5-8
Samsung Electronics
Troubleshooting
Error code 1-060
Fault
Description
The printed image is dark.
Dark image (1)
Model ML-xxxx
Check
Engine board
Cause
1. No charge voltage in the engine board. (Perform DCU diagnostic code ‘01’ to measure the voltage).
Solution
1-1. Check the following parts :
U201(KA324), Q211(C1008), Q201(D526-Y), T202, U203 (SN7407N),
resistors, diodes in the output and feedback area.
1-2. Clean the high voltage terminal on the engine and its PBA.
1-3. Refer to the following information.
U201(KA324)’s pin #12, #13 ; 2.5~2.9 V, pin #14 ; 5.5~8.5 V
For standby, pin #13 ; 2.7V, pin #12 & #14 ; 0V
Q201’s operating voltage ; base=+2~2.5 V, emitter=0~1 V collector=30~60 V
U203(7407N)’s pin #1 ; 0V input, pin #2 ; 0V output
Remark
Others
Summary of Contents for ML-6050
Page 2: ... Samsung Electronics Co Ltd Mar 1999 Printed in Korea P N JC68 00072A Rev 1 00 ELECTRONICS ...
Page 12: ...Reference Information 3 8 Samsung Electronics Memo ...
Page 32: ...Disassembly and Reassembly 4 18 Samsung Electronics Memo ...
Page 138: ...Schematic Diagrams 8 17 Samsung Electronics 8 4 Flash SIMM ...