Daewoo DR-4700P Manuale di Servizio Scaricare il pdf (Pagina 5)

FO-2970MU

2 – 1

CHAPTER 2. ADJUSTMENTS

[1] Adjustments

General

Since the following adjustments and settings are provided for this model,

make adjustments and/or setup as necessary.

1. Adjustments

Adjustments of output voltage (FACTORY ONLY)

1. Install the power supply unit in the machine.

2. Set the recording paper and document.

3. When the document is loaded, power is supplied to the output lines.

Confirm that outputs are within the limits below.

Output voltage settings

Fig. 1

Fig. 3

Printer PWB

CNPWCN101

Power

Supply

PWB

2. High voltage power adjustments

The high voltage power adjustments are composed of the MC output

voltage adjustment and the DC bias output voltage adjustment. Either

adjustment is performed with the diag function. (MAIN CHG ADJUST

MODE)

MC output voltage adjustment

In the measurement circuit shown below, adjust VR1 to be –1050V ~

–1200V (aim at –1100V)

Measure with the high

voltage tester

(effective value meter).

DRUM

• Capacitor: 1000pF/3KV (VCKYQY3FB102K)

• Diode: SHV-03 (VHDSHV03///-1)

Fig.2

VR1 (MC output voltage adjustment volume)

–

MC output

voltage check

Output Voltage limits

+5V 4.75V~5.25V

+24VH 23.04V~24.96V

+24V* 23.04V~24.96V

PIN No.

Connector

No.

CNPW

1 +5V

2DG

3DG

4 +24VH

5MG

6MG

7 +24VS

8 PWRLY–

9 HLON–

10 +24V

11 +24V

12 ZC

1 2 3 4 5 6 7 8 9 10 ... 113 114

Commenti su questo manuale

Nessun commento

Daewoo DR-4700P Manuale di Servizio Pagina 5

Commenti su questo manuale