Sony GV-HD700 (serv.man4) Service Manual ▷ View online
6-28
GV-HD700/HD700E_ADJ
Hexadecimal-decimal Conversion Table
Lower digit of
hexadecimal
Upper digit
of hexadecimal
of hexadecimal
0
1
2
3
4
5
6
7
8
9
A
(
A
)
B
(
b
)
C
(
c
)
D
(
d
)
E
(
E
)
F
(
F
)
0
1
2
3
4
5
6
7
8
9
A (
A
)
B (
b
)
C (
c
)
D (
d
)
E (
E
)
F (
F
)
0
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
77
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
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
174
159
175
160
161
162
163
164
165
166
167
168
169
170
171
172
173
177
176
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
0
1
Note:
The characters shown in the parenthesis ( ) shown the display on the adjustment remote commander.
(Example) If the DDS display or the adjustment remote commander shows BD (
bd
);
Because the upper digit of the adjustment number is B (
b
), and the lower digit is D (
d
), the meeting point
“189” of 1 and 2 in the above table is the corresponding decimal number.
0
2
4-4. DATA PROCESS
The calculation of the DDS display and the adjustment remote
commander display data (hexadecimal notation) are required for
obtaining the adjustment data of some adjustment items. In this
case, after converting the hexadecimal notation to decimal nota-
tion, calculate and convert the result to hexadecimal notation, and
use it as the adjustment data. Indicates the hexadecimal-decimal
conversion table.
commander display data (hexadecimal notation) are required for
obtaining the adjustment data of some adjustment items. In this
case, after converting the hexadecimal notation to decimal nota-
tion, calculate and convert the result to hexadecimal notation, and
use it as the adjustment data. Indicates the hexadecimal-decimal
conversion table.
Table 6-4-1
6-29
GV-HD700/HD700E_ADJ
4-5. SERVICE MODE
Note: Before performing the adjustment, check the data of page:
0, address: 10 is “00”. If not, select page: 0, address: 00,
and set data “00”.
and set data “00”.
1.
Setting the Test Mode
Page A
Address 10
Data
Function
00
Normal
02
Forced VTR power ON
• Before setting the data , select page: 0, address: 01, and set data:
01.
• For page A, the data set will be recorded in the non-volatile
memory by pressing the PAUSE (Write) button of the adjust-
ment remote commander. In this case, take note that the test
mode will not be exited even when the main power is turned off
(8.4 Vdc).
ment remote commander. In this case, take note that the test
mode will not be exited even when the main power is turned off
(8.4 Vdc).
• After completing adjustments/repairs, be sure to return the data
of this address to 00, and press the PAUSE (Write) button of the
adjustment remote commander. And select page: 0, address: 01,
and set data: 00.
adjustment remote commander. And select page: 0, address: 01,
and set data: 00.
2.
Emergence Memory Address
2-1. Emergence Memory Address (Mechanism
section)
Page C
Address F4 to FF
Address
Contents
F4
EMG code when first error occurs
F6
Upper: MSW code when shift starts when first error
occurs
Lower: MSW code when first error occurs
F7
Lower: MSW code to be moved when first error
occurs
F8
EMG code when second error occurs
FA
Upper: MSW code when shift starts when second
error occurs
Lower: MSW code when second error occurs
FB
Lower: MSW code to be moved when second error
occurs
FC
EMG code when last error occurs
FE
Upper: MSW code when shift starts when last error
occurs
Lower: MSW code when last error occurs
FF
Lower: MSW code to be moved when last error
occurs
When no error occurs in this unit, data “00” is written in the above
addresses (F4 to FF). when first error occurs in the unit, the data
corresponding to the error is written in the first emergency ad-
dress (F4 to F7). In the same way, when the second error occurs,
the data corresponding to the error is written in the second emer-
gency address (F8 to FB).
Finally, when the last error occurs, the data corresponding to the
error is written in the last emergency address (FC to FF).
Note: After completing adjustments, be sure to initialize the data
addresses (F4 to FF). when first error occurs in the unit, the data
corresponding to the error is written in the first emergency ad-
dress (F4 to F7). In the same way, when the second error occurs,
the data corresponding to the error is written in the second emer-
gency address (F8 to FB).
Finally, when the last error occurs, the data corresponding to the
error is written in the last emergency address (FC to FF).
Note: After completing adjustments, be sure to initialize the data
of addresses F4 to FF to “00”.
Initializing method:
Order Page Address Data
Procedure
1
0
01
01
2
3
03
FF
3
3
01
37
Press PAUSE (Write) button.
4
3
02
Check the data changes to
“00”.
“00”.
5
3
03
Check the data changes to
“00”.
“00”.
