COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED
LINE WITH MARK 0 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.
DCR-TRV120E
100×
a
a
DCR-TRV125E
125×
a
a
DCR-TR8000E
100×
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.
DCR-TR8100E
125×
×
×
×
×
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 B+ voltage to see it is at the values specified.
6. Flexible Circuit Board Repairing
• Keep the temperature of the soldering iron around 270 ˚C
during repairing.
• Do not touch the soldering iron on the same conductor of
the circuit board (within 3 times).
• Be careful not to apply force on the conductor when sol-
dering or unsoldering.
– 2 –
TABLE OF CONTENTS
SectionTitlePageSectionTitlePage
SERVICE NOTE
1.Power Supply During Repairs....................................... 4
Superimposing a Title.............................................................. 36
Making Y our Own Titles ........................................................... 37
– 3 –
SERVICE NOTE
1.POWER SUPPLY DURING REPAIRS
In this unit, about 10 seconds after power is supplied (8.4 V) to the
battery terminal using the service power cord (J-6082-223-A), the
power is shut off so that the unit cannot operate.
This following two methods are available to prevent this. Take
note of which to use during repairs.
Method 1.
Connect the servicing remote commander RM-95 (J-6082-053-B)
to the LANC jack, and set the remote commander switch to the
“ADJ” side.
Method 2.
Press the battery switch of the battery terminal using adhesive tape,
etc.
Battery switch
Battery terminal 3
Method 3.
DC IN terminal
Use the DC IN terminal. (Use the AC power adaptor.)
Battery SIG terminal
2.TO TAKE OUT A CASSETTE WHEN NOT EJECT (FORCE EJECT)
1 Refer to 2-4 to remove the front panel assembly.
2 Refer to 2-6 to remove the cabinet (L) assembly.
3 Refer to 2-7 to remove the cabinet (R) assembly.
4 Refer to 2-13 to remove the battery panel assembly.
5 Disconnect CN4401 of VC-235 board.
6 Add +5 V from the DC POWER SUPPLY and unload with a
pressing the cassette lid.
7 Pull the timing belt in the direction of the
arrow with a pincette while pressing
the cassette lid (take care not to damage)
to adjust the bending of a tape.
Pincette
Timing belt
Battery terminal #
Press the cassette lid to rise
the cassette compartment
[DC power supply]
(+5V)
8 Let go your hold the cassette
lid and rise the cassette
compartment to take out a cassette.
Timing belt
Loading motor
Disconnect CN4401
of VC-235 board.
Adjust the bending of a tape
– 4 –
3.NOTE FOR REPAIR
When installing a connector, don’t press down at wire of connector.
Be in danger of the snapping of a wire.
Make sure that the flat cable and flexible board are not cracked of
bent at the terminal.
Do not insert the cable insufficiently nor crookedly.
Cut and remove the part of gilt
which comes off at the point.
(Take care that there are some
pieces of gilt left inside)
When remove a connector, don’t pull at wire of connector.
Be in danger of the snapping of a wire.
– 5 –
SELF-DIAGNOSIS FUNCTION
1.Self-diagnosis Function
When problems occur while the unit is operating, the self-diagnosis function starts working, and displays on the viewfinder or Display window what to do. This function consists of two display;
self-diagnosis display and service mode display.
Details of the self-diagnosis functions are provided in the Instruction manual.
ViewfinderDisplay window
C : 3 1 : 1 1
Repaired by:
C : Corrected by customer
H : Corrected by dealer
E : Corrected by service
engineer
Blinks at 3.2Hz
C
Indicates the appropriate
step to be taken.
E.g.
31 ....Reload the tape.
32 ....Tur n o n power again.
3 1
Block
1 1
C : 3 1 : 11
Refer to page 10 and 11.
Self-diagnosis Code Table.
2.Self-diagnosis Display
When problems occur while the unit is operating, the counter of
the viewfinder or Display window sho ws a 4-digit display consisting of an alphabet and numbers, which blinks at 3.2 Hz. This 5character display indicates the “repaired by:”, “block” in which
the problem occurred, and “detailed code” of the problem.
