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— 5 —

1.

Before starting adjustment ··············································· 5-1

1-1.

Adjusting items when replacing main parts and boards. · 5-2

5-1.

ADJUSTMENT PREPARATIONS ································· 5-3

1-1.

PREPARATIONS BEFORE ADJUSTMENT ················· 5-3

1-1-1. List of Service Tools ························································ 5-3
5-2.

MECHANISM SECTION ADJUSTMENT ···················· 5-4

2-1.

HOW TO ENTER RECORD MODE WITHOUT
CASSETTE ····································································· 5-4

2-2.

HOW TO ENTER PLAYBACK MODE WITHOUT
CASSETTE ····································································· 5-4

2-3.

TAPE PATH ADJUSTMENT ·········································· 5-4

1.

Preparation for Adjustment ············································· 5-4

2.

Processing after Completing Operations ························· 5-4

5-3.

ELECTRICAL ADJUSTMENT ······································ 5-5

3-1.

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

3-1-1. Equipment to Required ···················································· 5-5
3-1-2. Precautions on Adjusting ················································· 5-6
3-1-3. Adjusting Connectors ······················································ 5-6
3-1-4. Connecting the Equipment ·············································· 5-7
3-1-5. Alignment Tapes ······························································ 5-8
3-1-6. Input/Output Level and Impedance ································· 5-8
3-2.

INITIALIZATION OF B, C, D, E, F, 7, 8 PAGE DATA · 5-9

3-2-1. INITIALIZATION OF E, F, 7 PAGE DATA ··················· 5-9
1.

Initializing the E, F, 7 Page Data ····································· 5-9

2.

Modification of E, F, 7 Page Data ··································· 5-9

3.

F Page Table ···································································· 5-9

4.

E Page Table ···································································· 5-9

5.

7 Page Table ····································································· 5-9

3-2-2. INITIALIZATION OF C, D, 8 PAGE DATA ················ 5-10
1.

Initializing the C, D, 8 Page Data ·································· 5-10

2.

Modification of C, D, 8 Page Data ································ 5-10

3.

C Page Table ·································································· 5-10

4.

D Page Table ·································································· 5-12

5.

8 Page Table ··································································· 5-13

3-2-3. INITIALIZATION OF B PAGE DATA ························· 5-14
1.

Initializing the B Page Data ··········································· 5-14

2.

Modification of B Page Data ········································· 5-14

3.

B Page Table ·································································· 5-14

3-3.

SYSTEM CONTROL SYSTEM ADJUSTMENT ········ 5-15

1.

Serial No. Input ····························································· 5-15

1-1.

Company ID Input ························································· 5-15

1-2.

Serial No. Input ····························································· 5-15

3-4.

SERVO AND RF SYSTEM ADJUSTMENT ··············· 5-17

1.

Cap FG Duty Adjustment (VC-275 board) ··················· 5-17

2.

PLL f

0

 & LPF f

0

 Adjustment (VC-275 board) ·············· 5-17

3.

Switching Position Adjustment (VC-275 board) ··········· 5-18

4.

AGC Center Level and APC & AEQ Adjustment ········· 5-18

4-1.

Preparations before adjustments ···································· 5-18

4-2.

AGC Center Level Adjustment (VC-275 board) ··········· 5-19

4-3.

APC & AEQ Adjustment (VC-275 board) ···················· 5-19

4-4.

Processing after Completing Adjustments ···················· 5-20

5.

PLL f

0

 & LPF f

0

 Fine Adjustment (VC-275 board) ······ 5-20

3-5.

VIDEO SYSTEM ADJUSTMENTS ····························· 5-21

1.

40.5MHz/54MHz Origin Oscillation Adjustment
(MS-95 board) ······························································· 5-21

2.

Chroma BPF f

0

 Adjustment (VC-275 board) ················ 5-21

3.

S VIDEO OUT Y Level Adjustment (VC-275 board) ··· 5-22

4.

S VIDEO OUT Chroma Level Adjustment
(VC-275 board) ····························································· 5-22

3-6.

AUDIO SYSTEM ADJUSTMENTS ···························· 5-24

1.

Playback Level Check ··················································· 5-24

2.

Overall Level Characteristics Check ····························· 5-24

3.

Overall Distortion Check ··············································· 5-24

4.