6
0
01
01
6-30
GV-HD700/HD700E_ADJ
0010=2
0111=7
← UNLOAD
Lock released
Cassette compartment
Cassette compartment
Pinch roller pressing
LS chassis movement section
EJ
BL
0011=3
0111=7
ULE
BL
0001=1
0111=7
LD1 (SR)
LD2 (HL)
BL
0101=5
0111=7
BL
0100=4
0111=7
STOP
BL
0110=6
R/P
LOAD
→
← D (MSB)
← C
← B
← A (LSB)
← C
← B
← A (LSB)
Mechanical Position
2-3. MSW Code
MSW when errors occur:
Information on MSW (mode SW) when errors occur
MSW when movement starts:
Information on MSW when movements starts when the mechanism position is moved (When the L motor is moved)
MSW of target of movement:
Information on target MSW of movement when the mechanism position is moved
MSW when errors occur:
Information on MSW (mode SW) when errors occur
MSW when movement starts:
Information on MSW when movements starts when the mechanism position is moved (When the L motor is moved)
MSW of target of movement:
Information on target MSW of movement when the mechanism position is moved
2-2. EMG Code (Emergency Code)
Codes corresponding to the errors which occur are written in C
page, addresses F4, F8 and FC . The type of error indicated by the
code are shown in the following table.
Codes corresponding to the errors which occur are written in C
page, addresses F4, F8 and FC . The type of error indicated by the
code are shown in the following table.
Code
Emergency Type
00
No error
10
Loading motor emergency during loading
11
Loading motor emergency during unloading
22
T reel emergency during normal rotation
23
S reel emergency during normal rotation
24
T reel emergency (Short circuit between S reel
terminal and T reel terminal)
terminal and T reel terminal)
30
FG emergency at the start up of the capstan
40
FG emergency at the start up of the drum
42
FG emergency during normal rotation of the drum
Position
EJ
BL
ULE
LD1 (SR)
LD2 (HL)
STOP
R/P
NULL
Code
2
7
3
1
5
4
6
0
F
Contents
Position at which the cassette component lock is released, at the farthest unload side mechanically
at which the mechanism can move no further in the UNLOAD direction.
at which the mechanism can move no further in the UNLOAD direction.
BLANK code, at the boundary between codes.
EJECT completion position. when the cassette is ejected, the mechanism will stop at this position.
Cassette IN standby. The guide will start protruding out as the mechanism moves towards the
LOAD position.
Cassette IN standby. The guide will start protruding out as the mechanism moves towards the
LOAD position.
When prepraing TOP load processing or when DEW is detected, rolling up tape by T reel is
preformed at this position.
preformed at this position.
When prepraing TOP load processing or when DEW is detected, rolling up tape by S reel is
preformed at this position.
preformed at this position.
Stop position in the loading state. The pinch roller separates, the tension regulator returns, and the
brake is imposed on both reels.
brake is imposed on both reels.
PB, REC, CUE, REVIEW, PAUSE, FF, REW positions. When pinch roller is pressed, and the
tension regulator is ON, the mechanism is operating at this position in modes in which normal
images are shown.
tension regulator is ON, the mechanism is operating at this position in modes in which normal
images are shown.
Code not existing in the MD. Default value.
Status before finding any mechanism position.
6-31
GV-HD700/HD700E_ADJ
3.
Bit Value Discrimination
Bit values must be discriminated using the display data of the ad-
justment remote commander for the following items. Use the table
below to discriminate if the bit value is “1” or “0”.
justment remote commander for the following items. Use the table
below to discriminate if the bit value is “1” or “0”.
(Example) If the remote commander display is “8E”, bit value from
bit 7 to bit 4 can be discriminated from the column A,
and those from bit 3 to bit 0 from column B.
and those from bit 3 to bit 0 from column B.
Page
Address
bit3 to bit0 discrimination
bit7 to bit4 discrimination
Display on the adjustment remote commander
Display on the
adjustment
remote
commander
0
1
2
3
4
5
6
7
8
9
A (
A
)
B (
b
)
C (
C
)
D (
d
)
E (
E
)
F (
F
)
Bit values
bit3
or
bit7
0
0
0
0
0
0
0
0
1
1
1
1
1
1
1
1
bit2
or
bit6
0
0
0
0
1
1
1
1
0
0
0
0
1
1
1
1
bit1
or
bit5
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
bit0
or
bit4
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
A
B
4.
Jack Check (1)
Page 2
Address 73
Using method:
1) Select page: 2, address: 73.
2) By discriminating the bit value of display data, the state of jack can be discriminated.
1) Select page: 2, address: 73.
2) By discriminating the bit value of display data, the state of jack can be discriminated.
5.
Jack Check (2)
Page 7
Address FB
Using method:
1) Select page: 7, address: FB.
2) By discriminating the bit value of display data, the state of jack can be discriminated.
1) Select page: 7, address: FB.
2) By discriminating the bit value of display data, the state of jack can be discriminated.
6.
Jack Check (3)
Page 7
Address FF
Using method:
1) Select page: 7, address: FF.
2) By discriminating the bit value of display data, the state of jack can be discriminated.
1) Select page: 7, address: FF.
2) By discriminating the bit value of display data, the state of jack can be discriminated.
Bit
Function
When bit value = 0
When bit value = 1
0
DC IN jack (FP-705 board J101)
Used
Not used
Bit
Function
When bit value = 1
When bit value = 0
0
A/V OUT jack (JK-345 board CN502)
Used
Not used
Bit
Function
When bit value = 1
When bit value = 0
1
COMPONENT OUT jack (JK-345 board CN503)
Used
Not used
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