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— 5 —

4.

White Balance Adjustment (VF-138 board) ·················· 5-32

1-5.

LCD SYSTEM ADJUSTMENT ··································· 5-33

1.

VCO Adjustment (PD-125 board) ································· 5-33

2.

Black Limit Adjustment (PD-125 board) ······················ 5-34

3.

Bright Adjustment (PD-125 board) ······························· 5-34

4.

Gamma-1 Adjustment (PD-125 board) ························· 5-35

5.

Contrast Adjustment (PD-125 board) ···························· 5-35

6.

Center Level Adjustment (PD-125 board) ····················· 5-36

7.

White Balance Adjustment (PD-125 board) ·················· 5-36

5-2.

MECHANISM SECTION ADJUSTMENT ·················· 5-37

2-1.

HOW TO ENTER RECORD MODE WITHOUT
CASSETTE ··································································· 5-37

2-2.

HOW TO ENTER PLAYBACK MODE
WITHOUT CASSETTE ················································ 5-37

2-3.

TAPE PATH ADJUSTMENT ········································ 5-37

1.

Preparation for Adjustment ··········································· 5-37

2.

Processing after Completing Operations: ······················ 5-37

5-3.

VIDEO SECTION ADJUSTMENT ······························ 5-38

3-1.

PREPARATIONS BEFORE ADJUSTMENTS ············ 5-38

3-1-1. Equipment to Required ·················································· 5-38
3-1-2. Precautions on Adjusting ··············································· 5-39
3-1-3. Adjusting Connectors ···················································· 5-40
3-1-4. Connecting the Equipment ············································ 5-40
3-1-5. Checking the Input Signals ············································ 5-40
3-1-6. Alignment Tapes ···························································· 5-41
3-1-7. Input/Output Level and Impedance ······························· 5-41
3-2.

SYSTEM CONTROL SYSTEM ADJUSTMENT ········ 5-42

1.

Initialization of B, C, D, E, F, 7 Page Data ··················· 5-42

2.

Serial No. Input ····························································· 5-42

2-1.

Company ID Input ························································· 5-42

2-2.

Serial No. Input ····························································· 5-42

3.

Battery End Check (VC-227 board) ······························ 5-44

3-3.

SERVO AND RF SYSTEM ADJUSTMENT ··············· 5-45

1.

Cap FG Duty Adjustment (VC-227 board) ··················· 5-45

2.

T reel FG Duty Adjustment (VC-227 board) ·············· -5-45

3.

PLL f

0

 & LPF f

0

 Adjustment (VC-227 board) ··············· 5-45

4.

Switching Position Adjustment (VC-227 board) ··········· 5-46

5.

AGC Center Level and APC & AEQ Adjustment ········· 5-46

5-1.

Preparations before adjustments ···································· 5-46

5-2.

AGC Center Level Adjustment (VC-227 board) ··········· 5-46

5-3.

APC & AEQ Adjustment (VC-227 board) ···················· 5-47

5-4.

Processing after Completing Adjustments ···················· 5-47

6.

PLL f

0

 & LPF f

0

 Final Adjustment (VC-227 board) ······ 5-47

3-4.

VIDEO SYSTEM ADJUSTMENTS ····························· 5-48

3-4-1. Base Band Block Adjustments ······································ 5-48
1.

Chroma BPF f

0

 Adjustment (VC-227 Board) ················ 5-48

2.

S VIDEO OUT Y Level Adjustment (VC-227 Board) ·· 5-48

3.

S VIDEO OUT Chroma Level Adjustment
(VC-227 Board) ····························································· 5-49

4.

AV OUT Y, Chroma Level Check (VC-227 Board) ······ 5-49

5.

PLL Adjustment (VC-227 Board) ································· 5-50

3-4-2. BIST Check ··································································· 5-51
1.

Playback System Check ················································ 5-51

1-1.

Preparation for Playback ··············································· 5-51

1-2.