Display window
Detailed Code
3.Service Mode Display
The service mode display shows up to six self-diagnosis codes shown in the past.
3-1.Display Method
While pressing the “STOP” key, set the switch from OFF to “VTR or PLAYER”, and continue pressing the “STOP” key for 5 seconds
continuously. The service mode will be displayed, and the counter will show the backup No. and the 5-character self-diagnosis codes.
Viewfinder
[3] C : 3 1 : 1 1
Lights up
[3]
Backup No.
Order of previous errors
C : 3 1 : 1 1
Self-diagnosis Codes
3-2.Switching of Backup No.
By rotating the control dial, past self-diagnosis codes will be shown in order. The backup No. in the [] indicates the order in which the
problem occurred. (If the number of problems which occurred is less than 6, only the number of problems which occurred will be shown.)
[1] : Occurred first time[4] : Occurred fourth time
[2] : Occurred second time[5] : Occurred fifth time
[3] : Occurred third time[6] : Occurred the last time
Display window
3 C : 3 1 : 11
Control dial
3-3.End of Display
Turning OFF the power supply will end the service mode display.
Note: The “self-diagnosis display” data will be backed up by the coin-type lithium battery (CF-69/71 board BH001). When
this coin-type lithium battery is disconnected, the “self-diagnosis display” data will be lost by initialization.
– 6 –
4.Self-diagnosis Code Table
Self-diagnosis Code
Repaired by:
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
C
Block
Function
21
22
23
31
31
31
31
31
31
31
31
31
31
31
31
31
32
32
32
32
32
32
32
32
32
32
32
32
32
Detailed
Code
00
00
00
10
11
20
21
22
23
30
31
40
41
42
43
44
10
11
20
21
22
23
30
31
40
41
42
43
44
Symptom/State
Condensation.
Video head is dirty.
Non-standard battery is used.
LOAD direction. Loading does not
complete within specified time
UNLOAD direction. Loading does not
complete within specified time
T reel side tape slacking when unloading
S reel
side tape slacking when unloading
T reel fault.
S reel fault.
FG fault when starting capstan.
FG fault during normal capstan operations.
FG fault when starting drum.
PG fault when starting drum.
FG fault during normal drum operations.
PG fault during normal drum operations.
Phase fault during normal drum operations.
LOAD direction loading motor time-
out.
UNLOAD direction loading motor
time-out.
T reel side tape slacking when
unloading.
S reel side tape slacking when
unloading.
T reel fault.
S reel fault.
FG fault when starting capstan.
FG fault during normal capstan
operations.
FG fault when starting drum.
PG fault when starting drum.
FG fault during normal drum
operations.
PG fault during normal drum
operations.
Phase fault during normal drum
operations.
Correction
Remove the cassette, and insert it again after one hour.
Clean with the optional cleaning cassette.
Use the InfoLITHIUM battery.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
.
Load the tape again, and perform operations from the beginning.
.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Load the tape again, and perform operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
Remove the battery or power cable, connect, and perform
operations from the beginning.
– 7 –
Self-diagnosis Code
Repaired by:
E
E
E
E
Block
Function
61
61
62
62
Detailed
Code
00
10
00
01
Symptom/State
Difficult to adjust focus
(Cannot initialize focus.)
Handshake correction function does not
work well. (With pitch angular velocity
sensor output stopped.)
Handshake correction function does not
work well. (With yaw angular velocity
sensor output stopped.)
Correction
Inspect the lens block focus reset sensor (Pin 9 of CN1551 of
VC-235 board) when focusing is performed when the control dial
is rotated in the focus manual mode and the focus motor drive circuit
(IC1553 of VC-235 board) when the focusing is not performed.
Note: Use the remote commander RM-95 only for the model without the
focus dial.
Inspect the lens block zoom reset sensor (Pin 0 of CN1551 of
VC-235 board) when zooming is performed when the zoom lens is
operated and the zoom motor drive circuit (IC1553 of VC-235
board) when zooming is not performed.