Sony SLV-K867CH / SLV-K867PS / SLV-K877MN / SLV-K877PS / SLV-K877TK / SLV-KH7ME / SLV-KH7PS / SLV-KH7TK Service Manual ▷ View online
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SERVICE NOTE
SLV-K867CH/K867PS/K877MN/K877PS/KH7ME/KH7PS
1. “S” MECHANISM EMERGENCY MODE INDICATION
1-1.
Function
In case of emergency, transmitting the code shows the contents of emergency to HITT.
1-2.
Indication
• Indication on the fluorescent display tube
• Observe the RAM in the system controller
20C h
EMG code
20C h
Encode
Upper 4 bit: Target cam position
Lower 4 bit: Position in case of emergency
Table 1. The number of EMG
Table 2. Table of EMG code
L H
M
S
Number of EMG
(Table 1)
EMG code
(Table 2)
Encoder
(Table 3)
Code
Contents
1
First EMG after reset
2
Second EMG after reset
3
Third EMG after reset
Code
00h
10h
11h
12h
20h
21h
22h
23h
24h
25h
30h
31h
40h
41h
42h
43h
44h
50h
60h
70h
Contents
No error
Loading direction
Cam encoder error
Unloading direction
Cam encoder error
On initializing cam position
Cam encoder error
On unloading
T reel slack
On unloading
S reel slack
T reel rotation error
S reel rotation error
FG error during T reel startup
FG error during S reel startup
Error during capstan startup
Error during normal rotation of capstan
FG error during drum startup
PG error during drum startup
FG error during normal rotation of drum
PG error during normal rotation of drum
Phase error during normal rotation of drum
DEW
FL cassette compartment error
DEW eject error
Remarks
HMD not detected
HMD not detected
Only when using special chart
Only when using special chart
Only when using special chart
HMD not detected
HMD not detected
HMD not detected
HMD not detected
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Table 3. Table of mechanism position
Indication:
π π S
Position that error has occurred
Position to go
Position to go
Ex.
The cam encoder error has occurred when moving the mechanism position to FWD and it stops at NC position.
The cam encoder error has occurred when moving the mechanism position to FWD and it stops at NC position.
Position to go = A (FWD)
Position that error has occurred = 0 (NC)
Position that error has occurred = 0 (NC)
Indicates “A0”.
Not to try to rotate the cam motor except when the cam encoder error or the FL cassette compartment error.
An error has occurred at FWD position.
An error has occurred at FWD position.
Position to go = A (FWD)
Position that error has occurred = A (FWD)
Position that error has occurred = A (FWD)
Indicates “AA”.
* NC is the code appears when the mechanism is moving between each position.
Code
0
1
2
3
4
5
6
7
8
9
A
B
C
VTR state
Except for the position as follows
Eject (Including Power off)
Cassette down
Tape unloading end • Dew stop
During tape loading
During tape loading
Tape loading end
RVS variable speed playback (Including STILL,SLOW)
For FWD, FWDP/RVS change
FWD SLOW, FWD STILL
PB, FWD variable speed playback • STOP(DRUM ON)
STOP (DRUM OFF • POWER OFF)
FF/REW
Position
NC
EJECT
CDOWN
ULDEND
TLOAD
HCLEAN
LDEND
RVS
PR
FWDP
FWD
STOP
FR
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2.
EXTENSION CABLES FOR REPAIRING KR-33/34 BOARD
KR-33/34 board
CN501
CN502
J-6090-025-A
J-6090-030-A
CN802
CN801
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3.
HOW TO REPLACE A ROTARY
UPPER DRUM
UPPER DRUM
3-1.
HOW TO REMOVE A ROTARY UPPER DRUM
1)
Remove screw 1 (+P3
×
8) and remove the ground shaft
assembly 2. (Refer to Fig. 4.)
2)
Remove soldering which is marked by arrow and remove the
rotary upper drum board completely.
rotary upper drum board completely.
3)
Remove two screws 3 (PSW3
×
8) and remove the rotary upper
drum in the direction of A. (Refer to Fig. 5.)
If removal is difficult, remove it while rotating it slowly.
If removal is difficult, remove it while rotating it slowly.
Note:
If removal is difficult, check again if soldering is removed
completely.
completely.
Fig. 4
3-2.
HOW TO ATTACH A NEW ROTARY UPPER
DRUM
DRUM
1)
Pay attention so that finger print or like must not be put when
inserting a new upper drum into lower drum.
inserting a new upper drum into lower drum.
2)
Align
mark of the rotary upper drum board with the
mark of the rotary transformer board so that the screw hole on
the upper drum and that on the lower drum are aligned. (Refer
to Fig. 5.)
the upper drum and that on the lower drum are aligned. (Refer
to Fig. 5.)
3)
If attaching is difficult, attach a upper drum while rotating it
slowly.
slowly.
Note:
Pay attention not to damage the video heads.
Confirm that the upper drum is inserted completely.
Confirm that the upper drum is inserted completely.
4)
Tighten the two screws 3 (PSW3
×
8). (Refer to Fig. 5.)
5)
Fix the earth shaft 2 by tightening the screw 1 (+P3
×
8) so
that protrusion at the tip of the earth shaft contacts the center
of the drum shaft.
of the drum shaft.
Note:
When attaching the ground shaft assembly 2, never give
force to the plate spring 4.
force to the plate spring 4.
Fig. 5
1
Screw (+P3
×
8)
2
Ground shaft assembly
Drum when viewed
from the top
from the top
Soldering
4
Plate
spring
Soldering
3
PSW3
×
8
Upper drum assembly
DZR-68A-R
(8-848-625-02)
DZR-68A-R
(8-848-625-02)
Align the two arrow marks.
A
Lower drum assembly
DZL-51B/J-RP (8-848-666-11)
DZL-51B/J-RP (8-848-666-11)
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