Overall Noise Level Check ············································ 5-25

5.

Overall Separation Check ·············································· 5-25

3-7.

LCD SYSTEM ADJUSTMENT ··································· 5-26

1.

LCD Initial Data Input (1) ············································· 5-26

2.

LCD Initial Data Input (2) ············································· 5-27

3.

VCO Adjustment (PD-130 board) ································· 5-27

4.

RGB AMP Adjustment (PD-130 board) ························ 5-28

5.

Contrast Adjustment (PD-130 board) ···························· 5-28

6.

COM AMP Adjustment (PD-130 board) ······················· 5-29

7.

V-COM Adjustment (PD-130 board) ···························· 5-29

8.

White Balance Adjustment (PD-130 board) ·················· 5-30

5-4.

SERVICE MODE ·························································· 5-31

4-1.

ADJUSTMENT REMOTE COMMANDER ················ 5-31

1.

Using the adjustment remote commander ····················· 5-31

2.

Precautions upon using the adjustment remote
commander ···································································· 5-31

4-2.

DATA PROCESS ··························································· 5-32

4-3.

SERVICE MODE ·························································· 5-33

1.

Setting the Test Mode ···················································· 5-33

2.

Emergence Memory Address ········································ 5-33

2-1.

EMG Code (Emergency Code) ····································· 5-33

2-2.

MSW Code ···································································· 5-34

3.

Bit value discrimination ················································ 5-35

4.

Switch check (1) ···························································· 5-35

5.

Switch check (2) ···························································· 5-35

6.

Switch check (3) ···························································· 5-35

7.

Switch check (4) ···························································· 5-36

8.

Switch check (5) ···························································· 5-36

9.

Record of Use check ······················································ 5-37

10.

Record of Self-diagnosis check ····································· 5-37

6-1.

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

6-1-1. OVERALL SECTION ····················································· 6-1
6-1-2. CABINET (UPPER) SECTION-1 ·································· 6-2
6-1-3. CABINET (UPPER) SECTION-2 ·································· 6-3
6-1-4. LCD SECTION ······························································· 6-4
6-1-5. CASSETTE COMPARTMENT AND DRUM BLOCK

ASSEMBLY ···································································· 6-5

6-1-6. LS CHASSIS BLOCK ASSEMBLY ······························· 6-6
6-1-7. MECHANISM CHASSIS BLOCK ASSEMBLY ··········· 6-7
6-2.

ELECTRICAL PARTS LIST ·········································· 6-8

1-1

In this unit, about 10 seconds after power is supplied (8.4V) to the battery terminal, the power is shut off so that the unit cannot operate.
These following two methods are available to prevent this. Take note of which to use during repairs.

Method 1:
Use the DC IN terminal. (Use the AC power adaptor. (AC-L10, AC-VQ800 etc.))

Method 2:
Connect the adjustment remote commander RM-95 (J-6082-053-B) to the LANC jack, and set the HOLD switch to the “ADJ” side.

1

Remove the power supply (Battery or AC power adaptor).

2

Push the EJECT switch and open the cassette lid.

3

Refer to 2-4. to remove the cabinet (lid) assembly.

4

Refer to 2-4. to remove the cabinet (bottom) assembly.

5

Add 5V from the regulated power supply between ULD 5V + (Pin 3, 4 of CN936) and ULD 5V – (Pin 1, 2 of CN936), and unload
the cassette.

Regulated 
power supply (+5V)

VC-275 board

+

–

ULD5V

1-2

When problems occur while the unit is operating, the self-diagnosis
function starts working, and displays on the LCD screen 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 of FP-571 flexible board. When this coin-type lithium battery
is removed, the “self-diagnosis display” data will be lost by initialization.

When problems occur while the unit is operating, the counter of the
LCD screen shows a 4-digit display consisting of an alphabet and
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.

3-1. Display Method
While pressing the “STOP” key, set the POWER switch from OFF to ON, and continue pressing the “STOP” key for 10 seconds continuously.
The service mode will be displayed, and the counter will show the backup No. and the 5-character 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

3-3. End of Display
Turning OFF the power supply will end the service mode display.

1 1

3 1

C

C : 3 1 : 1 1

C : 3 1 : 1 1

[3]

[3] C : 3 1 : 1 1

Control dial

1-3E

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

C

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

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

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

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.