IC1900(TRX) BIST(PB) Check ···································· 5-51

1-3.

IC1601(TFD) BIST(PB) Check ···································· 5-51

1-4.

IC1600(SFD) BIST(PB) Check ····································· 5-51

1-5.

IC1501(VFD) BIST(PB) Check ···································· 5-52

2.

Recording System Check ·············································· 5-53

2-1.

Preparations for recording ············································· 5-53

2-2.

IC1501(VFD) BIST(REC) Check ································· 5-53

2-3.

IC1600(SFD) BIST(REC) Check ·································· 5-53

2-4.

IC1601(TFD) BIST(REC) Check ································· 5-54

2-5.

IC1900(TRX) BIST(REC) Check ································· 5-54

3-5.

IR TRANSMITTER ADJUSTMENTS ························· 5-55

1.

IR Video Carrier Frequency Adjustment
(MR-44 board) ······························································· 5-55

2.

IR Video Deviation Adjustment (MR-44 board) ··········· 5-55

3.

IR Audio Deviation Adjustment (MR-44 board) ··········· 5-56

3-6.

AUDIO SYSTEM ADJUSTMENTS ···························· 5-57

1.

Playback Level Check ··················································· 5-58

2.

Overall Level Characteristics Check ····························· 5-58

3.

Overall Distortion Check ··············································· 5-58

4.

Overall Noise Level Check ············································ 5-58

5.

Overall Separation Check ·············································· 5-58

5-4.

SERVICE MODE ·························································· 5-59

4-1.

ADJUSTMENT REMOTE COMMANDER ················ 5-59

1.

Using the adjustment remote commander ····················· 5-59

2.

Precautions upon using the adjustment
remote commander ························································ 5-59

4-2.

DATA PROCESS ··························································· 5-60

4-3.

SERVICE MODE ·························································· 5-61

1.

Setting the Test Mode ···················································· 5-61

2.

Emergence Memory Address ········································ 5-61

2-1.

EMG Code (Emergency Code) ····································· 5-61

2-2.

MSW Code ···································································· 5-62

3.

Bit value discrimination ················································ 5-63

4.

Switch check (1) ···························································· 5-63

5.

Switch check (2) ···························································· 5-64

6.

Record of Use check ······················································ 5-64

6-1.

EXPLODED VIEWS ······················································ 6-1

6-1-1. CABINET (R) SECTION-1 ············································ 6-1
6-1-2. CABINET (R) SECTION-2 ············································ 6-2
6-1-3. CABINET (R) SECTION-3 ············································ 6-3
6-1-4. CABINET (L) BLOCK ASSEMBLY ····························· 6-4
6-1-5. LENS ASSEMBLY, EVF BLOCK ASSEMBLY ············ 6-5
6-1-6. CASSETTE COMPARTMENT AND DRUM ASSY

SECTION ········································································ 6-6

6-1-7. LS CHASSIS SECTION ················································· 6-7
6-1-8. MECHANISM CHASSIS BLOCK SECTION-1 ··········· 6-8
6-1-9. MECHANISM CHASSIS BLOCK SECTION-2 ··········· 6-9
6-2.

ELECTRICAL PARTS LIST ········································ 6-10

*

Parts reference sheet and color reproduction frame are
shown on page 266 and 267.

— 6 —

In this unit, about 10 seconds after power is supplied to the battery
terminal using the regulated power supply (8.4 V), 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.

Connect the servicing remote commander RM-95 (J-6082-053-B)
to the LANC jack, and set the commander switch to the “ADJ”
side.

Use the DC IN terminal. (Use the AC power adaptor (AC-L10, AC-
VQ800 etc. ))

1

Refer to 2-2 to remove the shoe cover.

2

Refer to 2-3. to remove the cabinet (L) assembly.

3

Refer to 2-3. to remove the mechanism deck.

4

Disconnect from CN2303 (4P, 0.8mm) of MR-44 board.

5

Add +4.5 V from the DC POWER SUPPLY and unload with a
pressing the cassette compartment.

