The guide may cover several variants, or it may be the wrong revision. A feature described in a shared manual can be optional rather than missing from your cooker.
What the observation means
Fuel type, width and manufacturing series can change the control layout. Installation and service sections can also describe equipment not intended for owner adjustment.
A useful next step
Match the complete model and product reference before following a procedure. If the control diagram still differs, ask the manufacturer to identify the correct guide. Do not remove blanking pieces, fit an extra knob or assume the cooker has been incompletely assembled based on a generic illustration.
Manuals and supporting guidance
Model-specific instructions take priority. These references support the practical principles discussed here; they do not diagnose your appliance.