IBM V03 Maintenance Information page 51

Table 10. MAP 0140: Printhead drive (continued)
Step Questions/Actions
Disconnect the 26-conductor printhead cable from the logic
6.
board (see Chapter 4, "Locations" on page 145).
See Printhead cable wiring to measure the resistance of pin
5 end-to-end and pin 6 end-to-end.
Is the resistance 5 ohms or less for both pins?
Yes
Re-install the printhead.
Carefully follow the
replacement procedure,
"Printhead" on page 232.
Install a new carriage motor
(see Carriage drive motor
assembly and fan).
- or -
Install a new logic board (see
Logic board).
- or -
Install a new encoder board
(see Encoder board).
- or -
Install a new encoder board
strip (see Encoder strip).
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs.
No
Install new printhead cables.
Re-install the printhead.
Carefully follow the
replacement procedure (see
Printhead).
Run T&D in automatic mode
to verify correct printer
operation (see Running the
test and diagnostic (T&D)
programs).
Chapter 1. Diagnosing problems
51