CN2303

: Unloading

: Loading

Loading motor 

Disconnect from CN2303 (4P) 
of MR-44 board.

MR-44

BOARD

DC power supply

(+4.5Vdc)

— 7 —

When problems occur while the unit is operating, the self-diagnosis
function starts working, and displays on the viewfinder, LCD screen
or LCD 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.

The “self-diagnosis display” data will be backed up by the coin-type lithium battery (BT1050) of the control switch block (FK-4950). When the
control switch block is removed, the “self-diagnosis display” data will be lost by initialization.

When problems occur while the unit is operating, the counter of the
viewfinder, LCD screen or LCD window consists of an alphabet
and 4-digit numbers, which blinks at 3.2 Hz. This 5-character display
indicates the “repaired by:”, “block” in which the problem occurred,
and “detailed code” of the problem.

The service mode display shows up to six self-diagnosis codes shown in the past.

While pressing the “STOP” key, set the switch from OFF to “VTR”, 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.

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

Turning OFF the power supply will end the service mode display.

Order of previous errors

Backup No.

Self-diagnosis Codes

C : 3 1 : 1 1

[3]

Lights up

Viewfinder or LCD screen

[3] C : 3 1 : 1 1

3 C : 3 1 : 11

LCD window

1 1

3 1

C : 3 1 : 11

C

Repaired by:

Refer to page 8.
Self-diagnosis Code Table.

Indicates the appropriate
step to be taken.
E.g.
31 ....Reload the tape.
32 ....Turn on power again.

Block

Detailed Code

Blinks at 3.2Hz

C : Corrected by customer
H : Corrected by dealer
E : Corrected by service

engineer

Viewfinder or LCD screen

LCD window

C : 3 1 : 1 1

Control dial 

— 8 —

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

E

E

E

E

0

4

2

1

2

2

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

1

3

2

3

2

3

2

3

2

3

2

3

2

3

2

3

2

6

1

6

1

6

2

6

2

0

0

0

0

0

0

1

0

1

1

2

0

2

1

2

2

2

3

2

4

3

0

4

0

4

2

1

0

1

1

2

0

2

1

2

2

2

3

2

4

3

0

4

0

4

2

0

0

1

0

0

0

0

1

Non-standard battery is used.

Condensation.

Video head is dirty.

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.

Winding S reel fault when counting the
rest of tape.

T reel fault.

S reel fault.

T reel fault.

FG fault when starting capstan.

FG fault when starting drum.

FG fault during normal drum operations.

LOAD direction loading motor time-
out.

UNLOAD direction loading motor
time-out.

T reel side tape slacking when
unloading.

Winding S reel fault when counting the
rest of tape.

T reel fault.

S reel fault.

T reel fault.

FG fault when starting capstan.

FG fault when starting drum

FG fault during normal drum
operations

Difficult to adjust focus
(Cannot initialize focus.)

Zoom operations fault
(Cannot initialize zoom lens.)

Steadyshot function does not work well.
(With pitch angular velocity sensor output
stopped.)

Steadyshot function does not work well.
(With yaw angular velocity sensor output
stopped.)

Use the info LITHIUM battery.

Remove the cassette, and insert it again after one hour.

Clean with the optional cleaning cassette.

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.

Inspect the lens block focus MR sensor (Pin wf,wg of CN171 of
CD-234 board) when focusing is performed when the control dial
is rotated in the focus manual mode, and the focus motor drive circuit
(IC401 of VC-227 board) when the focusing is not performed.

Inspect the lens block zoom MR sensor (Pin 2,3 of CN171 of
CD-234 board) when zooming is performed when the zoom lens is
operated and the zoom motor drive circuit (IC401 of VC-227 board)
when zooming is not performed.

Inspect pitch angular velocity sensor (SE451 of MA-367 board)
peripheral circuits.

Inspect yaw angular velocity sensor (SE450 of MA-367 board)
peripheral circuits.