
Measurement Point
Measurement Point
Pin 2 of , CN601
Specified Value
–29 ± 3 Vdc
D6 V check
Measurement Point
Measurement Point
Pin 6 of CN601
Specified Value
5.9 ± 0.5 V
SW12 V
Measurement Point
Measurement Point
Pin 8 of CN601
Specified Value
12 ± 1 Vdc
MTR12 V check
Measurement Point
Measurement Point
Pin !™ of CN601
Specified Value
13.2 ± 1 Vdc
+38 V check
Measurement Point
Measurement Point
Pin !§ of CN601
Specified Value
38.0 ± 3 Vdc
SW5 V check
Measurement Point
Measurement Point
Pin !¶ of CN601
Specified Value
5 ± 0.5 Vdc
Checking Method:
1)
Confirm that each voltage meets its specified value.
Checking power supply
Video system
adjustment
Servo system adjustment
Audio system
adjustment
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